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Trends in Global Cloud Cover in Two Decades of HIRS Observations.
- Source :
- Journal of Climate; Aug2005, Vol. 18 Issue 15, p3021-3031, 11p, 6 Charts, 8 Graphs, 2 Maps
- Publication Year :
- 2005
-
Abstract
- The frequency of cloud detection and the frequency with which these clouds are found in the upper troposphere have been extracted from NOAA High Resolution Infrared Radiometer Sounder (HIRS) polar-orbiting satellite data from 1979 to 2001. The HIRS/2 sensor was flown on nine satellites from the Television Infrared Observation Satellite-Next Generation (TIROS-N) through NOAA-14, forming a 22-yr record. Carbon dioxide slicing was used to infer cloud amount and height. Trends in cloud cover and high-cloud frequency were found to be small in these data. High clouds show a small but statistically significant increase in the Tropics and the Northern Hemisphere. The HIRS analysis contrasts with the International Satellite Cloud Climatology Project (ISCCP), which shows a decrease in both total cloud cover and high clouds during most of this period. [ABSTRACT FROM AUTHOR]
- Subjects :
- CLOUDS
METEOROLOGY
RADIOMETERS
METEOROLOGICAL instruments
CARBON dioxide
CLIMATOLOGY
Subjects
Details
- Language :
- English
- ISSN :
- 08948755
- Volume :
- 18
- Issue :
- 15
- Database :
- Complementary Index
- Journal :
- Journal of Climate
- Publication Type :
- Academic Journal
- Accession number :
- 18184021
- Full Text :
- https://doi.org/10.1175/JCLI3461.1