气候变化领域集成服务门户(CCPortal): Assessment of IMERG-V06, TRMM-3B42V7, SM2RAIN-ASCAT, and PERSIANN-CDR precipitation products over the hindu kush mountains of Pakistan, South Asia

CCPortal

DOI	10.3390/rs12233871
	Assessment of IMERG-V06, TRMM-3B42V7, SM2RAIN-ASCAT, and PERSIANN-CDR precipitation products over the hindu kush mountains of Pakistan, South Asia
	Hamza A.; Anjum M.N.; Cheema M.J.M.; Chen X.; Afzal A.; Azam M.; Shafi M.K.; Gulakhmadov A.
发表日期	2020
ISSN	14712229
起始页码	1
结束页码	24
卷号	12 期号:23
英文摘要	In this study, the performances of four satellite-based precipitation products (IMERG-V06 Final-Run, TRMM-3B42V7, SM2Rain-ASCAT, and PERSIANN-CDR) were assessed with reference to the measurements of in-situ gauges at daily, monthly, seasonal, and annual scales from 2010 to 2017, over the Hindu Kush Mountains of Pakistan. The products were evaluated over the entire domain and at point-to-pixel scales. Different evaluation indices (Correlation Coefficient (CC), Root Mean Square Error (RMSE), Bias, and relative Bias (rBias)) and categorical indices (False Alarm Ration (FAR), Critical Success Index (CSI), Success Ratio (SR), and Probability of Detection (POD)) were used to assess the performances of the products considered in this study. Our results indicated the following. (1) IMERG-V06 and PERSIANN capably tracked the spatio-temporal variation of precipitation over the studied region. (2) All satellite-based products were in better agreement with the reference data on the monthly scales than on daily time scales. (3) On seasonal scale, the precipitation detection skills of IMERG-V06 and PERSIANN-CDR were better than those of SM2Rain-ASCAT and TRMM-3B42V7. In all seasons, overall performance of IMERG-V06 and PERSIANN-CDR was better than TRMM-3B42V7 and SM2Rain-ASCAT. (4) However, all products were uncertain in detecting light and moderate precipitation events. Consequently, we recommend the use of IMERG-V06 and PERSIANN-CDR products for subsequent hydro-meteorological studies in the Hindu Kush range. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
英文关键词	Hindu Kush Mountains; IMERG-V06; PERSIANN-CDR; Satellite precipitation; SM2Rain-ASCAT; TRMM-3B42V7
语种	英语
scopus关键词	Remote Sensing
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158387
作者单位	Department of Land and Water Conservation Engineering, Faculty of Agricultural Engineering and Technology, PMAS-Arid Agriculture University, Rawalpindi, 46000, Pakistan; State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China; Research Center for Ecology and Environment of Central Asia, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China; Department of Energy Systems Engineering, Faculty of Agricultural Engineering and Technology, PMAS-Arid Agriculture University, Rawalpindi, 46000, Pakistan; Department of Structures and Environmental Engineering, Faculty of Agricultural Engineering and Technology, PMAS-Arid Agriculture University, Rawalpindi, 46000, Pakistan; State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China; Institute of Water Problems, Hydropower and Ecology of the Academ...
推荐引用方式 GB/T 7714	Hamza A.,Anjum M.N.,Cheema M.J.M.,et al. Assessment of IMERG-V06, TRMM-3B42V7, SM2RAIN-ASCAT, and PERSIANN-CDR precipitation products over the hindu kush mountains of Pakistan, South Asia[J]. 中国科学院西北生态环境资源研究院,2020,12(23).
APA	Hamza A..,Anjum M.N..,Cheema M.J.M..,Chen X..,Afzal A..,...&Gulakhmadov A..(2020).Assessment of IMERG-V06, TRMM-3B42V7, SM2RAIN-ASCAT, and PERSIANN-CDR precipitation products over the hindu kush mountains of Pakistan, South Asia.,12(23).
MLA	Hamza A.,et al."Assessment of IMERG-V06, TRMM-3B42V7, SM2RAIN-ASCAT, and PERSIANN-CDR precipitation products over the hindu kush mountains of Pakistan, South Asia".12.23(2020).