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The geostatistical techniques of GPI, IDW and Kriging were applied in order to evaluate the use of these statistical approaches in GIS environment to examine artificial recharge dams and its effect on...
Isohyetal maps were prepared to estimate Probable Maximum Precipitation (PMP) for long duration storms in Peninsular Malaysia. Historical storms of 1, 3 and 5-day durations from 21 rainfall recording ...
A grid-based distributed hydrological model WetSpa, compatible with ArcView GeographicInformation Systems (GIS), was applied to the 7,860 km2 Upper Suriname River basin. Modelparameters were derived f...
该文借助 ArcMap与 GRIDATB计算地形指数—面积分布函数,运用 TOPMODEL模型对广东省韩江棠荆流域的 暴雨径流进行研究,利用该流域1989—2004年的降雨、蒸发与流量资料,采用地貌参数法与人工调参法对其中的6场洪 水进行模型参数的率定,使用另外的6场洪水进行模型的验证,并对影响模型模拟精度的因素进行了讨论。在参数率定 期及验证期的确定性系数平均值可达8205%和7658...
The availability of both global and regional elevation datasets acquired by modern remote sensing technologies provides an opportunity to significantly improve the accuracy of stream mapping, especial...
A comparison of passive microwave images from the Nimbus-7 Scanning Multichannel Microwave Radiometer (SMMR) and visual images from the Defense Meteorological Satellite Program (DMSP) of the Upper C...
For many years, digital snow cover mapping using satellite data had to be carried out on large and expensive image processing systems. Recently, small computer systems (microcomputers) have been dev...
A 0.05 km2 patterned bog and a 0.29 km2 ribbed fen were compared to determine the influence of their morphometry on runoff and evapotranspiration. The bog hydrology was dominated by irregularly loca...
Ice Conditions along the Estonian Coast in a Statistical View     Ice Conditions  Estonian Coast  Statistical View       font style='font-size:12px;'> 2009/10/22
The paper presents the results from analysis of long-term (100-year) time series of freezing, fast ice formation, disappearance of fast ice, break-up and ice thickness for eight stations situated al...
A graphical method is applied to display the physical-chemical characteristics of the Miriñay River, Corrientes Province, Argentina. The graphical results show the following parameters: pH, alk...
We present an improvement of Clark's Instantaneous Unit Hydrograph (IUH), which we call the "GAIUH", linking hydrological parameters and geomorphologic characteristics of flatland basins with strong h...
新疆铁干里克绿洲水文过程对土壤盐渍化的影响     绿洲  地下水埋深  土壤盐渍化  塔里木河       font style='font-size:12px;'> 2009/9/16
在对塔里木河下游绿洲地表灌溉水和地下水水质特征及土壤盐分实测分析的基础上,探讨了地表水、地下水过程及其对土壤盐渍化的影响。结果显示:塔里木河下游绿洲灌区地表水矿化度与土壤表层0~50 cm盐分含量呈显著正相关,与50~100 cm土层含盐量相关性不显著;地下水埋深与土壤盐分含量密切相关,0~50 cm表层土壤盐分含量随地下水埋深的增加而下降,其中0~20 cm下降幅度最大。当地下水埋深较浅时,...
Physico-empirical approach for mapping soil hydraulic behaviour     soil hydraulic  soil map       font style='font-size:12px;'> 2009/6/8
Pedo-transfer functions are largely used in soil hydraulic characterisation of large areas. The use of physico-empirical approaches for the derivation of soil hydraulic parameters from disturbed sam...
An analysis of hydrograph recessions can be used to identify the parameters of a conceptual catchment storage irnodel and, with the advent of large-scale digital data storage and automated logging sys...
Mapping an index of extreme rainfall across the UK     rainfall  digital terrain model  maximum rainfall       font style='font-size:12px;'> 2009/6/5
Distance from the sea, proximity of mountains, continentality and elevation are all useful covariates to assist the mapping of extreme rainfalls. Regression models linking these and other variables ca...

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