UNCLASf7II FIED

AD 407 7j194

DEFENSE DOCUMENTATION CENTERFOR

SCIENTIFIC AND TECHNICAL INFORMATION

CAERON STATION, ALEXANDRIA, VIRGINIA

UNCLASSIFIED

NOTICE: When government or other drawings, speci-fications or other data are used for any purposeother than in connection with a definitely relatedgovernment procurement operation, the U. S.Government thereby incurs no responsibility, nor anyobligation whatsoever; and the fact that the Govern-ment may have formulated, furnished, or in any waysupplied the said drawings, specifications, or otherdata is not to be regarded by implication or other-wise as in any manner licensing the holder or anyother person or corporation, or conveying any rightsor permission to manufacture, use or sell anypatented invention that may in any way be relatedthereto.

L_ '• REPORT OF RESULTS

PROJECT AF 61-2

EASTERN PACIFIC SURVEY

[ VOL. IV m

[4-

15 JUNE 1963

man 1370TH PHOTO-MAPPING WING

Lf AIR PHOTOGRAPHIC & CHARTING SERVICE (MATS)

[

FINAL REPORT

HAWAIIAN GRAVITY SURVEY

MARCH 1963

Prepared byData Reduction Division

APPROD:

ffARY G.ETER N, olonl, USAF.Command/t

1381ST GEODETIC SURVEY SQUADRON (MISSILE)AIR PHOTOGRAPHIC AND CHARTING. SERVICE

UNITED STATES AIR FORCE 'Orlando Air Force Base, Florida

I

ABSTRACT

This report contains computations and results for the

gravity survey accomplished bythe 1381st Geodetic Survey

Squadron (Missile) in support of the Hawaiian HIRAN Project,

AF61,2,o The gravity work includes base station surveys and

observations along level lines.. The base station to which

all fib.al data is relerred is. the MATS terminal base station

located at Hickam AFB, Hawaii. To obtain gravity values re-

ferred to the first order pendulum station in the Bishop Museum,

subtract 0.9 mgals fromtbo values contained in this report.

TABLE OF CON'_TrNTS

Page No.ABSTRAC~T

INTRODUCTION ..............................................

Figures 1 and 2: Gravity Survey Plots ................

Figures 3 , 8: Main Loop Sketches ...................

INSTRUMENTS ................................................

SPEC• I CATIONS ...........................................

SURVEY OPERATIONS ........................................

COMPUTATIQNS ..............................................

ABSTRACTS OF GRAVITY DATA. .................................

ACOURACY OF THE RESULTS ................................

.,ONcU ONE.................................................

SECURITY C.ASSIFIC TION1 ....................................

APPENDI;X A- TABULATED DATA. ...............................

Abstract of Gravity Data ..............................

Comparison of Wisconsin and 1381st GSS(M) Data ........

Tables of Dial Factors ................................

"Leat Squares Adjustment of Gravity Observations3 ......

Gravity Difference Compariso-n: Leoop VejrsuS Single-,....Drift Rate ............................................

Mean Gravity Difference Comparison: loop VersusSigle Drift Rate .....................................

APPENDIX B - LOOP COMPUTATIONS ............................

APPENDIX C - STATION DESCRIPTIONS .........................

REFERENCESS ................................................

INTRODUCTION

The gravity survey covered in this report was undertaken to

obtain, gravity data along and in the vicinity of the Hawaiian

laland chain using transportation on an availability basis from

the Hawaiian HIRAN Project, 61-2. The data acquired by the 1381st

Geodetic Survey Squadron (Missile) in the Hawaiian area will in

time contribute to the determination of geoid undulations in the

area. Gravity base stations were eatablished or reoccupied on the

ialandsa of Kure, Midway, Johnston, Lisians'i, Laysan, French

Fri-gate Shoals, Lanai, Oahu, Molokai, Maui, Kauai, and Hawaii; in

addition, gravity observations were made along the USGS level

lines on the last four islands. The stations observed are shown

in figures 1 and 2, and the main loop schemes are given in figures

3-8.

All grav-ty survey data acquired during the project was re-

duced by the 1381st GSS(M).

The gravity survey program and, specifications were prepared

by the Air Photographic and Charting Service (APCS) and are con-

tained in Addendum Nr. 1 to APCS OPIAN 502-61, dated 22 June 1961.

I

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I oLo

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-A-

.7

2

00

0

00.-z 94

IL

a.0T11%

W X 44WD

IIz Ix

-I 7 0T2

z z 4V)44 4rrn Z; 0I

1381S3T GS3S (M)

GRAVITY PROJEClT SKETCH

Project: Hawaiian Base Station Survey_ Area: Hawaiian Trlhqnd

Dates: I July 1961 to. __23 Au•,i+ 1941

0C Existing Gravity Station

0 Gravity Station to be Established

New Gravity Station I

Sequence of Loop Observations

SKETCH Worden Master 615 & 617

KUREISLAND

MIDWAY

- IKAM~ AFB

I ISLAND

MIDWAY

OLD OPS BLDG

I SLN

MIDWAY MIDgAY

GATE 2 lq.CKAM AFSTS TERM

1381ST GSS (M)

GRAVITY PROJECT SKETCH

Project: Hawaiian Base Station S-mey_ Area: Hawa!iian Ts1And

Dates: I July 1961 to_ 23 A=uit JQAI

O Existing Gravity Station

0 Gravity Station to be Established

'New Gravity Station

Sequence of Loop Observations

SSKECI Worden Master 615 & 617

'FRENCH FRIGATE SHOALS

HICKAM AFB

Fig. 4

1381ST GSS (M)

GRAVITY PROJECT SKETCH

Projects Hawaiian Baso Station Survey Areas Hawaiian IslandsDpates: July 1961 to 23 August 1961

SExisting Gravity Station

0 Gravity Station to be Established

O Now Gravity Station

c- O Sequence of Loop Observations

SKgICH Worden Master 615 & 617

{ ,,ICKAM A,.FB

•MOLOKAI AIRPORT

KAHULUI AIRPORT

KAMUELA AIRPORT

BISHOP MUSEUMPENDULUM

GENERAL LYMANFIELD

HICKAM '08B

Fig. '5

13SlST GSS (M)

GRAVITY PROJECT SKETCH

Project: Hawaiian Base Station Survey Areas Hawaiin h19a1nd

Dates: 1 July 1961 to 23 August 1961

0 Existing Gravity Station

0 Gravity Station to be Established

New Gravity Station

Q)- ) Sequence of Loop Observations

S• CH Worden Master 615 & 617,

BONHAM

ALF

. .. , LIHUE AIRPORT

HICKAM AFS

Fip. 6

1381ST GSS (M)

GRA.VITY PROJECT SXKrCH

Project: Hawaiian Base.Statton Survey Areas Ffmwii~n Tglqnvdq

Dates: 1 July 1961 to 23 August 1961

S Existing Gravity Station

o Gravity Station to be Established

OP New Gravity Stationi

Sequence of Loop Observations

SK~CHWorden Master 615,& 617

HICKAM AFS

lAOLOKAI

KAHULUI AIRPORT

LANAI AIRPORTHANA AIRPORT

Fi.(g. 7

1381ST GSS (H)

GRAVITY PROJEMT SKETC!

Project: Hawaiian Base Station Survey Areas .... TA3luwiv

Dates: ___1. 11y 1961 to 2, A,, pt 1t96

0 Existing Gravity Station.

0 Gravity Station to be Established

O New Gravity Station

- Sequence of Loop Observations

SKCCH Worden Master 615 & 617 UPO.U POINTAIRPORT

NICKAM AFS

KAMUELAAIRPORT

KAMUELA AIRPORT

KONA AIRPORT

4ENERAL LYMAN FIELD

Fit. 8

INSTRUJMENTS

Two Worden Master gravity meters were used for the survey.

These instruments, numbered 615 and 617, are of the unstable

type and have a three piece quartz spring element. Each instru-

ment has a single dial of'2200 dial units range or over 1500

mgals without reset. The effects of temperature on instrument

drift variability and rate is minimized by means of the insula-

ting yacuum flask protecting the instrquent, the temperature

variation compensation system, and the low powered temperature

stabilization system which provides. actual temperature control.

The quartz spring element is sealed in partial vacuum (about

seven mm) for protection against contamination and to minimize

the effects of changing atmospheric pressure. The weight of an

instrument with its carrying case, battery charger and other

associated equipment is about 25 pounds.

Instrument calibration and linearity of instrument drift

are discussed in the Computations Section.

SPECI FI CATIONS

The following specifications for the gravity survey were

.extracted from Annex Alfa of Addendum Nr. 1 to APCS OPIAN 502-

61, dated 22 June 1961:

1. Secondorder gravity base stations will be established with

an accuracy of 0.5 milligal relative to the first-order gravity

base located in Bishop Museum, in Honolulu, Hawaii.

2. Gravity metegs used in this work will be calibrated before and

after the field surfey over appropriate-base stations of the North

American Calibration Range.

3. Second-Order gravity-base stations will be described on 1381st

Form 23, of March 61. (See Tab A, Appendix II)

4. Regional gravity stations will be established on previously des-

cribed level bench marks and will be tied to the second-order gra-

vity base network tO an accuracy of 0.5 milligal. In general, these

stations will be established at intervals.of five miles along the

existing level lines in areas where existing gravity data is inade-

quate for regional' coverage.

5. Elevations of second~order and regional gravity stations will

be determined to an accuracy of ± 10 feet with reference to mean

sea level. This is a minimum requirewet for accuracy, the maximum

useful accuracy is.! 1 foot.

6. Geographic coordinates for gravity stations will be scaled from

existing-mapp. DIesirable accuracy for-these coordinates is + 0.1

minute of arc.

SURVY. OPERATIONS

The Hawaiian area gravity survey was accomplished during the

period July - August 1961. The order of survey and mode of trans-

portation were Laysan Island, Lisianski, Southeast Island, Midway,

French Frigate Shoals and Johnston Island using IST and aircraft

transportation; airport bases in the Hawaiian area, Kure and Midway

Islands using aircraft transportation; and regional surveys of

Kauai, Molokai, Maui and Hawaii using jeep transportation, Clo-

Ssures obtained may be seen from the loop computations in appendix

B and are discussed in the computation section of the report. The

loop base stations; used for the Hawaiian project Were: Hickam AFB,

Molokai, Kahului, and Kanuela Airports.

The gravity stations established along level lines at 5 to 10

mile intervals were referenced to. the base stations established in

the survey. The descriptions for many.Of the benchmarks recovered

and used are contained in the USGS Bulletin 561, "Results of Spirit

Leveling, in Hawaii, 1910-1913".

CamPUTATI ONS

Total instrument travel drift was taken to be the loop closure

obtained after correcting observations for non travel drift and

tidal effects. Travel drift..corrections for each observation were

then obtained by prorating the above loop closures on the basis of

elapsed travel time of observation from the loop base station. With

the exception of a Hickam AFB to Midway loop which took over a week

to complete and had a-closure of - 2.53 mgals, the longest travel

time spent on a loop was slightly less than a day. The maximum

closure obtained, again excluding the Hickam - Midway loop, was

-. 1.22 mgals. The average travel time for loop completion was

about eight hours and aVerage closure without regard to sign was

•0.29 mgals.

The"'!i4al GravityEffect Tables" published by the Houston

Technical Laboratories were used to deterwine and remove the effect

of the attraction of the *un and moon on the gravity measurements.

After correcting for tidal effects, drift during, stops or delays

and drift during travel, gravity differences between each, station

and the- loop base, station.were- coiputed.

The table-of dial factors whichwas used for Worden Master

gravity meter 617 and the single factor used for 615 are given in

Appendix A. The single dial factor for 615 resulted from a calibra-

tion against a, numiber of Professor Woollard's airport gravity base

values in the United States. 1 The dial factors for 617 were deter-

Amined from instrument measurements taken at sites between Key West,

Florida and Charleston, South Carolina which were established with

a prospecting type- Worden Master gravity meter. The resulting

dial factors were then corrected for scale error using data from

observations made at stations established by the University of

Wisconsin. 2 The Wisconsin stations used were Orlando, Atlanta,

Chattanooga, Washington, Philadelphia, McGuire AFB, and Jackson-

vi Ile.

Subsequent reca.libration computations based on observations

over an extended range from Bogota, Colombia to Hanscom Field,

Massachusetts has produced scale changes in the dial factors used

for the Hawaiian project of less than 1 part in 3000 for 617 and

essentially no change for 615.3 ,The loop ,computations were not

redone using the new-Calibration data since changes in the final

values ubuld have been of the order of 0.1 mgals or less.

To i-upply additionAl data from which. an assessment of the

quality of the survey data.could be made a least, squares straight

line adjustment of. 1$. observations at Hickam AFB Was made. These

observatioxs, made 4r.ing the period 6,July to 7 August 1961,

exhibited a near liz,.ar drift rate. For instrument 615 a drift

rate of 0.5307 t .,007 rgals per day was determined. The mean

residual (departurd of observations from a straight line) taken

without regard to lign was less than 0.1 mgals for the 13 observa-

tions. The drift rate for 617 was determined to be 0.3360 t 0.0029

with: a m-an residdal of less than 0.1 rgals.

These results Were very encouraging from the standpoint of

justification of tinear removal of: drift With. respect to time

and have prompted reconsideration of the necessity of completing

loops in minimum time. The gravity values ,(differences with re-

spect to Hickam APB) computed from the least squares drift rate

were compared with the values computed by the conventional loop

computation (Appendix B) and the results are tabulated in Appendix

A. The average difference without regard to sign between mean values

from the two methods was. pnly.0.04 mgals. The agreement between

instruments withotit regard to sign for observations taken during

the 6 July to 7 Aiguat period was 0.14 magals for the loop compu-

tation method and 0.15 regals fpr the least squares drift rate

method. The abovd insignificant difference between average agree-

ments indicates that the two methods are of comparable validity.

With the least squfres drift rate method, the larger differences

were obtained for the observations at higher elevation indicating

that temperature and preosure-changes affected the instrument

readings. Since pressure and temperature response characteristics

of the instrument can be determined and compensated for, the least

squares drift rate method may yield a greater degree of consistency

and reliability for the computed data.

ABSTRACTS OF GRAVITY DATA

All gravity values given in this report are referred to the

Hickam AFB station whose gravity meter Potsdam system value is

978,933.7 mgals. Based on this value at Hickam AFB a gravity

meter value for the first order station at the Bishop.Museum of

978,952.9 ma~ls was determined which differed from the Wisconsin

gravity meter value by 0.1 mgals. The Wisconsin pendulum value

for the Bishop Museum is, 9.78,952.02, therefore, if gravity results

referred to the pendulum value are desired a - 0.9 mgal correction

must be made to the values given in this report.

Horizontal and vertical positions, their-source, and estimates

of their accuracy are contained in the base station descriptions

given in Appendix C.

ACCURACY OF RESULTS

The average agreement between instruments of t 0.2 mgals, the

agreement of observations from different loops at common sites, the

verification of dial factors used through subsequent recalibration

computations, the small residuals obtained in the least squares drift

rate computation and the loop closures obtained indicate an accuracy

better than the 0.5 mgals specified for the survey. Comparisons

between the survey results and University of Wisconsin values at

common stations (Appendix A) produced a maximum difference of 0.3

mgals and a scale difference of about 1 part in 1500.

CONCLUSIONS

The completed Hawaiian gravity survey has satisfied the speci-

fications given in this report with the exception of the calibration

of instruments on the North American line before and after the survey,

This exception was due to the fret that transportation availability

and other gravity survey project considerations caused the East

Coast Calibration lint (ECCL)3 to b. used instead of the North American.

After the North American, East ,Coast and other gravity meter calibration

lines located throughout the world are interrelated and a world calibra-

tion standard is adopted, the, Hawaiian survey could be recomputed if the

ECQL is changed significantly, howeyer, present data indicates a rela-

tively close agreement between the ECCL and other calibration lines

which should make changes in the ECCL based on the adoption of a uniform

calibration standard very small.

A Network of 21 base stations was established throughout the

Hawaiian Island chain to an accuracy of t 0.5 mgals relative to the

Hickam AFB or Bishop Museum site. A total of 67 gravity stations

have been established along level lines on the Islands of Hawaii,

Molokai, Maui and Kanai to contribute to regional coverage of the

area. The accuracy of these stations, with respect to Hickam AfB

Bishop Museum is also estimated to be ± 0.5 rgals.

The least squares drift rate method of determining final gravity

values appears to be well suited for computation of gegional type

surveys where a large number of observations are involved. It

appears that loop survey completion time can be increased to several

days or even a week.without a ,significant decrease in accuracy of the

gravity valuas established in a regional survey. The computational

procedure is considerably simplified and gravity values can be more

readily determined using the leapt squares athod. Where greater

accuracy is desired with this or any other computational method,

the pressure and teaperature response characteristics can be dater-

I mized and appropriate corrections made.

SECURITY CLASSIFIrATION

All data given in this report ia unclassified in accordance

with Addendum Nr. 1 to APCS OPLAN 502-61, dated 22 June 1961.

REFERENCES

1. Weollard, G. P., "tR&ultg for a Gravity Qontrol Network at

Airports in the United States'",, GOophyuice, Vol. XXlI, No. 3,

July 1958.

2. Woollard,, G.. P., And Repe J. C., "Final Report on Gravity

Program", Reference No. 60-26, Woods Hale Oceanographic Insti-

tution, 19+60.

3. Whalen, C. T., and Lofaro, R. J., "The East Coast Gravity

Meter Calibration Line", presented at 1962 St. Louis ACSM-ASP

Meeting, September 1962.

4. Woollard, G. P., Longfield, R., and Carlson,. B., •"GraVity

Standardizat.ion Studies, Final Report", Reference No. 62-23,

Wooda Hale Oceanographic Institution, 1962.

APPENDIX A

TABUIATED DATA

1. Abstract of Gravity

2. Comparison of Wisconslin and 138lat GSS(M) Data

3. Table of Dial Factors

4. Least Squares Adjustment of Gravity Observations

1 5. Gravity Difference Comparison: Loop Versus Single Drift Rate

6. Mean Gravity Difference Comparison: Loop Versus Single Drift Rate

I

1381st Geodetic SurYey Squadron (Missile)AIR PHOTOGRAPHIC AND CHARTING SERVICE

UNITE D, STATES AIR KORCOrlando Air Force Base, Florida

PROjSCT 'APCS 502-01

ABSTRACTE OF,!j,MY-ITY IMTA

Tust. .615 Inst. .617.Oberved j G Observed Mean

STATI.ON 'al r tMgals Gravity GravitHickam MATS Term. Base IT78 7 Base 978,933.7 97 7Molokai Airport +25.8 959.5 +25.8 959,5 959.5ýKua lapuu USGS

BM "878" -17.4 916.3 -17.3 916.4 916.4Koalaupapa Lookout -81.3 852.4 -81.1 852.6 852.5Kaunakakai USGS EM +25.2 958.9 +25.2 958.9 958.9Hwy -45 Bridge +16.6 .950.3 +16.6 950.3 950.3Koaalo USGS EM "39" +15.9 949.6 +16.1 949.8 -949.7

SPukoo Fishpond +19.5 953.2 +19.4 953.1 953.2Kmnaha Point USGS

EM '178" +21.7 955,4 * ±21.8 955.5 955.4SHalowa USGS EM "25" +29.1 962.8 +29.2 962.9 962,8Puo"ana Reservoir

USGS BM -,35.6 898.1 -35.5 8,98.2 *898.2MaunalOa USGS

TM !1102" -28.0. 905.7 -27.7 906.0 905.8Waieli Trian. Sta. -5.9 927.8 -5.8 927.9 927.8Kbeo Trian.. Sta. - 14+.7 919.0 -14.6 919.1 919.0Lanai Airport -85.8 847.9 -85.5 848.2 848.0Hana Airport -2.25 931.2 - 2.7 931.0 931.TKahului Airport -.44.1 889.6 -44.1 889.6 889.6Kahakuloa USGS BM -37.6. 896.1 -37.7 896.0 896.0Honokowai Hwy 30 --29.7 904.0 -29.7 904.0 904.0Lahaina USGS -35.9 897.8 -35.8 897,9 897.8Olowalu Bridge -36.1 897.6 -36.1 897.6 897.6Intersection Hwy 30

& Hwy 31 -47..3 886.4 -47.3 886.4 886.4Wailuku Courthouve -51.4 882.3 -51.3 882.4 882.4Hwy 37 Maktna Junction

Hwy 31 -155.2 778.5 -154.9 778.8 778.6Kepuni Bridge -93.1 840.6 840.6Puu Maneqneo Trian.

Sta. -62.5 871.2 -62.7 871.0 871.1Kipahulu USGS BM 192 -34.4 • 899.3 -34.6 899.1 899.2Muolea USGS BM 335 -28.0 905.7 -28.2 905.5 905.6Nahiku USGS BM 44-M-

1923 on Bridge -61.5 872.2 -61.5 872.2 872.2KoolaufDitch Intake -88.7 845.0 -88.6 845.1 845.0

Jnst. 615 Ixnt. 617&G ' 0beyrvd =G Observed Mean

STATOil GrN ity Mgaiu Gravity Gravity

.1923 -64.1 978,869..6 ,-64.. .978,869.7 978,869.6Haiku USGS 34 -56.1 8,77.6 -56.2 877..5 877.6Makowae USGS EM *-l22.8 810..9 -122.5 811.2 811.0VUppr Pasi USC&GS 3M -09.3 884.4 -49g.1 884.6 88s4.5Kib*i USC&GS EM -37.5 896.2 -37.5 896.2 896.2H1glak la Crater -634.7 299.0 -634.0 299.7 299.4va-lekals l14S&GS

Trzia:. Sta.sJlokole-,662.0 889.6 -.66.1.2 228.4 228.0Korea Airport -,a4.8 848.9 -.84.6 8•49.1 849.0Kamulela Airport -160.8 772.9 -160.2 7,73.5 773.2Bishop Museum +19.2 952.9 *19.2 952.9 952.9Hilo Gen.Lyman Field- +102.3 875.5 +102.0 875.2 875.4Hwy 19. S. of Pepeekeo

Jet +95,.5 868.7 +95.3 868.5 868.6Nanue Bridge +127.6 900.8 +127.2 900.4 900.6Kilau Bridge +111.7 884.9 +111.4 884.6 884.8Wapunahina Br.idge +104.3 877.5 +104.0 877.2 877.4Honokaa +83.9 857.1 +83.7 856.9 857.0Kukuihaele +110.7 883.9 +110.5 883.7 883.8Waimea -32.4 740.8 -32.4 740.8 740.8Upolu Airport t102.5 875.7 !t102.2 875.4. 875.6Manukona Landing t97.0 .870.2 +96.7 869.9 8,70.0Halawa +112.0 885.2 +111.8 885.0 885.1Makahuna Bridge +123.3 896.5 +122.8 896.0 896.2Keaau +85.8 859.0 +85.6 858.8 858.9Pahoa ,78.4 . 851.6 +78.3 851.5 851.6Kalapana +93.9 867.1 +93.6 866.8 867.0Pohoki +99.0 872.2 +99.0 872.2 872.2Pahala *+25.4 798.6 +25.4 798.6 798.6Hilea +73.3 846.5 +73.2 846.4 846.4Naalehu +44.0 817.2 +'43.9 8.17.1 817.2Kealakekua +0.7 773.9 +0.7 773.9 773.9.Puuanahulu -58.4 714.8 -58.2 715.0 .714.9Auwaiakeakua Bridge -50.3 722.9 -50.3 722.9 722.9Waikyii -172.3 600.9 -172.2 601.0 601.0,USGS. B61 Hwy-2.8 miles

S. of Mtn View -15.7 757.5 -15.6 757.6 757.6Volcano House -102.1 6,71.1 -101.9 671.3 6,71.2Hwy 1 USGS BM. 3 640 -84.8 688.4 -84.8 688.4 688.4Lihue Airport +103.9 979,037.6 +103.8 979,037.5 979,037.6K-I Bridge +73.4 007.1 +73.2 . 006.9 . 007.0Kalahed USGS BM 700 +43.2 978,976.9 +'43.2 978,976.9 978,976.9Port Allen USGS BM 35 +70,.8 979,004.5 +70.6, 979,004.3 979,004.4Waimee USGS BM 9 t87.5 021.2 +87.1 020.8 021.0Wailua Bridge +127.4 061.1 +127.2 060.9 061.0Kapaa Armory +124 058.1 +124.2 057.9 058.0Kabala Point Light

House +11.6.3 050.0 +116.1 049.8 049.9

Inot. 615 Inst. 617=G Observed &G Observed Mean

STATION !%als a.* 14a o~riy4 GravityKoolau School +110.6 979,,04,3 +110.3 9 04.'0 979,=-.2Kilauea Tele. Exc. +111.0 044.7 .110.8 044.5 044.6Hanalei Bridge

USGS BM 17 +136.5 070.2 +136.2 069.9 070.0Wainiha Power House

USGS BM 101 +139.7 073.4 +139.6 .073.3 073.4Kokee 109 AC&W Sta -166.. 1 978,767.6 -165.6 .978,768.1 978,767.8Midway Gate 2 +500.94 9,79,494.6 t501.03 979,494.7 9.79,494.6Kure Is land +606.04 53-9.7 +606.02 539.7 539.7Midway Old Ops. +565.28 499.0 ±565.37 499.1 499.0Johnson Island -214.09 978,719,6 -214.10 9,78,719.6 .9.78,719.6A" L.F. Bonham +12.0.90 979,054.6 +120.87 979,054. 6 979,054.6

SFrench FrigateShoals +246.16 .179.9 +246.01 1,79.7 179.8

Pearl HarborBerth M-3 t04.8 978,938.5 t04.9 978,938.6 978,938.6

Laysan Island-Trp of Beach +369.1 979,302.8 +369.1 979,302.8 979,302.8

Laysar IslandTrian. Sta. +368.4 302.1 +368.5 302.2 302.2S~Lisiawski Is.

C&GS Sta. +421.7 355.4 +421.7 355.4 355.4Lisiaaski Is.

Top of Beach +422.8 3F6.5 +422.9 356.6 356.6-Southeast 14.

Pearl & lrua +510.3 444.0 +510.2 443.9 444.0

I

1ý41mt Geodetic Survey Squmd'ron (missile)AXR .PHTOGRAPI(IC ANP? CH IARTING, SERVICE

UNITED STATES AIR, FORM,Orlando Air -0rce 'Base, Flbr'ida

AaMPAW. LIN OF, Jý3ST SS()%) A.ND UIVSIYO -ISoDSVALU28A¶EWI ,DNSIN~

,,STAT~ION Uni~vereuity OfWt~onsin 13alat Rif fe-ronce,WSga, . Ma!ls WIa 1.

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TABLE OF DIAL FACTORS AND GRAVITY VALUES PER TURN FORWORIEN MASTER GRAVITY .METERS

No, 01A6 No. 617DIAL DIAL MGAL MIAL MGAL"TURNS FACTOR VALUE LFACMTOR VALUE

0 .6932 0.00 .6934 0.001 .6921 69.32 .6943 69.3342 .6905 138.53 .6-946 138.773 .6899 "207.58 .6944 208.234 .6906 .227.6.57 .6938 277.675 .6919 345.63 .6936 347.056 .6925 414.82 .6934 416.417 .6921 484.07 .6937 485.758 .6911 553.28 .6943 555.129 .6911 622.39 .6948 624.5510 .6921 691.50 .6950 694.0311 .6.9,28 760,71 .6945 763.5312 .. 6920 829.99 .6937 832.9813 .6.905 899.19 .6929 902.3514 .6893 968.24 .6925 9,71.64

15 .6897 1, 03.7 . 17 ..6927 1,,040.8916 .6911 1,10.6.14 .6933 1,110.1617 .6923 1,175.25 .6942 1,179.4918 .6921 1,244.48 .6944 1,248.9119 .6914 1,313.69 .69144 1,318.3520 .6918 1,382.83 .6940 1,387.7921 .6929 1,452.01 .6934 1,457.1922 1,521.30 1,526,53

A single factor of 0.6.9594 will be used for Instrument No. 615

Dial factors were determined from the results of the Key West -Charleston Line., based on the factory tilt table calibration ofWorden Master No. 545. These dial factors (and mgal values) werethen corrected - 3.62 mgals/l000 mgals for No. 616 and -3.12 mgals/1000 mga-ls for No. 6,17 based on a least square straight line fit ofresults of the 6 0-tober - 16 Novaxber 1960 trip over stationsOrlando-i, Atlanta, Chattanooga, Washington D.C. Airport, Philadelphia,McGuire and Jacksonville, to W.H.0.I. results for these same stationopublished in their "'Final Report on Gravity Prbgram" Ref. No. 60-26,July'1960.

Cqoputed by: C. T. Whalen, 9 June 1961Checked by: W. H. Radtke, 12 Juuno 1961Copy Checked by: C. T. Whalen, 12 June 1961

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GRAYITY DIFFERENCE COMPARISON: LOOP VERSUS SINGLE DRIFT RATEINSTRUMENT 615

Days from 6 G From 6G From MGAL

Station Date & Hour First Obs Loop Copps Single Drift Differences

Pearl 6,Jul 61Harbor 01.60 0.0383 +4.80 +4.75 +0.05

Iaysan 10 Jul 61Beach 20.95 4.84i46 +369.08 +369,.10 -0.02

Laysan.Hiran 02.83 6.0896 +368.37 +368.45 -0.08

Lis ianskiHiran 21.20 6.8550 +421.73 +421.82 -0.09

LisianskiBeach 21.55 6.8696 +422.80 +422.89 -0.09

PearlHermes 13 Jul 61Hiran 23.83 7.9646 +510.28 *510.40 -0.12

Midway 14 Jul 61Gate 2 20.57 8.8288 *561.00 t561.14 -0.14

Midway 19 Jul 61Gate 2 03.08 13.1000 +560.90 +561.00 -0.10

KureIsland 22.42 13.9058 +606.04 +606.21 -0.17

Midway 20 Jul 61Gate 2 04.52 14,1600 +560.96 +561.18 -0.22

MidwayOld Ops 18.67 14.7496 +565.28 +565.34 -0.06

MidwayGate 2 18.83 14.7562 +560.96 +561.03 --0.07

JohnsonIsland 20.77 16.8371 -214.09 -214.17 -0.06

A L F 24.Jul 61Bonham 18.80 18.7550 +120.90 +120.84 +0.06

FrenchFrigateShoals 21.88 18.8833 +246.16 +246.11 +0.05

Moloks i 29.Jul 61Airport 20.00 1 238050 +25.77 +25.71ý +0.03

Maui

KahuluiAirport 209-7 23.8375 -44.,25 -44.28 t0.03

Kamue laAirport 21.82 23,.8808 -100.86 -160.89 +0:.03

SHilo

Genera 1

LymanField 22.53 23.9104 -58.38 -58.42 +0.04

Kamue laAirport 23.20 23.9383 -160.82 -160,.86 +0,04

MauiKahului 30 Jul 61.Airport O0.00 23..9.717 -L4,4.27 -44.28 .+0.01

Moloka iAirport 00.67 23.9996 +25.71 *25.66 +0.05

Lihue 31 Jul 61Airport 20.08 25.8083 +103.914 +103.82 +0.12

K-i 1 Aug 61Bridge .20.12 26.8100 +73.30 +73.17 +0.13

Kalahqd

U.S.G.S.HM700 21.13 26.85.21 +43,.17 +413.06 +.0.11

PortAllenUSGSB 11"35" 22.17 26.895.4 +70.85 +70.77 +0.08

WaimeaUSGSBM "9" 23.13 26.9354 +87.,9 +87.44 +0.05

Bonham 23.98 26.9708 +12-0.98 +120.95 +0.03

Wa iaeaUSGS 2 Aug 61]M4 v9'- .00.43 26.9896 +87.4. +87.142 +0,.02

PortAllen

SUSGSBM "35" 01.20 27,.0217 +70.81 +70.81 +00.00

Ka lahed

USGSBM700 01.57 .0371 +43.23 +43.24 -0.01

K-iBridge 01.87 .0496 +.73.42 +73.43 -0.01

LihueAirportGate 1 02.28 .0667 +1014.06 +104.10 -0.04

Wai luaBridge 16.45 .6571 +127.41 +127.39 +0.02

KapasArmory 16.65 .6654 +124.39 +124.38 +0.01

KahalPointLightHouse 16.98 .6792 +116.29 +116.29 +0.00

KoolauSchool 17.38 .6958 +110.56 +110.57 -0.01

KilaueaTele.Ex69 17.65 .7071 +110.98 +110.99 -0.01

USGSBM17HanaleiBridge 18.05 .7238 +136.49 +136.52 -0.03

WainihaEMiI01PowerHouse 18.52 .74356 +139.66 +139.70 -0.04

KilaueaTeleExc. 19.55 .7863 +110.95 +111.01 -. 06

KapaaArmory 20.32 .8183 +124.38 +124.47 -0.09

Kokee109AO&W

Station 23.92 .9683 -166.07 -165.88 -0.19

Lihue 3 Aug 61,Airport 02.12 28.0600 .103.73 .103.97 .0.2L

'1

GRAVITY DIFFERENCE COMPARISON: LOOP VERSUS SINGLE DR.IFT RATEINSTRUMENT 617

Days from AG From A G From MGALStation Date and Hour First Obs Lv.pComps Single Drift Differences

PearlHarborBerth 6 Jul 61M-.3 01.60 0,0383 t4-88 +4.87 +0.01

LaysanIslandTop ofBeach 20.95 4.8446 +369.11 +369.15 -0.04

LaysanIslandTri' 12 Jul 61Sta. 02.83 6.0896 +368,46 +368.52 -0.06

LisiawskiIs

C&GSSta 21.20 6.8550 +421.67 +421.74 -0,07

LisiawskiIsTop ofBeach 21.33 6.8604 +422.86 +422.93 -0.07

SouthEastS IsPearl 13 Jul 61Hermu 23.83 7.9646 +510.25 +510.33 -0.08

MidwayUSN StaGate 2 14 Jul 61at Term 20.57 8.8288 +560.91 +560.99 -0.08

MidwayGate 2 03.08 13.1000 +561.01 +561.00 -0.01

KureIsland 22.42 13.9058 +606.02 +606.02 *-0.00

Midway 20 Jul 61Gate 2 .04.52 14.1600 +$61.O0 .561.02 *0.02

MidwayOld Ops 18.67 114,17496 .565.37 +565.37 +0.00

MidwayGate 2 18.83 114.7562 *-501.03 .5o61.02 ÷+0.01

Johnson 22Jul 61Island 20.77 16.83,71 -210..10 -211,25 .0,17

A.F.L. 24 Jul 61Bonham 18.80 18.7550 +120.87 +120.73 +0.14

FrenchFrigate 1

.Shoals 21.88 18.8883 .2146.01 +245.93 +0.08

Molokai 29 Jul 61Airport 20.00 23.8050 +25.70 ,25.75 -0.05

MauiKahului 29 Jul 61 -Airport 20.78 23.8375 -.J 5 -1.39 +0.014

KamuelaAirport 21.82 .23,8808 -160.47 -160.44 0.03

HiloGeneralLymanField 22.53 23.9.1014 -58.45 -58.44 -0.01

KamuelaAirport 23.20 23.9383 -1601.40 -160.040 -0.00

MauiKahului 30 Jul 61Airport 00.00 23.9.717 -"4.27 -414.28 +0.01

MolokaiAirport 00.67 23.9096 +25.76 +25.73 +0.03

Lihue 31 Jul 61Airport 20.08 25.8083 +103.84 +103.81 +0.03

K-1 1 Aug .61Bridge 20.12 .26.8100 +73.25 +73.20 +0.05

KalahedUSGS 34 700 *413.22 +43.22 0.00

K-1Bridge +73.32 +73.32 0.0

LihueAirportGate 1 +103.98 +103.95 +0.03

SWailua

Bridge t127.26 +127.29 -0.03

KapaaArmory +'124.28 t12k.30 -0.02

Kaha IPointLight

House +116.18 +116.19 -0.01

Koolau.8b:poa . +.110.142 +110.A42 -0.0

KileueaTele.Exc. +110.86 +110.87 -0.01

USGS BM17Hana leiBridge +136.36 +136.36 0.00

Wa inihaBM 101PowerHouse +139.62 +139.61

Kamue laTele.Exc. +110.88 .+110.85 +0..03

KapaaArmory +124-.37 +124.33 +0.04

Kokee 109AO&W Sta -165.714 -165.81 +0,10

LihueAirport +103.92 +103'478 +0.114

Hana leiBridgeUSGSPM "17" 18.05 .7238 +136.23 +136.20 +0.03

'WainihaPowerHouseBM 101 18.52 74•33 +139.56 +139.54• +0.02

KilaueaTele.Exc. 19.55 .7863 +110.75 +110.74 +0.01

KapaaArmory 20.32 .8183 +12L4.28 +124.27 +0.01

Kokee109 AG&WSta 23.92 .9683 -166.02 -165.59 -0.03

Lihue 3 Aug 61Airport 02.02 28.06Q0 t103.82 +103..87 -.0.05

MEAN GRAVITY PIFFERENCQ COMPARISON: LOOP VERSUS SINGLE DRIFT RATE1

MEAN SINGLE MEANPRIFTAG FOR LOOP AG FOR MCAL615 &. 617 615 & 617 DIF FERENWCXS

Hickam MATS 0.00 0,00 0,00I ~pearl

Harbor +4.81 +4.84 .-0.03

LaysanBeach +369.12 +369.10 +0.02

LaysanSHiran +368.48 +368.42 +0.06

Lis ianski

Hiran +42 1..78 t442 1. 70 +0o 08

Lis ianskiBeach +422.91 +422.83 40.08

Pearl FenresHira-. +510.36 +510.26 +0 o 110

MidwayGate 2 +561,06 +560,96 +010

MidwayGate 2 +561.00 +560,96 +0.04

1,land +606.12 +606.03 +0,09

Gate 2 +561.10 +561,00 +0,.10

MidwayOld Ops +565.36 +565.32 +0,04.

MidwayGate 2 +561.02 +561,00 +0,02

Johnsoni land -214.17 -214.10 --0.07

Bonham +120.78 +120.88 -0,10

FrenchFrigateShoalt +246.02 +246.08 -0,06

Moloka iAirport +25.74 +25,74 .0.00

MauiKahuluiAirport -.4434 -44.30 -0.044

Kamue laAirport -160.66 -160.66 0.00

HiloGeneralLymanField -58.43 -58.42 -01,01

Kamue laAirport -160.63 -160.61 -0*.02

MauiKahuluiAirport -44.26 -44.23 -0.03

MolukaiAirport +25.70 +25.74 -0..04

LihueAirport +103.82 +103.89 -0.07

K-1Bridge -72.18 +73.28 -0.10

KalahedUSGSW"t 700"t .+43.10 +43.17 -0.07

PortAllenUSGS EM 35 +70.69 +70.74 -.0.05

Waimea

USGS MM 9 +87.26 +87.28 -0.02

Bonham +120.89 +120.91 -0.02

WaiimeaUSGS BM 9 +87.26 +87.28 -0.02

PortAllenUSGS BM 35 +70.70 +70.70 0,.00

Kalahed 1 Aug 61EM "700" 21.13 26,8521 *43.17 +43.13 +0.04

PortAllenUSGSEM1"35" .22,17 26.8954 +70.44 .70.61 +0.03

WameeaUSGS "9" 23.13 26.9354 .+87.08 +87.06 +0.02

Bonham 23.98 26.9708 +120.84 +10.83 +0.01

WajimeaUSGS 2-Aug 61 26.9896 +87.11 +87.10 +0.01BM "9" .00..43

PortAllenUSGSBM t35" .01.20 27.0217 +70,.59 .70.59 -0.00

KalahedUSGSEM 700 01.57 .0371 +43.20 +43.21 -0.01

K-1Bridge 01.87 .0496 +73.22 +73.22 -0.00

LihueAirportGate 1 02.28 .0667 +103.814. *103,.85 -0.01

WailuaBridge 16.45 .6571 +127.17 +127.13 .0.04

K apsa

Armory .16.65 .6654 .+124.21 +124.17 +0.0.4

KahalPointLightHous e 16.98 .6792 +116.09 +110,.06 +0.03

KoolauShoal 17.38 .6958 +110.29 +110.25 +0.04

KilaueaTele.Ext. 17.65 .7071 +110.76 +110.73 10.03

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APPENDIX C

BASE STATION IfSCRIPTIONS

PRINCIPAL FACTS FOR IETAIL OBSERVATIONS

SURVEY STATION DESCMPTION

COUNTRY STATION DESIGNATION STATE OR PROVINCE

U, S. A. Bishop Museum Pendulum Hawaii Oaho IslandNEAREST CITY LATITUDE LON"ITUDC

0EC DETAILGravity Base - Hnolulj *"22 157 52.24

STATION ELEVATION FT/MTR PROSASLE ACCURACY

Unknown_SOURCE OF INFORMATION FOR:

LATITUDE & LONGITUDE ELEVATION DATUM

W. H. o. I. Ref. 60-26. Jui 1.60 1OBSERVED BY A/2c M-eyn MONTH &YEAR CHIEF OF TEAM

Lt. Schweninger August 1961 l/Lt. J. B. 8ch]Lenq erDESCRIPTION

Statio Is in room 2 on the ground floor bf the Administrationandj Research Annex (northeast annex beilding at the rear oft e museumb.The station is in the north corner of room 2 at floor level whigh is aboiut3 feet below the level of the gromu-d iumediately outside.

SKETCH

00

13M1 FoR 23 REPLACES PREVIOUS EDITION OF THIS FORM AND 1611 FORM 31

SURYAY STATION DESCRIPTION

SSTATION DOESIGNATION STATE .O PROVINCEUSA Hickam MATS Toe Hawaiian TFlgndn

NEARIST CITY i AT4TUO[ I LOMWVDIHonollu - 210 18.!9 --N 15§ OL.o'.5 5

STATION ELEVATION PT/iM* ESTIMATED ACCURACY.±

SOURCE OF INFORMATION FOR I

LATITUDE LONITUD Ref #60-26 ELVATIN. IATUWoods -ranhic Ing Same as PositoOBSERVED By MONTH & WlAN CUEF OF T;[ MLt Schweninger & A2C Mevn Aar 61 1/ Lt.a& B. F ehweninuerPEUCHIPTION

.Readings were taken beside customs door on field side of waiting room at theMATS Bale Terminal, . ........ .

SKETCH

1391 P 0.18 REPtACS tas I' ORM 33 WHICn WAY 6E USED

SURVEY STATION DESCRIPTION

COUNTRY STATION DESIGNATION STATE OR PROVINCEUSA Berth M-3 Hawaiian Islands

NEAREST CITY IATTUDE LONGITUDE

Pearl City 210 231 1. 2 41 1570 57 ' 2STATION ELEVATION FT/MTR ESTIMATED ACCURACY+

I ,10SOURCE OF INFORMATION FOR t

USC&GS Triangulation Diagram LVATION

OOSERVED mY MONTH A YEAR CHIEr F ' 'PAMA2C Meyn Au 61 Lt 3. B. Schweninger

"DESCRIPTION

SKETCH

1391 ronm 0.18 REPL-WCES 1381 FORM 23 WHICH MAY BE USED

SURVEY STATION DESCRIPTION

COUNTRY /STATION DESIGNATION TUSA Molokai Airport 1I taT f'f7LwaiiNEAREST CITY Lý{TUD¶ 9 ' g" I ' UO 06' W "Gravity Base I"',! KualapuuE06 W

STATION ELEVATION FT/Y'• ESTIMATED ACCURACY+441 1 vlus or minus 20

SOURCE OF INFORMATION FOR

LATITUDE & LONGITUDE Flight Information ELEVATION DATUM,Publications enroute surmplement I Same

OBSERVED BY A2C Meyn. MONTH & YEAR CHIEF OF TEAMI/t St-hwp I ýAu• 1961 1L+. ýnhweninqer6ESCRIPTION Observations were made on the asphalt surface on the fieid side of thefence at gate #2 of the Molokai Airport.

SKETCH

3 0O

1381 FORM o.18 REPLACES ,.o01 FORM 23 WHICH MAY BE USEDMAR 42'

SURVEY STATION DESCRIPTION"COUNTRY ATNTo O,,OSIGNATION a ATE OR PROVINCE

U S A Lanai Airmort ' Lanai Islanj HawaiiGravitý..Base C8T LL TNJUQJ4EO ITeUOENILanai City 20 5 8' 5• 7 "

STATION ELEVATION PT/ýA ESTIMATED ACCURACY +1315 plus or minus ft,

SOURCE OF INFORMATION FORLATTUiDE A LONGTUO9 .... . YATON OATUMFlt info pub enroute supplement Same

OBSERVED *YA2C Heyn MONTH & YEAR CHIEF OF TAMLt SchweningeI Aug 61 1 /Lt Schweninger

DESCRiPTION' Observations were made on the asphalt pavement in front of theHawaiian Airline terminal next to the fence and a concrete sidedlalk.

SKETCH

/R

/

1381 • 0-18 REPLACROItll t~PORW 23 WHICH MAY UIE USED•

SURVEY STATION DESCRIPTIONCOUNTRY STATION DESIGNATION STATE ON PROVINCE

USA .'Kahului Airport , Maui Island Hawaii

IILAAEST CITY LATITUDE LONGTUo0Gravity Base Kakului 2? 54' 15 26 w

STATION ELEVATION FT/Vr/ / ESTIMATED ACCURACY±

59 NPlus or Minus 20 FSOURCE OF INFORMATION FOR tLATITUDE A LONGITUDE Flight information ELEVATION DATUM

Publications Enroute-Supp lement I Same .OBERzVED By A•2C Meyn and MONTH & YEAR CHIEF OF TEAMIc+. T.- JT_ A .ah i .... Aug 61 Ist Lt.o.J. B. Schweninger

DESCRIPTION Observations were made on the concrete ramip next to a concrete wall

at Gate #5 and against the outside wall of the terminal building at Kahului Apt..

"SKETCH

0 0

-- m W

'1a.z 0..

( 0Q a:

U.

0o 4 I-

0

138 7RM. EP

1381 FORM 0.19 REPLACES 1ISS FORM 23 WHICH MAY BE USED

SURVEY STATION DESCRIPTION

COUNTRY -STATION DESIGNATION TEo

USA Flana Airpor't SIVUofals NC E i

NEAREST CITY LATITUDE IL56OJTw *"

rPaviy Rasp Hna. 2(? 48, "N156° 01'1 W .

STATION ELEVATION ETSTIMTED ACCURACY+77 Plus or Minus 20 Ft

SOURCE OF INFORMATION FOXLATITUDE A• LONGITUDE Flight Inf'ormatio 'uvATIoN AU

'•.••.•^....,,,Enrout aSuoole1ment EE Same •_ ..So~iSEv-KO QYA2C Veyn an MNH 6 YEAR CHIEF OF TEAM

"IT+ 4 " .h..•..A•. ,u 1/•tt hweninger0ESC-IPTION Observations were made on a concrete slab outside the field entrance

to the Rana terminal and to left of a wooden roof support as you face the termnin-I al.

SKETCH

"AIRCRAFT RAMP

WOODEN. PICKET FENCE GATE I

F._ ~ASPH AL.T

WOOD ROOF SUPPORT RJ "

COVERED CONCRETE PORCH

'1<ENTRANCE LOBBY

TERMINAL BLDG

I

IM

1381 ,o. 0-18 REPLACES IS~i FORM 23 WHICH MAY SES USEDI MRe

SURVEY STATION DESCRIPTION

COUNTRY "STATION DESIGNATION ISTATE OR PROVINCEUSA Bonham A. L. F. Hawaii Kauai Islanri

~T~v~vR~~eNEAREST CITY ONGN" IT9 IU 4 7S wQr'vi+tg ngse Mana IA2T;"0 02' N- 47 W"STATION ELEVATION FTI ' ESTIMATED ACCURACY±

14 1p"1lus or minus 10SOURCE OF INFORMATION FOR s

LATITUDE & LONGITUDE Flight Information ELEVATION DATUMEnroute Surpplement I SameOBSERVEO BY A2C Meyn MONTH & YEAR ICNEr OF TEAM

S/T Schweninyer AuAn 61 I lLt SchweninzerOE66MTION Obsertations were made on the concrete sidewalk on the south side of

-the flight operations at Bonham Auxilary landing Field. The field, is oer rate"dby the Navy.

SKETCH

z

,0, .

0

I-I-

0 0

-J

ICL

MI

L.0

aG.

1381 r.Tqt. fl.tR REPLACES 13181 FORM 23 WHICH MAY BE USED

SURVEY STATION DESCRIPTIONSCOUNTRY TATION DESIGNATION IS TATE OR PROVINCENTSA Lihue ?kirport Kauai Isl.nd Hawaii

Gravity Base N Ue:"T I •, N I OE21' I L2

STATION ELEVATION FTr f ESTIMATED ACCURACY+

148 Plus or Minus 20SOURCE OF INFORMATION FOR S

LATITUDE A LONGITUDEllight Information ELEVATION jDATUM

Publications enroute SuDivLement Same ,OBSERVED my MONTH A YEAR CNIEP OF TEAM

/Lt SchweOAiyn and Auz 1961 ILz t chi~ningerDESCRIPTION Obsrvations were mnde inside the ongrn e against the brick wall at

Gatd #i of the Lihue Municipal Airport.

SKETCH

/*q.e

+ '

/A./

4L

CI q.

1381 FORM 0.18 REPLACES 1361 FORM 23 WHICH MAY BE USED

SURVEY STATION DESCRIPTION

COUNTRY 'STATION DESIGNATION STAT9 OR PROVINCEU. S. A. Upolu Point Airport Hawaii Island of Hawaii

NEAREST aCIT LTTO OGT

STATION ELEVATION FT/O/ P( ESTIMATED ACCURACY± 2

SOURCE OF INFORMATION FOR iLATITUDE & LONGITUDE " ELEVATION DATUM

USAF F3l*I -htI -nomto Fibiction IEnroute ýu~nlenent

OBSERVED mY A20 Meyn MONTH & YEAR CHIEF OF TEAM

DESCRIPTION

-. " Observations were made at the Upolu Point Airport terminalbuilding on the conc. sidewalk next to the chain link fence of the baggageclaim at gate 2. This is. an open area covered ey a rooý.

SKETCH

AIRCRAFT RAMP

GATE 17 (GATE 2

BAG. 013 BAG. B AG,LAIN HEAE [ CLAIM CLAIM

CONC,

CONC. i I ' "I I I

QUONSET BLDG.

(Terminal)

1381 FMOR 0-18 REPLACES 1311 FORM 21 WHICH MAY li USED

SURVEY STATION DESCRIPTION

COUNTRY .TATON D.SIGNATION STE R. PROV1MCEUSA Kona Airport s a...... Island of Hawaii

NEAREST CITY ILATITUDE I* LONGITUDE

Gravity Base Kailua 1190 39 N " 156o 01' W "STATIC g ELEVATION PTO# ESTIMATED ACCURACY +

SPlus or Min= rb FtSOURCE OF INPORMATION FORI

LATITUDE A LONGITUoE Flight Information ELEVATION DATUMPibl•eations Entu+fe SloplemA.1 I SanmeOSERVED BY .,2C 14eyn and 1st MONTH & YEAR CHIEF OF 'TEAMTt. J-_R B..9hwaninip'r Arn' A•i e, Iaf T.T - _ A - ,1; r•n

DESCRIPTION Observations were made on the asohalt floor next to a stone aillaropposite Gate #1. The station is under the corner of a overhanging roof.

SKETCH

* G¢•" .- \\

cp-V

1381 FORM 0.18 REPLACCES 1118 PORM 23 WHICH MAY SE USEDMAR 62S

SURVEY STATIOH DESCRIPTIONCOUNTRY STATION JDESIGNATION STATE OR PROVINCE

USA Kamuela Airport Hawaii Island of Haw i

Gravity Base Waimea 200o 011 N"O 41' W"

STATION ELEVATION T/• ESTIMATED CUAY

S2691 - I Plus or Minus-50 Ft

SOURCE OF INFORMATION FOR t

LATITUDE A LONGITUDE Plight Info rmration ELEVATION DATUMPublication Enroute Supplement I Same

OBSERVED mY A2C Meyn and MONTH & YEAR CHIEF OF TEAM

1 ±t .S~hy-ji-ni 1g- I - Aug 61 1I lLt as, A. Shweni.ngarDESCRIPTION Observations were made on the concrete floor which extends 8 inchesbeyond the sliding doors at the side of the waiting room at the corner of theBuilding near the door to Gate #i. The station is under a overhanging .roof.

SKETCH

P's

1381

1381 FORM 0.18 REPLACES 1361 FORM 23 WHICH MAY BE USED

SURVEY STATIO1 OESCRIPTION

COUNTRY STATION DESIGNATION STATE OR PROVINCEUSA General Lyman Field Hawaii

NEAREST CITY T . ,ITUDE. .Gravity Base Hilo lio 0L4iI 1 I 3 TVOUO04 W

STATION ELEVATION FTA"r 34 ESTIMATED ACCURACY+10

SOURCE OF INFORMATION FOR I

LATITUDE A LONGITUDE Fnroute Supplement I ELEVATION' DATUMFlight Information Publication I Enroute Supplement

OaSERVED sY lt Lt Schweningej MONTH & YEAR CHIEF OF TEAM& A20 Meyn I Aug 1961 1st Lt J. B.. Schweninger

DESCRIPTION Observations were made on the concrete floor 6utside the terminal

building'next to the door opposite Gate 4, The site is under a overhanging roof.

SKETCH

4b4

A.

A.

1381 Fonm .0.18 REPLACES 1351 FORM 2) WHICH MAY 09 USED

SURV•Y SYATION DESCIRIPTIONCOUNTRY US ST..-ATION D,.SIGNATION STATIK on PRVNvCE ....SI USALasa•n Island I.. Hawaiian I92slad

f] REFERENCE &] DETAIL NEARES 46 1171o 45N 0 UD

STATION ELEVATION FT/ilW PROBlABLE ACCURACY

26' - 9f" ±- 5 0SOURCE OF IN.ORMATION FOR,

LATITUDE &LONGITUDE .L.VATIONHand Jelin__DATUMUSO&QS Chart #4186 lusing mean tide at 2 140 OCT on 10 Jul 61

OBSERVED BY MONTH AV EAR 01CEF or TEA

Lt Schweninger & A/2C Meyn July 1961 I!Lt J .B Schweni, erDESCRIPTION Observations were made at the USC&GS trianglation stationstamped"L-AYS1961" * The station is appro-fIfate- - 2 -st of the'west beach. Anobservation was also macdie the top of the west beach approximately 40' fromth~e waters US~ VV 7 Wil~dlife, refu e sign. The elevation here is

SKETCH

PACIFIC OCEAN

oII2

BEACH SALTSITE LK

PACIFIC OCEAN

0 12I !

NAUTICAL MILES

1381 rORM 23 REPLACES FREVIOUS EDITION OF THIS FORM AND 13S1 FORM S3

SUVaY STATION DESCIRIPTiOi4

COUNTRY STATION DESIGNATIONF STATE OR PROVINCE

US AI Lisianski Island I Hawaiian . slandsNEAREST CITY LATITUDE LONGITUDE

REFEHENCE [] DETAIL -6 . 04 t3STATION ELEVATION FT/rRW P-RO8-LEACCURA 9 Y

SOURCE OF INFORMATION FOR:

LATrrUOE A LONGITUDE ELEVATION[Jand levelind DATUM

USc&OS Chart #4186 lusing mean tide at ".,0 GCT on 12 Jul 61OOSERVEO BY C [MONTH &YEAR CHIEF OF TEAM

Lt Schweninger & I2C Men ' July 1961J liLt .,_, R4ShwgningeroESCRIPTION Observations were made at the USCMS trianglation station -s d

"Lisianski 1". The station is approximately 400' east-of the west bach.An observation was also made at the top of the west beach apyroximatejl 30'

from the waters edge next to a US Wildlife' refugi n. The elevation here is

SKETCH

PACIFIC; OCEAN

HIRANI ITEx

SEA H.SIlTE

PACIFIC OCEAN

0 I 2I |

NAUTICAL MILES

1381 FOM 23 REPLACES FREVIOUS EDITION OF THIS FORM AND 1561 FORM It

SU."Y.Y STATIOG DESCIIPT1I14

COUNTRY STATION DESIGNATION STATE OR PROVINCEU. S. A. Pearl and Hermes Roef Hawaiian Islands

[R Fr. iDETAIL NEAREST CITY LATITUDE LONGITUDE127° a 46 170STATION ELEVATION FT/*0W PROW'A•LE ACCURACY

5' - 6" + 2'SOURCE OF INFORMATION FOR:

LATITUDE & LONGITUDE ELEVATION Haedvei DATUMUSC&GS Chart #4175 sing mean tide at 00 5 OCT on 14 Jul 61ODSERVED aY MONTH & YEAR CHIEF OF VfAMLt Schweninger and A/20 Meyn Jul 61 l/Lt SOliweningerDESCRIPTION Observations were made at a USC&GS trianqulation mark stamped"PEARL 1961". 'The station is approximately 200' N.W. of the S.E. beach ofSoutheaut Island of Pearl and Hermes Reef.

SKETCH

PACIFIC OCEAN

200' FROM BEACH

PACIFIC OCEAN

0 1/2o /

NAUTICAL MILES

1381 FOR" 23 M4P..Ct -ES E-Y$G. EOITION Of THIS FORM AND 1361 FORM 3tM'ARt 4

SURVEY STATION DESCRIPTIONCOUNTRY USA STATION DESIGNATION STATE OR PROVINCE

French Frigate Shoals HI iawaiian IslandsGravity Base NEAREST CITY LATITUDE N" I UI!

ISTATION ELEMATION PT/F+ ESTIMATED ACCURACY +Ft Plus or Minis 2 Ft

SOURCE OF INFORMATION FOR I

LATITUDE 6 LONGITUDE Flisht Inforration .LEVATION 'DATUMPublication Enroute oupp emen t Same

OBSERVED BY A2C Meyn and MONTH & YEAR CHIEF OF TKAMlst Lt. J_ B. Snhweninger Jul 61 Ist LU J. B. S.hweningierDESCRIPTION Observations were made at the US Coast Guard Laran Station, Tern

Islhnd, French Frigate Shoals, on the concrete sidewalk next to the coral run-way in front of the northeast corner of the barracks building.

SKETCH

1381 ,oR. 0.18 REPLACES 1361 FORM 23 WHICH MAY BE USED

SURVEY STATION DESCRIPTION

COUNTRY 4TATION DESIGNATION STATE OR PROVINCEUSA Johnston Island USANE.AREST CITY, L"" LO)IITU°,

Gravity Base NEARET CIT169 o 31 N ' W#STATION ELEVATION FT/ ESTIMATED ACCURACY±

7 Plus or Minus 2 FtSOURCE Of INFORMATION FOR I"LATITrUOE A LONGITUO'r Flight Informto AYI.vVoNAU

Publication Enroute Suopalement rmto LVSame T ý" "oSERVED By A C M a n l t . N H • Y A CHIEF OF TEAM

,,T t, J. B. S h en h r I u I1 ist Lt. .J. B. SchweningirDEscRieT°Obse~rvations were made at Dr. Woollards station in front 6f the MATS

terminal building on the concrete walk 12 feet to the left of the entrance doorto the terminal lobby.

SKETCH

%p*

44p

1014

( , . ,-o,4-

1381 rO.m 0.18 REPLACES 13S1 FORM 23 WHICH MAY BE USED

SURVEY STATION DESCRIPTION

COUNTRY STATION 0EIGNATION STATE OR PROINCEUSA Midway Gate #2 Hawaiian IslInds

MEARNST CITY LTOL4U0[Gravity Base iCit.• I sYand L UO±2, N" L J 23' W"

STATION ELEVATION FTT/e ESTIMATE0 ACCURACY+

131 Plus or Minus 5 FtSOURCE OF INFORMATION FOR I

LATITUDE A LONGITUDEFlight Information ELEVATION DATUM

OOSERVED GYA2C Ivsyn and MONTH A YEAR CHIEF OF TEAM1iLt, Snlhwaninfa , 1111 61 1 t1 t J. B. Schweninger

DESCRIPTION Observations were made on the concrete sidewralk next to Gate #2 at

the Naval Air Terminal, Sand Island, Midway. The station is to the left of Gate#2 as you face the aircraft ramp.

SKETCH

0.-

0~0

40 uI 0

1381 frONm 0.18 RE PLACES 1241 FORM 23 WHIICH MAY 89 USED

SURVZY STATIO14 DESCI•IPTtOIO

COUNTRY "ST ATION DESIGNATION STATE OR PROVINCE

,JIS A... _ idway Old Operations iLd Hawailan TslandRNEAREST CITY LATITUO1 LONGITUD"

EJREFEReNCE LTDETAIL Midway Isl2.ld 128' ,,STATION ELEVATION FT/l-•-J PAOAL9 ACCURACY

SOURCE OF INFORMATION FOR:

LATITUDE &LONGITUDE KLAVATION 1 DATUM

Base Operations _____ _Ba _ pmer0 ' ...OBSERVED BY A" MONTH &TEAR - CUIEf Of TIAM

Lt Schweninaer & A/2C Mevn| July 1961 | I/Lt ., B Schwe-ningerDESCRIPTION Observations were made at Dr. Woollard's Station at the base 9S theconcrete steps _leagdinto the old base •perations buildinz at the Naw Aiy _ i

Station- on Sand Island, M-dwav. This buildin- is now the commn-aications center,

SKETCH

OUTSIDE STAIRWAY

SECOUND FLOOR

BLDG. 521-- • TREES

"BRUSHTWO STOR-Y CONCRETE BLOCK HOUSE

COMMUNICATIONS CENTER

(OLD OPS. BLDG.) xx

CONCS.... •, WALK

PASSAGEWAY TOCOMM. CENTER

AIRCRAFT RAMP

1381 M 23 REPLACES mEVIOUS .O|I'ION OF THIS FORM AND 1301 FORM 31

SURVEY STATION DESCRIPTIONCOU Y STATION DESIGNATION ST OR PROVINCFC YKure Island iian islands

NEAREST CITY jATITUD1 t Ol DE WGravity Base ... ,,283.5 N", y%1 18

STATION ELEVATION FT/ / ESTIMATED ACCURACY +7 Plus or Minus 3 Ft

SOURCE OF INFORMATION FOR I

LATITUDE & LONGITUDE Flight Information ELEVATION DATUMPublication Enroute Supplement Same A

OBSERVED my A2C Meyn and MONTH & YEAR CHIFF OF TWAM1st Lt. J. B. Snhweninger I Jul 61 1st iLt J, B.. Schweninger

DESCRIPTION Observations were made on the concrete floor to the left of theoffice

door of the US Coast Guard Lor--n Station on Kure Is-and. The office is at the

north end of the barracks building.

SKETCH

co

1361 0.m 0-18 REPLACES 1381 FORM 23 WHICH MAY BE USED

PRINCIPAL FACTS FOR DETAIL OBSERVATIONS

COUNTRY USA- Hawaiian Islands

NAME OF GRAVITY BASE VALUE OF GRAVITY BASEHickam MATS Terminal, Oahu 978,933.7

CLASSIFICATIO1N OF OBS. TYPE ELEVATION iYEAR OF 0BSERVATIONDetail I Spirit Leveling 196r

ACCWRCY OZ OBSERVATIONSt _ INSTRUMENT.mga-s8 Worden Master, 615 and 617

OBSERVERLt J. B. Schweniner and A2C Meyn

ESTIMATED MEAN

STATION LATITUDE. LONGITUDE ELEV. ACCURACY' OBSERVED GNAME OR NO. 0 _ __ FT/X +. MGAL

Keaau 19 38 155 02 328.12 1.0 978,858.9Pahoa 19 30 154 57 7 _ _ 51__ -_

Kalapana 19 22 154, 58 10.81 867.0

Fohoiki 19 27 1..5 45 37.10 .872.2

Pahala 19 12 155 28 103__.. 798.6

Hilea 19 08 .55 32 302.41. 846.4

Naalehu 19 03 .. 5 36 673.86 817.2

Kealakekua 19 39 136 01 1371.75 773.9

Puuanahulu 19 48 155 51 2136 714.9

Auwaiakeakua Bridge 19 52 155 43 2522 722_. 9

Wajkij-• L 55 39 4732 601.0

19 155 07 2120.07 757.6

Volcano House 19 26 155 16 3972.54 671.2

Hwy 11 USGS BM 3640 19 25 155 19 3640 1.0 688.4

REMARKS

1381 R°•62 0-32 *Relative to Gravity Base Stations

PRINCIPAL FACTS FOR DEI'AIL OBSERVATIONS

COUNTRY USA - Hawaiian Islands

NA1E OF GRAVITY BASE VALUE OF GRAVITY BASEHickam MATS Terminal, Oahu 978,933.7

CLASSIFICATION OF OBS. TYPE ELEVATION | YEAR OF OBSERVATIONDetail Spirit Levelin 1961

ACCURACY OF OBSERVATIONS* INSTRU ENT %*O.5 mgals Worden 1I-4star, 615 and 617

OBSERVERLt J. B. Schweninger and A2C Meyn

ESTIMATED MEANSTATION LATITUDE, LONGITUDE ELEV. ACCURACY OBSERVED G

NAME OR NO. o ,I FT/___ MGALMakawao USGS BM 20 51.5 156 19 1638.73 1.0O' 978,811.0Upper Paia USC&GS BM 20 54 156 22 165.54 884.5Kihei USC&G 3M 20 47 156 28 7.46 896.2Haleakala Uia ter 20 44.5 156 14 9324.81 299.4

Ion oero.e 20 42.5 356 15.5 LO01M20 228.0K-I Bridge _21 57 --- 9 28.1 641.24 979 007.0Kalahed USGS BM 700 21 55]5 31.8 70013 8 955.5 -1. 75.3 .. 978,976.9Port Allen USGS BM 35 2 54 35_.3 3-5.2_ _ 9900Waimea USGS BM 9 21 57.4 159 40.4 9.09 021.0hilcua Bridge 22 02.,6 1.59 20.3 16.80 0M1i0x..0..

Kapaa Amory 22 5 159 29 6.72 058.0Kahal Point Light House 21 08.8 159 18 24,42 049.9

Koolau School 22 11.7 159 21 320 044.2Kilauea Tele. Exchange 22 12.2 159 24.6' 320 044-.6Hanalei Bridge BM 17 22" 12.7 159 28.8 17.03 070.0Wainiha Power Hse BM]OI 22 11.8 159 33.5 100.29 073.4Kokee 109 AC&W Sta 22 09 159 38.5 4270 1 978,767.8

wK 19 S. of Pekee-o- 19 50 155 06 461.80 868.6'Nanue Bridge _19 56 155 09 212.09 900.6Kilau Bridge 59 155 14 439.30 884.6Wapunahina Bridge _.u 03 155 23 692.68 " 877.4

Honokaa 20 05 155 28 1113.87 857.0Kukuihaele 20 08 155 34 730.06 883.8Waimea 20 03 155 45 3160.99 740.8Manukona Landing,_ 20 11 1.55 59 1.1.33 870.0Halawa 20 13 155 42 263.68 885.1Makahuna Bridge 20 03 155 50 19.85 T. 896.2

1381 1eb 62 0-32 *Relative to Gravity Base Stations

PRINCIPAL FACTS FOR DETAIL OBSERVATIONS

COUNTRY USA- Hawaiian Islands

NAME OF G•AVITY BASE VALUE OF GRAVITY BASE~Hi ckam MATS Terminal, Oahu ý7,5.

CLASSIFICATION OF OBS. TYPE ELEVATION YEAR OF eBSERVATIONDetail LSpiritLevelir4g 19

ACCURACY OF OBSERVATIONS* INSTRUMENT*0.5 mgals, Worden •4sstvr• 615 and 617

OBSERVERLt J. B. Schweninger and A2C Meyn

ESTIMATED MEANSTATION LATITUDE, LONGITUDE ELEV. ACCURACY OBSERVED G

NAM.'E OR NO. . FT/ MGAL

Kualapuu BM 878 21 02 157 09 877.92 1.0 978,916.4Kalaupapa Lookout TBM 21 10.5 157 00 161.3.5 _ 852.5

Kaunakakai USGS BM 21 05.5 157 01.5 4.83 958.9

High y 45 Bridge 156 57 10.18 950.3

Kanalo USGS BM 39 21 03.5 156. 52 39 949.7

Pukoo Fish Pond BM 2 21 04.5 156 48 7 953.2

Kanaha Pt USGS BM 48 21 076 44.5 /8.82 _55.

Halawa USGS BM 25 21 09.5_ 15 44._ 25.97 )62.8

Puu Nana Reservoir BM 21 09 157 10 1380.95 898.2

MaunaLoa USGS BM 1102 21 07.5 157 13 1102.53 _901.

Waieli Trian.Sta. 21 06.5 157 14.5 631 927.8_

Kaeo Trian. Sta. 21 13 157 14 584. 919.0Kahakuloa USGS BM 21 00 156 33.5 203.39 896.o

Honokowai Hwy 30 2 0 57 156 41.5 19.0 ___0-

Lahaina USGS BM 20 52.5 156 4. 7.57 .._897.8

Olowalu Bridge l 20 49 156 38 25.32 897.6Intersec. Hwy 30 & 31 20 50. 156 32 16- 886.4

Wailuku Court House 20 53 156 30.5 331.06 882.4H3wy7 Makena Jct Hwy3l 20 540 16 24 - 1804.88 778.6Kepuni Bridge 20 37.5 156 15.5 884 840.6

PuuManeoneo Trian.Sta. 20 38 156 10.3 3.56 - 71

Kipahulu USGS BM192 20 , . 899 . •..Muolea USGS BM "JY5. •0 Z V+..- i56 bii.5 54:8 _-96'5_.__

K~Wi~~tak' 40Z 16 0 127 .81 __ 845.0Nahiku USGS BM 44-M-19'3 20 48.5 156 06 927.96 872.2

Kailua USGS BM M-11-19,3 20 54 156 13.5 658.94 r 869.6Haiku USGS BM 20 .. 55 156 19.5 512.45 1.0 877.6

REMAR[KS

1381 -Foam131Feb 62 0-32 "Relative to Gravity Base Stations