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 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The images should not be published without the consent of the investigators.
- download: NSF Arctic Data Center
|Subscribe||Subscribe to receive email when new or updated data is available.|
|ISO Topic Categories||
|GCMD Science Keywords|
|Begin datetime||1948-01-01 01:01:00|
|End datetime||2003-12-31 23:59:59|
Map data from IBCSO, IBCAO, and Global Topography.
Maximum (North) Latitude:
Minimum (South) Latitude:
Minimum (West) Longitude: -165.00, Maximum (East) Longitude: -145.00
Additional contact information
- author: Matthew Sturm <email@example.com>
- author: Charles H. Racine <firstname.lastname@example.org>
- originator: Matthew Sturm <email@example.com>
CitationExample citation following ESIP guidelines:
Sturm, M., Racine, C. 2011. A Half-Century of Change in Arctic Alaskan Shrubs: A Photographic-Based Assessment. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D6J10187. Accessed 02 Jul 2020.
Today's date is shown: please replace with the date of your most recent access.
Additional citation styles
The citation text below is from the DataCite Content Resolver service and may take a few seconds to load. The styles and locales are obtained from CrossCite, which also provides a citation formatter. See ReFindit for another alternative. Formatting is not perfect: please verify and edit before use. Today's date is shown: please replace with the date of your most recent access.
Note that your browser may not display the above metadata links, but automatically save them as files in a folder such as "