preliminary ed3 and ed2 toa flux comparisons for igbp ... · preliminary ed3 and ed2 toa flux...
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![Page 1: Preliminary Ed3 and Ed2 TOA Flux Comparisons for IGBP ... · Preliminary Ed3 and Ed2 TOA Flux Comparisons for IGBP Surface Types Nitchie Manalo-Smith Norman G. Loeb SSAI NASA LaRC](https://reader033.vdocument.in/reader033/viewer/2022042808/5f8a501c23ea9646d00a68ee/html5/thumbnails/1.jpg)
Preliminary Ed3 and Ed2 TOA FluxComparisons for IGBP Surface Types
Nitchie Manalo-Smith Norman G. Loeb SSAI NASA LaRC
Hampton, VA Hampton, VA
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OVERVIEW•Direct comparison of monthly mean TOA fluxes from
Terra (FM1) to assess impact of Edition 3 calibration changes for various surface types.
DATA• Terra FM1: March 2000 - December 2005• Ed2B_Rev1 vs. Ed3_Beta7 (1ox1o regional monthly means)• CERES cloud-free footprints only•7 IGBP subgroups
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1: Water: 172: Forests: 1-53: Savannas: 8,94: Crop/Grass: 6,10-145: Dark Deserts: 7,186: Bright Deserts: 167: Snow/Ice: 15,19,20
IGBP Surface Types
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Relative Difference in Daytime TOA Flux for June and December(Ed3 - Ed2)/Ed2 x 100%
JUNE DECEMBER
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Relative Difference in Daytime TOA Flux for March and September(Ed3 - Ed2)/Ed2 x 100%
MARCH SEPTEMBER
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Relative Difference in Daytime TOA FluxR
elat
ive
Diff
eren
ce (%
)(E
d3-E
d2)/E
d2 x
100
%
Ocean Forests
Savanna Grass/Cropland
LW
SW
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Relative Difference in Daytime TOA FluxR
elat
ive
Diff
eren
ce (%
)(E
d3-E
d2)/E
d2 x
100
%
Dark Desert Bright Desert
Snow/Ice *
LW
SW
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Relative Difference in Nighttime LW TOA FluxR
elat
ive
Diff
eren
ce (%
)(E
d3-E
d2)/E
Ed2
x 10
0%
Ocean and Forests Dark/Bright Desert
Snow/Ice
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Ocean Forests
Savanna Grass/Cropland
Deseasonalized Anomalies in LW TOATO
A F
lux
Ano
mal
y (W
/m2 )
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Dark Desert Bright Desert
TOA
Flu
x A
nom
aly
(W/m
2 )
Snow/Sea Ice
Deseasonalized Anomalies in LW TOA
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Ocean Forests
Savanna Grass/Cropland
Deseasonalized Anomalies in Nighttime TOA FluxTO
A F
lux
Ano
mal
y (W
/m2 )
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Dark Desert Bright Desert
Snow/Ice
Deseasonalized Anomalies in Nighttime TOA FluxTO
A F
lux
Ano
mal
y (W
/m2 )
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Summary Direct comparison of TOA flux anomalies are performed for CERES
Terra Ed2b_Rev1 and Ed3_Beta7 in a monthly time series for IGBPsurfaces.
Ocean daytime relative differences are in the order of < 1%(LW) and 1.5%(SW).
Land (non-snow/sea ice) daytime relative differences are similar forforests, savannas, grass/croplands and dark deserts and are in the order of~0.5% for LW/SW and within 1% for bright deserts.
Snow/sea ice exhibit large flux relative differences in the order of up to2%.
Nighttime relative flux differences are in the order of 0.2%. Land scenes show larger LW flux anomalies (dark deserts) compared to
ocean and snow/ice scenes. Ed3 flux anomalies generally smaller for Ed2.
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BACK-UP SLIDES
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Anomaly in Daytime TOA Flux Difference(Ed3-Ed2)Ed
3 –
Ed2
Ano
mal
y D
iffer
ence
(W/m
2 )
Ocean Forests
Savanna Grass/Cropland
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Dark Desert Bright Desert
Snow/Ice
Anomaly Difference in Daytime TOA Flux (Ed3-Ed2)Ed
3 –
Ed2
Ano
mal
y D
iffer
ence
(W/m
2 )