Data

Amery Ice Shelf - hot water drill borehole AM06, RDI 300 kHz ADCP ocean velocity data 2010-2011

Australian Antarctic Data Centre
ROSENBERG, MARK ; GALTON-FENZI, BEN K ; GAMBLE ROSEVEAR, MADELAINE
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.26179/r16w-am36&rft.title=Amery Ice Shelf - hot water drill borehole AM06, RDI 300 kHz ADCP ocean velocity data 2010-2011&rft.identifier=10.26179/r16w-am36&rft.publisher=Australian Antarctic Data Centre&rft.description=This dataset contains time-series of current profiles from beneath the Amery Ice Shelf obtained from an Acoustic Doppler Current Profiler (ADCP) (RDI 300 kHz broadband Workhorse) on the AM06 mooring string. The ADCP was positioned ~108 m below the base of the ice shelf and oriented to look upwards (i.e. toward the base of the shelf) to examine the water cavity boundary layer and the range (distance) from the instrument to the ice-ocean interface. Accounting for instrument displacement by ocean currents, changes in range are expected to be indicative of basal melting. The dataset contains ~1 year of velocity data from 07/01/2010 sampled at 30 minute intervals. In the vertical, the ADCP sampled 27 bins, with a measurement every 4m. Key variables in the dataset include ocean velocity (u, v, w), instrument orientation (pitch, roll, heading) and distance from the instrument to the ice shelf base (btdistance), as well as quality control parameters such as beam correlation (avbeamcor), strength of the return/echo amplitude (ampav) and velocity error (errv). Two data files are archived here, the raw data adcp_am06_1noqc.nc and the quality-controlled data adcp_am06_1qc.nc. Descriptions of the quality control and post-processing are found in readme.rtf and notes and preliminary plots are found in borehole2010_11.pdf.&rft.creator=ROSENBERG, MARK &rft.creator=GALTON-FENZI, BEN K &rft.creator=GAMBLE ROSEVEAR, MADELAINE &rft.date=2021&rft.coverage=northlimit=-66; southlimit=-75; westlimit=59; eastLimit=80; projection=WGS84&rft.coverage=northlimit=-66; southlimit=-75; westlimit=59; eastLimit=80; projection=WGS84&rft_rights=This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_1164_AM06_ADCP when using these data.&rft_subject=oceans&rft_subject=OCEAN CURRENTS&rft_subject=EARTH SCIENCE&rft_subject=OCEANS&rft_subject=OCEAN CIRCULATION&rft_subject=ICE GROWTH/MELT&rft_subject=CRYOSPHERE&rft_subject=SNOW/ICE&rft_subject=AMERY ICE SHELF&rft_subject=ADCP > Acoustic Doppler Current Profiler&rft_subject=FIELD INVESTIGATION&rft_subject=CONTINENT > ANTARCTICA > AMERY ICE SHELF&rft_subject=GEOGRAPHIC REGION > POLAR&rft_subject=OCEAN > SOUTHERN OCEAN > AMERY ICE SHELF&rft_place=Hobart&rft.type=dataset&rft.language=English Access the data
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This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_1164_AM06_ADCP when using these data.

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Brief description

This dataset contains time-series of current profiles from beneath the Amery Ice Shelf obtained from an Acoustic Doppler Current Profiler (ADCP) (RDI 300 kHz broadband Workhorse) on the AM06 mooring string. The ADCP was positioned ~108 m below the base of the ice shelf and oriented to look upwards (i.e. toward the base of the shelf) to examine the water cavity boundary layer and the range (distance) from the instrument to the ice-ocean interface. Accounting for instrument displacement by ocean currents, changes in range are expected to be indicative of basal melting.

The dataset contains ~1 year of velocity data from 07/01/2010 sampled at 30 minute intervals. In the vertical, the ADCP sampled 27 bins, with a measurement every 4m. Key variables in the dataset include ocean velocity (u, v, w), instrument orientation (pitch, roll, heading) and distance from the instrument to the ice shelf base (btdistance), as well as quality control parameters such as beam correlation (avbeamcor), strength of the return/echo amplitude (ampav) and velocity error (errv).

Two data files are archived here, the raw data "adcp_am06_1noqc.nc" and the quality-controlled data "adcp_am06_1qc.nc". Descriptions of the quality control and post-processing are found in "readme.rtf" and notes and preliminary plots are found in "borehole2010_11.pdf".

Issued: 2021-10-18

Data time period: 2010-01-07 to 2011-01-08

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80,-66 80,-75 59,-75 59,-66 80,-66

69.5,-70.5

text: northlimit=-66; southlimit=-75; westlimit=59; eastLimit=80; projection=WGS84

Subjects
ADCP > Acoustic Doppler Current Profiler | AMERY ICE SHELF | CONTINENT > ANTARCTICA > AMERY ICE SHELF | CRYOSPHERE | EARTH SCIENCE | FIELD INVESTIGATION | GEOGRAPHIC REGION > POLAR | ICE GROWTH/MELT | OCEAN > SOUTHERN OCEAN > AMERY ICE SHELF | OCEAN CIRCULATION | OCEAN CURRENTS | OCEANS | SNOW/ICE | oceans |

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AU-ANL:PEAU : http://nla.gov.au/nla.party-617536

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