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Dynamics and transport of the Antarctic Circumpolar Current in Drake Passage (cDrake): measurements from moored instrumentation
Entry ID: 0635437

Abstract: This data set contains measurements collected in Drake Passage between November 2007 and December 2011 as part of the cDrake progam funded by the National Science Foundation. The quantities measured by the current-and-pressure-recording inverted echo sounders (CPIES) include bottom pressure, vertical acoustic travel time, near-bottom temperature and near-bottom currents. CPIES were deployed ... View entire text

Purpose: The goal of cDrake is to quantify the transport and understand the dynamic balances of the Antarctic Circumpolar Current in Drake Passage.
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Description: NSF Award #0635437
Geographic Coverage
Spatial coordinates   
  N: -54.96   S: -61.97   E: -60.37   W: -65.09
Min Depth: 481 M Max Depth: 4455 M

Data Set Citation
Version: Not provided
Temporal Coverage
Start Date: 2007-11-14
Stop Date: 2011-12-04
Data Resolution
Temporal Resolution: CPIES measurements are hourly.

Temporal Resolution: Current meter data sets are hourly or more frequent.

MOORINGS Ancillary Description
Quality These are the highest quality versions of the data after the least amount of processing.

For the CPIES, the current meter temperature sensor is located inside the current meter head; thus it is not in direct contact with the surrounding water. The absolute temperature is not accurate, however the variability is excellent.

A few of the CPIES were moved downslope by the strong currents. Pressure and travel time records have been adjusted to remove introduced offsets. The header records in the data file contain a warning about this situation.

The short moorings consisted of Aanderaa RCM8 current meters with rotors and vanes. Rotor stalls are flagged in the data files with the value "1".
Ancillary Keywords
Data Center
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Supplemental Info
Data Center URL:

Data Center Personnel
Phone: (301) 713-3272
Fax: (301) 713-3301
Email: Charles.Sun at
Contact Address:
US National Oceanographic Data Center
1315 East-West Highway
City: Silver Spring
Province or State: Maryland
Postal Code: 20910
Country: USA
Phone: 401-874-6615
Fax: 401-874-6728
Email: kdonohue at
Contact Address:
Graduate School of Oceanography
University of Rhode Island
215 South Ferry Rd
City: Narragansett
Province or State: RI
Postal Code: 02882
Country: USA
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2014-08-12
Last DIF Revision Date: 2018-06-07