نتایج جستجو برای: persiann model

تعداد نتایج: 2104420  

2015
PHU NGUYEN ANDREA THORSTENSEN SOROOSH SOROOSHIAN KUOLIN HSU AMIR AGHAKOUCHAK

Floods are among the most devastating natural hazards in society. Flood forecasting is crucially important in order to provide warnings in time to protect people and properties from such disasters. This research applied the high-resolution coupled hydrologic–hydraulic model from the University of California, Irvine, named HiResFlood-UCI, to simulate the historical 2008 Iowa flood. HiResFlood-UC...

2005
Yang Hong Kuo-Lin Hsu Soroosh Sorooshian Xiaogang Gao

[1] Precipitation Estimation from Remotely Sensed Information Using Artificial Neural Networks (PERSIANN) is a satellite infrared-based algorithm that produces global estimates of rainfall at resolutions of 0.25 0.25 and a half-hour. In this study the model parameters of PERSIANN are routinely adjusted using coincident rainfall derived from the Tropical Rainfall Measurement Mission Microwave Im...

2014
Singaiah Chintalapudi Hatim O. Sharif Hongjie Xie

In this study, seven precipitation products (rain gauges, NEXRAD MPE, PERSIANN 0.25 degree, PERSIANN CCS-3hr, PERSIANN CCS-1hr, TRMM 3B42V7, and CMORPH) were used to force a physically-based distributed hydrologic model. The model was driven by these products to simulate the hydrologic response of a 1232 km watershed in the Guadalupe River basin, Texas. Storm events in 2007 were used to analyze...

Journal: :آب و خاک 0
غضنفری مقدم غضنفری مقدم علیزاده علیزاده موسوی بایگی موسوی بایگی فرید حسینی فرید حسینی بنایان اول بنایان اول

abstract precipitation as the most important factor plays the main role in many application researches which are based on climatic parameters. many researches in the field of hydrology, hydrometeorology and agriculture employs rain-gauges (such as synoptic and climatologic stations) data. precipitation characteristics, such as rainfall intensity and duration, usually exhibit significant spatial...

2007
YANG HONG DAVID GOCHIS JIANG-TAO CHENG KUO-LIN HSU SOROOSH SOROOSHIAN

Robust validation of the space–time structure of remotely sensed precipitation estimates is critical to improving their quality and confident application in water cycle–related research. In this work, the performance of the Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks-Cloud Classification System (PERSIANN-CCS) precipitation product is evaluated agai...

2014
Sheng Chen Huijuan Liu Yalei You Esther Mullens Junjun Hu Ye Yuan Mengyu Huang Li He Yongming Luo Xingji Zeng Guoqiang Tang Yang Hong

Satellite-based precipitation estimates products, CMORPH and PERSIANN-CCS, were evaluated with a dense rain gauge network over Beijing and adjacent regions for an extremely heavy precipitation event on July 21 2012. CMORPH and PEERSIANN-CSS misplaced the region of greatest rainfall accumulation, and failed to capture the spatial pattern of precipitation, evidenced by a low spatial correlation c...

Journal: :Remote Sensing 2015
Shimelis B. Gebere Tena Alamirew Broder J. Merkel Assefa M. Melesse

Accurate estimation of rainfall in mountainous areas is necessary for various water resource-related applications. Though rain gauges accurately measure rainfall, they are rarely found in mountainous regions and satellite rainfall data can be used as an alternative source over these regions. This study evaluated the performance of three high-resolution satellite rainfall products, the Tropical ...

2017
Shanhu Jiang Shuya Liu Liliang Ren Bin Yong Linqi Zhang Menghao Wang Yujie Lu Yingqing He

Satellite precipitation products (SPPs) are critical data sources for hydrological prediction and extreme event monitoring, especially for ungauged basins. This study conducted a comprehensive hydrological evaluation of six mainstream SPPs (i.e., TMPA 3B42RT, CMORPH-RT, PERSIANN-RT, TMPA 3B42V7, CMORPH-CRT, and PERSIANN-CDR) over humid Xixian basin in central eastern China for a period of 14 ye...

Journal: :Remote Sensing 2016
Hao Guo Anming Bao Tie Liu Sheng Chen Felix Ndayisaba

In this paper, Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks–Climate Data Record (PERSIANN-CDR) is analyzed for the assessment of meteorological drought. The evaluation is conducted over China at 0.5 ̋ spatial resolution against a ground-based gridded China monthly Precipitation Analysis Product (CPAP) from 1983 to 2014 (32 years). The Standardized Pr...

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