Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.4793 |
Wintertime precipitation climatology and ENSO sensitivity over central southwest Asia | |
Rana, Sapna; McGregor, James; Renwick, James | |
2017-03-15 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2017 |
卷号 | 37期号:3 |
文章类型 | Article |
语种 | 英语 |
国家 | New Zealand |
英文摘要 | This article presents a detailed comparison of ten precipitation products over the central southwest Asia (CSWA) region. The spatial characteristics and temporal variations of wintertime precipitation over CSWA region are assessed using four gauge-only [Asian Precipitation-Highly Resolved Observational Data Integration Towards Evaluation of Water Resources (APHRODITE), Climate Prediction Center Unified Rain gauge (CPC-uni), Global Precipitation Climatology Center Full Data Reanalysis (GPCC) and Climate Research Unit (CRU)]; three satellite-derived (3B42-V6, 3B42-V7 and GPCP-1DD) and three reanalysis [Climate Forecast System Reanalysis (CFSR), ERA-Interim and Modern-Era Retrospective Analysis for Research and Applications (MERRA)] precipitation products. The analysis is performed for two different periods: (1979-2007) for the gauge-only/reanalyses and (1998-2007) for the satellite-derived products. Using an ensemble average of four gauge-only observational data sets as our reference, we carry out comprehensive qualitative assessment of the uncertainties/biases associated with each data set. Additionally, we examine the relationship pattern between CSWA wintertime precipitation and El Nino-Southern Oscillation (ENSO) phases. In the gauge-only category, APHRODITE and GPCC perform better than CPC-uni and CRU data sets in terms of the spatial and temporal variations of skill matrices. Overall, GPCC shows the best performance (including the precipitation sensitivity to ENSO events) and is the preferable observational data set for long-term climatological analysis over the CSWA region. Among the satellite-derived precipitation products, 3B42-V7 displays the most realistic wintertime precipitation distribution pattern when compared to 3B42-V6 and GPCP-1DD; however, efforts are needed to further improve the accuracy of satellite-derived products over the dry arid and semi-arid areas of CSWA. In the reanalysis category, MERRA's performance is relatively better than CFSR and ERA-Interim, although significant biases exist in all of the reanalyses due to overestimation of precipitation over the mountainous regions of CSWA. |
英文关键词 | winter precipitation gauge satellite reanalyses ENSO sensitivity |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000395349500027 |
WOS关键词 | DENSE NETWORK ; RAIN GAUGES ; PERFORMANCE ; SNOW ; REANALYSES ; FORCINGS ; DROUGHT ; DATASET ; COVER ; OCEAN |
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/36929 |
专题 | 气候变化 |
作者单位 | Victoria Univ Wellington, Sch Geog Environm & Earth Sci, Wellington 6140, New Zealand |
推荐引用方式 GB/T 7714 | Rana, Sapna,McGregor, James,Renwick, James. Wintertime precipitation climatology and ENSO sensitivity over central southwest Asia[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2017,37(3). |
APA | Rana, Sapna,McGregor, James,&Renwick, James.(2017).Wintertime precipitation climatology and ENSO sensitivity over central southwest Asia.INTERNATIONAL JOURNAL OF CLIMATOLOGY,37(3). |
MLA | Rana, Sapna,et al."Wintertime precipitation climatology and ENSO sensitivity over central southwest Asia".INTERNATIONAL JOURNAL OF CLIMATOLOGY 37.3(2017). |
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