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by Christoph Hormann
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Landsat/Sentinel-2 mosaics of the Subantarctic Islands

Sentinel-2 mosaic of Tristan da Cunha Landsat/Sentinel-2 mosaic of Gough Island Landsat mosaic of Bouvet Island Landsat/Sentinel-2 mosaic of Heard Island and the McDonald Islands Landsat/Sentinel-2 mosaic of the Kerguelen Islands Landsat/Sentinel-2 mosaic of the Crozet Islands Landsat/Sentinel-2 mosaic of the Prince Edward Islands
Sentinel-2 mosaic of the Auckland Islands Landsat/Sentinel-2 mosaic of the Campbell Islands Landsat mosaic of the Antipodes Islands Landsat mosaic of the Bounty Islands Landsat mosaic of the Snares Islands
Sentinel-2 mosaic of Macquarie Island
Landsat/Sentinel-2 mosaic of the South Sandwich Islands

The satellite image mosaics featured here show the Subantarctic Islands located around the Antarctic as they appear during summer with a minimum of snow and a maximum of vegetation.

These mosaics can be considered a higher resolution supplement to the Green Marble and similarly it represents the surface color with compensation for the effects of the atmosphere.

The mosaics features seamless coverage of the ocean using the Green Marble mosaic for areas further from the coast without Landsat/Sentinel-2 coverage.

Source data is almost exclusively Landsat 8 imagery from 2013 to 2018 and Copernicus Sentinel-2 imagery from 2016 to 2018 with only very few small areas where this has been supplemented by older Landsat 7 imagery.

Here the details on the individual mosaics:

mosaic data source resolution size
South Georgia LS/S2 separate page for Landsat, Sentinel-2
Falkland Islands Sentinel-2 separate page
Kerguelen Islands LS/S2 10m 19500×19500
Heard Island and McDonald Islands LS/S2 10m 10000×4000
Crozet Islands LS/S2 10m 19000×8000
Prince Edward Islands LS/S2 10m 4000×5200
Bouvet Island Landsat 15m 2333×1666
South Sandwich Islands LS/S2 10m 14500×39000
Tristan da Cunha Sentinel-2 10m 7000×5600
Gough Island LS/S2 10m 5000×5000
Macquarie Island Sentinel-2 10m 3000×9400
Auckland Islands Sentinel-2 10m 5000×6000
Campbell Islands LS/S2 10m 4400×3000
Antipodes Islands Landsat 15m 1500×1200
Snares Islands Landsat 15m 2000×1500
Bounty Islands Landsat 15m 1000×800
Amsterdam Island and Saint Paul Island Landsat 15m 3667×9001

In addition to the visual color mosaics there are also vegetation data sets available based on the same Sentinel-2 and Landsat imagery depicting the maximum amount of vegetation at every point - separated into woody and herbaceous vegetation.

Key properties

  • Visible color mosaics of the Subantarctic Islands
  • 10m or 15m base resolution
  • Based primarily on Landsat and Sentinel-2 imagery from 2013-2018.
  • Ocean color further away from the coast based on Green Marble
  • Shows atmosphere compensated surface color, available either as linear surface reflectance values or tone mapped for direct display
  • Assembled in UTM projection, can be made available in other projections.

Sample gallery

Vegetation map of the Kerguelen Sentinel-2 mosaic of the Kerguelen Islands sample: Port-aux-Français Sentinel-2 mosaic of the Kerguelen Islands sample: Western side Cook ice cap Sentinel-2 mosaic of the Kerguelen Islands sample: southern coast Landsat/Sentinel-2 mosaic of the South Sandwich Islands sample: Montagu Island Landsat/Sentinel-2 mosaic of the South Sandwich Islands sample: Thule Island Sentinel-2 mosaic of the Auckland Islands sample: North End Auckland Islands Sentinel-2 mosaic of Macquarie Island sample: South End Macquarie Island Sentinel-2 mosaic of Tristan da Cunha sample: Edinburgh of the Seven Seas Landsat/Sentinel-2 mosaic of Heard Island and the McDonald Islands sample: South Coast Hear Island Landsat/Sentinel-2 mosaic of Heard Island and the McDonald Islands sample: The Spit Landsat/Sentinel-2 mosaic of the Crozet Islands sample: Base Alfred-Faure, Possession Island

If you are interested in using these Landsat/Sentinel-2 mosaics use the form below to describe your needs and i will get back to you.

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Todays featured image:

Autumn 2017 northeast of Yakutsk
Autumn 2017 northeast of Yakutsk
Sentinel-2 image of the southern slopes of the Verkhoyansk Range around the Tompo River northeast of Yakutsk in Autumn 2017 with fresh snow in the... [more]
Design and Content Copyright 2018 by Christoph Hormann
last updated Tue, 08 May 2018 15:08