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河道水位是洪水预报的关键变量,也是地表水资源供给能力的晴雨表。河道水位一般通过水文站实测,但由于全球水文站网密度稀疏,流域内存在大量的无河道水位观测断面,成为全流域精准防洪和水资源管理的硬件短板。测高卫星观测的水位数据可以覆盖全河道,这有力地提高了水位数据的空间代表能力。然而测高卫星要么空间分辨率太粗糙,无法识别小于80米的窄河道的水位;要么回访周期太长,无法探测河宽的关键时间变化节点。因此如何获...
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...
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...
The chosen area of this case study is the northern part of the Ebro Delta in northeast Spain. It used to be an unhealthy swamp until sixty to eighty years ago. Within a relatively short period, thi...
Most hydrological models are valid at most only in a few places and cannot be reasonably transferred to other places or to far distant time periods. Transfer in space is difficult because the models a...
Numerous graphical pre- and post-processors have been developed for numerical modeling. Many of these systems support numerical models that can be used for both steady state and transient simulations....
The moisture content of the active layer at three sites in a continuous permafrost area was measured using a twin-probe gamma density meter. The moisture storage status at these sites were related t...
1998 was a very warm year for Canada and the High Arctic was no exception. A typical area was Resolute, Cornwallis Island, Nunavut, where the thaw season was extended and the thawing degree-days wer...
The Soil Conservation Service Curve Number (SCS-CN) method is a simple, widely used and efficient procedure for determining the expected amount of runoff from rainfall in a particular area. Its use, h...
Assessment of groundwater pollution vulnerability using the DRASTIC model in a GIS environment has become more widespread for effective groundwater planning and management. Groundwater vulnerability i...
This research estimates the flood zone and economic damages over an 8.2 km reach of the perennial Laeen Soo River in the northern Khorasan Province, Iran, using HEC-GEORAS, a combination of HEC-RAS wi...
Urbanization affects quantitatively and qualitatively groundwater environment in urban area. Especially, groundwater environment in large urban area has been changed more than several decades. However...
To evaluate the effects of variations in rainfall on groundwater, long-term rainfall records were used to simulate groundwater levels over the period 1953-96 at an experimental catchment in south-east...
In crystalline basement regions of Africa, shallow weathered aquifers provide vital water resources for rural communities. To quantify evidence of the behaviour of these shallow aquifers, groundwater...
Soil water movement was studied within fields on two different soil types, a red clay soil and a duplex soil of sand over clay, at the Romwe Catchment in southern Zimbabwe. Each study site comprised t...

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