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Marthas Vineyard Coastal Observatory HF radar surface currents
Marthas Vineyard Coastal Observatory HF radar surface currents
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Date
2017-02-23
Authors
Kirincich, Anthony R.
Lentz, Steven J.
Lentz, Steven J.
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41.3319, -70.6998
DOI
10.1575/1912/8740
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Abstract
Observations of the vertical structure of velocity and hydrography were made at 9 locations within the study area, spanning water depths of 12 to 25 m, 1.5 to 11.5 km offshore. At each location, a surface mooring supported 4 to 7 SBE-37 MicroCats measuring temperature and conductivity (CT) throughout the water column. A nearby bottom lander supported an acoustic Doppler current profiler (ADCP) sampling water column velocities using vertical bins of 0.25 to 1 m and sample rates of 0.33-1 Hz. Moorings A,B,C, and F were deployed continuously from June 9th to December 4th while moorings E and I were deployed for 2 shorter time periods due to the constraints of a collaborative field program. The ADCP at mooring D was snagged by a trawler in mid-June and redeployed on August 5th. Mooring G is the Martha's Vineyard Coastal Observatory's (MVCO's) long-term underwater node, where continuous ADCP observations have been available since 2001. Mooring H, located adjacent to the MVCO tower itself, was deployed in early August.
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This data was collected by Kirincich and Lentz as part of the Inner Shelf Lateral Exchange Study focused on examining the spatial variability of the mechanisms and process that lead to the exchange of water masses across the inner part of the continental shelf. The data consists of estimates of Water Temperature and Salinity using SBE 37 Microcats, and horizontal (East and North) ocean currents made via ADCPs with transmit frequencies of 600 or 120 kHz. The dataset spans the 6—8 month period of June 9th 2014 to January 15, 2017 (as shown below. The ISLE study area spanned a 15 km by 25 km domain south of the Island of Martha’s Vineyard Massachusetts. See published works by Kirincich (2016, JOAT) or Kirincich and Lentz (2017, JGR) for details on the study area. The two zip files contain three types of files: station/mooring velocity data, station/mooring hydrography data, and HF radar surface currents. Converted to netCDF via MATLAB by A. Kirincich.
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