SUMMARY OF COAST FLIGHT 8
Date: Fri, 22 Jun 2001 14:13:12 -0400 (EDT)
From: JOHN M BANE
Subject: COAST Flight Report - June 21
COAST Flight Number 8 was flown on June 21, 2001. After deploying five (of six planned) AXBTs on Big Box Line 2 between about 1330 and 1400 PDT, measurements were concluded early due to extremely low cloud and fog layers over the study area. We initially proceeded westward from the coastline along Line 2, flying at 500 ft, which put us below an overcast stratus layer. About 30 nm from shore the base of the cloud layer lowered to ultimately reach the sea surface, and although the flight conditions were acceptable, we could not see the ocean surface well enough for safe BT deployment. The low clouds also prevented our remote sensors from seeing the surface for SST and color measurements. We climbed to above the stratus layer and observed the entire area within our view to be covered in a similar fashion. The decision was made to return to Corvallis.
The five AXBT profiles that were measured and the abbreviated E-W section that they comprise, along with the SST and wind data collected on this line will be reported as the data set for this flight. The wind was below ten knots at 500 ft, and surface slicks and foam lines (some with small-scale eddies on them) could be seen easily. We obtained several digital photographs of these features.
As this was to be the first of several (roughly) weekly monitoring flights during the period between major COAST cruises, we will attempt another such flight as soon as the weather permits.
(Disclaimer - These descriptions are from looking at computer graphical displays while aboard the aircraft, and closer inspection of post-flight data products will provide more accurate conclusions, some of which may differ from statements here.)
Data products will be available from http://www.marine.unc.edu/cool/COAST or they may be retrieved from the real-time results or 4-days-plus results areas. All of these are buttons off of the main COAST site.
June 22, 2001