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SUMMARY:Peter Guttorp (Norsk Regnesentral)
DTSTART:20241113T121500Z
DTEND:20241113T130000Z
DTSTAMP:20260422T161047Z
UID:gbgstats/64
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/gbgstats/64/
 ">Water is warmer than air\, so why do we use sea surface temperature to e
 stimate global temperature?</a>\nby Peter Guttorp (Norsk Regnesentral) as 
 part of Gothenburg statistics seminar\n\nLecture held in MVL14.\n\nAbstrac
 t\nIn the study of global climate\, ocean temperature estimates use sea su
 rface temperature (SST) anomalies instead of marine atmospheric temperatur
 e (MAT) anomalies. A key question is to ask what biases result from this c
 hoice. In this talk we employ hierarchical statistical models to investiga
 te spatial-temporal differences between SST and MAT anomalies in the tropi
 cal Pacific. The analysis uses observations from the Tropical Atmosphere O
 cean (TAO) buoy network. We use a spatio-temporal modeling approach that a
 ccounts for missing data in the observation network\, and allows for full 
 uncertainty quantification.  We also compare our results to another analys
 is that uses data from the European Center for Medium Range Weather Foreca
 sting fifth generation reanalysis product (ERA5). We find no indication of
  bias or trend in replaciing MAT by SST in calculating global temperature 
 anomalies.\n
LOCATION:https://researchseminars.org/talk/gbgstats/64/
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