Acoustic Doppler Current Profiler Data - 2014

• Main Authors: Carin Ashjian, Frank Bahr, Robert G Campbell, Stephen R. Okkonen
• Format: Dataset
• Language: unknown
• Published: Arctic Data Center 2015
• Subjects: EARTH SCIENCE > OCEANS > OCEAN HEAT BUDGET > ADVECTION; EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > ACOUSTIC SCATTERING; IN SITU/LABORATORY INSTRUMENTS > PROFILERS/SOUNDERS > ACOUSTIC SOUNDERS > ADCP > ACOUSTIC DOPPLER CURRENT PROFILER; SHIP; TRANSECT; 1 METER TO 30 METERS; 1 MINUTE TO 1 HOUR; oceans; Arctic; Arctic Ocean; Chukchi Sea; Beaufort Sea; Chukchi
• Online Access: https://doi.org/10.18739/A2Q30Q

Acoustic Doppler current profiler data (ADCP) were collected using a RD Instruments, 300 kHz ADCP that was mounted on an acoustic sled and towed alongside the R/V Annika Marie. Deployment was somewhat limited by weather, with higher sea states precluding use of the instrument. Data were processed by Frank Bahr at the Woods Hole Oceanographic Institution. Ten files are included. Data are included in three files: A matlab file and .zip file and .tar files containing ascii files for each deployment. A "readme" file documents the format for the ascii and matlab files. Processing notes are provided in the file: sos2014barrow_procnotes.txt .png files of the surface currents for each deployment also are included for reference. 1.) Matlab format. The .mat file sos2014_dt.mat contains all deployments in the structure vm_data The format is described in a text variable "readme" 2.) ascii format The data are also presented in ascii, with one data file per deployment, with files zipped together in to sos2014dt_ascii.zip or sos2014dt_asc.tar The first line of each file gives the center depth of the ADCP bins in meters. Note that both the bin depths as well as the number of bins may change between deployments It is followed by one line per ADCP profile, listing - profile time as year/month/day hour:min:sec - profile time in 2010 decimal days (noon on Jan 1 equals decimal day 0.5) - longitude, latitude in decimal degrees - N values of zonal velocity, positive eastward, where N is the number of bins - N values of meridional velocity, positive northward "Bad" data are marked with the flag value 999.99.