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Seasonal correlations of SST, water vapor, and convective activity in tropical oceans : A new hyperspectral data set for climate model testing

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dc.contributor.author Aumann, Hartmut H.
dc.contributor.author Gregorich, David T.
dc.contributor.author Broberg, Steven E.
dc.contributor.author Elliott, Denis A.
dc.date.accessioned 2008-05-22T17:46:45Z
dc.date.available 2008-05-22T17:46:45Z
dc.date.issued 2007-08-15
dc.identifier.citation Geophysical Research Letters, Vol. 34, L15813, doi:10.1029/2006GL029191, 2007 en_US
dc.identifier.clearanceno 06-4186
dc.identifier.uri http://hdl.handle.net/2014/40815
dc.description.abstract The analysis of the response of the Earth Climate System to the seasonal changes of solar forcing in the tropical oceans using four years of the Atmospheric Infrared Sounder (AIRS) and Advanced Microwave Sounding Unit (AMSU) data between 2002 and 2006 gives new insight into amplitude and phase relationships between surface and tropospheric temperatures, humidity, and convective activity. The intensity of the convective activity is measured by counting deep convective clouds. The peaks of convective activity, temperature in the mid-troposphere, and water vapor in the 0 - 30 N and 0 - 30 S tropical ocean zonal means occur about two months after solstice, all leading the peak of the sea surface temperature by several weeks. Phase is key to the evaluation of feedback. The evaluation of climate models in terms of zonal and annual means and annual mean deviations from zonal means can now be supplemented by evaluating the phase of key atmospheric and surface parameters relative to solstice. The ability of climate models to reproduce the statistical flavor of the observed amplitudes and relative phases for broad zonal means should lead to increased confidence in the realism of their water vapor and cloud feedback algorithms. AIRS and AMSU were launched into a 705 km altitude polar sun-synchronous orbit on the EOS Aqua spacecraft on May 4, 2002, and have been in routine data gathering mode since September 2002. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher American Geophysical Union en_US
dc.subject temperature sounding en_US
dc.subject cloud feedback en_US
dc.subject Atmospheric Infrared Sounder en_US
dc.subject hyperspectral data set en_US
dc.subject climate model en_US
dc.subject tropospheric convective activity en_US
dc.subject atmospheric water vapor
dc.subject seasonal correlations
dc.title Seasonal correlations of SST, water vapor, and convective activity in tropical oceans : A new hyperspectral data set for climate model testing en_US
dc.type Article en_US


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