In *GRASS Development Team, 2013. GRASS GIS 6.4.3svn Reference Manual*. Open Source Geospatial Foundation.

Paper abstract bibtex

Paper abstract bibtex

r.horizon - Horizon angle computation from a digital elevation model. Computes horizon angle height from a digital elevation model. The module has two different modes of operation: 1. Computes the entire horizon around a single point whose coordinates are given with the 'coord' option. The horizon height (in radians). 2. Computes one or more raster maps of the horizon height in a single direction. The input for this is the angle (in degrees), which is measured counterclockwise with east=0, north=90 etc. The output is the horizon height in radians.

@incollection{huldGRASSGISManual2013, title = {{{GRASS GIS}} Manual: R.Horizon}, booktitle = {{{GRASS}}\hspace{0.6em}{{Development}}\hspace{0.6em}{{Team}}, 2013. {{GRASS GIS}} 6.4.3svn {{Reference Manual}}}, author = {Huld, Thomas and Cebecauer, Tomas and Hofierka, Jaroslav and Suri, Marcel}, date = {2013}, publisher = {{Open Source Geospatial Foundation}}, location = {{USA}}, url = {http://grass.osgeo.org/grass64/manuals/r.horizon.html}, abstract = {r.horizon - Horizon angle computation from a digital elevation model. Computes horizon angle height from a digital elevation model. The module has two different modes of operation: 1. Computes the entire horizon around a single point whose coordinates are given with the 'coord' option. The horizon height (in radians). 2. Computes one or more raster maps of the horizon height in a single direction. The input for this is the angle (in degrees), which is measured counterclockwise with east=0, north=90 etc. The output is the horizon height in radians.}, keywords = {*imported-from-citeulike-INRMM,~INRMM-MiD:c-13366801,computational-science,free-scientific-software,free-software,gis,grass-gis,grass-gis-manual,gridded-data,spatial-spread} }

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