 |
| Titel |
Comparison between MODIS and AIRS/AMSU satellite-derived surface skin temperatures |
| VerfasserIn |
Y.-R. Lee, J.-M. Yoo, M.-J. Jeong, Y.-I. Won, T. Hearty, D.-B. Shin |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1867-1381
|
| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 6, no. 2 ; Nr. 6, no. 2 (2013-02-20), S.445-455 |
| Datensatznummer |
250017401
|
| Publikation (Nr.) |
 copernicus.org/amt-6-445-2013.pdf |
|
|
|
|
|
| Zusammenfassung |
| 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. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|