LIMSwiki

Posted on July 23, 2020 By Robert Payne

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Original file (SVG file, nominally 709 × 708 pixels, file size: 589 KB)

Summary

Description
English: Location Map of the Arctic Ocean
  • Projection: Azimuthal equidistant projection.
  • Area of interest:
  • N: 90.0° N
  • S: 50.0° N
  • W: -180.0° E
  • E: 180.0° E
  • Projection center:
  • NS: 90° N
  • WE: 0° E
  • GMT projection: -JE0.0/90.0/20.0c
  • GMT region: -R-180/180/50/90
  • Land, shoreline and borders: 1:50m Natural Earth Datasets
Date
Source Own work
Author Tentotwo
Other versions

Licensing

I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

Shell script for generating the map using GMT archive copy at the Wayback Machine

#!/bin/sh

# Set common options
PROJECTION=E0.0/90.0/20.0c
REGION=-180/180/50/90
FILENAME=arctic_ocean.ps

# Get Natural Earth datafiles
echo "Downloading datafiles from naturalearthdata.com"
wget -nv -nc \
 http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/50m/physical/50m-coastline.zip\
 http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/50m/physical/50m-land.zip\
 http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/50m/cultural/50m-admin-0-boundary-lines.zip
echo "...done\n"

echo "Inflating archives"
unzip 50m\*.zip
echo "...done\n"

echo "Converting shapefiles to GMT"
ogr2ogr -F GMT 50m_land.gmt 50m_land.shp
ogr2ogr -F GMT 50m_coastline.gmt 50m_coastline.shp
ogr2ogr -F GMT 50m_borders.gmt ne_50m_admin_0_boundary_lines_land.shp
echo "...done\n"

echo "Creating maps"
GMT psxy -m -J$PROJECTION -R$REGION -Bg15 --POLAR_CAP=none --BASEMAP_TYPE=plain --BASEMAP_AXES=WeS 50m_land.gmt -K -G254/254/233 > $FILENAME
GMT psxy -m -J$PROJECTION -R$REGION 50m_coastline.gmt -O -K -W9/120/171  >> $FILENAME
GMT psxy -m -J$PROJECTION -R$REGION 50m_borders.gmt -O -W100/100/100  >> $FILENAME
echo "...done\n"

echo "You can now open $FILENAME in Inkscape to clean up the file and save it as SVG. You should add an ocean coloured background and simplify the graticules using CTRL+L."

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author name string: Tentotwo
Wikimedia username: Tentotwo
URL: http://commons.wikimedia.org/wiki/User:Tentotwo

copyright status

copyrighted

copyright license

Creative Commons Attribution-ShareAlike 3.0 Unported

inception

27 January 2012

source of file

original creation by uploader

media type

image/svg+xml

checksum

f08eb1062b197c1f4bd8f3791fe31c66abe1561c

determination method or standard: SHA-1

data size

602,632 byte

height

708 pixel

width

709 pixel

File history

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Date/TimeThumbnailDimensionsUserComment
current11:54, 27 January 2012Thumbnail for version as of 11:54, 27 January 2012709 × 708 (589 KB)Tentotwo

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source: https://en.wikipedia.org/wiki/File:Arctic_Ocean_location_map.svg

    by Robert Payne

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