modis and viirs vegetation indices and validation · 2015. 12. 17. · modis and viirs vegetation...

MODIS and VIIRS Vegetation Indices and Validation

Tomoaki Miura Dept. Natural Resources & Environmental Management University of Hawaii at Manoa

7-9 November 2011

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NASA LCLUC Meeting, Hanoi, Vietnam

Contributions from: Alfredo Huete, University of Arizona / University of Technology, Sydney NPP User’s Workshop, IGRASS 2011, Vancouver, Canada Fourth Global Vegetation Workshop, Montana, USA

NPP: Oct 28, 2011 at 5:48am EDT •! The National Polar-orbiting

Operational Environmental Satellite System (NPOESS) Preparatory Project (NPP)

•! Five instruments onboard: !! VIIRS !! CERES !! CrIS !! ATMS !! OMPS

•! Replacing the NOAA-19 satellite in the afternoon orbit for improved operational forecasting & monitoring

•! Extending the global environmental observations collected by the Terra, Aqua, and other satellites over the last dozen years

7-9 November 2011


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Liftoff of the NPP aboard a Delta II rocket at Space Launch Complex-2 at Vandenberg Air Force Base in Calif. Photo credit: NASA/Bill Ingalls (Source: http://jointmission.gsfc.nasa.gov/)

7-9 November 2011


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(Source: Goldberg et al., 2011, NPP User’s Workshop, IGRASS 2011)

Visible Infrared Imaging Radiometer Suite (VIIRS) VIIRS (NPP) MODIS (Aqua)

•! Altitude: 824 km, 14 orbits/day •! Overpass time: 1:30pm •! Swath width: ±56°, 3,000 km •! Global coverage: daily •! Spectral: 22 bands •! Spatial: 371 m, 742 m

•! Altitude: 705 km, 16 orbits/day •! Overpass time: 1:30pm •! Swath width: ±55°, 2,330 km •! Global coverage: 1-2 days •! Spectral: 36 bands •! Spatial: 250 m, 500 m, 1,000 m

7-9 November 2011

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Band # !! !! Band ID 1 620 - 670 600 - 680 I-1 2 841 - 876 845 - 885 I-2 3 459 - 479 4 545 - 565 5 1230 - 1250 1230 - 1250 M-8

1580 - 1670 M-10 1580 - 1610 I-3

7 2105 - 2155 2225 D 2275 M-11 8 405 - 420 402-422 M-1 9 438 - 448 436-454 M-2

10 483 - 493 478-498 M-3 11 526 - 536 12 546 - 556 545-565 M-4 13 662 - 672 662-682 M-5 14 673 - 683 15 743 - 753 739-754 M-6 16 862 - 877 846-885 M-7 17 890 - 920 18 931 - 941 19 915 - 965

6 1628 - 1652

MODIS VIIRS

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Comparison of MODIS & VIIRS Bands

Band # !! !! Band ID 3.610 D 3.790 M-12 3.550 D 3.930 I-4 21 3.929 - 3.989 22 3.940 D 4.001 23 4.020 - 4.080 3.973 D 4.128 M-13

24 4.433 D 4.498 25 4.482 D 4.549

26 1.360 - 1.390 M-9 27 6.535 - 6.895 28 7.175 - 7.475 29 8.400 - 8.700 8.400 D 8.700 M-14 30 9.580 - 9.880 10.263 D 11.263 M-15 10.050 - 12.400 I-5 32 11.770 - 12.270 11.538 D 12.488 M-16 33 13.185 - 13.485 34 13.485 - 13.785 35 13.785 - 14.085 36 14.085 - 14.385

MODIS VIIRS

10.780 - 11.28031

20 3.660 - 3.840

VIIRS Bands I1-I5 are 371 m at Nadir VIIRS Bands M1-M16 are 742 m at Nadir

MODIS Bands 1-2 are 250 m at Nadir MODIS Bands 3-7 are 500 m at Nadir MODIS Bands 8-36 are 1,000 m at Nadir

1.371--1.386

(Source: Murphy & Reed, 2009, 4th Global Vegetation Workshop)

VIIRS Environmental Data Records (EDR) •! Imagery and Clouds !! Imagery !! Cloud Mask [IP] !! Cloud base height !! Cloud cover/layers !! Cloud effective particle size !! Cloud optical thickness !! Cloud top height !! Cloud top pressure !! Cloud top temperature !! Net heat flux

•! Land !! Active fires [ARP] !! Land surface albedo !! Land surface temperature !! Vegetation index !! Surface type

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•! Aerosols !! Aerosol optical thickness !! Aerosol particle size !! Suspended matter

•! Cryosphere !! Snow cover/depth !! Sea ice characterization !! Ice surface temperature

•! Ocean !! Sea surface temperature !! Ocean color/chlorophyll

(Adapted from: Cao et al., 2011, NPP User’s Workshop, IGRASS 2011)

!""#$%!&'&()*+,%",-&.%/0#%•! !"#$%&'()*+&",-.#/!"#$%&'()*"+,)"-%$./0'1)("

2'3)$)45)"6)7)+/8%4"94():";-269<"/4("+,)"=4,/45)("6)7)+/8%4"94():";=69<"/+">?@"."%4"/"(/'0A"B/*'*C"

•! 0%""*/'(1*'",*234(5'"3'*67!""–! D,)"-269"()$'&)("E$%."9F"/4("9G"DHI"$)J)5+/45)!"

–! D,)"=69"()$'&)("E$%."9FK"9GK"/4("L>"DHM"$)J)5+/45)!"

•! !"#$%&'(5'3'%+(3/$(89-*&'*$(:-$3'*+!"–! DHMN-269"B)'47"O$%O%*)("E%$"5%484P'+A"Q'+,"LH29R"

–! M%.O%*'+)"O$%(P5+*"+%"B)")&/0P/+)("E%$"50'./+)"*+P(')*"

DHIN-269"

DHMN=69"

LH29RN*'.P0/+)("DHIN-269"S"DHMN=69";GTT?NF??<"

-0.2 1.0 0 0.5 0.75 0.25

120"$%!"%34+-56(!""!! D,)"-269"/4("=69"E$%."DHM"$)J)5+/45)"!! FUN(/A"/+"G@T".K"@TT".K"F"V.K"@"V."!! L%4+,0A"/+"F"V.K"@"V."

Spectral Bandpass Differences 7-9 November 2011


8

""699WR"RO)5+$/0"M%.O/8B'0'+A"I4/0A*'*""X*'47"=HNF"YAO)$'%4!"-269"

•! Z[T"YAO)$'%4"*5)4)*"%&)$"70%B/0"I=WH-=D"*'+)*"Q)$)"O$%5)**)(C"

•! 699WR"/4("LH29R"-269"*,%Q"):5)00)4+"5%.O/8B'0'+A"/+"B%+,"DHI"/4("DHM"0)&)0*C""699WRNLH29R"-269"$)0/8%4*,'O*"/$)"4)/$0A"+,)"*/.)"E%$"B%+,"DHI"/4("DHMC""

•! 699WR"/4("I6YWW\>"-269"*,%Q"7%%("5%.O/8B'0'+AK"BP+"*PB])5+"+%"B'/*C""D,)'$"$)0/8%4*,'O*"/+"DHI"/4("DHM"/$)"('3)$)4+C"""

;L'P$/"/4("^%*,'%V/K"GTFFK"!"#$%&#$'(%)*+,$-.($+/$0&102+.3+4$2$()5.0<"

""699WR"RO)5+$/0"M%.O/8B'0'+A"I4/0A*'*"X*'47"=HNF"YAO)$'%4!"=69"

•! Z[T"YAO)$'%4"*5)4)*"%&)$"70%B/0"I=WH-=D"*'+)*"Q)$)"O$%5)**)(C"

•! 699WR"/4("LH29R"=69"*,%Q"*A*+)./85"('3)$)45)*"(P)"+%"+,)'$"0/$7)0AN('3)$)4+"B0P)"B/4(O/**)*C"""

•! 699WR"/4("LH29R"=69GK")0+647+81(9.:(+)+;*:$+;)0<K"*,%Q"7$)/+)$"5%.O/8B'0'+AC""

;_'.")+"/0CK"GTFTK"=>,/<"

6/0'(/8%4"X*'47"IRW6-";Q'+,"IC"`A/OP*84<""

•! I=WH-=D"RP$E/5)"W)J)5+/45)"6/0'(/8%4"-)+Q%$V";IRW6-<"

•! I55P$/+)"/+.%*O,)$'5"5%$$)58%4"Q'+,"I=WH-=D"

•! I&%'('47"/"5%.O0'5/+)("*O/8/0"*5/0'47"O$%B0)."

•! a0%B/0"/**)**.)4+"

?Nb"-%&).B)$"GTFF" FF"

Prototype Analysis at 10 Sites Using MODIS

-IRI"`M`XM"L))847K"Y/4%'K"6')+4/."";c'/47")+"/0CK"GTFFK"10+#%$#?<"

X*'47"D%Q)$"RO)5+$/0"W)J)5+/45)"/4("I0B)(%"L)/*P$).)4+*";Q'+,"MC"R5,//E<"

•! a$%P4(";4%4N*/+)00'+)<"B/*)("$/('%.)+)$*"%$"*O)5+$%.)+)$*K"'450P('47"#=-K"dRW-K"/4("%+,)$"e)0("5/.O/'74*"

•! I45,%$'47"69"(/+/"+%"7$%P4("•! I"*./00"4P.B)$"%E"*'+)*";c/O/4K"_%$)/K"XRI<"•! RO/8/0"$)O$)*)4+/8&)4)**"

7)89&%1(,:%;+9+4)-+%<$=%

""6/0'(/8%4"X*'47"D%Q)$"f0P:"L)/*P$).)4+*"

•! W)0/847"69"(/+/"+%"'4()O)4()4+"10+&1(:"B'%O,A*'5/0"O$%O)$8)*"

•! I**)**'47"P45)$+/'48)*"'4"+)$.*"%E"/5+P/0"()e4)("P*)$"4))(*";)C7CK"a##<"

•! a0%B/0N*5/0)"/**)**.)4+"

?Nb"-%&).B)$"GTFF" F>"

Harvard Forest

0.2

0.3

0.4

0.5

0.6

0.7

0.8

20

00

-04

9

20

00

-12

9

20

00

-20

9

20

00

-28

9

20

01

-00

1

20

01

-08

1

20

01

-16

1

20

01

-24

1

20

01

-32

1

20

02

-03

3

20

02

-11

3

20

02

-19

3

20

02

-27

3

20

02

-35

3

20

03

-06

5

20

03

-14

5

20

03

-22

5

20

03

-30

5

20

04

-01

7

20

04

-09

7

20

04

-17

7

20

04

-25

7

20

04

-33

7

EV

I

-200

0

200

400

600

800

1000

1200

1400

GP

P (

mm

ol m

-2 d

ay-1

)

EVI GPP

M$%**"5/0'B$/8%4"%E"=69"/4("=69G"E$%."LH29R"/4("R#HDN6aD"8.)"*)$')*".)/*P$).)4+*"Q'+,"10@&1(:K"+%Q)$"()$'&)("O,%+%*A4+,)*'*";a##<"/+"Y/$&/$("f%$)*+"

;YP)+)")+"/0CK"GTTgK">2%1'?+A.%?+B$($.%.*?<"-IRI"`M`XM"L))847K"Y/4%'K"6')+4/."

Summary

•!NPP/VIIRS launched on Oct. 28, 2011 !! Replacing NOAA-19 in the afternoon orbit !! Continuing the global environmental observations

begun with the EOS Terra, Aqua, and Aura. •!VIIRS to provide 21 EDRs, 1 IP, and 1 ARP !! VIIRS Vegetation Index EDR: NDVI and EVI •!Validation to begin in a few months !! Beta –> Provisional –> Validated Stages 1-3

7-9 November 2011


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More Information •! NASA NPP website:

http://jointmission.gsfc.nasa.gov/

•! NOAA/NESDIS/STAR JPSS website: http://www.star.nesdis.noaa.gov/jpss/index.php

•! NOAA/NESDIS JPSS website: http://www.nesdis.noaa.gov/jpss/

•! Data providers: !! NOAA CLASS: http://www.class.noaa.gov !! NASA PEATE

7-9 November 2011


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Pixel Aggregation Scheme


0

200

400

600

800

1000

1200

1400

1600

0 10 20 30 40 50 60

Scan angle (degrees)

Hor

izon

tal S

ampl

e In

terv

al (m

)

Aggregate 3in scan

Aggregate 2in scan

No aggregation

HSI for single-gain moderate resolution bands(imaging bands are 1/2x)

Scan HSI

Track HSI(no aggregation)

1700 km (850 km

off nadir)

(Imaging bands 1/2 Moderate HSI)

3000 km (1500 km off nadir)

43.6 degrees

Aggregate 3 in scan

Dual-gain moderate resolution bands to be aggregated on ground

34% more swath for 1.3 km HSI

1129 km off-nadir

1060 km (530 km

off nadir)

Better than 1.3 km Horizontal Sample Interval (HSI) Well Past 1700km


7-9 November 2011


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(Source: Cao et al., 2011, NPP User’s Workshop, IGRASS 2011)

d/4("2)5%.O%*'8%4"I4/0A*'*"

•! W)("5%.O%4)4+"(%.'4/+)*"+,)"-269"('3)$)45)*C""•! #%*'8&)"$)("5%.O%4)4+"%E"=69"('3)$)45)*"'*"4)P+$/0'1)("BA"4)7/8&)"B0P)"

5%.O%4)4+K"$)*P0847"'4"*./00"=69"B'/*C"""•! =69G"B'/*"$)*P0+*"E$%."'+*"$)("5%.O%4)4+K"Q,'5,"'*"0)**"*'74'e5/4+"+,/4"+,)"

-269"$)("5%.O%4)4+C"

?Nb"-%&).B)$"GTFF" Fb";c'/47")+"/0CK"GTFFK"10+#%$#?<"

-IRI"`M`XM"L))847K"Y/4%'K"6')+4/."

modis and viirs vegetation indices and validation · 2015. 12. 17. · modis and viirs vegetation...

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