Abstract:

This dataset consists of acoustic Doppler current profiler (ADCP) current data collected during the Submesoscale Processes and Lagrangian Analysis on the Shelf (SPLASH) experiment in the Louisiana Bight on 2017-05-02. The data was collected using a Nortek Signature 1000 that was rigidly mounted on the UCLA Zodiac research vessel during the SPLASH campaign.

Suggested Citation:

Molemaker, Jeroen. 2019. Ship mounted ADCP data collected during the Submesoscale Processes and Lagrangian Analysis on the Shelf (SPLASH) experiment in the Louisiana Bight on 2017-05-02. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/n7-wa5p-jk51

Publications:

Solodoch, A., Molemaker, J. M., Srinivasan, K., Berta, M., Marie, L., & Jagannathan, A. (2020). Observations of Shoaling Density Current Regime Changes in Internal Wave Interactions. Journal of Physical Oceanography, 50(6), 1733–1751. doi:10.1175/jpo-d-19-0176.1

Purpose:

These current data was collected to study the dynamics of submesoscale fronts.

Data Parameters and Units:

ADCP data in NetCDF format; Data.xxx_.nc: Date, time[seconds since 1970-0101-00:00:00 UTC], time[Matlab serial date number], latitude [degrees East], longitude [degrees North], Velocity_Range[m], VelocityBeam1[m/s], VelocityBeam2[m/s], VelocityBeam3[m/s], VelocityBeam4[m/s], Correlation_Range([m], CorrelationBeam1[%], CorrelationBeam2([%], CorrelationBeam3[%], CorrelationBeam4[%], Amplitude_Range[m], AmplitudeBeam1[dB], AmplitudeBeam2[dB], AmplitudeBeam3[dB], AmplitudeBeam4[dB], SerialNumber, SpeedOfSound[m/s], Error, ExtendedStatus, Status, CellSize[m], Blanking[m], NominalCorrelation[%], Battery[Volt], MagnetometerX, MagnetometerY, MagnetometerZ, AccelerometerX, AccelerometerY, AccelerometerZ, AmbiguityVelocity[m/s], TransmitEnergy, PowerLevel([dB], Physicalbeam, MagnetometerTemperature[deg C], RTCTemperature[deg C], PressureSensorTemperature[deg C], EnsembleCount, WaterTemperature[degC], Pressure[dBar], Heading[degrees], Pitch[degrees], Roll[degrees], AHRSRotationMatrix, QuaternionW, QuaternionX, QuaternionY, QuaternionZ, AHRSGyroX, AHRSGyroY, AHRSGyroZ, HostFirstRecord, HostFirstRecordMatlab, HostStartDate. Position and orientation data is in files with names that start with KDS; KDS.xxx.txt: Time stamp [Date (YYMMDD), time[HHMMSS.xx UTC], latitude [degrees East], longitude [degrees North], heading[degrees], Speed over Ground[knots], Course over Ground[degrees], temperature[deg C], conductivity[S/m], salinity[PSU].

Methods:

Underway sampling using a downward looking, rigidly mounted ADCP, on the side of a 30ft research vessel.

Instruments:

Nortek Signature 1000

Individual Files: