This is my first post in this forum. Therefore please forgive me if I don't use the right terms here. To make my problem easier to understand I have attached some images.
What I want to do, is as follows:
I downloaded Landsat GeoTiffs from this website:
The problem is that these images are in polar stereographic projection, but I need them in geographic (?) projection. Meaning north on top and everything in degrees instead of meters.
The only tool I've found so far that can do this conversion is ERDAS Viewfinder. I just change the save properties so that ERDAS converts it to an image with geographic projection (see screen).
Problem: For one out of about a hundred Antarctica tiles this process takes about 10 (!) hours and the resulting file is about 5GB large while the original file had about 1GB. As if this wouldn't be bad enough: The file can't be opened with anything. Not Photoshop, nor IrfanView or GlobeMapper. Not even ERDAS can open its own file. It just gives me the error message: File is larger than 2G. Size will be reported as 2G.
Are there any other ways to get the GeoTiff's projection from the source mentioned above?
If someone wants to reproduce the problem:
- Go to the wbsite mentioned above
- Select "Natural-Color, Pan-Sharpened LIMA" and download the file with the "R" of Rothera in it by clicking into it.
- Unpack the file
- Open it in ERDAS Viewfinder
- Save the file in ERDAS Viewfinder and make the settings as decribed
- Wait forever... At least 9 hours with a current computer.
Thank you very much for your help!