搜索结果: 1-8 共查到“水文地理学 Method”相关记录8条 . 查询时间(0.218 秒)
A Method for Extracting Stream Channel Flow Paths from LiDAR Point Cloud Data
Streams Channels Delineation
2015/1/9
Traditional methods of delineating stream channel networks use gridded raster elevation data. Direct use of LiDAR point clouds, without first creating a raster or grid, could improve efficiency and ac...
A Method for Quantifying Stream Network Topology over Large Geographic Extents
stream network topology upstream cell count
2015/1/8
An understanding of stream network topology is necessary for a landscape-level perspective of stream hydrology and ecology. We present a method for quantifying stream network topology that overcomes c...
Erosion Risk Assessment using an Empirical Model of Pacific South West Inter Agency Committee Method for Zargeh Watershed, Iran
MPSIAC Erosion Sediment Yield Iran
2015/1/6
Watershed degradation due to soil erosion and sedimentation is one of the major environmental problems in Iran. In addressing the issue, a study on the validity of an empirical model of Pacific South ...
AN ALTERNATIVE METHOD TO EVALUATE AQUIFER PERMEABILITY
AQUIFER PERMEABILITY geophysical logs porosity aquifers
2009/10/13
New techniques are described to evaluate complex dual porosity aquifers using geophysical logs. Alternatives are presented to characterize highly heterogeneous rocks and identify the presence of prima...
Evaluation of rainfall infiltration characteristics in a volcanic ash soil by time domain reflectometry method
Time domain reflectometry rainfall intensity volcanic-ash soil
2009/6/8
Time domain reflectometry (TDR) was used to monitor soil water conditions and to evaluate infiltration characteristics associated with rainfall into a volcanic-ash soil (Hydric Hapludand) with a low ...
A differentiation method for separating a mixture of suspended particle size distributions
suspended particle size distributions lognormal distribution hydrodynamic parameter
2009/5/26
A simple method is proposed to partition a mixture of two populations in suspended particle size data. The method, termed here "the differentiation method" is based on the function of the lognormal di...
An empirical method for estimating future flood risks for flood warnings
flood risks flood warnings
2009/5/18
Since medium and long-term precipitation forecasts are still not reliable enough, rough estimates of the degree of the extremity of forthcoming flood events that might occur in the course of dangerou...
From near-surface to root-zone soil moisture using an exponential filter：an assessment of the method based on in-situ observations and model simulations
soil moisture exponential filter
2009/5/6
A long term data acquisition effort of profile soil moisture is under way in southwestern France at 13 automated weather stations. This ground network was developed in order to validate remote sensing...
