GSTDTAP  > 气候变化
DOI10.1002/joc.5202
Radar-based summer precipitation climatology of the Czech Republic
Bliznak, Vojtech1; Kaspar, Marek1; Mueller, Miloslav1,2
2018-02-01
发表期刊INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN0899-8418
EISSN1097-0088
出版年2018
卷号38期号:2页码:677-691
文章类型Article
语种英语
国家Czech Republic
英文摘要

To assess the climatology of the Czech Republic (CR) with a high spatial (1km) resolution, this study uses radar-based precipitation data collected over the summer seasons of a 10-year period (2002-2011). Radar reflectivity data were obtained from two C-band Doppler weather radars, integrated in time and merged with daily precipitation totals from rain gauge measurements. Using radar measurements, daily adjusted precipitation totals were later divided into 10-min precipitation totals that were continuously accumulated in a series of time windows ranging from 30min to 24h. This climatological analysis confirms that altitude substantially influences not only the spatial distribution of mean precipitation but also the spatial distribution of precipitation maxima as well as the diurnal cycle of precipitation in the CR. While the 24-h totals are generally maximal in mountains, mean and absolute seasonal maxima of short-term totals (up to 1 and 6h, respectively) are detected in altitudes between 300 and 600m a.s.l. Regarding the diurnal cycle, maximum frequency of precipitation occurs 2h earlier in the mountains, whereas mean totals remain at the same level until 2100 UTC. The mean time during which precipitation maxima occur generally does not change with altitude. Nevertheless, a detailed regional study demonstrates that short-term precipitation maxima usually start earlier in the afternoon in and around mountainous regions. Long-term (mainly 6-h) precipitation maxima occur later than short ones but are substantially less concentrated in time, especially in the mountains. These differences between mountains and lowlands can be explained by smaller relative proportions and earlier onset of convective precipitation in mountains.


英文关键词weather radar rain gauges adjustment precipitation climatology Czech Republic
领域气候变化
收录类别SCI-E
WOS记录号WOS:000423816900012
WOS关键词HOURLY PRECIPITATION ; AREAL PRECIPITATION ; EASTERN CHINA ; DIURNAL CYCLE ; RUNOFF EVENTS ; GAUGE ; TERRITORY ; RAINFALL ; WEATHER ; SEASONALITY
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/37306
专题气候变化
作者单位1.Inst Atmospher Phys CAS, Dept Meterorol, Bocni 2 1401, Prague 14131, Czech Republic;
2.Charles Univ Prague, Dept Phys Geog & Geoecol, Fac Sci, Prague, Czech Republic
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Bliznak, Vojtech,Kaspar, Marek,Mueller, Miloslav. Radar-based summer precipitation climatology of the Czech Republic[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2018,38(2):677-691.
APA Bliznak, Vojtech,Kaspar, Marek,&Mueller, Miloslav.(2018).Radar-based summer precipitation climatology of the Czech Republic.INTERNATIONAL JOURNAL OF CLIMATOLOGY,38(2),677-691.
MLA Bliznak, Vojtech,et al."Radar-based summer precipitation climatology of the Czech Republic".INTERNATIONAL JOURNAL OF CLIMATOLOGY 38.2(2018):677-691.
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