Macquarie Island Aerobiology and Wind Climate Project: Phase 3
Entry ID: ASAC_246
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.
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Description: Public information for ASAC project 246
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Description: Download point for the data - paper - AAD staff only
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Description: Citation reference for this metadata record and dataset
|N: -54.55||S: -54.7||E: 158.9||W: 158.8||
Data Set Citation
Peterson, J. and Scott, J.
Dataset Title: Macquarie Island Aerobiology and Wind Climate Project: Phase 3
Dataset Series Name: CAASM Metadata
Dataset Publisher: Australian Antarctic Data Centre
Online Resource: https://data.aad.gov.au/aadc/metadata/metadata_redirect.cfm?md=/AMD...
|Start Date: 1979-09-01|
|Stop Date: 1989-03-31|
> SOUTHERN OCEAN
OCEAN > SOUTHERN OCEAN > MACQUARIE ISLAND
GEOGRAPHIC REGION > POLAR
|ATMOSPHERE >ATMOSPHERIC WINDS >SURFACE WINDS [Definition]|
|BIOSPHERE >ECOSYSTEMS >TERRESTRIAL ECOSYSTEMS >ISLANDS [Definition]|
|BIOSPHERE >VEGETATION >INDIGENOUS VEGETATION [Definition]|
|BIOSPHERE >VEGETATION >POLLEN [Definition]|
|BIOSPHERE >VEGETATION >VEGETATION SPECIES [Definition]|
|BIOLOGICAL CLASSIFICATION >PLANTS >ANGIOSPERMS (FLOWERING PLANTS) [Definition]|
ISO Topic Category
|FIELD SURVEYS [Information]|
Dates provided in temporal coverage are approximate only.|
This record has been completed by staff at the Australian Antarctic Data Centre, and the quality of it's contents and related data cannot be guaranteed.
|A pdf copy of the referenced paper is available for download from the provided URL to AAD staff only.|
This data set conforms to the PICCCBY Attribution License (http://creativecommons.org/licenses/by/3.0/).|
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.
Data Set Progress
|Australian Antarctic Division|
Australian Antarctic Data Centre, Australia
Data Center URL: http://data.aad.gov.au
Distribution_Size: 1,473 kb
Role: TECHNICAL CONTACT
Phone: +61 3 6226 2205
Fax: +61 3 6226 2989
Email: jenny.scott at utas.edu.au
SCHOOL OF GEOGRAPHY AND ENVIRONMENTAL STUDIES
University of Tasmania
PRIVATE BAG 78
Province or State: Tasmania
Postal Code: 7001