Comparison between MODIS and AIRS/AMSU satellite-derived surface skin temperatures

Y. R. Lee, J. M. Yoo, M. J. Jeong, Y. I. Won, T. Hearty, Dong-Bin Shin

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Surface skin temperatures of the Level 3 products of MODIS Collection 5 (C5) and AIRS/AMSU version 5 (V5) have been compared in terms of monthly anomaly trends and climatologies over the globe during the period from September 2002 to August 2011. The MODIS temperatures in the 50° N-50° S region tend to systematically be ∼1.7 K colder over land and ∼0.5 K warmer over ocean than the AIRS/AMSU temperatures. Over high latitude ocean the MODIS sea surface temperature (SST) values are ∼5.5 K warmer than the AIRS/AMSU. The discrepancies between the annual averages of the two sensors are as much as ∼12 K in the sea ice regions. Meanwhile, the MODIS ice surface temperature product (MYD29E1D) over the ocean is in better agreement with AIRS/AMSU temperatures, showing a root mean square error of 3.7-3.9 K. The disagreement between the two sensors results mainly from the differences in ice/snow emissivity between MODIS infrared and AMSU microwave, and also in their observational local times. Both MODIS and AIRS/AMSU show cooling rates from -0.05±0.06 to -0.14±0.07 K 9 yr-1 over the globe, but warming rates (0.02±0.12 -0.15±0.19 K 9 yr-1) in the high latitude regions.

Original languageEnglish
Pages (from-to)445-455
Number of pages11
JournalAtmospheric Measurement Techniques
Volume6
Issue number2
DOIs
Publication statusPublished - 2013 Aug 27

Fingerprint

AMSU
AIRS
MODIS
skin
temperature
ocean
sensor
ice
emissivity
comparison
sea ice
surface temperature
sea surface temperature
warming
snow
cooling
anomaly

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

Cite this

Lee, Y. R. ; Yoo, J. M. ; Jeong, M. J. ; Won, Y. I. ; Hearty, T. ; Shin, Dong-Bin. / Comparison between MODIS and AIRS/AMSU satellite-derived surface skin temperatures. In: Atmospheric Measurement Techniques. 2013 ; Vol. 6, No. 2. pp. 445-455.
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Comparison between MODIS and AIRS/AMSU satellite-derived surface skin temperatures. / Lee, Y. R.; Yoo, J. M.; Jeong, M. J.; Won, Y. I.; Hearty, T.; Shin, Dong-Bin.

In: Atmospheric Measurement Techniques, Vol. 6, No. 2, 27.08.2013, p. 445-455.

Research output: Contribution to journalArticle

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