Connotea
CiteULike
del.ico.us
BibSonomyAbstract
Seasonal and interannual variations of top-of-atmosphere irradiance and cloud cover over polar regions derived from the CERES data set
Center for Atmospheric Sciences, Hampton University, Hampton, Virginia, USA
Climate Science Branch, NASA Langley Research Center, Hampton, Virginia, USA
Climate Science Branch, NASA Langley Research Center, Hampton, Virginia, USA
Institute of Marine and Coastal Sciences, Rutgers University, New Brunswick, New Jersey, USA
Climate Science Branch, NASA Langley Research Center, Hampton, Virginia, USA
Analytical Services and Materials, Inc., Hampton, Virginia, USA
Department of Meteorology, Pennsylvania State University, University Park, Pennsylvania, USA
Science Applications International Corporation, Hampton, Virginia, USA
The daytime cloud fraction derived by the Clouds and the Earth's Radiant Energy System (CERES) cloud algorithm using Moderate Resolution Imaging Spectroradiometer (MODIS) radiances over the Arctic from March 2000 through February 2004 increases at a rate of 0.047 per decade. The trend is significant at an 80% confidence level. The corresponding top-of-atmosphere (TOA) shortwave irradiances derived from CERES radiance measurements show less significant trend during this period. These results suggest that the influence of reduced Arctic sea ice cover on TOA reflected shortwave radiation is reduced by the presence of clouds and possibly compensated by the increase in cloud cover. The cloud fraction and TOA reflected shortwave irradiance over the Antarctic show no significant trend during the same period.
Received 24 April 2006; accepted 21 August 2006; published 4 October 2006.
Citation: (2006), Seasonal and interannual variations of top-of-atmosphere irradiance and cloud cover over polar regions derived from the CERES data set, Geophys. Res. Lett., 33, L19804, doi:10.1029/2006GL026685.
Cited By