Light absorbing impurity profiles in snow on sea-ice collected during SIPEX II
Progress Code: completed Statement: Our sampling techniques got better with each ice station, but at the first few ice stations there was a considerable amount of lint in our snow samples. The lint was likely from our gloves. The lint can be carefully removed from the filters once back in Seattle so...
Format: | Dataset |
---|---|
Language: | unknown |
Published: |
Australian Ocean Data Network
|
Subjects: | |
Online Access: | https://researchdata.edu.au/light-absorbing-impurity-sipex-ii/2822625 |
id |
ftands:oai:ands.org.au::2822625 |
---|---|
record_format |
openpolar |
spelling |
ftands:oai:ands.org.au::2822625 2023-12-03T10:08:52+01:00 Light absorbing impurity profiles in snow on sea-ice collected during SIPEX II Spatial: westlimit=113; southlimit=-66.0; eastlimit=147; northlimit=-42.0 Temporal: From 2012-09-14 to 2012-11-04 https://researchdata.edu.au/light-absorbing-impurity-sipex-ii/2822625 unknown Australian Ocean Data Network https://researchdata.edu.au/light-absorbing-impurity-sipex-ii/2822625 SIPEX_II_Impurities Dataset DOI AU/AADC > Australian Antarctic Data Centre, Australia environment oceans EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > ALBEDO SIPEX Impurities SPECTROPHOTOMETERS R/V AA > R/V Aurora Australis AMD AMD/AU CEOS ACE/CRC OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR dataset ftands 2023-11-06T23:53:30Z Progress Code: completed Statement: Our sampling techniques got better with each ice station, but at the first few ice stations there was a considerable amount of lint in our snow samples. The lint was likely from our gloves. The lint can be carefully removed from the filters once back in Seattle so our results will not be affected. Particulate impurities in snow such as dust and soot can absorb sunlight. This is important for snow albedo in the Arctic, but probably not in the Antarctic. Snow was collected in plastic bags through the full depth of the snowpack over first-year sea ice at several locations: one location each on Ice Stations 1, 2, 3, 4, 7, upwind of the ship. The snow was melted and the meltwater filtered. The filters will be analysed for light-absorbing impurities in a laboratory spectrophotometer in Seattle. Samples of size ~1 kg were collected at Ice Station 1. The filters were blank, so at Ice Stations 2 and 3 larger samples of size 2-4 kg were collected. The filters were still blank, so at Ice Stations 4 and 7 larger samples of size ~8 kg were collected; these do show a slight darkening visible by eye. No snow samples were collected at Stations 5 and 6. Local (ship) time is UTC+10; Sun time is UTC+8. Filters are labelled with prefix 'AO' for Antarctic Ocean. This dataset currently contains snow density (except for at one ice station) and volumes of melt water that were filtered. No further analysis has been carried out on these samples at this point, however at a later stage the filters will be analysed for spectral absorption and converted to a mixing ratio of black carbon in the snow. Dataset albedo Antarc* Antarctic Antarctic Ocean Antarctica Arctic aurora australis black carbon Sea ice Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Arctic Antarctic Southern Ocean The Antarctic Antarctic Ocean |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
environment oceans EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > ALBEDO SIPEX Impurities SPECTROPHOTOMETERS R/V AA > R/V Aurora Australis AMD AMD/AU CEOS ACE/CRC OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR |
spellingShingle |
environment oceans EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > ALBEDO SIPEX Impurities SPECTROPHOTOMETERS R/V AA > R/V Aurora Australis AMD AMD/AU CEOS ACE/CRC OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR Light absorbing impurity profiles in snow on sea-ice collected during SIPEX II |
topic_facet |
environment oceans EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > ALBEDO SIPEX Impurities SPECTROPHOTOMETERS R/V AA > R/V Aurora Australis AMD AMD/AU CEOS ACE/CRC OCEAN > SOUTHERN OCEAN CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR |
description |
Progress Code: completed Statement: Our sampling techniques got better with each ice station, but at the first few ice stations there was a considerable amount of lint in our snow samples. The lint was likely from our gloves. The lint can be carefully removed from the filters once back in Seattle so our results will not be affected. Particulate impurities in snow such as dust and soot can absorb sunlight. This is important for snow albedo in the Arctic, but probably not in the Antarctic. Snow was collected in plastic bags through the full depth of the snowpack over first-year sea ice at several locations: one location each on Ice Stations 1, 2, 3, 4, 7, upwind of the ship. The snow was melted and the meltwater filtered. The filters will be analysed for light-absorbing impurities in a laboratory spectrophotometer in Seattle. Samples of size ~1 kg were collected at Ice Station 1. The filters were blank, so at Ice Stations 2 and 3 larger samples of size 2-4 kg were collected. The filters were still blank, so at Ice Stations 4 and 7 larger samples of size ~8 kg were collected; these do show a slight darkening visible by eye. No snow samples were collected at Stations 5 and 6. Local (ship) time is UTC+10; Sun time is UTC+8. Filters are labelled with prefix 'AO' for Antarctic Ocean. This dataset currently contains snow density (except for at one ice station) and volumes of melt water that were filtered. No further analysis has been carried out on these samples at this point, however at a later stage the filters will be analysed for spectral absorption and converted to a mixing ratio of black carbon in the snow. |
format |
Dataset |
title |
Light absorbing impurity profiles in snow on sea-ice collected during SIPEX II |
title_short |
Light absorbing impurity profiles in snow on sea-ice collected during SIPEX II |
title_full |
Light absorbing impurity profiles in snow on sea-ice collected during SIPEX II |
title_fullStr |
Light absorbing impurity profiles in snow on sea-ice collected during SIPEX II |
title_full_unstemmed |
Light absorbing impurity profiles in snow on sea-ice collected during SIPEX II |
title_sort |
light absorbing impurity profiles in snow on sea-ice collected during sipex ii |
publisher |
Australian Ocean Data Network |
url |
https://researchdata.edu.au/light-absorbing-impurity-sipex-ii/2822625 |
op_coverage |
Spatial: westlimit=113; southlimit=-66.0; eastlimit=147; northlimit=-42.0 Temporal: From 2012-09-14 to 2012-11-04 |
geographic |
Arctic Antarctic Southern Ocean The Antarctic Antarctic Ocean |
geographic_facet |
Arctic Antarctic Southern Ocean The Antarctic Antarctic Ocean |
genre |
albedo Antarc* Antarctic Antarctic Ocean Antarctica Arctic aurora australis black carbon Sea ice Southern Ocean |
genre_facet |
albedo Antarc* Antarctic Antarctic Ocean Antarctica Arctic aurora australis black carbon Sea ice Southern Ocean |
op_source |
AU/AADC > Australian Antarctic Data Centre, Australia |
op_relation |
https://researchdata.edu.au/light-absorbing-impurity-sipex-ii/2822625 SIPEX_II_Impurities Dataset DOI |
_version_ |
1784260048185196544 |