The objective of this mission was to study
Louisiana coastal zone turbidity;
monitor short term (hourly) sediment transport in turbid coastal
waters in Atchafalaya Bay, Louisiana (primary) using
MODIS Airborne Simulator (MAS); monitor sea surface temperature
in nearshore Gulf of Mexico including overpass of NOAA Buoy 92035
(secondary) using MAS and HIS (High Resolution Interferometer
Sounder).
Take-off was 12:30 UTC and return time was 18:20 UTC. ER-2 flew
3 complete revolutions (1402 - 1612 UTC) of NW-SE oriented racetrack
pattern (200 km legs) over Atchafalaya Bay region of Louisiana
coast. Scenes predominantly clear-sky turbid water in the Atchafalaya
Bay region. About 20% coastal land coverage. Some fog/stratus
(10%) present over water in outer leg of racetrack.
Excellent data collection over Atchafalaya Bay. Large turbidity
gradients present for detecting water motions. High turbidity
water extending southward from Bay region out onto the inner continental
shelf of the Gulf of Mexico. In situ data collection (water samples,
radiometric monitoring of reflectance) from boat teams supporting
MAS radiometric measurements.
Finally, there was an ARM CART site overpass both outbound and inbound.
The pilot noted the aircraft was at approximately 55,000
feet on outbound CART overpass. CART overpass on return at approximately
17:44 - clear sky conditions over site.