car97.dmaspot - geodesy · range: -54 em (west gulf) to +44 em (east of bahamas) regional...
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-88.0 30.0
car97.dmaspot.bln
-72.0 - 56.0 30.0
7. 0 -1--....--...--.-r-._--..=:.....---.---.---~...---,.---r---.-~-r--r--.---r----~-.--...---.--.,.---.---.--...,..-,...-+. 7. 0 -88.0 -72.0 -56.0
Longitude
('O.ri 7. r1JSi:'c-f1-1 "' , '?
-f/ tJ G-5> he_;{ J,'"'?J (
Q)
"C ::J -tJ
-tJ
tO ....1
FFT TC > 22 (S 49) ; Can. TC > 30 (N 49)
-130.0 -98.0 -66.0
53.0 53.0
+ + + + + +
+ +
+ + ~ + + + + + + + + * t +\ + +
+
\+ l + • +
•• + /+++ +t +
•" ,·\ ++ \
24.0~~~~~~~~~~~~-~~~~,·~-~~~~~~~~~~~~~~·~~-r~~~ 24.0 -66 .0 -130.0 -98.0
Longitude "---------------------------·- ·----------__..1
T·f- rr; Tel:. h c, v-P Fn-.. ),~ ref I. c.. c c, /7~~1 Ar;yx. ( 3c·f) Tcls ,._j
2"'" / ~ br ~c;
..--t;J 1110 (_ L, 11Atja6 q_s ...._
~t1 uP S~cvfd ~ /?0 d ( -./k t-f*'Y( Ce hRI~~VJ Tc/ .. ).~ S' 0 t 'f 7° Iff
7 q_ TC >3o 1'/ I C..C70 cl-c .. .,
0 (_) "'J"6 lr lz~o (0~-'lU...-v<:. h~ crl C1'1 e_r hs~c, ~. ~T Tc:~
{(r-t' Jo~'"'f Cvr...1r-Yt ·4u;'1 8 1417q4 ~our 7 / ~
West to East Geoid Tilts across North America -G96SSS minus EGM96 (Bouguer eon·eeted) Undulations:
24 to 53 N: + 30 em
42 to 53 N : + 31 em G96SSS minus ITRF94/NAVD88 (GPS/Benehmark) Undulations:
24 to 53 N: + 1 em 42 to 53 N: + 0 em
G96SSS trlinus GSD95 Undulations: 42 to 53 N: +125 em
(vx 8. b)
/ttt~ ~ - Q .ss-z fVIRi<-? ( FLA)
M(J-1.; + z, I 9'~ ~-kr.s ( Ro~e.s)
RIR/D
• •• • • • • p : ..
• • • . ·. . . . ~ . . : \ I I # '
• • • t
• • • • I ~: \
' : : REMOVE MASSES (M) ! . . . • •
· --~~-~~~~--............... -!.. _ ____ G
p
• G
RESTORE COND. MASS (C)
DOWNWARD CONTINUE
:Po --4·------- ·--G
R/0/R
• •• . . . . • • • • • • .·. . . : ~. .. . . '
p
. . , . .. • • t . . . '
I ~~· \, I ' 0
; REMOVE MASSES (M) : I I
G
0/R/R
--~~~~~~~~G
9(3) =g p p
- -------------------
I I
! • ·-~~~~~~22~~-,. • • • • • ..--·-• --·-----' --- G • · ,.,- G
AM ~ ~~ - p +0(.;
~----- - - --- - - ------
. P,P0 r-------------------
--
• • • . • DOWNWARD • CONTINUE I I I I I
-~ ····-·
-AM DC(I) p+ PP.
'0
Po
G
• -- G
RESTORE COND. MASS (C)
• .. • • • • • • • • • • .· ...... • • • • • • • • • • • •
• • • • • • • • I •• •
•• • ~ ' • • • ' REMOVE MASSES (M) : I I
-~ I
i I . ~ -----------· . · ·' G
_{I,M) M +DC -A
P,P0 Po
Po • G
RESTORE COND. MASS (C)
--
.-, 1rJ d1] "M I r l~d ~te/tt,j cl Co'1 elf~-~ ( crflJ-, '' ~ pr/fhcr.y we..-;~ ;_; )~,.- f ~<
R luff< y, f/ JJ '(;"' 1-flc., o fh-s-1- ])c 3 ra. J t'r' "1 f
(h...- '1) ( c ) /V\{.)Ct "7 •
.I VI .f<,--/1~ I 111tt.JS-e.f (;;._:d'c/..P ;t(!l~'oltl)
Cu"' ~;zf<"'d Crv~fc. I HtUI~.>
/11qJ.k.> (~ ? ... ll lo §.,.-h.C( ( c r ... ~;k; I)
(centered) G96SSS residuals wrt ITRF94/NAV088 GPS/Level Benchmarks
0.4
0.2
o+-J
...c 0\
0.0 Q)
I :f~ -o + ·- ~+ 0 -0.2 Q)
0 1. + • 0
* ::J - 0.4 -o + (/) + Q)
0:::
- 0.6
25 30 35 40 45 50 Latitude (Degrees)
Q) "0 :J ...... ·-...... a:s _J
FFT TC > 22 (S 51) ; Can. TC > 22 (N 51)
-130.0 -98.0 -66.0
53.0 53.0
+ + + + + +
+ +
+ + ~ +
.: \+
+
++
~g
~ . . 24,0 +-r-r-T- r-T.....,.--r-r-r.,.-r""T"""r,-,--r-r-,-1-+r-M-.....,··-r-·1··-r-r.,.-r-+r-,.-·r-..,...,....-,--,-·.-.--r-r-·.....--r-T"""-r--r-r·, -·r-fl, ..,..~•....-r-·•--r-..-.-..-r--l- 24.0
-66.0 - 130.0 -98.0
Longitude
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P-N w,
j 2 0 I'VljCJ 0
( ~1-J.._s :t ?f)
f I • . • f_.M5 Cav.l• ''5
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(!..,/.4.._ /:Ja,.,..,,~,..- Sh-4.d
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ft;a t1"" lt )
Mt-f.,lco 9 7
" T: 0. "'7 .-u~ '""Y £..c.> (VI ' .., •·j
- j~o If I h ,, S:ynfv..:r 2
:t IO (J,e}Jr... ± _')
- kif f(c.!)e · - 32. Myq/_; ( Gv~rkM G (~J
+ 57 t'Y?J~J> ( ( vb~)
-88.0 30.0
-88.0
car97·.ngsboth.bin
··72.0
-72.0
Longitude
-56.0 30.0
7.0 -56.0
(~ur97. d~-~_~p.:l· b,..,
'f 1\/Gs hdc.l'~Jl ,t ;Jtl,(A rt_l#'if.,t·& f?VCtl- cfcth1
rr·l~ fo (u.n ~ 17 ~ t/~ o3 2- fA
Q)
"C ::s ..... ..... «S
...J
-88.0 30.0
car97 .all. bin
-72.0 -56.0 30.0
7.0~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-+ 7.0 -56.0 -88.0
"
-72.0
Longitude
\..JA. rL{ I. Cj II, fO,...,
~ Cc;w,h,...;,c/ t{&.> /r/1/Jfft j.,<:;(,/,"'.t.s g'orr~ 1:1/rJ (!G'.,...,hq7
G 26, ez; fn.
I Dq - CJ~ r..~ 7 L[ ___ J_s_~_7._,_z ________ __
) <;I 't--- f-oo I u/V
(>s )) t-o,~,,,~, l
----------=-----... -
- 6a Jj{:M)
sc }(M
200 rYt
c:Ji(s ho re_ I I
Jsrr ' r--)
ec r I vv (! i I(: (I ( { jq \ 0 ·I I ('
;.. I t/1 /
1 I J' ( ( { ,-- , I j f ;, ·
J /
/ 1 ( l'/ /
I I'
/ } ( 1 r t I) ~
, , . I \ (' '/ ' c· J ( -j t / I
-
- (de(> f: 20 c~ ----
Cr .VI L( l iII f (I ; ) j( ! - J '
------------ e e,,( f(c:,"ft. ~ - SLf r,.,., ( W~> f- G~.-1 I)
-f yy c~o-t { Er.sf ol- ~l-ac;.,..,>)
- ~fc·pes. ~ T,:. 1-u ( (} .' u I I f(,.,
FL MN . fv ().o_)
f:::' c 0" ~ j- c z8 cv (o-. ..5+- G .,/fa
s ~- 7,2. G. e ot-J \{j, 6P.s. (3;11~ ;
j(;V15 C-3o 0, z.s- c (cC..f
Geoid Differences -- SS7 .2 vs. KMS Altimetry
Range: -54 em (west Gulf) to +44 em (east of Bahamas)
Regional differences: TX to CA 0.11 ppm FL to MN 0.05 ppm E coast 0.28 ppm W coast 0.16 ppm
Compare against GPS Benchmarks (units of ppm)
TX to CA FL to MN E coast W coast ss 7.2 0.35 0.23 0.88 0.60 KMS 0.30 0.25 0.64 0.49
;,
oN~ D71!D Level j_ ' __ -v""" ___ __ USGS 8
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NvJ
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1) ;V•'"t, E~ ; 5' CQ./1;, d<W ~ ct.,~ 1 e><"t' .._ sl•f"? o" -fh.r So.A4 ed;ys
z) (f.,-/y.. I 3/o ds : ".!. 2 0 ""'!<~ h > "ff /;~J Av+// . fV..t-kr-s a.dckJ (,Y! cc.r~r:lly) fc Lc,4; ~w/ c../..h-- 'D?O,t'VI t'..,.S.fo.llP(.)
.1'\...J 0 JYI..f./lf ~K./~YV•d 011
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C c)ur 5 .r ± ZO fY'~-k?
Trv~ e~~ .' - i8}{ M.e.k~ -j-L/87 ~Q
('j.=C·I'>M; o--+z7r-)
- ~ - ___ ..
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