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I am attempting to downscale a plethora of temperatures points over a high resolution DEM, and have hit several roadblocks. On further research, I have found a method in which to execute this task, but am stuck on how to execute within ArcMap. The weighted linear function I plan to use is as follows `y=Bx+C` Where y=predicted temperature, B and C are coefficients, and x is the DEM layer. There are also several complex weighted functions that determine the influence of the station on the regression model as the specific DEM cell gains altitude away from the station and proximity away from the coastline. I've also attached the thesis in which this mirrors, which goes more in depth on the equations in question. http://www.int-res.com/articles/cr2002/22/c022p099.pdf Any help would be great, thank you! Eric
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I took a map from a report, exported it as a PNG, and georeferenced it in arcmap. I'm trying to combine this with a geologic map polygon shape file so that only the geologic map that lies within the georeferenced map will be there. I've tried spatially joining the files, but it does not give the PNG as an option. I've also tried exporting the georeferenced map to save it as a different type of file, but it is a strange shape, and it gets made into a rectangle with grey filling in around the edges. I'm a new user, so I'm probably just missing something simple.
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- georeference
- spatial join
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I've downloaded topographic maps as GeoPDFs from the USGS, but I can't seem to upload them into ArcMap. Can you upload a GeoPDF into ArcMap? If not does anyone have any suggestions for other sources of topo/DEM data?