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Questions tagged [antarctica]

For questions which are specific to the region/continent of Antarctica.

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2 votes
0 answers
230 views

Create circular grid line labels (labels around the map's border) for a South Polar Stereo projection

I'm using the South Polar Stereographic projection to create a map of Antarctica. I've been able to create the gridlines using Cartopy, but the labels for the gridlines are not circular around the map,...
Rony Golder's user avatar
2 votes
1 answer
96 views

Shapefile with a pole inside

I am trying to create a shapefile with an inner and an outer ring. When one of the pole is located inside the polygon, the inner ring is not recognized Here is a simple example reproducing my problem ...
Vincent Poitras's user avatar
0 votes
3 answers
2k views

Adding Lat/Long Coordinates to Frame in Print Layout

I am still learning how to use QGIS: I am making a map of a location in Antarctica, so I am using WGS 84/Antarctic Polar Stereographic coordinates (EPSG:3031). I have put the map into a print layout ...
shamonah's user avatar
5 votes
1 answer
349 views

Grid of meridians and parallels from South Pole in QGIS print composer

In QGIS 3.16, I'm preparing a map of the emperor penguin colonies in the Antarctica, using the data from the Quantarctica project, but I'm facing a couple of issues with the grid created in the print ...
jpinilla's user avatar
  • 3,230
4 votes
4 answers
1k views

Imported CSV file with x/y coordinates shown on Null Island in QGIS

Basically, I have a CSV table with lat/long coordinates that I am trying to upload onto a map. However, when I "add text delimited layer" it puts the spots in the completely wrong location. ...
user15108227's user avatar
11 votes
1 answer
307 views

How to do a Lee’s Tetrahedral Conformal Projection of Antarctic/South pole on QGIS?

I want to do map of Antarctic using the Lee's Tetrahedral conformal map projection as the image below using QGIS version 3.4. Is it possible to make a custom CRS to do it? If yes, what's the ...
carolina passos's user avatar
1 vote
0 answers
137 views

Natural Earth land in GeoServer: line cut through Antarctica for EPSG 900913

I have created a GeoServer layer (GeoServer 2.15) that contains the 10m resolution Natural Earth land countour shapefile data (https://www.naturalearthdata.com/downloads/10m-physical-vectors/). But if ...
Jvg's user avatar
  • 143
1 vote
0 answers
35 views

'Faulty' Landsat-8 Images (Collection 1 Tier 2) for Antarctica? [closed]

Whilst working with the Landsat collections across Antarctica I have noticed that recent L8 images (from late 2017-present) appear to not be 'correct' in GEE. Images from this time period appear black ...
Rebecca Dell's user avatar
2 votes
0 answers
250 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. ...
Alexandre's user avatar
3 votes
1 answer
441 views

Equal area projection of Antarctica ?

I was looking for an equal area projection of Antarctica, but it seems that the Lambert Azimuthal Equal Area (https://epsg.io/3974 , also called 102020 by ESRI) is deprecated because it is not a "true"...
radouxju's user avatar
  • 49.7k
5 votes
0 answers
267 views

Showing Polar coordinate grid?

I've found some maps for Antarctica https://nga.maps.arcgis.com/home/webmap/viewer.html How can I show polar coordinate grid for it? I've got the grid source code in grid_wgs.js (I use OpenSeaMap ...
Sam Zadworny's user avatar
0 votes
1 answer
687 views

Tiled Web Map; what tile provider offer antarctic map tiles?

General Idea: I plot Sentinel-2 and Sentinel-3 images on a web map in a Jupyter Notebook using ipyleaflet. This works perfectly fine with the default Mercator projection. For images at high latitudes ...
fvivian's user avatar
3 votes
0 answers
867 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....
user2821's user avatar
  • 398
5 votes
1 answer
642 views

QGIS and the South Pole: bug or feature?

I am trying to work with some data from Antarctica in QGIS. I have defined this new projection: +proj=laea +lat_0=-90 +lon_0=0 +datum=WGS84 +units=m +no_defs And started adding a few vector layers. ...
Luís de Sousa's user avatar
12 votes
3 answers
3k views

What coordinate system is this netCDF raster?

I obtained a netCDF raster file, but I couldn't get any metadata to get the name of the coordinate system the raster has been built on. The raster itself doesn't have any coordinate system embedded. I ...
multigoodverse's user avatar
11 votes
1 answer
649 views

Point sampling along a pole-wrapping coastline with PostGIS

I am working on a task that requires me to get sample points every 1000 km along coastlines, and have run into a problem with Antarctica. From what I can tell, it seems to be an issue with the use of ...
jczaplew's user avatar
  • 1,198
8 votes
2 answers
359 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 ...
9 votes
2 answers
6k views

What determines "west" in Antarctica?

Hopefully this isn't so far afield as to get banned - apologies in advance to those who think it doesn't belong. This article discusses a region of Antarctica which is described as "West Antarctica". ...
Llaves's user avatar
  • 5,973
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 ...
Sean's user avatar
  • 320