نتایج جستجو برای: satellite precipitation products spps

تعداد نتایج: 421522  

2012
Amir AghaKouchak Ali Mehran Hamidreza Norouzi Ali Behrangi

[1] This study contributes to characterization of satellite precipitation error which is fundamental to develop uncertainty models and bias reduction algorithms. Systematic and random error components of several satellite precipitation products are investigated over different seasons, thresholds and temporal accumulations. The analyses show that the spatial distribution of systematic error has ...

Journal: :Remote Sensing 2016
Aleix Serrat-Capdevila Manuel Merino Juan B. Valdes Matej Durcik

We present an evaluation of daily estimates from three near real-time quasi-global Satellite Precipitation Products—Tropical Rainfall Measuring Mission (TRMM) Multi-satellite Precipitation Analysis (TMPA), Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks (PERSIANN), and Climate Prediction Center (CPC) Morphing Technique (CMORPH)—over the African contine...

2012
Abebe S. Gebregiorgis Yudong Tian Christa D. Peters-Lidard Faisal Hossain

[1] The key question that is asked in this study is ‘‘how are the three independent bias components of satellite rainfall estimation, comprising hit bias, missed, and false precipitation, physically related to the estimation uncertainty of soil moisture and runoff for a physically based hydrologic model?’’ The study also investigated the performance of different satellite rainfall products as a...

2017
Akhilesh S. Nair

Error characterization is vital for the advancement of precipitation algorithms, the evaluation of numerical model outputs, and their integration in various hydro-meteorological applications. The Tropical Rainfall Measuring Mission (TRMM) Multi-satellite Precipitation Analysis (TMPA) has been a benchmark for successive Global Precipitation Measurement (GPM) based products. This has given way to...

Journal: :Atmospheric Research 2022

Evaluating the quality of satellite precipitation products (SPPs) is crucially important for SPPs' applications and improvements. This study aims to comprehensively evaluate accuracy six widely used SPPs (GSMaP, IMERG, TMPA, CMORPH, PERSIANN, CHIRPS) from 2000 2017 over mainland China using 2372 rain gauges. The performance at different spatio-temporal scales altitudes are explored. probability...

Journal: :Progress in Earth and Planetary Science 2019

Journal: :Remote Sensing 2018
Haigen Zhao Shengtian Yang Songcai You Yingchun Huang Qianfeng Wang Qiuwen Zhou

The Integrated Multi-satellitE Retrievals for Global Precipitation Measurement Final Run (IMERGF) product has now been upgraded to Version 4 (V4), which has been available since March 2017. Therefore, it is desirable to evaluate the characteristic differences between the V4 and the previous V3 products. A comprehensive performance evaluation of the errors of the successive V3 and V4 IMERGF prod...

2015
Ting Xia Zhong-Jing Wang Hang Zheng

Topography is a significant factor influencing the spatial distribution of precipitation. This study developed a new methodology to evaluate and calibrate the Tropical Rainfall Measuring Mission Multi-satellite Precipitation Analysis (TMPA) products by merging geographic and topographic information. In the proposed method, firstly, the consistency rule was introduced to evaluate the fitness of ...

Journal: :Remote Sensing 2018
Guanghua Wei Haishen Lü Wade T. Crow Yonghua Zhu Jianqun Wang Jianbin Su

A critical evaluation of the newly released precipitation data set is very important for both the end users and data developers. Meanwhile, the evaluation may provide a benchmark for the product’s continued development and future improvement. To these ends, the four precipitation estimates including IMERG (the Integrated Multi-satellitE Retrievals for the Global Precipitation Measurement) V04A,...

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