نتایج جستجو برای: gauge stations

تعداد نتایج: 85137  

Journal: :International Journal of Geosciences 2017

Journal: Desert 2013
B. Bakhtiari M. Bordbar M. Nekooamal Kermani

A rain gauge network should serve general as well as specific purposes such as water supply, hydropowergeneration, flood forecasting, irrigation, and flood control. The level of accuracy a network can achieve depends onthe number and locations of gauges in the network. In this study, a rain gauge network was designed for Hormozganprovince in the south of Iran. Monthly rainfall totals from 124 r...

2016
Younghun Jung Yongchul Shin Kyoung Jae Lim Benoit Demars

Distinct seasonal characteristics of monsoon climate significantly affect river streamflow in South Korea. The roles of direct runoff and baseflow on streamflow have become more important to ecosystems and human communities in various watersheds of South Korea. Understanding river characteristics, including direct runoff and baseflow, is the first step of river management and can make a signifi...

Journal: :desert 2013
b. bakhtiari m. nekooamal kermani m. h. bordbar

a rain gauge network should serve general as well as specific purposes such as water supply, hydropowergeneration, flood forecasting, irrigation, and flood control. the level of accuracy a network can achieve depends onthe number and locations of gauges in the network. in this study, a rain gauge network was designed for hormozganprovince in the south of iran. monthly rainfall totals from 124 r...

The purpose of this study is analyzing the trend of drought characteristics in Hamedan Province In this regard, the corrected standardized precipitation index (SPImod) was calculated based on the monthly precipitation data from 11 synoptic and rain gauge stations during the period of 1985-2013. Drought characteristics, including severity, duration and interarrival time were defined and extracte...

Journal: :فیزیک زمین و فضا 0
محمدرضا صلواتی زاده علیرضا آزموده اردلان

sea surface topography (sst) by definition is the separation between the geoid and the mean sea level (msl). the separation between the geoid and msl is caused by various non-gravitational physical effects. if determination of the geoid as the zero point of the height systems from the tide gauge observation be the goal, it is necessary that the affect of the physical effect be precisely compute...

2012
H. Bâki L. Berry M. Koch

Currently regional mean sea level trends and variations are inferred from the analysis of several individual local tide gauge data that span only a long period of time at a given region. In this study, we propose using amodel to merge various tide gauge data, regardless of their time span, in a single solution, to estimate parameters representative of regional mean sea level trends. The propose...

Journal: :Acta medico-historica adriatica : AMHA 2009
Andrew D Cliff Matthew R Smallman-Raynor Peta M Stevens

After the establishment of the first quarantine station in the Republic of Ragusa (modern-day Dubrovnik) in 1377, the states and principalities of Italy developed a sophisticated system of defensive quarantine in an attempt to protect themselves from the ravages of plague. Using largely unknown and unseen historical maps, this paper reconstructs the extent and operation of the system used. It i...

2013
Anoop Kumar Mishra

Rainfall is an extremely variable parameter in both space and time. Rain gauge density is very crucial in order to quantify the rainfall amount over a region. The level of rainfall accuracy is highly dependent on density and distribution of rain gauge stations over a region. Indian Space Research Organisation (ISRO) have installed a number of Automatic Weather Station (AWS) rain gauges over Ind...

Journal: :تحقیقات آب و خاک ایران 0
فرشاد فتحیان دانشگاه تربیت مدرس سعید مرید دانشگاه تربیت مدرس

global warming has brought about changes in meteorological variable time series. these changes, accompanied with serious human intervention in nature, has resulted in hydrological changes. so the effects can be tracked down by the trend of the time series. the purpose of this study is to analyze and compare the monthly and annual trends of temperature, precipitation as well as stream flow time ...

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