ClimaTea Journal Club

Date: 

Tuesday, February 14, 2017, 3:00pm to 4:00pm

Location: 

Seminar Room MCZ, 440

Speaker: Jiahua Guo

Jiahua will be presenting the attached paper, “Validating atmospheric reanalysis data using tropical cyclones as thermometers”. Here is her thoughts on the paper:

"How tropical climate variability and change has affected and will affect tropical cyclones is usually studied based on the potential intensity theory, in which potential intensity highly depends on the difference between sea surface temperature and the temperature of the free troposphere. However, potential intensities calculated from different reanalysis products can differ substantially from each other. And the disagreement of temperatures near the tropopause may be one of the potential reasons causing the difference in potential intensity calculations. Therefore, this paper introduces a method to validate the upper-tropospheric temperatures in the reanalysis products by using tropical cyclones themselves as thermometers. It finds that the increasing trend in potential intensity from the NCEP-NCAR reanalysis data is very likely spurious.”

bams-d-14-00180.1.pdf2.76 MB
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