نتایج جستجو برای: precipitation prediction

تعداد نتایج: 309951  

Journal: :Remote Sensing 2013
Nir Y. Krakauer Soni M. Pradhanang Tarendra Lakhankar Ajay K. Jha

Precipitation in mountain regions is often highly variable and poorly observed, limiting abilities to manage water resource challenges. Here, we evaluate remote sensing and ground station-based gridded precipitation products over Nepal against weather station precipitation observations on a monthly timescale. We find that the Tropical Rainfall Measuring Mission (TRMM) 3B-43 precipitation produc...

Journal: :Science 2007
Frank J Wentz Lucrezia Ricciardulli Kyle Hilburn Carl Mears

Climate models and satellite observations both indicate that the total amount of water in the atmosphere will increase at a rate of 7% per kelvin of surface warming. However, the climate models predict that global precipitation will increase at a much slower rate of 1 to 3% per kelvin. A recent analysis of satellite observations does not support this prediction of a muted response of precipitat...

The function of precipitation intensity-duration-frequency is needed for the planning and design of water resource projects. Short duration precipitation data are hardly available. However the total hourly-recorded available precipitation data for different parts of NWFP from different departments have been collected and analyzed for the present study. The data from WAPDA is found to be more au...

2011
AMIR AGHAKOUCHAK NASRIN NASROLLAHI JINGJING LI BISHER IMAM SOROOSH SOROOSHIAN

Satellite estimates and weather forecast models have made it possible to observe and predict precipitation over large spatial scales. Despite substantial progress in observing patterns of precipitation, characterization of spatial patterns is still a challenge. Quantitative assessment methods for spatial patterns are essential for future developments in prediction of the spatial extent and patt...

2008
Veronica J. Berrocal Adrian E. Raftery

Short-range forecasts of precipitation fields are needed in a wealth of agricultural, hydrological, ecological and other applications. Forecasts from numerical weather prediction models are often biased and do not provide uncertainty information. Here we present a postprocessing technique for such numerical forecasts that produces correlated probabilistic forecasts of precipitation accumulation...

1999
GANESH R. PANDEY DANIEL R. CAYAN MICHAEL D. DETTINGER KONSTANTINE P. GEORGAKAKOS

A hybrid (physical–statistical) scheme is developed to resolve the finescale distribution of daily precipitation over complex terrain. The scheme generates precipitation by combining information from the upper-air conditions and from sparsely distributed station measurements; thus, it proceeds in two steps. First, an initial estimate of the precipitation is made using a simplified orographic pr...

2008
J. BERROCAL ADRIAN E. RAFTERY TILMANN GNEITING

Short-range forecasts of precipitation fields are needed in a wealth of agricultural, hydrological, ecological and other applications. Forecasts from numerical weather prediction models are often biased and do not provide uncertainty information. Here we present a postprocessing technique for such numerical forecasts that produces correlated probabilistic forecasts of precipitation accumulation...

Various methods developed to convert large-scale data to regional climatic data. In few studies , the results of these methods have been statistically compared. The main purpose of this study was to compare SDSM and LARS-WG models for Downscaling output data of CANE-SM2 and HADGEM2-ES general circulation models under RCP2.6, RCP4.5 and RCP8.5 scenarios. For this study, precipitation, minimum an...

Journal: :Journal of Geophysical Research: Space Physics 2015

Journal: :تحقیقات جغرافیایی 0
سعید موحدی دانشگاه اصفهان سید ابوالفضل مسعودیان دانشگاه اصفهان

in this research, for synchronization analysis of black sea high pressure with daily precipitation in iran data base have been created with using the sea level pressure data in reanalysis ii database in national centers for environmental prediction(ncep)/national center for atmospheric research(ncar). temporal resolution of data is daily and spatial resolution is 2.5 㗠2.5 degrees of arc. fram...

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