New answers tagged topography
Along with the above mentioned sources, Land Information Ontario data is available, but I can't speak for its accuracy - http://www.ontario.ca/environment-and-energy/land-information-ontario. What you probably want is featured on geogratis.
You can also look at geogratis, which is a Canadian repository for all sorts of data http://geogratis.gc.ca/geogratis/MostPopular?lang=en this link will guide you to data related to topographic data. Geobase as a good collection of administrative boundaries, such as Municipalities http://www.geobase.ca/geobase/en/data/admin/index.html
For a nice set of topographic data for Ontario, there is a fun interactive map which allows you to: Select various areas and zoom in at a high magnification Enable a variety of active layers (such as contour lines, roads, water polygons, conservation areas and so on) Download the selected areas into a number of formats (shp, AutoCAD DWG, DXF etc) You ...
From a theoretical point of view depression filling only has one solution, although there can be numerous ways of coming to that solution, which is why there are so many different depression filling algorithms. Therefore, theoretically a DEM that is filled with either the Planchon and Darboux or the Wang and Liu, or any of the other depression filling ...
I will attempt to answer my own question - dun dun dun. I used SAGA GIS to examine the differences in filled watersheds using their Planchon and Darboux (PD) based filling tool ( and their Wang and Liu (WL) based filling tool for 6 different watersheds. (Here I only show case two sets of results - they were similar across all 6 watersheds) I say "based", ...
The ETOPO1 dataset merges topography and bathymetry in one elevation model. Quoting the home page: ETOPO1 is a 1 arc-minute global relief model of Earth's surface that integrates land topography and ocean bathymetry. It was built from numerous global and regional data sets, and is available in "Ice Surface" (top of Antarctic and Greenland ice ...
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