搜索结果: 1-15 共查到“水文学 stream”相关记录67条 . 查询时间(0.208 秒)
A Method for Extracting Stream Channel Flow Paths from LiDAR Point Cloud Data
LiDAR Point Cloud Streams
2015/8/14
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...
Accounting for instream lakes when interpolating stream water chemistry observations
geostatistics kriging stream water chemistry
2015/8/14
Direct monitoring of stream water chemistry is an increasingly important tool for securing stream water quality and assessing stream ecological functioning as it relates to overall ecosystem health. S...
A Method for Quantifying Stream Network Topology over Large Geographic Extents
stream network topology upstream cell count landscape ecology digital elevation models
2015/8/14
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...
Annual changes in the chemical composition of stream water in small catchments with different land-use (Carpathian Foothills, Poland)
river water chemistry water pollution nutrient compounds flow tendency
2015/2/4
The aim of the study was to identify the factors that influence annual changes in the chemical composition of stream waters. The research area was located in the marginal zone of the Carpathian Foothi...
Provenance Study of Reedy Glacier and West Antarctic Ice Stream Tills
Antarctica Ice Stream Till Reedy Glacier
2015/1/16
InJanuary2007,26samplesoftillfrom6differentmorainesalongtheReedy
Glacier,EastAntarcticawerecollectedwiththegoalofdifferentiatingbetweenthese
samplesandtillcollectedfromthebaseoftheWhillans,Kamb,andB...
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...
Accounting for instream lakes when interpolating stream water chemistry observations
geostatistics kriging stream water chemistry
2015/1/9
Direct monitoring of stream water chemistry is an increasingly important tool for securing stream water quality and assessing stream ecological functioning as it relates to overall ecosystem health. S...
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...
Reading the bed morphology of a mountain stream:a geomorphometric study on high-resolution topographic data
bed morphology mountain stream geomorphometric study high-resolution topographic data
2010/3/5
High-resolution topographic data expand the potential of quantitative analysis of the earth surface, improving the interpretation of geomorphic processes. In particular, the morphologies of the channe...
RELATIONSHIP BETWEEN STREAM WATER TEMPERATURE AND AMBIENT AIR TEMPERATURE
RELATIONSHIP STREAM WATER TEMPERATURE AMBIENT AIR TEMPERATURE
2009/10/29
The water temperature of streams and rivers is required for various
practical purposes and is frequently obtained by calculating the heat
budget. This method is tedious and yields rather inaccurate ...
SNOWMELT-RUNOFF MODEL FOR STREAM FLOW FORECASTS
SNOWMELT-RUNOFF MODEL STREAM FLOW FORECASTS
2009/10/29
Following the development of rainfall-runoff models the attention of the
international hydrologic program is now increasingly focused on the snowmelt-
runoff. The present simple model is based on ta...
A Decade's Investigation of the Stability of Erodible Stream Beds
Decade's Investigation Stability Erodible Stream Beds
2009/10/29
This paper reviews work on the stability of a particulate stream bed to the erosive
attack of a flow with a free surface. Attention is given to the development of the
hydraulic, the potential-flow a...
Diurnal Variations in Electrical Conductivity of Water in a Small Stream
Diurnal Variations Electrical Conductivity of Water Small Stream
2009/10/28
Diurnal fluctuations in electrical conductivity of water have been observed in
a small streBm draining a basin 12 km2 in size. An attempt to explain the cause
of these variations is presented. The t...
Longitudinal Dispersion in a Stream Calculated by One Dimensional Numerical Model
Longitudinal Dispersion Dimensional Numerical Model
2009/10/28
A one-dimensional numerical model was used to simulate water stage and
dispersion of matter in a stream. The calculated results show quite good
agreement with field measurements.
Studies concerning...
Deep Groundwater Contribution to a Small Stream
Deep Groundwater Contribution Small Stream
2009/10/28
The contribution of surface water and groundwater were studied in a small
stream in the central part of Sweden using electrical conductivity of water as a
tracer. The portion of deep groundwater inc...