A Cheap, Quick and Safe Way of Surveying Glaciers
The use of a 35 mm or similar camera set up over a theodolite is described for surveying mountain and polar glaciers where conditions do not allow for extensive detailed surveying or the use of heavy phototheodolites. Though used initially by Spender and Wright in the 1930s on Mount Everest and in G...
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Online Access: | http://dx.doi.org/10.1111/0031-868x.00004 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F0031-868X.00004 https://onlinelibrary.wiley.com/doi/pdf/10.1111/0031-868X.00004 |
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crwiley:10.1111/0031-868x.00004 2024-06-02T08:01:32+00:00 A Cheap, Quick and Safe Way of Surveying Glaciers Wright, J.W. Dahl, P. A. 1995 http://dx.doi.org/10.1111/0031-868x.00004 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F0031-868X.00004 https://onlinelibrary.wiley.com/doi/pdf/10.1111/0031-868X.00004 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor The Photogrammetric Record volume 15, issue 85, page 43-50 ISSN 0031-868X 1477-9730 journal-article 1995 crwiley https://doi.org/10.1111/0031-868x.00004 2024-05-03T11:48:05Z The use of a 35 mm or similar camera set up over a theodolite is described for surveying mountain and polar glaciers where conditions do not allow for extensive detailed surveying or the use of heavy phototheodolites. Though used initially by Spender and Wright in the 1930s on Mount Everest and in Greenland and Arctic Canada, but apparently not by others since then, it was again tried out by Wright in Iceland in 1992. Modern analytical techniques have shown that heights accurate to within 2 m can be obtained from these photographs at distances up to 5 km. In addition, five times as many points can be identified and intersected in the laboratory from the photographs as was possible using sketches in difficult field conditions. Some reasons are suggested for the lack of use of this technique by others. The potential of existing survey photographs taken in Arctic Canada for large scale surveys of high polar glaciers in 1938 is described, with the hope that glaciologists and photogrammetrists might undertake their analysis. Article in Journal/Newspaper Arctic glacier* Greenland Iceland Wiley Online Library Arctic Canada Greenland The Photogrammetric Record 15 85 43 50 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
The use of a 35 mm or similar camera set up over a theodolite is described for surveying mountain and polar glaciers where conditions do not allow for extensive detailed surveying or the use of heavy phototheodolites. Though used initially by Spender and Wright in the 1930s on Mount Everest and in Greenland and Arctic Canada, but apparently not by others since then, it was again tried out by Wright in Iceland in 1992. Modern analytical techniques have shown that heights accurate to within 2 m can be obtained from these photographs at distances up to 5 km. In addition, five times as many points can be identified and intersected in the laboratory from the photographs as was possible using sketches in difficult field conditions. Some reasons are suggested for the lack of use of this technique by others. The potential of existing survey photographs taken in Arctic Canada for large scale surveys of high polar glaciers in 1938 is described, with the hope that glaciologists and photogrammetrists might undertake their analysis. |
format |
Article in Journal/Newspaper |
author |
Wright, J.W. Dahl, P. A. |
spellingShingle |
Wright, J.W. Dahl, P. A. A Cheap, Quick and Safe Way of Surveying Glaciers |
author_facet |
Wright, J.W. Dahl, P. A. |
author_sort |
Wright, J.W. |
title |
A Cheap, Quick and Safe Way of Surveying Glaciers |
title_short |
A Cheap, Quick and Safe Way of Surveying Glaciers |
title_full |
A Cheap, Quick and Safe Way of Surveying Glaciers |
title_fullStr |
A Cheap, Quick and Safe Way of Surveying Glaciers |
title_full_unstemmed |
A Cheap, Quick and Safe Way of Surveying Glaciers |
title_sort |
cheap, quick and safe way of surveying glaciers |
publisher |
Wiley |
publishDate |
1995 |
url |
http://dx.doi.org/10.1111/0031-868x.00004 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F0031-868X.00004 https://onlinelibrary.wiley.com/doi/pdf/10.1111/0031-868X.00004 |
geographic |
Arctic Canada Greenland |
geographic_facet |
Arctic Canada Greenland |
genre |
Arctic glacier* Greenland Iceland |
genre_facet |
Arctic glacier* Greenland Iceland |
op_source |
The Photogrammetric Record volume 15, issue 85, page 43-50 ISSN 0031-868X 1477-9730 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/0031-868x.00004 |
container_title |
The Photogrammetric Record |
container_volume |
15 |
container_issue |
85 |
container_start_page |
43 |
op_container_end_page |
50 |
_version_ |
1800745933817774080 |