A Half-Century of Change in Arctic Alaskan Shrubs: A Photographic-Based Assessment
In this study, the locations of 193 old aerial photographs of northern Alaskan landscapes were rephotographed and assessed for changes in vegetation. The original photographs were taken over northern Alaska between 1948 and 1951, and the new photographs were taken between 1999 and 2003. The region c...
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Arctic Data Center
2016
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dataone:urn:uuid:7d752b4b-37df-4be1-b63e-da8e3063276a 2024-10-03T18:45:51+00:00 A Half-Century of Change in Arctic Alaskan Shrubs: A Photographic-Based Assessment ENVELOPE(-165.0,-145.0,70.0,68.0) BEGINDATE: 1948-01-01T01:01:00Z ENDDATE: 2003-12-31T23:59:59Z 2016-01-19T00:00:00Z https://search.dataone.org/view/urn:uuid:7d752b4b-37df-4be1-b63e-da8e3063276a unknown Arctic Data Center Photography Arctic Dataset 2016 dataone:urn:node:ARCTIC 2024-10-03T18:07:20Z In this study, the locations of 193 old aerial photographs of northern Alaskan landscapes were rephotographed and assessed for changes in vegetation. The original photographs were taken over northern Alaska between 1948 and 1951, and the new photographs were taken between 1999 and 2003. The region covered by the original and repeat photographs stretches from the southern extent of the Brooks Range in the south to the Coastal Plain in the north, and from the Chukchi Sea in the west to the Canning River in the east. The original photographs were taken by the U.S. military as part of geologic reconnaissance and exploration, and the method used to acquire them was to fly both sides of a river valley while photographing the river and the facing valley slopes. Of the several thousand original photographs, only a fraction were repeated for the purpose of assessing vegetation change. Repeat photographs were selected for geographic coverage and to produce the greatest likelihood of detecting vegetation change. The original and repeat photographs were then scanned and stored in TIFF format. Individual image file sizes range from 5 to 60 MB each, and the total file size for the data set is approximately 11 GB. The images should not be published without the consent of the investigators. Dataset Arctic Brooks Range Chukchi Chukchi Sea Alaska Arctic Data Center (via DataONE) Arctic Chukchi Sea ENVELOPE(-165.0,-145.0,70.0,68.0) |
institution |
Open Polar |
collection |
Arctic Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:ARCTIC |
language |
unknown |
topic |
Photography Arctic |
spellingShingle |
Photography Arctic A Half-Century of Change in Arctic Alaskan Shrubs: A Photographic-Based Assessment |
topic_facet |
Photography Arctic |
description |
In this study, the locations of 193 old aerial photographs of northern Alaskan landscapes were rephotographed and assessed for changes in vegetation. The original photographs were taken over northern Alaska between 1948 and 1951, and the new photographs were taken between 1999 and 2003. The region covered by the original and repeat photographs stretches from the southern extent of the Brooks Range in the south to the Coastal Plain in the north, and from the Chukchi Sea in the west to the Canning River in the east. The original photographs were taken by the U.S. military as part of geologic reconnaissance and exploration, and the method used to acquire them was to fly both sides of a river valley while photographing the river and the facing valley slopes. Of the several thousand original photographs, only a fraction were repeated for the purpose of assessing vegetation change. Repeat photographs were selected for geographic coverage and to produce the greatest likelihood of detecting vegetation change. The original and repeat photographs were then scanned and stored in TIFF format. Individual image file sizes range from 5 to 60 MB each, and the total file size for the data set is approximately 11 GB. The images should not be published without the consent of the investigators. |
format |
Dataset |
title |
A Half-Century of Change in Arctic Alaskan Shrubs: A Photographic-Based Assessment |
title_short |
A Half-Century of Change in Arctic Alaskan Shrubs: A Photographic-Based Assessment |
title_full |
A Half-Century of Change in Arctic Alaskan Shrubs: A Photographic-Based Assessment |
title_fullStr |
A Half-Century of Change in Arctic Alaskan Shrubs: A Photographic-Based Assessment |
title_full_unstemmed |
A Half-Century of Change in Arctic Alaskan Shrubs: A Photographic-Based Assessment |
title_sort |
half-century of change in arctic alaskan shrubs: a photographic-based assessment |
publisher |
Arctic Data Center |
publishDate |
2016 |
url |
https://search.dataone.org/view/urn:uuid:7d752b4b-37df-4be1-b63e-da8e3063276a |
op_coverage |
ENVELOPE(-165.0,-145.0,70.0,68.0) BEGINDATE: 1948-01-01T01:01:00Z ENDDATE: 2003-12-31T23:59:59Z |
long_lat |
ENVELOPE(-165.0,-145.0,70.0,68.0) |
geographic |
Arctic Chukchi Sea |
geographic_facet |
Arctic Chukchi Sea |
genre |
Arctic Brooks Range Chukchi Chukchi Sea Alaska |
genre_facet |
Arctic Brooks Range Chukchi Chukchi Sea Alaska |
_version_ |
1811921361332862976 |