| Demonstration of an Enhanced Vertical Magnetic Gradient System for UXO |
Dec-2008 |
52 pages |
| Authors:
William E Doll; BATTELLE MEMORIAL INST OAK RIDGE TN
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 | It is estimated that unexploded ordnance (UXO) may contaminate 15 million acres or more within the United States alone. A need for improved technologies for mapping and detecting UXO has led to development of a sequence of airborne reconnaissance systems using electromagnetic and magnetic sensors. In 2002, Battelle staff (then at Oak Ridge National Laboratory [ORNL]) evaluated a prototype airborne vertical magnetic gradient system for mapping and detecting UXO. Airborne ... |
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| Airborne Hyperspectral Image Analysis for Grain Sorghum Yield Variability Mapping |
25 JUL 2005 |
4 pages |
| Authors:
Qian Du; Chenghai Yang; James H. Everitt; MISISSIPPI STATE UNIV MISSISSIPPI STATE DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
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| In this paper we will investigate airborne hyperspectral imagery for mapping grain sorghum yield variability as compared with yield monitor data. All the spectral bands are used for yield variability mapping in order to fully use the plenty spectral information in hyperspectral imagery. Yield variability mapping is achieved by estimating the fractional abundance image corresponding to the yield, where a pixel with high gray-scale value represents high yield in the ... |
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| Marine Mammal Aerial Surveys in Bahamas and Hawaii |
DEC 2003 |
12 pages |
| Authors:
Joseph R. Mobley Jr; MARINE MAMMAL RESEARCH CONSULTANTS LTD HONOLULU HI
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| Aerial surveys of marine mammals were performed as part of the Marine Mammal Monitoring on Navy Undersea Acoustic Ranges (3MR) program in three regions: a) Pacific Missile Range Facility (PMRF), Barking Sands, Kauai (BSURE and BARSTUR ranges; Jul 12-Nov 17, 2002); b) Bahamas (Northwest Providence Channel and AUTEC range; Jan 4-12, 2003); and c) main Hawaiian Islands (Feb 21- Apr 5, 2003). The mission was to identify species and record ... |
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| Aerial Surveys of Waterbirds in Alaska 1957-94: Population Trends and Observer Variability |
AUG 96 |
32 pages |
| Authors:
John I. Hodges; James G. King; Bruce Conant; Henry A. Hanson; FISH AND WILDLIFE SERVICE JUNEAU AK
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| Since 1957, major breeding populations of ducks in Alaska have been consistently monitored with strip-transect sampling from aircraft. By 1964, most other large waterbird species had been added to the survey. From 1957 to 1994, the population sizes of dabbling ducks generally remained stable. The populations of diving ducks and sea ducks except those of the merganser and the canvasback declined by 15-75% during 1976-94. The population sizes of eiders ... |
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| A Critical Review of the Aerial and Ground Surveys of Breeding Waterfowl in North America |
JUL 95 |
261 pages |
| Authors:
Graham W. Smith; FISH AND WILDLIFE SERVICE LAUREL MD OFFICE OF MIGRATORY BIRD MANAGEMENT
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| The U.S. Fish and Wildlife Service and the Canadian Wildlife Service in cooperation with others have conducted an annual survey of breeding waterfowl throughout central Canada, the north-central United States, and Alaska since 1955. The area comprises more than 50 strata of habitats. Ducks are counted from aerial transects, and the counts are adjusted upward to account for birds that are not observed by aerial crews. These adjustments, called visibility ... |
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| Development of Methods for Adjusting the USSR Astronomic-Geodetic Network |
23 MAY 1960 |
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| Authors:
JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA
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