NO EVIDENCE FOR IRIS

NO EVIDENCE FOR IRIS

It is shown that the negative correlation between cloud-weighted sea surface temperature (SST) and high cloud fraction discussed recently by Lindzen et al. results from variations in subtropical clouds that are not physically connected to the deep convection near the equator. A negative correlation...

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Veröffentlicht in:Bulletin of the American Meteorological Society 2002-02, Vol.83 (2), p.249-254
Hauptverfasser: Hartmann, Dennis L., Michelsen, Marc L.
Format: Artikel
Sprache:eng
Schlagworte:
Anvil clouds
Cloud cover
Clouds
Convection
Convection clouds
Correlations
Earth, ocean, space
Exact sciences and technology
External geophysics
Meteorology
Oceans
Physics of the oceans
Sea surface temperature
Sea-air exchange processes
Spatial analysis
Subtropics
Temperate regions
Temperature
Time series
Water in the atmosphere (humidity, clouds, evaporation, precipitation)
Wind
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Beschreibung
Zusammenfassung:It is shown that the negative correlation between cloud-weighted sea surface temperature (SST) and high cloud fraction discussed recently by Lindzen et al. results from variations in subtropical clouds that are not physically connected to the deep convection near the equator. A negative correlation between cloud-weighted SST and average cloud fraction results from any variation in cloud fraction over the areas with lower SSTs within the domain of interest. Therefore,this correlation is not evidence that tropical cloud anvil area is inversely proportional to sea surface temperature and should not be used to infer the existence of a negative feedback in the climate system.
ISSN:0003-0007
1520-0477
DOI:10.1175/1520-0477(2002)083<0249:NEFI>2.3.CO;2