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Evaluation of the Wetland Mapping Methods using Landsat ETM+ and SRTM Data
wetlands remote sensing mapping delineation automated methods semi-automated methods Limpopo river basin
2015/8/13
Overarching goal of this paper was to evaluate automated and semi-automated methods of mapping wetlands using Landsat ETM+ and SRTM data. Automated methods consisted of: (a) slope derived from SRTM, (...
Spatially Distributed Watershed Mapping and Modeling: GIS-based Storm Runoff and Hydrograph Analysis: (part 2)
Runoff Geographic Information System GIS curve number land-cover spatially distributed
2015/8/6
Advances in scientific knowledge and new techniques of remote sensing permit a better understanding of the physical land features governing hydrologic processes, and make possible efficient, large-sca...
A SHARED DATABASE OF UNDERGROUND UTILITY LINES FOR 3D MAPPING AND GIS APPLICATIONS
GIS relational database underground utility lines
2014/4/24
For the purpose of facility management it is very important to have detailed and up-to-date databases of underground utility lines,
but such data are not always available with adequate accuracy. Hen...
Mapping snow depth return levels: smooth spatial modeling versus station interpolation
Mapping snow depth return levels smooth spatial modeling
2010/12/22
For adequate risk management in mountainous countries, hazard maps for extreme snow events are needed. This requires the computation of spatial estimates of return levels. In this article we use recen...
Runoff is a difficult variable to map because the information from river
gauging stations only indicates average runoff from the catchment area
above the gauging point. A method of mapping runoff by...
Measurement and Mapping of Potential Evapotranspiration in a Small Mountainous Watershed
Measurement Mapping Potential Evapotranspiration Small Mountainous Watershed
2009/10/28
The potential evapotranspiration ETP can be estimated by using Brochet and
Gerbier's formula (1972), which is derived from Penman's equation
where m and n are tabulated coefficients depending on sea...
ELECTRONIC WATER TABLE CONTOUR MAPPING AND GROUNDWATER NITRATE INTERPOLATION AT A DAIRY FARM IN TEAGASC, JOHNSTOWN CASTLE, WEXFORD, IRELAND
ELECTRONIC WATER TABLE hydraulic conductivity CONTOUR MAPPING
2009/10/12
The objective of the present study was to construct electronic groundwater maps for the 60.5 ha dairy farm in the Teagasc Environment Research Centre at Johnstown Castle, Wexford, Ireland. Monitoring ...
On the role of the runoff coefficient in the mapping of rainfall to flood return periods
runoff coefficient rainfall flood return periods
2009/7/22
While the correspondence of rainfall return period TP and flood return period TQ is at the heart of the design storm procedure, their relationship is still poorly understood. The purpose of this pape...