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Topic Subject: New sites for obtaining elevation data
posted 10-10-13 04:41 AM EDT (US)   
the national geophysical data center, and the NOAA website that i used for getting elevation data doesn't seem to be available anymore.
What are any other good places for obtaining elevation data for the ee editor?
Replies:
posted 10-12-13 05:55 AM EDT (US)     1 / 26  
I am sure they will be available again, once the government shutdown is over.

The US currently pays the bill for its structural deficits.
posted 12-02-13 04:55 PM EDT (US)     2 / 26  
If the website is not back up, what is the web address?
posted 12-03-13 04:13 PM EDT (US)     3 / 26  
posted 07-15-15 05:49 AM EDT (US)     4 / 26  
This new website link isn't available either.
posted 07-15-15 06:11 AM EDT (US)     5 / 26  
This link is totally fine. It tells you just that the site moved to http://maps.ngdc.noaa.gov/viewers/wcs-client/
posted 07-20-15 06:23 AM EDT (US)     6 / 26  
But I cannot find - ETOPO2 2-minute Global Relief Ver 2 on the drop down list. Do I need to download the software?
posted 12-30-15 08:11 AM EDT (US)     7 / 26  
Ok guys.

I'm on the website - http://maps.ngdc.noaa.gov/viewers/wcs-client/

Just some quick questions...

1. Choose a Layer - is that ETOPO1 (bedrock)?

2. Choose Output Format - ArcGIS ASCII Grid or?
posted 12-30-15 11:26 AM EDT (US)     8 / 26  
How do I make elevation maps using this site?

[This message has been edited by Cip_Ri (edited 12-30-2015 @ 11:27 AM).]

posted 02-15-16 06:34 AM EDT (US)     9 / 26  
Hey, after hours of trying to create elevation maps i found way how to do this:

1. Go to http://maps.ngdc.noaa.gov/viewers/wcs-client/
2. Choose your Coordinates
like this : http://postimg.org/image/k8yzv2o57/full/
3. in first box Layer Select "ETOPO1 (bedrock)"
4. second box choose output format select "GeoTIFF"
5. Download file
shoud be like that http://s7.postimg.org/tacohmsc9/New_Bitmap_Image.png


6. Now download or buy Global mapper program [Do not post links to pirated software - EEH moderator]

7. Open your downloaded file
8. Export elevation grid format BIL/BIP/BSQ File
9. Rename your exported file extension .bil to .dat
10. Open prevously downloaded file with paint or other picture editor rewrite number of rows and columns to .txt
11. rest you proboly know

[This message has been edited by Soty (edited 02-15-2016 @ 02:03 PM).]

posted 02-18-16 03:39 PM EDT (US)     10 / 26  
Thanks! Work perfect but can I do elevation maps with mountains?
If yes, how?
posted 02-21-16 06:05 PM EDT (US)     11 / 26  
How do I "Export elevation grid format BIL/BIP/BSQ File" and "Export elevation grid format BIL/BIP/BSQ File"?

I have the .tif file.
posted 02-22-16 07:14 AM EDT (US)     12 / 26  
In global mapper open the .tif file and click on File and select Export Elevation Grid Format, then you will know what to do next (all this if you have Global Mapper)

[This message has been edited by Cip_Ri (edited 02-22-2016 @ 07:15 AM).]

posted 12-15-18 10:14 AM EDT (US)     13 / 26  
I want to know about the same. My trial ran out for Global Mapper. Any new Links / Ways, people?
posted 12-30-18 06:39 AM EDT (US)     14 / 26  
Still no new Links ?

If anyone still has methods, what are people using ?
posted 03-31-19 06:50 AM EDT (US)     15 / 26  
Does anyone have any suggestions ?

If I figure out how to do it, I can make a bunch of requested Elevation Maps and upload them to EE Heaven Games if you like ?

[This message has been edited by bradley877 (edited 03-31-2019 @ 06:51 AM).]

posted 11-12-20 11:27 AM EDT (US)     16 / 26  
I've found a way to convert .tif files to .bil files via GDAL, a free to use software. This way we can easily generate maps for Empire Earth from elevation data. In the coming day(s) I'll post a guide on how to install and use GDAL to generate the maps.

[This message has been edited by Schwarzer Reiter (edited 11-12-2020 @ 02:03 PM).]

posted 11-26-20 05:39 AM EDT (US)     17 / 26  
I'd be delighted to see this new way of yours, Schwarzer Reiter.

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posted 12-12-20 07:57 PM EDT (US)     18 / 26  
How to generate EE maps with GDAL:

First we need to install Python and GDAL. An easy to follow guide for this can be found here:
https://sandbox.idre.ucla.edu/sandbox/tutorials/installing-gdal-for-windows

Once installed, we can proceed to acquire the elevation data from which we'll generate the maps. Go to:
https://maps.ngdc.noaa.gov/viewers/grid-extract/index.html

Select ETOPO1 (bedrock) as data set. Select the area which you want to use for your map with the rectangle tool. You can optimise your selection by altering the coordinates in the Area of Interest field. Once satisfied with your selection download the data. You'll receive a file called exportImage.

Feel free to rename it to something more fitting, e.g. europemap. Just make sure to not use any spaces in the name. Add the file extension .tif to the file. Our example file would thus be europemap.tif. Take note of the directory where the file is located, e.g. your downloads folder.

Open now the windows command line by going to the Start Menu -> Run ->Type in cmd and hit Enter.

Type in cd followed by the directory where the .tif file is located, e.g. your download folder. Thus you should type:

cd C:\Users\User\Downloads

and hit Enter. We're now in the directory with the .tif file. Now type:

gdal_translate europemap.tif europemap.bil

and hit Enter.

A bunch of different files will be generated in the folder. Locate the file with the .bil extension, e.g. europemap.bil. Copy and paste it into your Elevation Maps folder, e.g. at
C:\Sierra\Empire Earth\Data\Scenarios\Elevation Maps

Change the file extension from .bil to .dat

Now create a new text file in the Elevation Maps folder and give it the same name that your .dat file has, e.g. europemap.txt. Go back to take a look at our original .tif file and take note of its width and height in pixels. Write the values of width and height separated by one space into the .txt file and save it.

If everything was done correctly you should now be able to generate a map in EE's map editor from the .dat file we created.

[This message has been edited by Schwarzer Reiter (edited 12-16-2020 @ 06:49 PM).]

posted 12-13-20 00:08 AM EDT (US)     19 / 26  
Thanks man! Appreciated.

EDIT:
I tried it, but the elevation map appears like it has been folded cut into 2, and stitched back in the center, like this:

This is for Europe elevation image:
https://www.dropbox.com/s/3586zfwtdvbr3zd/europe.tif?dl=0

And the result in Empire Earth:
https://www.dropbox.com/s/eqjcvywmuz0j9mz/EE001.jpg?dl=0

I have tried this 3 times, same results.

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[This message has been edited by shieldwolf23 (edited 12-13-2020 @ 01:59 PM).]

posted 12-15-20 07:12 PM EDT (US)     20 / 26  
I downloaded your europe.tif file to test it and converted it with the command which I provided in the tutorial:

gdal_translate europe.tif europe.bil

For me it worked perfectly:
https://i.imgur.com/9Sh0Hhc.jpg

Do you get an error message when generating the map?
If it says that it cannot find proj.db, add the following path variable as its described in step 3 of the GDAL installation guide:

Variable name: PROJ_LIB
Variable value: C:\Program Files (x86)\GDAL\projlib

Maybe that will fix the map corruption. If it doesn't we'll have to figure out something else.

[This message has been edited by Schwarzer Reiter (edited 12-15-2020 @ 07:27 PM).]

posted 12-16-20 02:18 PM EDT (US)     21 / 26  
Thank you. So far I haven't had issues with the Gdal installation, but I'll try that.

EDIT:

Unfortunately, it's still like that for me.

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[This message has been edited by shieldwolf23 (edited 12-16-2020 @ 02:31 PM).]

posted 12-16-20 06:42 PM EDT (US)     22 / 26  
Well, I was able to sort of reproduce your map corruption by using this command:
gdal_translate -of GTiff europe.tif europe.bil

The result:
https://i.imgur.com/2NQbByV.jpg

So maybe using this command will actually produce a proper map for you?

Otherwise adding different options to the command might fix it. One I would give a try is this:
gdal_translate -strict europe.tif europe.bil

If neither of these work I'm at my wits' end. Then trial by error might be our best shot at fixing this.

Here is a list of all possible options for gdal_translate to experiment with:
https://gdal.org/programs/gdal_translate.html
posted 12-18-20 02:29 PM EDT (US)     23 / 26  
Thank you, much appreciated. Unfortunately, it is still the same. I'll try some of those commands, and post if any of them work on the corruption.

My Profile in Empire Earth || Latest Submissions Two Flags: Battle for Africa ||Jun 2023
My Profile in Age of Kings || Latest Submission Shadows of Betrayal || August 2012
AOK Designer of the Year 2012
Core Team Member & Site Co-Administrator,Empire Creations
posted 05-11-21 10:33 PM EDT (US)     24 / 26  
Just in case anyone else comes back here...

After some discussion on Discord I came to the same conclusion that you'd have to use GDAL to covert GeoTIFF files. The best options to use are:

gdal_translate -of ENVI mymap.tif mymap.dat

Note that here I'm specifying that GDAL automatically assign the DAT extension to the file name which EE prefers, no need to make a BIN and then change the extension yourself. The output from GDAL will also tell you the dimensions of the source GeoTIFF so you don't even have to bother opening it in an image viewer first to get this information. ENVI is a driver written by a company that sells software used for processing this kind of satellite data.

As an aside, I found exactly one website that outputs data already in the format required by EE:

http://www.diva-gis.org/gdata

The drawback is that you can't specify arbitrary regions to get data for, you have to pick by country. This website will give you an archive with three files. One of them is the GRI file that contains the elevation data. Change this extension to DAT and place it in your Data\Scenarios\Elevation Maps folder. Then make your TXT file in this same folder and make sure it has the exact same name as the DAT file. Your downloaded data will also have a GRD file; this can be opened with a text editor and will tell you the column & row values that you need to place in your TXT file.
posted 12-28-22 04:45 PM EDT (US)     25 / 26  
Hi team, not sure if this page is still alive!!

link for Python GDAL pictures have been removed, thus not easy to understand what to do - https://sandbox.idre.ucla.edu/sandbox/tutorials/installing-gdal-for-windows

can anyone please explain installation, or help with convert gridextract for me and leave in downloads page?

veni, vidi, vici
posted 05-13-23 05:59 AM EDT (US)     26 / 26  
Hello everyone,

Can elevation data be obtained using - https://www.ncei.noaa.gov/maps/grid-extract/

If yes, what settings?
- ETOPO_2022 (Bedrock; 15 arcseconds)?

Trying to obtain some of: England, France, Germany, for a WW1 scenario map. Need specific selection, not entire nations.

[This message has been edited by CyrodiilWarrior (edited 05-13-2023 @ 06:05 AM).]

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