How Wandering Albatrosses use weather systems to fly long distances. 2. The use of eastward-moving cold fronts from Antarctic LOWS to travel westwards across the Indian Ocean
Autor: | E. C. Butcher, M. D. Murray, P. J. Moors, D. G. Nicholls |
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Rok vydání: | 2003 |
Předmět: |
0106 biological sciences
Ecology Forward flight Biology 010603 evolutionary biology 01 natural sciences 010605 ornithology Indian ocean Cold front Animal Science and Zoology Conservation biology Diomedea exulans exulans Ornithology Southern Hemisphere Ecology Evolution Behavior and Systematics Nature and Landscape Conservation |
Zdroj: | Emu - Austral Ornithology. 103:59-65 |
ISSN: | 1448-5540 0158-4197 |
DOI: | 10.1071/mu01011 |
Popis: | The flights of two non-breeding Wandering Albatrosses, Diomedea exulans exulans, were followed across the Indian Ocean from Australia. Most flight paths tacked across winds, with the forward flight being maintained within an arc of 110-170° from the direction of following winds. Westward flights, between 30°S and 50°S, repeatedly used the SW winds behind cold fronts associated with Antarctic LOWs. These winds enabled the birds to fly to the north-west and, when this brought the birds ahead of an easterly moving HIGH, the E-NE winds blowing to the north of the HIGH were used to continue the westerly movement. |
Databáze: | OpenAIRE |
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