Taking Hydro-spatial Analysis To Another Dimension Using STEM, A
4D GIS
Author(s)
A.P. Murdock, H.H. Bottress & K.P. Morris
Abstract
Taking hydro-spatial analysis to another
dimension using STEM, a 4D CIS
A.P. Murdock\ H.H. Bottrelf & K.P. Morris^
' ABP Research & Consultancy, Ltd, UK
* Geokronos Ltd, UK
Abstract
A major barrier to hydrologists wishing to make use of Geographic Information
Systems for their analysis, is the lack of any real temporal functionality provided
by the leading software manufacturers. Hydrology far more than other
disciplines, relies heavily upon the interpretation of temporal variations in the
data, such as time-series of river discharges or fluxes of sediment. Currently,
time series data are mostly viewed in 2D, as graphs, showing changes in the
variable(s) of interest from the head of the catchment to the mouth. While this
allows some degree of visualisation of how variables are changing down the
catchment, it does not provide any indication of how they might be changing
spatially over time. This overview is only provided when these variables are
plotted on a map (3D). Current
Keywords
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