The Northwest Tropical Atlantic Station (NTAS): NTAS-4 Mooring Turnaround Cruise Report
WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
Pagination or Media Count:
The Northwest Tropical Atlantic Station NTAS was established to address the need for accurate air-sea flux estimates and upper ocean measurements in a region with strong sea surface temperature anomalies and the likelihood of significant local air-sea interaction on interannual to decadal timescales. The approach is to maintain a surface mooring outfitted for meteorological and oceanographic measurements at a site near 150N, 510W by successive mooring turnarounds. These observations will be used to investigate air-sea interaction processes related to climate variability. Deployment of the first NTAS-1, second NTAS-2 and third NTAS-3 moorings were documented in previous reports Plueddemann et al., 2001 2002 2003. This report documents recovery of the NTAS-3 mooring and deployment of the NTAS-4 mooring at the same site. Both moorings used 3-meter discus buoys as the surface element. These buoys were outfitted with two Air-Sea Interaction Meteorology ASIMET systems. Each system measures, records, and transmits via Argos satellite the surface meteorological variables necessary to compute air-sea fluxes of heat, moisture and momentum. The upper 150 m of the mooring line were outfitted with oceanographic sensors for the measurement of temperature and velocity. The mooring turnaround was done on the NOAA Ship Ronald H. Brown, Cruise RB-04-01, by the Upper Ocean Processes Group of the Woods Hole Oceanographic Institution.
- Physical and Dynamic Oceanography
- Marine Engineering
- Structural Engineering and Building Technology