Data

Macquarie Island Aerobiology and Wind Climate Project: Phase 3

Australian Antarctic Data Centre
PETERSON (DECEASED), JAMES ; SCOTT, JENNIFER
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=https://data.aad.gov.au/metadata/records/ASAC_246&rft.title=Macquarie Island Aerobiology and Wind Climate Project: Phase 3&rft.identifier=https://data.aad.gov.au/metadata/records/ASAC_246&rft.publisher=Australian Antarctic Data Centre&rft.description=Metadata record for data from ASAC Project 246 See the link below for public details on this project. From the abstract of the referenced paper: Analyses of data collected during the summer of 1979-80 from pollen traps and a flag tatter experiment along a transect across Macquarie Island, between Bauer Bay and Sandy Bay, suggest that the most sheltered locations are in the lee of prominent ridges, especially below the eastern coastal cliff tops, but also, paradoxically, on the lower slopes of the windward (west) coast. The presence of feldmark community pollen grains from 'downwind' and higher altitudes in the west coast pollen traps indicates that, during the period here documented, the island formed a topographic barrier such that when there were winds from westerly quarters of sufficient velocity, not only would the predictable lee side rotor circulations have been produced, but also a trapped windward (west coast) rotor that, at low altitudes, would have run counter to the prevailing winds. Flag tatter data from the most exposed sites indicate local wind climates of greater severity than any measured in the same way at comparable maritime latitudes across similar topographic barriers elsewhere. It can be inferred that windward rotors are not uncommon on Macquarie Island. The effectiveness of Macquarie Island as a barrier to local ocean and atmospheric circulation is a function of balances between tectonic and denudational (including marine) processes and glacial eustasy, and would have varied over time. This, and the resulting effect of local wind circulation on fallout patterns, need to be considered when interpreting pollen diagrams.&rft.creator=PETERSON (DECEASED), JAMES &rft.creator=SCOTT, JENNIFER &rft.date=2000&rft.coverage=northlimit=-54.55; southlimit=-54.7; westlimit=158.8; eastLimit=158.9; projection=WGS84&rft.coverage=northlimit=-54.55; southlimit=-54.7; westlimit=158.8; eastLimit=158.9; 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_246 when using these data.&rft_subject=biota&rft_subject=climatologyMeteorologyAtmosphere&rft_subject=SURFACE WINDS&rft_subject=EARTH SCIENCE&rft_subject=ATMOSPHERE&rft_subject=ATMOSPHERIC WINDS&rft_subject=ISLANDS&rft_subject=BIOSPHERE&rft_subject=TERRESTRIAL ECOSYSTEMS&rft_subject=INDIGENOUS VEGETATION&rft_subject=VEGETATION&rft_subject=POLLEN&rft_subject=VEGETATION SPECIES&rft_subject=ANGIOSPERMS (FLOWERING PLANTS)&rft_subject=BIOLOGICAL CLASSIFICATION&rft_subject=PLANTS&rft_subject=pollen trap&rft_subject=rotor circulation&rft_subject=pollen fallout&rft_subject=vegetation patterns&rft_subject=wind exposure&rft_subject=FIELD SURVEYS&rft_subject=OCEAN > SOUTHERN OCEAN&rft_subject=OCEAN > SOUTHERN OCEAN > MACQUARIE ISLAND&rft_subject=GEOGRAPHIC REGION > POLAR&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_246 when using these data.

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A pdf copy of the referenced paper is available for download from the provided URL to AAD staff only.

Brief description

Metadata record for data from ASAC Project 246 See the link below for public details on this project. From the abstract of the referenced paper: Analyses of data collected during the summer of 1979-80 from pollen traps and a flag tatter experiment along a transect across Macquarie Island, between Bauer Bay and Sandy Bay, suggest that the most sheltered locations are in the lee of prominent ridges, especially below the eastern coastal cliff tops, but also, paradoxically, on the lower slopes of the windward (west) coast. The presence of feldmark community pollen grains from 'downwind' and higher altitudes in the west coast pollen traps indicates that, during the period here documented, the island formed a topographic barrier such that when there were winds from westerly quarters of sufficient velocity, not only would the predictable lee side rotor circulations have been produced, but also a trapped windward (west coast) rotor that, at low altitudes, would have run counter to the prevailing winds. Flag tatter data from the most exposed sites indicate local wind climates of greater severity than any measured in the same way at comparable maritime latitudes across similar topographic barriers elsewhere. It can be inferred that windward rotors are not uncommon on Macquarie Island. The effectiveness of Macquarie Island as a barrier to local ocean and atmospheric circulation is a function of balances between tectonic and denudational (including marine) processes and glacial eustasy, and would have varied over time. This, and the resulting effect of local wind circulation on fallout patterns, need to be considered when interpreting pollen diagrams.

Issued: 2000-07-20

Data time period: 1979-09-01 to 1989-03-31

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158.9,-54.55 158.9,-54.7 158.8,-54.7 158.8,-54.55 158.9,-54.55

158.85,-54.625

text: northlimit=-54.55; southlimit=-54.7; westlimit=158.8; eastLimit=158.9; projection=WGS84

Subjects
ANGIOSPERMS (FLOWERING PLANTS) | ATMOSPHERE | ATMOSPHERIC WINDS | BIOLOGICAL CLASSIFICATION | BIOSPHERE | EARTH SCIENCE | FIELD SURVEYS | GEOGRAPHIC REGION > POLAR | INDIGENOUS VEGETATION | ISLANDS | OCEAN > SOUTHERN OCEAN | OCEAN > SOUTHERN OCEAN > MACQUARIE ISLAND | PLANTS | POLLEN | SURFACE WINDS | TERRESTRIAL ECOSYSTEMS | VEGETATION | VEGETATION SPECIES | biota | climatologyMeteorologyAtmosphere | pollen fallout | pollen trap | rotor circulation | vegetation patterns | wind exposure |

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

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