Createspace Independent Publishing Platform
An Introduction to Airborne and Remote Sensing Methods for Geophysical Exploration
$29.59
Createspace Independent Publishing Platform
Development of Airborne Remote Sensing Methods for Surveys of Pacific Walrus
Product Code:
9781514725153
ISBN13:
9781514725153
Condition:
New
$18.37
Development of Airborne Remote Sensing Methods for Surveys of Pacific Walrus
$18.37
In April 2003, we conducted an operational test of an airborne multispectral scanner (AMS) over pack ice in the Bering Sea to evaluate the potential of this system as a survey tool for Pacific walruses. We scanned a total of 28,875 km2 of sea ice habitat at a spatial resolution of 4 m and collected high resolution photographs from a subset of the thermally detected walrus groups. We found a significant positive relationship between walrus group size and the amount of heat measured by the AMS and used this relationship to estimate total walrus numbers in the survey area. The number of walruses hauled out onto sea ice in our study area was estimated at 4,785 animals with a 95% confidence interval of 2,499-7,111.
| Author: U. S. Department of the Interior |
| Publisher: Createspace Independent Publishing Platform |
| Publication Date: Jun 26, 2015 |
| Number of Pages: 32 pages |
| Binding: Paperback or Softback |
| ISBN-10: 1514725150 |
| ISBN-13: 9781514725153 |
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