ADCP data collected during the SAZ-SENSE voyage, January-February 2007

Metadata record for data from ASAC Project 2720

See the link below for public details on this project.

The overall objective is to characterise Southern Ocean marine ecosystems, their influence on carbon dioxide exchange with the atmosphere and the deep ocean, and their sensitivity to past and future global change including climate warming, ocean stratification, and ocean ... acidification from anthropogenic CO2 emissions. In particular we plan to take advantage of naturally-occurring, persistent, zonal variations in Southern Ocean primary production and biomass in the Australian Sector to investigate the effects of iron addition from natural sources, and CO2 addition from anthropogenic sources, on Southern Ocean plankton communities of differing initial structure and composition.

These samples were collected on the SAZ-SENSE scientific voyage of the Australian Antarctic Program (Voyage 3 of the Aurora Australis, 2006-2007 season).

SAZ-SENSE VOYAGE AU0703 ADCP DATA

* The complete ADCP data for cruise au0703 are in the files:

au070301.cny (ascii format)

a0703dop.mat (matlab format)

* The "on station" ADCP data (specifically, the data for which the ship speed was less than or equal to 0.35 m/s) are in the files:

au0703_slow35.cny (ascii format)

a0703dop_slow35.mat (matlab format)

* The file bindep.dat shows the water depths (in metres) that correspond to the centre of each vertical bin.

* The data are 30 minute averages. Each 30 minute averaging period starts from the time indicated. (so, e.g., an ensemble with time 120000 is the average from

120000 to 123000).

* ADCP currents are absolute - i.e. ship's motion has been subtracted out.

* Note that the top few bins can have bad data from water dragged along by the ship.

* Beware of data when the ship is underway - it's often suspect.

* Important data quality information can be found in the data report referenced above.

* The figure a0703difship30.eps shows the speed difference between vertical bin 2 and all other bins, where the data have been divided up into different speed classes for ship speed. The apparent vertical shear for bins ~1-10, and below bin ~40, is an error, possibly due to acoustic ringing from an air/water interface in the seachest. Data where ship speed is 0 to 1 m/s does not show this error.

Identification info

Alternate title: ADCP data collected during the SAZ-SENSE voyage, January-February 2007

Date (Publication): 2010-03-09

Edition: 1

Citation identifier

Dataset DOI

Title: Information and documentation - Digital object identifier system

Date (Publication): 2012-04-23

Citation identifier: ISO 26324:2012

Citation identifier: doi:10.4225/15/57AC155E13156

Originator

Rosenberg, M., Howard, W. and Griffiths, B.

Publisher

Australian Antarctic Data Centre

Principal investigator

ROSENBERG, MARK

ACE CRC, c/- University of Tasmania

Private Bag 80

Hobart

Tasmania

7001

Australia

+61 3 6226 7651

+61 3 6226 2973 (facsimile)

Principal investigator

HOWARD, WILLIAM

School of Earth Sciences

University of Melbourne

Melbourne

Victoria

3010

Australia

Principal investigator

GRIFFITHS (RETIRED), BRIAN

CSIRO

Australia

Collaborator

ROSENBERG, MARK

ACE CRC, c/- University of Tasmania

Private Bag 80

Hobart

Tasmania

7001

Australia

+61 3 6226 7651

+61 3 6226 2973 (facsimile)

Collaborator

GRIFFITHS (RETIRED), BRIAN

CSIRO

Australia

Name: CAASM Metadata

Website: https://data.aad.gov.au/metadata/records/ASAC_2720_ADCP

Status: Completed

Custodian

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)

Australian Antarctic Division

203 Channel Highway

Kingston

Tasmania

7050

Australia

+61 3 6232 3244

+61 3 6232 3351 (facsimile)

Topic category

Oceans

Extent

Description: Temporal Coverage

Temporal extent

TimePeriod: 2007-01-17 2007-02-20

Title: SAZ-SENSE, Marine Science Cruise AU0703 - Oceanographic Field Measurements and Analysis

Date (Publication): 2007

Author

Rosenberg, M.