The Northwest Tropical Atlantic Station (NTAS): NTAS-4 Mooring Turnaround Cruise Report

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 timescal...

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Bibliographic Details
Main Authors Plueddemann, Albert J, Ostrom, William M, Gaibraith, Nancy R, Bouchard, Paul R, Hogue, Brian P, Wasnewski, Brandon R, alsh, M. A
Format Publication
LanguageEnglish
Published 08.11.2006
Subjects
AIR WATER INTERACTIONS
ANOMALIES
BUOYS
CLIMATE
DETECTORS
MARINE ENGINEERING
MEASUREMENT
METEOROLOGICAL DATA
METEOROLOGY
MOISTURE
MOMENTUM
MOORING
NTAS(NORTHWEST TROPICAL ATLANTIC STATION)
OCEAN SURFACE
OCEANOGRAPHIC EQUIPMENT
OCEANOGRAPHY
OCEANS
PHYSICAL AND DYNAMIC OCEANOGRAPHY
RECOVERY
SEA WATER
STRUCTURAL ENGINEERING AND BUILDING TECHNOLOGY
SURFACE TEMPERATURE
SURFACES
TEMPERATURE
VARIABLES
VARIATIONS
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Summary: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.
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