a noob's attempt to get elevation dataset

Hi all,
total beginner here. I'm hoping to get a elevation dataset for land and ocean floor onto 1 dataset. Ideally the data is in lat, long , alt form, but cartesian x,y,z is ok too. Maybe this can be my blog on how I well I fair in this task.
Looking at the IDE its one of the most daunting I've seen. 5 rows of buttons! It would take years to learn it all.
It's taken me 8 days to get approved on this forum so I only have 6 days left to scrap a bit of info on how to use Global Mapper before the trial runs out.
any advice on where to start?
total beginner here. I'm hoping to get a elevation dataset for land and ocean floor onto 1 dataset. Ideally the data is in lat, long , alt form, but cartesian x,y,z is ok too. Maybe this can be my blog on how I well I fair in this task.
Looking at the IDE its one of the most daunting I've seen. 5 rows of buttons! It would take years to learn it all.
It's taken me 8 days to get approved on this forum so I only have 6 days left to scrap a bit of info on how to use Global Mapper before the trial runs out.
any advice on where to start?
Tagged:
Best Answer
-
Ice Age Mark Global Mapper User Posts: 324
Howdy,
Try ETOPO1 bedrock (no ice) here: https://www.ngdc.noaa.gov/mgg/global/
or: GEBCO here: https://www.gebco.net/data_and_products/gridded_bathymetry_data/
or: the GMRT map tool: https://www.gmrt.org/GMRTMapTool/?
Big file time!
Good luck,
Mark
Answers
and srtm worldwide elevation data
the former uses glacier surface as elevation data!
the later doesn't have polar data.
I don't see any ocean floor data in the online sources.
so currently I've only got surface data not at glaciers. Anyone know where to get ocean floor data? Anyone know where to get sub glacier, rock \ soil height data?