What projection is this geoTIF and how do I convert it?
I am working with viewing weather data online and the website I use (University of Oklahoma) provides a link to the data displayed as a geoTIF, for research purposes. This is a direct link to the geoTIF that I am requesting help with.
I am trying to use the image in a Mapbox map, but there seems to be an issue with projection. I use GDAL tools (though I am a novice) and I can't even figure out what projection it is in to start with. When I use gdalinfo, I get the following result :
Warning 1: RowsPerStrip not defined ... assuming all one strip.
Raster dataset parameters:
Projection:
RasterCount: 1
RasterSize (7000,3500)
Using driver GeoTIFF
Image Structure Metadata:
0: COMPRESSION=DEFLATE
1: INTERLEAVE=BAND
Corner Coordinates:
Upper Left (-130, 55)
Lower Left (-130, 20)
Upper Right (-60, 55)
Lower Right (-60, 20)
Center (-95, 37.5)
Coordinate System is:
Band 1 :
DataType: Float32
ColorInterpretation: Gray
Description:
Size (7000,3500)
BlockSize (7000,3500)
NoDataValue: -999
Offset: 0
Scale: 1
I have been converting other geoTIF files for Mapbox use with the following command successfully :
gdalwarp -t_srs EPSG:3857 example.tif example-projected.tif
... The above code always works except with the file I am needing help with. I am very new with GDAL and though I have been trying it is difficult for me. What am I not doing right and how would I do this the correct way?
mapbox geospatial gdal mapbox-gl-js geotiff
asked Nov 16 '18 at 3:56
David David
73115
add a comment |
I am working with viewing weather data online and the website I use (University of Oklahoma) provides a link to the data displayed as a geoTIF, for research purposes. This is a direct link to the geoTIF that I am requesting help with.
I am trying to use the image in a Mapbox map, but there seems to be an issue with projection. I use GDAL tools (though I am a novice) and I can't even figure out what projection it is in to start with. When I use gdalinfo, I get the following result :
Warning 1: RowsPerStrip not defined ... assuming all one strip.
Raster dataset parameters:
Projection:
RasterCount: 1
RasterSize (7000,3500)
Using driver GeoTIFF
Image Structure Metadata:
0: COMPRESSION=DEFLATE
1: INTERLEAVE=BAND
Corner Coordinates:
Upper Left (-130, 55)
Lower Left (-130, 20)
Upper Right (-60, 55)
Lower Right (-60, 20)
Center (-95, 37.5)
Coordinate System is:
Band 1 :
DataType: Float32
ColorInterpretation: Gray
Description:
Size (7000,3500)
BlockSize (7000,3500)
NoDataValue: -999
Offset: 0
Scale: 1
I have been converting other geoTIF files for Mapbox use with the following command successfully :
gdalwarp -t_srs EPSG:3857 example.tif example-projected.tif
... The above code always works except with the file I am needing help with. I am very new with GDAL and though I have been trying it is difficult for me. What am I not doing right and how would I do this the correct way?
mapbox geospatial gdal mapbox-gl-js geotiff
asked Nov 16 '18 at 3:56
David David
73115
add a comment |
I am working with viewing weather data online and the website I use (University of Oklahoma) provides a link to the data displayed as a geoTIF, for research purposes. This is a direct link to the geoTIF that I am requesting help with.
I am trying to use the image in a Mapbox map, but there seems to be an issue with projection. I use GDAL tools (though I am a novice) and I can't even figure out what projection it is in to start with. When I use gdalinfo, I get the following result :
Warning 1: RowsPerStrip not defined ... assuming all one strip.
Raster dataset parameters:
Projection:
RasterCount: 1
RasterSize (7000,3500)
Using driver GeoTIFF
Image Structure Metadata:
0: COMPRESSION=DEFLATE
1: INTERLEAVE=BAND
Corner Coordinates:
Upper Left (-130, 55)
Lower Left (-130, 20)
Upper Right (-60, 55)
Lower Right (-60, 20)
Center (-95, 37.5)
Coordinate System is:
Band 1 :
DataType: Float32
ColorInterpretation: Gray
Description:
Size (7000,3500)
BlockSize (7000,3500)
NoDataValue: -999
Offset: 0
Scale: 1
I have been converting other geoTIF files for Mapbox use with the following command successfully :
gdalwarp -t_srs EPSG:3857 example.tif example-projected.tif
... The above code always works except with the file I am needing help with. I am very new with GDAL and though I have been trying it is difficult for me. What am I not doing right and how would I do this the correct way?
mapbox geospatial gdal mapbox-gl-js geotiff
asked Nov 16 '18 at 3:56
David David
73115
I am working with viewing weather data online and the website I use (University of Oklahoma) provides a link to the data displayed as a geoTIF, for research purposes. This is a direct link to the geoTIF that I am requesting help with.
I am trying to use the image in a Mapbox map, but there seems to be an issue with projection. I use GDAL tools (though I am a novice) and I can't even figure out what projection it is in to start with. When I use gdalinfo, I get the following result :
Warning 1: RowsPerStrip not defined ... assuming all one strip.
Raster dataset parameters:
Projection:
RasterCount: 1
RasterSize (7000,3500)
Using driver GeoTIFF
Image Structure Metadata:
0: COMPRESSION=DEFLATE
1: INTERLEAVE=BAND
Corner Coordinates:
Upper Left (-130, 55)
Lower Left (-130, 20)
Upper Right (-60, 55)
Lower Right (-60, 20)
Center (-95, 37.5)
Coordinate System is:
Band 1 :
DataType: Float32
ColorInterpretation: Gray
Description:
Size (7000,3500)
BlockSize (7000,3500)
NoDataValue: -999
Offset: 0
Scale: 1
I have been converting other geoTIF files for Mapbox use with the following command successfully :
gdalwarp -t_srs EPSG:3857 example.tif example-projected.tif
... The above code always works except with the file I am needing help with. I am very new with GDAL and though I have been trying it is difficult for me. What am I not doing right and how would I do this the correct way?
mapbox geospatial gdal mapbox-gl-js geotiff
mapbox geospatial gdal mapbox-gl-js geotiff
asked Nov 16 '18 at 3:56
David David
73115
asked Nov 16 '18 at 3:56
David David
73115
asked Nov 16 '18 at 3:56
David David
73115
asked Nov 16 '18 at 3:56
David David
73115
asked Nov 16 '18 at 3:56
David David
73115
73115
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Your geotiff has no embedded coordinate system associated although the corners are obviously geographic coordinates (unprojected). WGS84 is my guess.
My suggestion is defining a source coordinate system in your command [-s_srs srs_def] and see the result,
-s_srs EPSG:4326
If that doesn't work you'd better ask OU. They should know better.
answered Nov 16 '18 at 4:27
lusitanicalusitanica
703312
Would this command be something like you're telling me to do? I am trying to learn alot of things and this has been a weakness. Here is the code : "gdalwarp -s_srs EPSG:4326 -t_srs EPSG:3857 example.tif example-projected.tif" - it does not work that way. I just don't know enough about coordinate systems. When I upload the TIF to geotiff.io, their system projects it properly.
– David
Nov 16 '18 at 5:42
It is not an overwrite issue, so I went ahead and emailed OU. It's a shame this is not working yet. I will see what they say, if they email back.
– David
Nov 16 '18 at 6:45
For what it's worth, I downloaded the source code for their project and opened up a c++ source code file that deals with projecting the image from the data. I found "PROJECTION_LAEA", which looking online is the Lambert azimuthal equal-area projection. Might this help?
– David
Nov 16 '18 at 7:35
Well, that is odd. I will just wait on that email.
– David
Nov 16 '18 at 8:03
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53331213%2fwhat-projection-is-this-geotif-and-how-do-i-convert-it%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Your geotiff has no embedded coordinate system associated although the corners are obviously geographic coordinates (unprojected). WGS84 is my guess.
My suggestion is defining a source coordinate system in your command [-s_srs srs_def] and see the result,
-s_srs EPSG:4326
If that doesn't work you'd better ask OU. They should know better.
answered Nov 16 '18 at 4:27
lusitanicalusitanica
703312
Would this command be something like you're telling me to do? I am trying to learn alot of things and this has been a weakness. Here is the code : "gdalwarp -s_srs EPSG:4326 -t_srs EPSG:3857 example.tif example-projected.tif" - it does not work that way. I just don't know enough about coordinate systems. When I upload the TIF to geotiff.io, their system projects it properly.
– David
Nov 16 '18 at 5:42
It is not an overwrite issue, so I went ahead and emailed OU. It's a shame this is not working yet. I will see what they say, if they email back.
– David
Nov 16 '18 at 6:45
For what it's worth, I downloaded the source code for their project and opened up a c++ source code file that deals with projecting the image from the data. I found "PROJECTION_LAEA", which looking online is the Lambert azimuthal equal-area projection. Might this help?
– David
Nov 16 '18 at 7:35
Well, that is odd. I will just wait on that email.
– David
Nov 16 '18 at 8:03
add a comment |
Your geotiff has no embedded coordinate system associated although the corners are obviously geographic coordinates (unprojected). WGS84 is my guess.
My suggestion is defining a source coordinate system in your command [-s_srs srs_def] and see the result,
-s_srs EPSG:4326
If that doesn't work you'd better ask OU. They should know better.
answered Nov 16 '18 at 4:27
lusitanicalusitanica
703312
Would this command be something like you're telling me to do? I am trying to learn alot of things and this has been a weakness. Here is the code : "gdalwarp -s_srs EPSG:4326 -t_srs EPSG:3857 example.tif example-projected.tif" - it does not work that way. I just don't know enough about coordinate systems. When I upload the TIF to geotiff.io, their system projects it properly.
– David
Nov 16 '18 at 5:42
It is not an overwrite issue, so I went ahead and emailed OU. It's a shame this is not working yet. I will see what they say, if they email back.
– David
Nov 16 '18 at 6:45
For what it's worth, I downloaded the source code for their project and opened up a c++ source code file that deals with projecting the image from the data. I found "PROJECTION_LAEA", which looking online is the Lambert azimuthal equal-area projection. Might this help?
– David
Nov 16 '18 at 7:35
Well, that is odd. I will just wait on that email.
– David
Nov 16 '18 at 8:03
add a comment |
Your geotiff has no embedded coordinate system associated although the corners are obviously geographic coordinates (unprojected). WGS84 is my guess.
My suggestion is defining a source coordinate system in your command [-s_srs srs_def] and see the result,
-s_srs EPSG:4326
If that doesn't work you'd better ask OU. They should know better.
answered Nov 16 '18 at 4:27
lusitanicalusitanica
703312
Your geotiff has no embedded coordinate system associated although the corners are obviously geographic coordinates (unprojected). WGS84 is my guess.
My suggestion is defining a source coordinate system in your command [-s_srs srs_def] and see the result,
-s_srs EPSG:4326
If that doesn't work you'd better ask OU. They should know better.
answered Nov 16 '18 at 4:27
lusitanicalusitanica
703312
edited Nov 16 '18 at 8:33
answered Nov 16 '18 at 4:27
lusitanicalusitanica
703312
answered Nov 16 '18 at 4:27
lusitanicalusitanica
703312
answered Nov 16 '18 at 4:27
lusitanicalusitanica
703312
703312
Would this command be something like you're telling me to do? I am trying to learn alot of things and this has been a weakness. Here is the code : "gdalwarp -s_srs EPSG:4326 -t_srs EPSG:3857 example.tif example-projected.tif" - it does not work that way. I just don't know enough about coordinate systems. When I upload the TIF to geotiff.io, their system projects it properly.
– David
Nov 16 '18 at 5:42
It is not an overwrite issue, so I went ahead and emailed OU. It's a shame this is not working yet. I will see what they say, if they email back.
– David
Nov 16 '18 at 6:45
For what it's worth, I downloaded the source code for their project and opened up a c++ source code file that deals with projecting the image from the data. I found "PROJECTION_LAEA", which looking online is the Lambert azimuthal equal-area projection. Might this help?
– David
Nov 16 '18 at 7:35
Well, that is odd. I will just wait on that email.
– David
Nov 16 '18 at 8:03
add a comment |
Would this command be something like you're telling me to do? I am trying to learn alot of things and this has been a weakness. Here is the code : "gdalwarp -s_srs EPSG:4326 -t_srs EPSG:3857 example.tif example-projected.tif" - it does not work that way. I just don't know enough about coordinate systems. When I upload the TIF to geotiff.io, their system projects it properly.
– David
Nov 16 '18 at 5:42
It is not an overwrite issue, so I went ahead and emailed OU. It's a shame this is not working yet. I will see what they say, if they email back.
– David
Nov 16 '18 at 6:45
For what it's worth, I downloaded the source code for their project and opened up a c++ source code file that deals with projecting the image from the data. I found "PROJECTION_LAEA", which looking online is the Lambert azimuthal equal-area projection. Might this help?
– David
Nov 16 '18 at 7:35
Well, that is odd. I will just wait on that email.
– David
Nov 16 '18 at 8:03
Would this command be something like you're telling me to do? I am trying to learn alot of things and this has been a weakness. Here is the code : "gdalwarp -s_srs EPSG:4326 -t_srs EPSG:3857 example.tif example-projected.tif" - it does not work that way. I just don't know enough about coordinate systems. When I upload the TIF to geotiff.io, their system projects it properly.
– David
Nov 16 '18 at 5:42
Would this command be something like you're telling me to do? I am trying to learn alot of things and this has been a weakness. Here is the code : "gdalwarp -s_srs EPSG:4326 -t_srs EPSG:3857 example.tif example-projected.tif" - it does not work that way. I just don't know enough about coordinate systems. When I upload the TIF to geotiff.io, their system projects it properly.
– David
Nov 16 '18 at 5:42
It is not an overwrite issue, so I went ahead and emailed OU. It's a shame this is not working yet. I will see what they say, if they email back.
– David
Nov 16 '18 at 6:45
It is not an overwrite issue, so I went ahead and emailed OU. It's a shame this is not working yet. I will see what they say, if they email back.
– David
Nov 16 '18 at 6:45
For what it's worth, I downloaded the source code for their project and opened up a c++ source code file that deals with projecting the image from the data. I found "PROJECTION_LAEA", which looking online is the Lambert azimuthal equal-area projection. Might this help?
– David
Nov 16 '18 at 7:35
For what it's worth, I downloaded the source code for their project and opened up a c++ source code file that deals with projecting the image from the data. I found "PROJECTION_LAEA", which looking online is the Lambert azimuthal equal-area projection. Might this help?
– David
Nov 16 '18 at 7:35
Well, that is odd. I will just wait on that email.
– David
Nov 16 '18 at 8:03
Well, that is odd. I will just wait on that email.
– David
Nov 16 '18 at 8:03
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53331213%2fwhat-projection-is-this-geotif-and-how-do-i-convert-it%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
