Tide Gauge Records 1996-1997, Beaver Lake, Australian Antarctic Territory

Tides were measured using a portable pressure transducer secured to fast ice at the mouth of Pagodroma Gorge with the transducer about 4 metres below low water line. A 30 day record was obtained.

Documentation dated 2001-03-07

Beaver Lake and the Stillwell Hills

In Dec 1996 - Jan 1997 a temporary pressure type tide gauge was deployed at Beaver Lake and the Stillwell Hills in open water.

Timed water level measurements were made over this period.

From these data a value for MSL was found for Beaver Lake and the Stillwell Hills.

Identification info

Alternate title: Tide Gauge Records 1996-1997, Beaver Lake, Australian Antarctic Territory

Date (Publication): 2019-10-17

Edition: 2

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:10.26179/5da7f4907b26f

Originator

Brolsma, H.

Publisher

Australian Antarctic Data Centre

Principal investigator

BROLSMA, HENK

Australian Antarctic Division

203 Channel Highway

Kingston

Tasmania

7050

Australia

Collaborator

BROLSMA, HENK

Australian Antarctic Division

203 Channel Highway

Kingston

Tasmania

7050

Australia

Name: CAASM Metadata

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

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

Elevation
Oceans

Extent

N

S

E

W

Extent

Description: Temporal Coverage

Temporal extent

TimePeriod: 1996-12-24 1997-01-23

NASA/GCMD Earth Science Keywords

EARTH SCIENCE > OCEANS > SEA SURFACE TOPOGRAPHY > SEA SURFACE HEIGHT
EARTH SCIENCE > OCEANS > TIDES > TIDAL COMPONENTS
EARTH SCIENCE > OCEANS > TIDES > TIDAL CURRENTS
EARTH SCIENCE > OCEANS > TIDES > TIDAL HEIGHT
EARTH SCIENCE > OCEANS > TIDES > TIDAL RANGE

Keywords

tides
tide gauge
National Tidal Facility

NASA/GCMD Earth Science Keywords

TIDE GAUGES

NASA/GCMD Earth Science Keywords

MOORINGS

NASA/GCMD Earth Science Keywords

AMD/AU
CEOS
AMD

NASA/GCMD Earth Science Keywords

CONTINENT > ANTARCTICA > BEAVER LAKE
GEOGRAPHIC REGION > POLAR

Resource constraints

Use limitation: This metadata record is publicly available.

Resource constraints

Access constraints: licence

Other constraints: These data are publicly available from the provided URL. They are only available in their original format. The tidal data from this gauge is also available from the National Tidal Centre (http://www.bom.gov.au/oceanography/projects/ntc/ntc.shtml).

Resource constraints

File type: Portable Network Graphic

Linkage: Creative Commons by Attribution logo

Title: Attribution 4.0 International (CC BY 4.0)

Website: https://creativecommons.org/licenses/by/4.0/legalcode
Legal code for Creative Commons by Attribution 4.0 International license

Use constraints: licence

Other constraints: 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=Beaver_Lake_Tide_Gauges when using these data.

Language: English

Character encoding: UTF8

Distribution Information

Distributor

Distributor

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)

Distributor

Fees: free

Planned available datetime: 2019-10-17T00:00:00

Units of distribution: MB

Transfer size: 231

Distribution format

Text

OnLine resource: GET DATA
Access data at the National Tidal Centre

OnLine resource: GET DATA > DIRECT DOWNLOAD
Download the dataset

OnLine resource: VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset.

Resource lineage

Statement: The data set between the time of deployment and recovery is complete. The dataset is complete except for a few days of records in late 1996. The portable gauge was deployed for 30 days and when recovered the data were downloaded and processed. These records and the leveling records were sent to the National Tidal Unit where a value for mean sea level was derived. Tidal records are checked for gross errors in height values and obvious timing errors. Further checks are done by NTU during processing. As of 2016-03-03 - these data are currently being reworked at the Australian Antarctic Division to improve the quality of the dataset. Processing of data from Macquarie Island, Beaver Lake, Stillwell Hills and Heard Island Tide Gauges. There have been two type of dataloggers used at Macquarie Island, Beaver Lake, Stillwell Hills and Heard Island. Vitel These units were used when the gauge was first commissioned mainly because they were designed to interface with the Bartex controller used with the Aquatrak Sensor. There were several small problems with these units. The Aquatrak records could not have access to the full memory so the loggers had to be downloaded every 23 days. Each line of the ASCII records obtained were padded to 80 characters making a 23 day record extremely large. An alternative method involving downloading the entire memory had the disadvantage that the records had to be extracted from a binary file and the whole memory had to be downloaded. A further problem was that logging ceased while data was downloaded. This resulted in the loss of several records every download. The Vitel datalogger did not included interface circuitry for a pressure transducer or thermistors. This had to be provided separately. Platypus Engineering Dataloggers. These were designed specifically for this application. They had the following features. Interface circuitry for all the sensors was built into the logger. Flash memory was used for data security. The flash memory also allowed the unit to be reprogrammed via the serial port Up to 1 Mbyte of memory was provided. The logger was built into a waterproof box. A scheduled wake up feature was included to allow the logger to wake up a sleeping radio modem at a predetermined time each day. Data Processing The data processing required was as follows. Vitel ASCII downloads. Data were sent in form downloaded to NTF. Some later files had the padding spaces removed to produce a smaller file. Vitel Binary files. Data were extracted from the binary memory dumps with a utility called XLATE which produced a verbose ASCII file. Data from both the Druck and Aquatrak sensors were assembled into a composite file before sending to NTF. Platypus Engineering Logger files. The downloads from these loggers is in a hex format. The file names have the extension .RAW. These files are processed with a utility called READLOG to produce a time series. The output files called ..LOG , were further processed to correct a bug in READLOG and to convert Druck pressure readings into water height units. The program to do this is called AQUACALC or DRCALC. These utilities will be written into the one conversion program. To convert pressure units to height, an assumed value of SG of 1.028 is used. The last thermistors fitted to the Aquatrak installation were calibrated in the laboratory and calibration coefficients derived.

Hierarchy level: Dataset

Maintenance and update frequency: As needed

Maintenance note: 2008-05-15 - record updated by Dave Connell, spatial coverage changed from Macquarie Island to Beaver Lake. 2008-10-16 - record updated by Dave Connell at Henk Brolsma's request. Details from documentation URL moved to DIF summary. 2017-03-03 - record updated by Dave Connell - basic updates. 2019-10-17 - record updated by Dave Connell. Entry_ID altered from Beaver_Lake.

Metadata

Metadata identifier: string/Beaver_Lake_Tide_Gauges

Language: English

Character encoding: UTF8

Sponsor

Australian Antarctic Division

Owner

AADC

Type of resource

Resource scope: Dataset

Alternative metadata reference

Title: gov.nasa.gsfc.gcmd

Citation identifier: a0486bdc-169c-4aa9-adcc-093ad4d638e0

Alternative metadata reference

Title: gov.nasa.gsfc.gcmd

Date (Last Revision): 2019-10-17T15:50:58

Identifier

Description: metadata.extraction_date

Alternative metadata reference

Title: gov.nasa.gsfc.gcmd

Citation identifier: 8.6

Metadata linkage: http://data.aad.gov.au/metadata/records/Beaver_Lake_Tide_Gauges
Point of truth for the metadata record

Date info (Creation): 1999-10-06T00:00:00

Date info (Last Update): 2019-10-17

Metadata standard

Title: ISO 19115-3

Edition: 2014

Other citation details: Version 1

Title: DIF to ISO 19115-1 Profile

Overviews

Spatial extent

N

S

E

W

Provided by

Access to the record in catalogue

Read here the full details and access to the data.

Associated resources

Not available