globalchange  > 气候变化事实与影响
DOI: 10.1016/j.jhydrol.2019.01.036
WOS记录号: WOS:000462692100005
论文题名:
Performance assessment of CHIRPS, MSWEP, SM2RAIN-CCI, and TMPA precipitation products across India
作者: Prakash, Satya
通讯作者: Prakash, Satya
刊名: JOURNAL OF HYDROLOGY
ISSN: 0022-1694
EISSN: 1879-2707
出版年: 2019
卷: 571, 页码:50-59
语种: 英语
英文关键词: Precipitation ; Multi-satellite ; Rain gauge ; Soil moisture ; Error decomposition
WOS关键词: RAINFALL DATA SET ; GLOBAL PRECIPITATION ; METEOROLOGICAL SUBDIVISIONS ; GAUGE OBSERVATIONS ; GRIDDED RAINFALL ; SATELLITE ; TMPA-3B42 ; GSMAP ; LAND ; SOIL
WOS学科分类: Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向: Engineering ; Geology ; Water Resources
英文摘要:

Accurate long-term estimates of precipitation at fine spatiotemporal resolution are vital for several applications ranging from hydrometeorology to climatology. The availability of a good network of rain gauges, and high precipitation variability associated with two annual monsoon systems and complex topography make India a suitable test-bed to assess the performance of any satellite-based precipitation product This study assesses the performance of latest versions of four multi-satellite precipitation products: (i) Climate Hazards Group InfraRed Precipitation with Station data (CHIRPS), (ii) Multi-Source Weighted-Ensemble Precipitation (MSWEP), (iii) SM2RAIN-Climate Change Initiative (SM2RAIN-CCI), and (iv) TRMM Multisatellite Precipitation Analysis (TMPA) across India using gauge-based observations for the period of 1998-2015 at monthly scale. These four multi-satellite precipitation products are essentially based on different algorithms and input data sets. Among these multi-satellite precipitation products, SM2RAIN-CCI is the only product that does not use rain gauge observations for bias adjustment. Results indicate that CHIRPS and TMPA are comparable to gauge-based precipitation estimates at all-India and sub-regional scales followed by MSWEP estimates. However, SM2RAIN-CCI largely underestimates precipitation across the country as compared to gauge-based observations. The systematic error component in SM2RAIN-CCI dominates as compared to random error component, which suggests the need of a suitable bias correction to SM2RAIN-CCI before integrating it in any application. The overall results indicate that CHIRPS data set could be used for long-term precipitation analyses with rather higher confidence.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/132735
Appears in Collections:气候变化事实与影响

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作者单位: Indian Inst Sci, Divecha Ctr Climate Change, Bengaluru 560012, India

Recommended Citation:
Prakash, Satya. Performance assessment of CHIRPS, MSWEP, SM2RAIN-CCI, and TMPA precipitation products across India[J]. JOURNAL OF HYDROLOGY,2019-01-01,571:50-59
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