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| Titel |
Variability and trend of diurnal temperature range in China and their relationship to total cloud cover and sunshine duration |
| VerfasserIn |
X. Xia |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 31, no. 5 ; Nr. 31, no. 5 (2013-05-03), S.795-804 |
| Datensatznummer |
250019034
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| Publikation (Nr.) |
 copernicus.org/angeo-31-795-2013.pdf |
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| Zusammenfassung |
| This study aims to investigate the effect of total cloud cover
(TCC) and sunshine duration (SSD) in the variation of diurnal temperature
range (DTR) in China during 1954–2009. As expected, the inter-annual
variation of DTR was mainly determined by TCC. Analysis of trends of 30-year
moving windows of DTR and TCC time series showed that TCC changes could
account for that of DTR in some cases. However, TCC decreased during
1954–2009, which did not support DTR reduction across China. DTRs under sky
conditions such as clear, cloudy and overcast showed nearly the same
decreasing rate that completely accounted for the overall DTR reduction.
Nevertheless, correlation between SSD and DTR was weak and not significant
under clear sky conditions in which aerosol direct radiative effect should be
dominant. Furthermore, 30–60% of DTR reduction was associated with DTR
decrease under overcast conditions in south China. This implies that aerosol
direct radiative effect appears not to be one of the main factors determining
long-term changes in DTR in China. |
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