Center for Spatial Information Science and Systems (CSISS)
CSISS Geospatial Web Services index

Raster_FlowAccumulationService

This service could be used to compute flow accumulation from a raster digital elevation model (DEM) using the SFD (Single Flow Direction, or D8) model or MFD (Multiple Flow Direction) model.

Operation:

flow_accumulation - Uses r.watershed module to compute flow accumulation. The moduel uses SFD method. Uses r.terraflow module to compute flow accumulation. The moduel uses MFD method.

Request Parameters:

sourceURL
URL of input elevation file
Default format: GeoTIFF
Model
Type of algorithm model
Parameter format: string
Options: SFD, MFD
Default: SFD
SFD: Single Flow Direction
MFD: Multiple Flow Direction
outputGeoTiffType
Type of output GeoTIFF file. The output Format Type is specified as GeoTIFF
Parameter format: string
Options: Byte, Int16, UInt16, UInt32, Int32, Float32, Float64, CInt16, CInt32, CFloat32, CFloat64

Response Parameters:

returnURL
URL of output flow accumulation file
returnFormat
Format of output flow accumulation file
Default: GeoTIFF

For further informations

ServiceLocation
WSDL
JavaInterface

See also GRASS command

r.watershed
r.terraflow


Copyright Center for Spatial Information Science and Systems (CSISS), 2002-2010
George Mason University (GMU), 4400 University Drive, MSN 6E1, Fairfax, VA 22030, USA

Any comments to:webmaster