Brief description
The record describes data collected from a summer deployment of an Acoustic Doppler Current Profiler (ADCP) moored in the central part of Jervis Bay, New South Wales (35o 05'S, 150o 44'E). An ADCP measures how fast water is moving across an entire water column. Anchored to the seafloor it can measure current speed not just at the bottom, but also at equal intervals all the way up to the surface. For this experiment, the ADCP was moored on the seabed, in a frame, with sensors looking upwards and approximately 0.5m above the seabed. Over the summer deployment, 13th December 1990 to 15th January 1991, the ADCP was set-up with a 15 minute sampling interval and currents were measured over 1m depth bins. Bin numbers and currents are referenced as a height above the seabed (due to the uncertainty in defining water depth because of tides and air pressure). As such Bin #1 is centered at 1.5m above the transducer face or 2.0m above the seabed. Bin #2 is centered at 3m above the seabed, Bin #3 at 4m and so on. Three resources are provided: 1) A schematic of depth bin locations for the summer deployment, 2) Unfiltered east/west and north/south current values for every 15 minutes of the experiment, and 3) Low-pass filtered east/west and north/south hourly current values to remove tidal period motion. The filter has a half amplitude response at 32 hours and 48 hourly weights. This child record relates to the parent, b146e140-2ae6-11dd-a735-00188b4c0af8. A pdf outlining the structure and hierarchy of all metadata records relating to this project is available to download through this record. Also available is a pdf of a published working paper documenting this experiment and the results.Lineage
Maintenance and Update Frequency: notPlanned
Statement: Three resources are provided: 1) A schematic of depth bin locations for the summer deployment, 2) Unfiltered east/west and north/south current values for every 15 minutes of the experiment, and 3) Low-pass filtered east/west and north/south hourly current values to remove tidal period motion.
Parameters / Structure: 1) Water depth, bin depth, height above sea-bed, 2) AEST, east-west velocity in cm/s, north-south velocity in cm/s, 3) AEST, east-west velocity in cm/s, north-south velocity in cm/s,
Statement: Acoustic Doppler Current Profiler (ADCP)
Notes
CreditFunded by The Department of Defence
Credit
Funded by CSIRO Division of Fisheries Research
Funded by CSIRO Division of Fisheries Research
Purpose
To investigate the vertical coherence of currents in the bay and the coherence between the wind and currents at different water depths.
To investigate the vertical coherence of currents in the bay and the coherence between the wind and currents at different water depths.
Issued: 17 04 2008
Data time period: 1990-12-13 to 1991-01-15
text: westlimit=150.5; southlimit=-35.5; eastlimit=151.5; northlimit=-34.5
text: uplimit=22; downlimit=0
Subjects
EARTH SCIENCE |
OCEAN CIRCULATION |
OCEANS |
Tidal Components |
Tidal Currents |
TIDES |
Water Masses |
Wind-driven Circulation |
climatologyMeteorologyAtmosphere |
depth |
eastward_sea_water_velocity |
environment |
northward_sea_water_velocity |
oceans |
sea_floor_depth_below_sea_surface |
time |
User Contributed Tags
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Other Information
Schematic of depth bin locations for the summer deployment (ADCP_setup.jpg)
Unfiltered east/west and north/south current values: 15 minute values (ADCP_Summer_15min.xls)
Low-pass filtered east/west and north/south current values: 1hr values (ADCP_Summer_low_pass_filtered.xls)
Hierarchy of metadata records relating to the 'Water Circulation of Jervis Bay' project (Hierarchy.pdf)
WORKING PAPER 1992/2. Acoustic Doppler Current Profiler measurements in Jervis Bay: December 1990 to January 1991 and July 1991 to September 1991 (Accoustic_Doppler_Current_Profiler_Measurements_in_Jervis_Bay.PDF)
global : b146e140-2ae6-11dd-a735-00188b4c0af8
Identifiers
- global : 30d0a700-1fc2-11dd-a7e7-00188b4c0af8
