نتایج جستجو برای: ماهواره trmm

تعداد نتایج: 6718  

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...

این پژوهش با هدف تهیۀ نقشۀ خطر خشکسالی استان فارس با ترکیب روش شاخص خشکسالی هواشناسی SPI و روش آنومالی NDVI انجام گرفته است. ابتدا به‎کمک داده‌های ماهانۀ بارندگی از 44 ایستگاه استان فارس طی دورۀ آماری 2008-2000، شاخص خشکسالی SPI فصل رشد گیاهان محاسبه شد. سپس نقشه­های SPI را با استفاده از روش کریجینگ معمولی تهیه شده و در پنج کلاس از نظر شدت خشکسالی (در هر سال) قرار گرفتند. پس از اعتبارسنجی داده­...

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’...

1998
David G. Long

Abstruct-The Tropical Rain Measuring Mission (TRMM) precipitation radar (PR) is designed to measure backscatter from rain in order to map the ;mount and extent of rain in the tropical regions. The TRMM F'R also measures the normalized radar cross section (a") of the surface at a nominal resolution of approximately 4.4 km over an incidence range of 018". The Kuband NASA Scatterometer (NSCAT) mad...

2016
Hui Tao Thomas Fischer Yan Zeng Klaus Fraedrich Athanasios Loukas

Satellite-based precipitation monitoring at high spatial resolution is crucial for assessing the water and energy cycles at the global and regional scale. Based on the recently released 7th version of the Multi-satellite Precipitation Analysis (TMPA) product of the Tropical Rainfall Measuring Mission (TRMM), and the monthly precipitation data (3B43) are evaluated using observed monthly precipit...

Journal: :Remote Sensing 2016
Aifeng Lv Lei Zhou

Accurate rainfall estimations based on ground-based rainfall observations and satellite-based rainfall measurements are essential for hydrological and environmental modeling in the Qaidam Basin of China. We evaluated the accuracy of daily and monthly scale Tropical Rainfall Measuring Mission (TRMM) rainfall products in the Qaidam Basin. A Geographically Weighted Regression (GWR) was used to est...

Journal: :Remote Sensing 2016
Fengrui Chen Xi Li

As the successor of the Tropical Rainfall Measuring Mission (TRMM), the Global Precipitation Measurement (GPM) mission significantly improves the spatial resolution of precipitation estimates from 0.25 ̋ to 0.1 ̋. The present study analyzed the error structures of Integrated Multisatellite Retrievals for GPM (IMERG) monthly precipitation products over Mainland China from March 2014 to February 20...

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