Gridded Versus Station Temperatures: Time Evolution of Relationships With Atmospheric Circulation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F20%3A00538245" target="_blank" >RIV/68378289:_____/20:00538245 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/20:10417092
Result on the web
<a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020JD033254" target="_blank" >https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020JD033254</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1029/2020JD033254" target="_blank" >10.1029/2020JD033254</a>
Alternative languages
Result language
angličtina
Original language name
Gridded Versus Station Temperatures: Time Evolution of Relationships With Atmospheric Circulation
Original language description
Interpolated data sets are often considered to be a reliable source of information on a variety of meteorological variables, such as temperature and precipitation. Users expect the interpolated data to be rather similar to those directly observed at stations, which is not always true: well documented is the influence of interpolation on, e.g., extremes. Here another kind of discrepancy between gridpoints and station observations is presented: the time evolution of relationships between temperature and atmospheric circulation. One of the most widely utilized gridded temperature data sets, CRU TS (Climatic Research Unit gridded Time Series), is compared with 634 station time series from GHCN (Global Historical Climatology Network) in the Northern Extratropics. We analyze running correlations (calculated for 15-year windows) of monthly values between modes of atmospheric circulation variability (identified in the ERA-40 reanalysis) and temperature anomalies in winter from 1957 to 2002. The smallest differences in the running correlations are found in Europe and North America due to a dense station network. On the other hand, the sites with considerable differences are located mainly in mountainous regions or in isolated locations. In order to uncover causes of these differences, we analyze two sites in more detail. Mike (the North Sea) is an isolated site where the gridpoint temperature is affected by rather distant Scandinavian stations. At Songpan (central China: 2,852 m a.s.l), the terrain configuration in mountainous region influences the gridpoint value, in which the effect of stations with much lower altitude and different climate conditions is dominant.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10509 - Meteorology and atmospheric sciences
Result continuities
Project
<a href="/en/project/GA17-07043S" target="_blank" >GA17-07043S: Teleconnections - major building blocks of atmospheric circulation</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Geophysical Research: Atmospheres
ISSN
2169-897X
e-ISSN
—
Volume of the periodical
125
Issue of the periodical within the volume
20
Country of publishing house
US - UNITED STATES
Number of pages
17
Pages from-to
e2020JD033254
UT code for WoS article
000588398800016
EID of the result in the Scopus database
2-s2.0-85094137836