infile='ISLE_station_A_velocity_wd15_23-Feb-2017.nc'; ncdisp(infile) Format: classic Global Attributes: CREATION_DATE = '23-Feb-2017' creator_name = 'A. Kirincich' creator_email = 'akirincich@whoi.edu' naming_authority = 'edu.whoi.mvco ' PROJECT = 'Marthas Vineyard Coastal Observatory HF Radar Surface Currents.' EXPERIMENT = 'Inner Shelf Lateral Exchange' Abstract = '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.' DESCRIPTION = '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. ' SENSOR_INFORMATION = 'The detailed deployment information for each station are::: Station A: was located at 41deg 19.9115' N and 70deg 41.9909' W, deployed from 06/09/2014 - 12/02/2014, in 15 m of water, sampled T,C at depths of 1,3,6,9,11 m, and sampled velocities using a WH 1200 kHz ADCP with 0.5 m bin depths. Station B: was located at 41deg 16.9728' N and 70deg 42.0058' W, deployed from 06/09/2014 - 12/02/2014, in 25 m of water, sampled T,C at depths of 1,3,6,9,12,17,21 m, and sampled velocities using a WH 600 kHz with 1.0 m bin depths. Station C: was located at 41deg 19.9113' N and 70deg 37.2089' W, deployed from 06/09/2014 - 12/02/2014 in 15 m of water, sampled T,C at depths of 1,3,6,9,11 m, and sampled velocities using a WH 1200 kHz with 0.5 m bin depths. Station D: was located at 41deg 17.0233' N 70deg 35.2148' W , deployed from 08/05/2014 - 01/15/2015 in 25 m of water, sampled T,C at depths of 1,3,6,9,12,17,21 m, and sampled velocities using a WH 600 kHz with 1.0 m bin depths. Station E: was located at 41deg 19.2610' N 70deg 31.5581' W, deployed from 07/02/2014 - 09/22/2014 and 11/11/2014 - 01/13/2015 for the ADCP (the CT measurements spanned the full record) in 15 m of water, sampled T,C at depths of 1,3,6,9,11 m, and sampled velocities using a Nortek 1000 kHz with 0.25 m bin depths. Station F: was located at 41deg 16.3790' N 70deg 31.8090', W deployed from 06/11/2014 - 12/05/2014 in 25 m of water, sampled T,C at depths of 1,3,6,9,12,17,21 m, and sampled velocities using a WH 600 kHz with 1.0 m bin depths. Station G: was located at 41deg 20.0931' N 70deg 33.4099'W , deployed from 06/09/2014 - 12/31/2014 in 12 m of water, sampled T,C at depths of 1,4,6,9 m, and sampled velocities using a WH 1200 kHz with 0.5 m bin depths. Station G is the MVCO 12-m node ADCP. Station H: was located at 41deg 19.4067' N 70deg 34.0606'W , deployed from 08/06/2014 - 01/15/2015 in 16 m of water, sampled T,C at depths of 1,3,6,9,11 m, and sampled velocities using a Nortek 1000 kHz with 0.25 m bin depths. Station I: was located at 41deg 18.1100' N 70deg 34.2297' W, deployed from 07/02/2014 - 09/22/2014 and 11/11/2014 - 01/13/2015 for the ADCP (the CT measurements spanned the full record) in 21 m of water, sampled T,C at depths of 1,3,6,9,12,17 m, and sampled velocities using a WH 600 kHz with 1.0 m bin depths. ' Data_Preparation_Description = 'The CT observations were processed to remove both temperature and conductivity spikes as well as biases due to conductivity drift before being used to estimate salinity and density. ADCP along-beam velocities were processed following Kirincich (2009, JPO) to give timeseries of quality controlled, horizontal velocities from ~1 m above the instrument to 2-4 m below the sea surface due to side lobe interference (Gordon, 1996). The exact bin of the side-lobe masking was determined using a precise, signal intensity-based, estimate of the sea surface height that accounted for tidal variability of the water column. All moored timeseries were averaged over independent 1/2 hour time intervals, centered on the hour, to match the temporal resolution of the surface current observations.' DATA_ORIGIN = 'Woods Hole Oceanographic Institution, Department of Physical Oceanography' FUNDING_SOURCE = 'The observations used in this study were supported by NSF OCE Grant #1332626 and internal funding from the Woods Hole Oceanographic Institution.' COORD_SYSTEM = 'GEOGRAPHIC ' Deployment_Vessel = 'RV Tioga ' platform_type = 'Bottom Lander' Deployment_date_1 = '09-Jun-2014 ' Recovery_date_1 = '31–Jan-2015' INST_TYPE_ADCP = 'T-RDI WH 1200 kHz' History = 'Converted to netCDF via MATLAB by A. Kirincich' Conventions = 'CF-1.6' latitude = 41.3319 latitude_units = 'degree_north' longitude = -70.6998 longitude_units = 'degree_east' WATER_DEPTH = 15 Dimensions: t = 10561 z = 30 Variables: bin_height Size: 30x1 Dimensions: z Datatype: double Attributes: variable = 'Bin height above bottom' units = 'meters' datetime Size: 10561x1 Dimensions: t Datatype: double Attributes: variable = 'Serial Date Number' calendar = 'gregorian' units = 'days since 1970-01-01T00:00:00Z' Temperature Size: 10561x1 Dimensions: t Datatype: double Attributes: variable = 'Temperature' units = 'degrees Celsius' missing_value = '999.0' Pressure Size: 10561x1 Dimensions: t Datatype: double Attributes: variable = 'ADCP Pressure' units = 'dB' missing_value = '999.0' East_vel Size: 30x10561 Dimensions: z,t Datatype: double Attributes: variable = 'East Velocity component' units = 'm/s' missing_value = '999.0' North_vel Size: 30x10561 Dimensions: z,t Datatype: double Attributes: variable = 'North Velocity component' units = 'm/s' missing_value = '999.0' Vertical_vel Size: 30x10561 Dimensions: z,t Datatype: double Attributes: variable = 'Vertical Velocity component' units = 'm/s' missing_value = '999.0' Error_vel Size: 30x10561 Dimensions: z,t Datatype: double Attributes: variable = 'Error Velocity component' units = 'm/s' missing_value = '999.0'