To view this page ensure that Adobe Flash Player version 9.0.124 or greater is installed.
. Visibility
. Wind direction and velocity
. Seaside conditions, height, and direction of movement
E.3.b.5. Extent
Record the following extent of the spill:
. Size
. Direction of movement
. Direction, width, and length from the source
E.3.b.6. Density
Describe the density of the oil sheen. The terms defined in Table 10-1 below are used to describe the sightings. A combination of these terms is normally used since the center of a spill will tend to be thicker than the edges. These terms may be modified with light, medium, or heavy, and are ranked in order of increasing spill thickness.
E.3.c. Photographic Evidence
Whenever possible, it is desirable to gather photographic evidence to supplement written reports. Ideally, these should be oblique color photographs taken with a 35mm camera, high-quality digital or video camera, preferably one with a date/time stamp inserted on the images. Consult with your local MSO/MSD or coordinating unit for guidance on “chain of custody” procedures to be used for exposed film or videotape.
E.4. Additional Training/ References
“Open Water Oil Identification Job Aid for Aerial Observation” is an excellent job aid, which includes descriptions, as well as aerial photos. This reference is published by NOAA/HAZMAT and the U.S. Coast Guard MS Office Puget Sound, Port Operations Department, and can be obtained online at:
http://response.restoration.noaa.gov/job_aid/jobaid.html
Table 10-1 Descriptions of Oil Sightings
Term
Description
Light Sheens
Light sheens are light, almost transparent layers of oil, which cause a glassy sheen on the surface of the water. No “rainbow” hues are visible. Some natural biological processes can also cause a sheen.
Silver Sheens
Silver sheens are slightly thicker layers of oil that impart a silvery or shimmery look to the sheen.
Rainbow Sheens
Rainbow sheens are rainbow-like reflections in the sheen.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址:AUXILIARY AVIATION TRAINING MANUAL(90)