The effect of the location of stations and temporal variability of temperature on the magnitude of trends

0461940 - ÚFA 2017 US eng A - Abstrakt
Pokorná, Lucie - Cahynová, Monika
The effect of the location of stations and temporal variability of temperature on the magnitude of trends.
13th IMSC program and abstracts. Canmore, Alberta: IMSC Steering Committee, 2016. s. 27.
[International Meeting on Statistical Climatology /13./. 06.06.2016-10.06.2016, Canmore]
Grant CEP: GA ČR(CZ) GA16-04676S
Institucionální podpora: RVO:68378289
Klíčová slova: temperature trends * climatic change * temporal variability of temperature
Kód oboru RIV: DG - Vědy o atmosféře, meteorologie
http://13imsc.pacificclimate.org/13imsc-program.pdf

In a changing climate, temperature trends are of great importance among various indicators. Thanks to availability and good
quality of temperature series, temperature trends are widely used to characterize the manifestation of climatic change from global
to local scale. Although trends over large regions are usually based on areal mean temperature, local trends are computed from
individual station series. In the latter, the geographical position of a station together with the specific conditions of a given place
strongly affect the magnitude of trends. Both parametric and nonparametric methods were applied to station temperature series
in Europe to demonstrate the differences between magnitudes of trends at individual stations. Using moving “subseasons” of
different lengths, the variations of trends within the calendar year, at different altitudes, in various distances from the ocean and
according to latitude are documented. We show that the leading factor determining the magnitude and the statistical significance
of trends is the temporal variability of temperature. In the light of the results the question arises, what magnitude of trend
is representative for the examined domain and whether the magnitude of trends is an appropriate characteristic when comparing
the size of climatic change among various regions.
Trvalý link: http://hdl.handle.net/11104/0261484