Evaluation of the Potential Impacts of Launches of the USAF Atmospheric Interceptor Technology (AIT) Test Vehicle from the Kodiak Launch Complex (KLC) on Threatened and Endangered Species of Wildlife. Launch of AIT on 5 November 1998, 1632 Hrs. PST. Noise Monitoring Results

As part of the monitoring and mitigation obligation of the United States Air Force (USAF) atmospheric interceptor technology (ait) program Environmental Assessment, the USAF has conducted noise monitoring at the Kodiak Launch Complex, Kodiak Alaska. Two special status species, Steller's eider a...

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Bibliographic Details
Main Author: Stewart, Brent S.
Other Authors: HUBBS-SEA WORLD RESEARCH INST SAN DIEGOCA
Format: Text
Language:English
Published: 1998
Subjects:
Military Aircraft Operations
Ecology
Noise Pollution and Control
*ENVIRONMENTAL IMPACT
*ENDANGERED SPECIES
*WILDLIFE
*LAUNCH VEHICLES
*LAUNCHING SITES
MONITORING
WEIGHTING FUNCTIONS
MEASURING INSTRUMENTS
TEST VEHICLES
RECORDING SYSTEMS
NOISE POLLUTION
SOUND ANALYZERS
SEALS(MAMMALS)
ENVIRONMENTAL ASSESSMENT
*AIT(ATMOSPHERIC INTERCEPTOR TECHNOLOGY)
AIT PROGRAM
KODIAK(ALASKA)
LAUNCH NOISE
ASEL(A WEIGHTED SOUND LEVELS)
Kodiak
Alaska
Online Access:http://www.dtic.mil/docs/citations/ADA414326
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA414326
Description
Summary:As part of the monitoring and mitigation obligation of the United States Air Force (USAF) atmospheric interceptor technology (ait) program Environmental Assessment, the USAF has conducted noise monitoring at the Kodiak Launch Complex, Kodiak Alaska. Two special status species, Steller's eider and Steller Sea Lions; both federally listed as threatened and endangered species are of concern at the launch site. As a result, sound measuring and recording instruments were placed at three strategic locations. The frequency content of the noise event was mostly below 4 kHz with a substantial amount of energy at frequencies of 100 to 500 Hz. We have compared the measured A weighted sound levels (ASEL) and the A weighted maximum sound pressure levels (Lmax) to prelaunch calculations of the sound level contours. The measured sound levels were similar to the calculated values, within the limits of the predictions. The effects of the launch noise on the endangered species will be discussed.

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