نتایج جستجو برای: regional flood frequency
تعداد نتایج: 702746 فیلتر نتایج به سال:
Flood hazard maps were developed using remote sensing (RS) data for the historical event of the 1988 flood with data of elevation height, and geological and physiographic divisions. Flood damage depends on the hydraulic factors which include characteristics of the flood such as the depth of flooding, rate of the rise in water level, propagation of a flood wave, duration and frequency of floodin...
abstract because of the many geopolitical, geo economical and geo strategically potentials and communicational capabilities of eco region, members can expand the convergence and the integration in base of this organization that have important impact on members development and expanding peace in international and regional level. based on quality analyzing of library findings and experts interv...
OBJECTIVE To estimate the incidence of psychopathology, frequency of psychiatric symptoms, and their demographic correlates in flood affected female adolescents. STUDY DESIGN Descriptive study. PLACE AND DURATION OF STUDY District Muzaffargarh, Pakistan, from July to October 2011. METHODOLOGY Female adolescent flood victims, aged 13 - 19 years, were recruited. Screening was done and Diagn...
Dongjiang water has been the key source of water supplies for Hong Kong and its neighbouring cities in the Pearl River Delta in South China since the mid-1960s. Rapid economic development and population growth in this region have caused serious concerns over the adequacy of the quantity and quality of water withdrawn from the Dongjiang River in the future. Information on the magnitude and frequ...
in this paper we present a method to perform flood frequency analysis (ffa) when the assumption of stationary is not important (or not valid). a wavelet transform model is developed to ffa. a full series is applied to ffa using two different wavelet functions, and then a combined method is investigated. in the combined method, all discharge data which were less than the lowest value of annual m...
Flooding’s impact on shallow groundwater is not well investigated. In this study, we analyzed changes in the depth and quality of a regional shallow aquifer in the 10.9 × 104 km2 Sanjiang Plain, Northeast China, following a large flood in the summer of 2013. Pre(2008–2012) and post-flood records on groundwater table depth and groundwater chemistry were gathered from 20 wells across the region. ...
[1] Recognizing that the frequency distribution of annual maximum floods at a given location may change over time in response to interannual and longer climate fluctuations, we compare two approaches for the estimation of flood quantiles conditional on selected ‘‘climate indices’’ that carry the signal of structured low-frequency climate variation, and influence the atmospheric mechanisms that ...
Flood susceptibility is becoming increasingly important among the various natural disasters in terms of environmental, economic, and social consequences. The eco-regional planning approach, which incorporates ecological boundary as a layer spatial process settlements, one most innovative concepts recent research to address these problems. Hence, this interrogated flood mapping tools using an ap...
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