2015年1月19日 · The screenshot shows the availability of ~3m (1/9 arc second) and 10m (1/3 arc second) resolution NED datasets throughout the USA. According to this map, you should have …

2015年5月20日 · This answer comes with a hefty health warning as you are essentially faking an improvement of resolution. There are a few approaches you could use to fake 10m DEM out of …

2021年1月4日 · I am trying to merge a 10m DEM with a 30m DEM (10m DEM is a sub area of the 30m DEM). Both DEMs have the same projection and nodata value. I create a .vrt file: …

But the tiles are very expensive once you start getting reasonably-sized areas. It has a horizontal resolution of 5m (I think there is a cheaper 10m resolution dataset), and a good vertical …

When processing 30m and 10m DEM data downloaded through the National Map Viewer from the National Elevation Dataset, we noticed horizontal and vertical striping not only in the produced …

2017年1月19日 · The USGS Global Data Explorer has version 2 of the 30 m ASTER Global DEM—apparently it's an improvement over version 1, but in my opinion it's still pretty crummy. …

2014年11月3日 · Long answer: even if you create a DEM from the contours, and then create contours at 10m interval, these really won't give you higher resolution data. It will give you …

2012年7月5日 · If you have access to the original lidar data, just interpolate the data to the desired resolution using the "Topo to Raster" tool in ArcGIS. If you only have access to the 1m …

2016年4月24日 · Can the 10m DEM be re-sampled perhaps to more accurately reflect the actual landscape? No, it can't. At least without inputting additional data. Should field surveys be …

2015年11月12日 · It seems that many different DEM resolutions (10m, 30m, 100m) could be created from a contour map (with, for instance 50m elevation changes marked), but of course …