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Macquarie Island Aerobiology and Wind Climate Project: Phase 3 Entry ID: ASAC_246 |
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Summary
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Abstract:
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. |
Related URL
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Link:
VIEW PROJECT HOME PAGE
Description: Public information for ASAC project 246 Link: VIEW RELATED INFORMATION Description: Download point for the data - paper Link: VIEW RELATED INFORMATION Description: Citation reference for this metadata record and dataset |
Geographic Coverage
| N: -54.55 | S: -54.7 | E: 158.9 | W: 158.8 |
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Temporal Coverage
| Start Date: 1979-09-01 |
| Stop Date: 1989-03-31 |
Location Keywords
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OCEAN
> SOUTHERN OCEAN
OCEAN > SOUTHERN OCEAN > MACQUARIE ISLAND GEOGRAPHIC REGION > POLAR |
Science Keywords
| ATMOSPHERE >ATMOSPHERIC WINDS >SURFACE WINDS [Definition] |
| BIOSPHERE >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
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BIOTA
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE |
Platform
| FIELD SURVEYS [Information] |
Quality
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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. |
Access Constraints
| A pdf copy of the referenced paper is available for download from the provided URL. |
Use Constraints
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This data set conforms to the PICCCBY Attribution License (http://creativecommons.org/licenses/by/3.0/). Please follow instructions listed in the citation reference at the provided URL when using these data. |
Keywords
| pollen trap |
| rotor circulation |
| pollen fallout |
| vegetation patterns |
| wind exposure |
Data Set Progress
| COMPLETE |
Data Center
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Australian Antarctic Data Centre, Australia
[Information]
Data Center URL: http://data.aad.gov.au
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Distribution
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Distribution_Media:
HTTP
Distribution_Size: 1,473 kb Distribution_Format: pdf Fees: free |
Personnel
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JAMES
PETERSON Role: INVESTIGATOR Role: TECHNICAL CONTACT Role: DIF AUTHOR Phone: +61 3 9905 2929 Fax: +61 3 9905 2948 Email: jim.peterson at arts.monash.edu.au Contact Address: DEPT OF GEOGRAPHY AND ENVIRONMENTAL SCIENCE MONASH UNIVERSITY WELLINGTON ROAD City: CLAYTON Province or State: Victoria Postal Code: 3168 Country: Australia |
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JENNIFER
SCOTT Role: TECHNICAL CONTACT Phone: +61 3 6226 2205 Fax: +61 3 6226 2989 Email: jenny.scott at utas.edu.au Contact Address: SCHOOL OF GEOGRAPHY AND ENVIRONMENTAL STUDIES University of Tasmania PRIVATE BAG 78 City: HOBART Province or State: Tasmania Postal Code: 7001 Country: Australia |
Creation and Review Dates
DIF Creation Date:
2012-07-18
Last DIF Revision Date:
2012-07-26
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