Accession Number:

ADA229173

Title:

Environmental Measurements in the Beaufort Sea, Spring 1986

Descriptive Note:

Technical rept.

Corporate Author:

WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB

Report Date:

1987-01-01

Pagination or Media Count:

163.0

Abstract:

This report presents environmental data taken in the spring of 1986 at ice camp APLIS in the Beaufort Sea, where research and test activities were conducted by many research organizations as part of ICEX 1-86. The environmental measurements were as part of the APL arctic environmental acoustics program. Weather data air temperature and pressure, wind velocity and direction were recorded hourly. The weather records show the high variability of arctic weather, with temperatures from -40 F to 10 F. During setup of the camp, before formal weather recording was begun, overnight temperatures as low as -45 F were observed. To study water properties, CTD casts were taken from the camp to a depth of 300 m once or twice each day. To detect biological scattering layers, acoustic pulses were transmitted downward through the water column. The underwater noise level during camp operations was monitored every day or so. The general background noise was difficult to relate to specific noise sources. The general stability of the floe and surroundings led to a decrease in the noise level compared with the fall of 1984.

Subject Categories:

  • Meteorology
  • Physical and Dynamic Oceanography
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE