نتایج جستجو برای: ماهوارهی trmm

تعداد نتایج: 1319  

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 ...

2010
O. P. Prat

A study was performed using the first full year of rain gauge records from a newly deployed network in the Southern Appalachian mountains. This is a region characterized by complex topography with orographic rainfall enhancement up to 300% over small distances (<8 km). Rain gauge observations were used to assess precipitation estimates from the Precipitation Radar (PR) on board of the TRMM sate...

2001
Walter A. Petersen Stephen W. Nesbitt Richard J. Blakeslee Robert Cifelli Paul Hein Steven A. Rutledge

This study utilizes TRMM satellite precipitation radar, lightning imaging sensor, and passive microwave imager data together with ground-based lightning data to investigate the vertical structure, lightning, and rainfall characteristics of Amazonian and sub-tropical South American convection for three separate wet-seasons. These characteristics are partitioned as a function of 850 mb zonal wind...

بارش از اجزای اصلی چر‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌خه‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌ی آب‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌شناسی است و به داده‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌های آن در تحلیل‌‌‌‌‌‌‌‌‌‌‌‌های آب‌و‌هوایی و مدل‌‌‌های آب‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌شناختی نیاز است. با توجه به کمبود داده‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌های بارش در گستره‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌...

2005
L. GUSTAVO PEREIRA STEVEN A. RUTLEDGE

The characteristics of shallow and deep convection during the Tropical Rainfall Measuring Mission/ Large-Scale Biosphere–Atmosphere Experiment in Amazonia (TRMM/LBA) and the Eastern Pacific Investigation of Climate Processes in the Coupled Ocean–Atmosphere System (EPIC) are evaluated in this study. Using high-quality radar data collected during these two tropical field experiments, the reflecti...

2015
Tingting Shi Xiaomei Yang George Christakos Jinfeng Wang Li Liu Shaun Lovejoy

The accurate assessment of spatiotemporal rainfall variability is a crucial and challenging task in many hydrological applications, mainly due to the lack of a sufficient number of rain gauges. The purpose of the present study is to investigate the spatiotemporal variations of annual and monthly rainfall over Fujian province in China by combining the Bayesian maximum entropy (BME) method and sa...

2017
Xiaoxiao Zhang Guodong Liu Hantao Wang Xiaodong Li

In this paper, we applied the support vector machine (SVM) to the spatial interpolation of the multi-year average annual precipitation in the Three Gorges Region basin. By combining it with the inverse distance weighting and ordinary kriging method, we constructed the SVM residual inverse distance weighting, as well as the SVM residual kriging precipitation interpolation model and compared them...

2015
WEIXIN XU STEVEN A. RUTLEDGE

This study uses Dynamics of theMadden–Julian Oscillation (DYNAMO) shipborne [Research Vessel (R/V) Roger Revelle] radar and Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR) datasets to investigate MJO-associated convective systems in specific organizational modes [mesoscale convective system (MCS) versus sub-MCS and linear versus nonlinear]. TheRevelle radar sampledmany ‘‘cli...

ژورنال: :آبخیزداری ایران 0
بنفشه عبداللهی banafshe abdolahi department of irrigation &amp; reclamation engineering, university of tehran, karaj, iran.گروه مهندسی آبیاری و آبادانی، دانشگاه تهران، کرج. سید محمد حسینی موغاری seyed-mohammad hosseini-moghari department of irrigation &amp; reclamation engineering, university of tehran, karaj, iran.گروه مهندسی آبیاری و آبادانی، دانشگاه تهران، کرج. کیومرث ابراهیمی kumars ebrahimi department of irrigation &amp; reclamation engineering, university of tehran, karaj, iran.گروه مهندسی آبیاری و آبادانی، دانشگاه تهران، کرج.

با توجه به اهمیت داده­های بارش در علوم مختلف و عدم وجود شبکه­ ی باران ­سنجی گسترده و مناسب لازم است داده­ های بارش به نحوی برآورد شوند. یکی از بهترین راه­های برآورد بارش، استفاده از داده­ های ماهواره­ ای است. البته ضروری است که ارزیابی دقت ­این داده­ ها قبل از استفاده انجام شود. در مقاله حاضر به ارزیابی دقت داده­ های بارش ماهواره­ای cmorph و 3b42rt v7 trmm در حوضه گرگانرود پرداخته شده است. بدین...

2007
ERIC A. SMITH

In final form 30 May 2007 © 2007 American Meteorological Society he global hydrological cycle is central to Earth’s climate system, with rainfall and the physics of precipitation formation acting as the key links in the cycle. Two-thirds of global rainfall occurs in the Tropics with the associated latent heat (LH) release accounting for three-fourths of the total heat energy available to Earth’...

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