Questions tagged [arctic]

Use this tag for Questions which are specific to the Arctic Region.

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gdalwarp from epsg:4326 to epsg:3413; error: Too many points failed to transform, unable to compute output bounds

GDAL ver     : GDAL 3.1.1, released 2020/06/22 Python         : 3.8.0 OS:               : windows 10 Input file       : 7200 x 3600 GeoTIF in epsg:4326 File link        : [https://www.dropbox.com/s/...
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  • 343
1 vote
0 answers
61 views

Mismatch between GPS points and data layer at high latitude

I am currently working on animal movement, based on GPS animal-attached device, at high latitude (north-east corner of Greenland, between 80° and 82° north). I observe an important mismatch between ...
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  • 11
-1 votes
1 answer
54 views

Display NSIDC arctic ice extent using PolarMap.js?

I'm a newbie in GIS. I've built a map of an expedition across the arctic region, but right now the trek is displayed across the ocean. To fix this, I've tried to integrate ice extent shapefiles from ...
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1 vote
0 answers
178 views

Using North Pole Orthogonal projection in QGIS?

I was looking for the North Pole Orthogonal projection in QGIS but I haven't found it yet. Is there any way to add this projection in CRS?
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2 votes
1 answer
106 views

Identifying coordinate system of historical map for Arctic Ocean?

I have a historical map (Arctic Ocean) with unknown CRS system. In order to compare it with my results, I have to merge them somehow. Could someone suggest the closest possible coordinate ...
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1 vote
1 answer
97 views

Applying xyz translation vector derived from IceSAT altimetry to an ArcticDEM strip?

Laser altimetry data from the NASA IceSAT spacecraft is used to compute x, y, and z offsets for ArcticDEM strip files. The values of these offsets are contained within the DEM metadata, but are not ...
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  • 1,604
2 votes
0 answers
150 views

QGIS - points at the North and South Pole disappear in the composer

I am using QGIS 3.4 to produce maps of the Arctic and Antarctic with weighted points from a csv file. I noticed that I lose the points at the North and South Pole when I add the map in the composer. ...
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1 vote
1 answer
568 views

Failed to load ArcGIS JS API polar satellite map

I am trying to draw satellite map with polar (Arctic) projection using ArcGIS JS API. Firstly I load default (Mercator) satellite map and it works fine. Then I change map spatialReference to polar the ...
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  • 139
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0 answers
43 views

Calculating area for polygons in arctic areas

We are evaluating areas of ecological importance in the arctic. The asset areas are of different sizes (up to 10 square kilometres) from latitudes 64 to 80 degrees north. The areas also vary in ...
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  • 3,131
2 votes
1 answer
77 views

Google maps slice arctic

I am developing earthquake visualization web-app for arctic zone using Google Maps JavaScript API. During the development I found Google Maps doesn't display map above approximately N85 degree, if you ...
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  • 139
3 votes
0 answers
754 views

How can I rotate a map layer in QGIS so that center of map always have north upwards?

I'm working in the polar regions and make maps in different scales. The convention is to show e.g. the Antarctic continent with the prime meridian upwards on the map and polar stereographic projection....
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  • 368
3 votes
1 answer
261 views

How to correct aspect values in a North Pole Stereographic projection?

I'm working on a DEM in the Arctic region (initially in a NAD83 coordinate system) and I projected it into a North Pole Stereographic Cartesian coordinate system to compute slope and aspect. Now, ...
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  • 375
0 votes
1 answer
95 views

Identifying coordinate system of Wetterzentrale maps?

I'm trying to georeference two maps from wetterzentrale in ArcGIS Desktop. In what coordinate system are those maps created?
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  • 9
3 votes
0 answers
698 views

Calculating size of area where data values exceed certain limit

I am using Python and Basemap to plot sea ice concentration within the Arctic region. I need to calculate the total area (square meters) where the sea ice concentration exceeds a certain limit (e.g. ...
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8 votes
2 answers
315 views

Choosing polar projection and tiling scheme for web mapping of polar regions?

I am looking for examples of web maps focusing on polar regions (Arctic or Antarctic) preferably using a polar projection. What polar projection and tiling scheme could be used for such web mapping ...
12 votes
7 answers
8k views

Intersection algorithm that correctly handles 180° meridian and poles?

Is there a well known intersection algorithm that correctly handles 180 meridian and poles? For example, let's say we have a list of latitude and longitude values that represent Antarctica. Let's ...
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