نتایج جستجو برای: monthly rainfall

تعداد نتایج: 62739  

Journal: :SpringerPlus 2016
Paul Essel Eric T Glover Serwaa Yeboah Yaw Adjei-Kyereme Israel Nutifafa Doyi Yawo Mawutoli Nyarku Godfred S Asumadu-Sakyi Gustav Kudjoe Gbeddy Yvette Agyiriba Agyiri Evans Mawuli Ameho Emmanuel Atule Aberikae

Rainfall erosivity is the potential ability for rainfall to cause soil loss. The purpose of this study was to estimate the rainfall erosivity index for the Ghana Atomic Energy Commission site in order to compute the surface erosion rate. Monthly rainfall data, for the period 2003-2012 were used to compute annual rainfall erosivity indices for the site, using the Modified Fournier index. Values ...

2003
CHRISTOPHER GRASSOTTI ROSS N. HOFFMAN ENRIQUE R. VIVONI DARA ENTEKHABI Ralph M. Parsons

A detailed intercomparison was performed for the period January 1998–June 1999 of three different sets of rainfall observations over the watershed covered by the National Weather Service Arkansas–Red Basin River Forecast Center (ABRFC). The rainfall datasets were 1) hourly 4-km-resolution ABRFC-produced P1 estimates, 2) 15-min 2-km resolution NOWrad estimates produced and marketed by Weather Se...

2016
Assumpta Mukabutera Dana Thomson Megan Murray Paulin Basinga Laetitia Nyirazinyoye Sidney Atwood Kevin P. Savage Aimable Ngirimana Bethany L. Hedt-Gauthier

BACKGROUND Diarrhea among children under 5 years of age has long been a major public health concern. Previous studies have suggested an association between rainfall and diarrhea. Here, we examined the association between Rwandan rainfall patterns and childhood diarrhea and the impact of household sanitation variables on this relationship. METHODS We derived a series of rain-related variables ...

ژورنال: علوم آب و خاک 2012
احمد فاخری‌فرد, , رسول میرعباسی نجف‌آبادی, , یعقوب دین‌پژوه , ,

Accurate estimation of runoff for a watershed is a very important issue in water resources management. In this study, the monthly runoff was estimated using the rainfall information and conditional probability distribution model based on the principle of maximum entropy. The information of monthly rainfall and runoff data of Kasilian River basin from 1960 to 2006 were used for the development o...

2006
K. N. Chaudhari

The spatial application of crop simulation models need grid based spatially distributed input of rainfall. The global products of satellite based rainfall estimation can provide spatial maps on regular time basis and can be used as an input to crop models. An attempt has been made to validate the satellite derived NOAA CPC rainfall estimation with ground based measurements for year 2003 and 200...

ژورنال: بوم شناسی آبزیان 2015
Alijanpour, Narges , Amiri, Kaveh , Bani, Ali , Basatnia, Nabee , Hadifar, Ali ,

The present study analysed the relationship between catch amounts of the Clupeidae species and monthly average weather temperature, rainfall, wave high and water depth in the southwestern of Caspian Sea. The data from two maritime consecutive years gathered by means of industrial fishing vessel were used in the data analysis. The results showed that the correlation between monthly average water...

Journal: :Remote Sensing 2017
Yared Bayissa Tsegaye Tadesse Getachew Demisse Andualem Shiferaw

Drought is a recurring phenomenon in Ethiopia that significantly impacts the socioeconomic sector and various components of the environment. The overarching goal of this study is to assess the spatial and temporal patterns of meteorological drought using a satellite-derived rainfall product for the Upper Blue Nile Basin (UBN). The satellite rainfall product used in this study was selected throu...

2009
K. N Krishnakumar G.S.L.H.V. Prasada Rao C. S Gopakumar

Attempts were made to study temporal variation in monthly, seasonal and annual rainfall over Kerala, India, during the period from 1871 to 2005. Longterm changes in rainfall determined by Man-Kendall rank statistics and linear trend. The analysis revealed significant decrease in southwest monsoon rainfall while increase in post-monsoon season over the State of Kerala which is popularly known as...

2015
M. Biasutti

Downscaled rainfall projections from 21 climate models from the CMIP5 (Coupled Model Intercomparison Project Phase 5) archive are used to estimate future changes in rainfall erosivity in the continental Unites States. To estimate erosivity from rainfall in the absence of sub-hourly data, we have used both daily rainfall values and the modified Fournier index – which is based on monthly rainfall...

1970
ERIC C. BARRETT

The global distribution of precipitation is an outstanding example of a pattern whose form cannot be deduced very satisfactorily from conventional observational data. Many investigations of the global hydrological cycle across real periods of time are based on broadly generalized assumptions concerning rainfall patterns, especially over the world’s oceans. This paper explores the feasibility of...

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