Open AccessThe Influence of Changes in Cloud Cover on Recent Surface Temperature Trends in the Arctic
Author(s) -
Yinghui Liu,
Jeffrey R. Key,
Xuanji Wang
Publication year - 2008
Publication title -
journal of climate
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.315
H-Index - 287
eISSN - 1520-0442
pISSN - 0894-8755
DOI - 10.1175/2007jcli1681.1
Subject(s) - cloud cover , environmental science , climatology , arctic , sky , satellite , atmospheric sciences , the arctic , climate change , meteorology , cloud computing , geography , geology , oceanography , aerospace engineering , computer science , engineering , operating system
A method is presented to assess the influence of changes in Arctic cloud cover on the surface temperature trend, allowing for a more robust diagnosis of causes for surface warming or cooling. Seasonal trends in satellite-derived Arctic surface temperature under clear-, cloudy-, and all-sky conditions are examined for the period 1982–2004. The satellite-derived trends are in good agreement with trends in the European Centre for Medium-Range Weather Forecasts (ECMWF) reanalysis product and surface-based weather station measurements in the Arctic. Surface temperature trends under clear and cloudy conditions have patterns similar to the all-sky trends, though the magnitude of the trends under cloudy conditions is smaller than those under clear-sky conditions, illustrating the negative feedback of clouds on the surface temperature trends. The all-sky surface temperature trend is divided into two parts: the first part is a linear combination of the surface temperature trends under clear and cloudy cond...
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