Bathymetric data of Long and Tryne Fjords at Vestfold Hills, Antarctica, collected in December 1999
Depth measurements were made by 10kg, 3cm diameter x 50 cm long cylindrical weight on thin static rope. The effect of current on the rope appeared to be minimal. In places the bottom was muddy and the weight may have sunk into the substrate giving measurements a possible error of +/- 50 cm. This dat...
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Format: | Dataset |
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Australian Ocean Data Network
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Online Access: | https://researchdata.ands.org.au/bathymetric-long-tryne-december-1999/687228 https://data.aad.gov.au/metadata/records/VH_bathy_99 https://data.aad.gov.au/eds/1261/download http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=VH_bathy_99 |
id |
ftands:oai:ands.org.au::687228 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
biota geoscientificInformation inlandWaters oceans EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL ICE DEPTH/THICKNESS EARTH SCIENCE CRYOSPHERE SEA ICE SNOW DEPTH SNOW/ICE WATER CHANNELS TERRESTRIAL HYDROSPHERE SURFACE WATER ESTUARY DAY DEPTH ICE FREEBOARD LATITUDE LONGITUDE SNOW WEIGHPOINT STEEL MEASURING TAPE FIELD INVESTIGATION FIELD SURVEYS CEOS AMD/AU AMD ACE/CRC CONTINENT > ANTARCTICA ANTARCTICA > Long Fjord Tryne Fjord Vestfold Hills GEOGRAPHIC REGION > POLAR |
spellingShingle |
biota geoscientificInformation inlandWaters oceans EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL ICE DEPTH/THICKNESS EARTH SCIENCE CRYOSPHERE SEA ICE SNOW DEPTH SNOW/ICE WATER CHANNELS TERRESTRIAL HYDROSPHERE SURFACE WATER ESTUARY DAY DEPTH ICE FREEBOARD LATITUDE LONGITUDE SNOW WEIGHPOINT STEEL MEASURING TAPE FIELD INVESTIGATION FIELD SURVEYS CEOS AMD/AU AMD ACE/CRC CONTINENT > ANTARCTICA ANTARCTICA > Long Fjord Tryne Fjord Vestfold Hills GEOGRAPHIC REGION > POLAR Bathymetric data of Long and Tryne Fjords at Vestfold Hills, Antarctica, collected in December 1999 |
topic_facet |
biota geoscientificInformation inlandWaters oceans EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL ICE DEPTH/THICKNESS EARTH SCIENCE CRYOSPHERE SEA ICE SNOW DEPTH SNOW/ICE WATER CHANNELS TERRESTRIAL HYDROSPHERE SURFACE WATER ESTUARY DAY DEPTH ICE FREEBOARD LATITUDE LONGITUDE SNOW WEIGHPOINT STEEL MEASURING TAPE FIELD INVESTIGATION FIELD SURVEYS CEOS AMD/AU AMD ACE/CRC CONTINENT > ANTARCTICA ANTARCTICA > Long Fjord Tryne Fjord Vestfold Hills GEOGRAPHIC REGION > POLAR |
description |
Depth measurements were made by 10kg, 3cm diameter x 50 cm long cylindrical weight on thin static rope. The effect of current on the rope appeared to be minimal. In places the bottom was muddy and the weight may have sunk into the substrate giving measurements a possible error of +/- 50 cm. This dataset contains 102 depth measurements of the water column in Long and Tryne fjords, which are in the northern Vestfold Hills, Prydz Bay, Antarctica. Sea ice thickness and snow thickness were recorded simultaneously. The motivation for this project has been to yield a description of the pupping and moulting habitat of Weddell seals. This information will assist the interpretation of 25+ years of data on seal distribution within that area. Our data were collected between 7th and 13th December 1999. The measurement sites were chosen according to geographical features; their exact location was determined by GPS with an accuracy of about 25m. At each site a 5cm diameter hole was drilled through the sea ice and a weighted measurement tape was lowered through the ice-hole to the bottom. Water depths were measured to the nearest centimetre; ice and snow thicknesses were measured to the nearest millimetre. A minimum depth of less than 3m was found in a narrow channel between small islands immediately west of Shirokaya Bay. The maximum depth of the water column was 222m in the middle basin of Long Fjord. The tidal range for the measured days was less than 0.5m, with tidal corrections applied to the raw data. Water samples were taken in Breid Basin and the middle basin of Long Fjord. These and water samples taken in Snezhnyy Bay [pers. comm. J. Laybourn-Parry, 1999] show aerobic and relatively fresh water for all upper basins. This indicates that even the far basins of both fjords are well mixed despite the drainage of large volumes meltwater from the Antarctic plateau into the fjords. See related URL for data and a spatial summary of the data. See Entry: long_tryne_bathy for an interpolation of bathymetry made using the Topogrid command within the ArcInfo GIS software, version 8.0.2. Coastline and spot height (heights above sea level) data, extracted from the Australian Antarctic Data Centre's Vestfold Hills topographic GIS dataset (see Entry: vest_hills_gis), was also used as input data to optimise the interpolation close to the coastline. The fields in this dataset are: day weighpoint lat(dd) long(dd) ice (cm) freeboard(cm) snow(cm) depth(m) |
author2 |
AADC (originator) AU/AADC > Australian Antarctic Data Centre, Australia (resourceProvider) |
format |
Dataset |
title |
Bathymetric data of Long and Tryne Fjords at Vestfold Hills, Antarctica, collected in December 1999 |
title_short |
Bathymetric data of Long and Tryne Fjords at Vestfold Hills, Antarctica, collected in December 1999 |
title_full |
Bathymetric data of Long and Tryne Fjords at Vestfold Hills, Antarctica, collected in December 1999 |
title_fullStr |
Bathymetric data of Long and Tryne Fjords at Vestfold Hills, Antarctica, collected in December 1999 |
title_full_unstemmed |
Bathymetric data of Long and Tryne Fjords at Vestfold Hills, Antarctica, collected in December 1999 |
title_sort |
bathymetric data of long and tryne fjords at vestfold hills, antarctica, collected in december 1999 |
publisher |
Australian Ocean Data Network |
url |
https://researchdata.ands.org.au/bathymetric-long-tryne-december-1999/687228 https://data.aad.gov.au/metadata/records/VH_bathy_99 https://data.aad.gov.au/eds/1261/download http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=VH_bathy_99 |
op_coverage |
Spatial: northlimit=-69; southlimit=-69; westlimit=78; eastLimit=78 Temporal: From 1999-12-07 to 1999-12-13 |
long_lat |
ENVELOPE(78.483,78.483,-68.497,-68.497) ENVELOPE(78.333,78.333,-68.500,-68.500) ENVELOPE(-62.417,-62.417,-64.283,-64.283) ENVELOPE(78.167,78.167,-68.533,-68.533) ENVELOPE(157.334,157.334,51.334,51.334) ENVELOPE(78.443,78.443,-68.439,-68.439) ENVELOPE(78.373,78.373,-68.458,-68.458) ENVELOPE(78,78,-69,-69) |
geographic |
Antarctic Breid Basin Long Fjord Parry Prydz Bay Shirokaya Bay Snezhnyy Snezhnyy Bay The Antarctic Tryne Fjord Vestfold Vestfold Hills Weddell |
geographic_facet |
Antarctic Breid Basin Long Fjord Parry Prydz Bay Shirokaya Bay Snezhnyy Snezhnyy Bay The Antarctic Tryne Fjord Vestfold Vestfold Hills Weddell |
genre |
Antarc* Antarctic Antarctica Prydz Bay Sea ice Weddell Seals |
genre_facet |
Antarc* Antarctic Antarctica Prydz Bay Sea ice Weddell Seals |
op_source |
https://data.aad.gov.au |
op_relation |
https://researchdata.ands.org.au/bathymetric-long-tryne-december-1999/687228 d4376e4d-03e6-4b6a-b301-361434f67967 https://data.aad.gov.au/metadata/records/VH_bathy_99 https://data.aad.gov.au/eds/1261/download http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=VH_bathy_99 |
_version_ |
1766245728559038464 |
spelling |
ftands:oai:ands.org.au::687228 2023-05-15T13:46:56+02:00 Bathymetric data of Long and Tryne Fjords at Vestfold Hills, Antarctica, collected in December 1999 AADC (originator) AU/AADC > Australian Antarctic Data Centre, Australia (resourceProvider) Spatial: northlimit=-69; southlimit=-69; westlimit=78; eastLimit=78 Temporal: From 1999-12-07 to 1999-12-13 https://researchdata.ands.org.au/bathymetric-long-tryne-december-1999/687228 https://data.aad.gov.au/metadata/records/VH_bathy_99 https://data.aad.gov.au/eds/1261/download http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=VH_bathy_99 unknown Australian Ocean Data Network https://researchdata.ands.org.au/bathymetric-long-tryne-december-1999/687228 d4376e4d-03e6-4b6a-b301-361434f67967 https://data.aad.gov.au/metadata/records/VH_bathy_99 https://data.aad.gov.au/eds/1261/download http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=VH_bathy_99 https://data.aad.gov.au biota geoscientificInformation inlandWaters oceans EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL ICE DEPTH/THICKNESS EARTH SCIENCE CRYOSPHERE SEA ICE SNOW DEPTH SNOW/ICE WATER CHANNELS TERRESTRIAL HYDROSPHERE SURFACE WATER ESTUARY DAY DEPTH ICE FREEBOARD LATITUDE LONGITUDE SNOW WEIGHPOINT STEEL MEASURING TAPE FIELD INVESTIGATION FIELD SURVEYS CEOS AMD/AU AMD ACE/CRC CONTINENT > ANTARCTICA ANTARCTICA > Long Fjord Tryne Fjord Vestfold Hills GEOGRAPHIC REGION > POLAR dataset ftands 2020-01-05T21:08:27Z Depth measurements were made by 10kg, 3cm diameter x 50 cm long cylindrical weight on thin static rope. The effect of current on the rope appeared to be minimal. In places the bottom was muddy and the weight may have sunk into the substrate giving measurements a possible error of +/- 50 cm. This dataset contains 102 depth measurements of the water column in Long and Tryne fjords, which are in the northern Vestfold Hills, Prydz Bay, Antarctica. Sea ice thickness and snow thickness were recorded simultaneously. The motivation for this project has been to yield a description of the pupping and moulting habitat of Weddell seals. This information will assist the interpretation of 25+ years of data on seal distribution within that area. Our data were collected between 7th and 13th December 1999. The measurement sites were chosen according to geographical features; their exact location was determined by GPS with an accuracy of about 25m. At each site a 5cm diameter hole was drilled through the sea ice and a weighted measurement tape was lowered through the ice-hole to the bottom. Water depths were measured to the nearest centimetre; ice and snow thicknesses were measured to the nearest millimetre. A minimum depth of less than 3m was found in a narrow channel between small islands immediately west of Shirokaya Bay. The maximum depth of the water column was 222m in the middle basin of Long Fjord. The tidal range for the measured days was less than 0.5m, with tidal corrections applied to the raw data. Water samples were taken in Breid Basin and the middle basin of Long Fjord. These and water samples taken in Snezhnyy Bay [pers. comm. J. Laybourn-Parry, 1999] show aerobic and relatively fresh water for all upper basins. This indicates that even the far basins of both fjords are well mixed despite the drainage of large volumes meltwater from the Antarctic plateau into the fjords. See related URL for data and a spatial summary of the data. See Entry: long_tryne_bathy for an interpolation of bathymetry made using the Topogrid command within the ArcInfo GIS software, version 8.0.2. Coastline and spot height (heights above sea level) data, extracted from the Australian Antarctic Data Centre's Vestfold Hills topographic GIS dataset (see Entry: vest_hills_gis), was also used as input data to optimise the interpolation close to the coastline. The fields in this dataset are: day weighpoint lat(dd) long(dd) ice (cm) freeboard(cm) snow(cm) depth(m) Dataset Antarc* Antarctic Antarctica Prydz Bay Sea ice Weddell Seals Research Data Australia (Australian National Data Service - ANDS) Antarctic Breid Basin ENVELOPE(78.483,78.483,-68.497,-68.497) Long Fjord ENVELOPE(78.333,78.333,-68.500,-68.500) Parry ENVELOPE(-62.417,-62.417,-64.283,-64.283) Prydz Bay Shirokaya Bay ENVELOPE(78.167,78.167,-68.533,-68.533) Snezhnyy ENVELOPE(157.334,157.334,51.334,51.334) Snezhnyy Bay ENVELOPE(78.443,78.443,-68.439,-68.439) The Antarctic Tryne Fjord ENVELOPE(78.373,78.373,-68.458,-68.458) Vestfold Vestfold Hills Weddell ENVELOPE(78,78,-69,-69) |