Holl Island
| Holl Island | ||
|---|---|---|
| Waters | Vincennes Bay | |
| Archipelago | Windmill Islands | |
| Geographical location | 66 ° 24 '45 " S , 110 ° 24' 30" O | |
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| length | 3.4 km | |
| width | 1.8 km | |
| surface | 4.5 km² | |
| Highest elevation | 90 m | |
| Residents | uninhabited | |
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The Holl Island is the most south-westerly of the Antarctic Windmill Islands . It is located in Vincennes Bay on the Budd coast of the East Antarctic Wilkesland .
geography
The rock island is approximately triangular in shape and about 4.5 km² in size. It is up to 90 m high, with steep cliffs on its northwest coast. The island is not glaciated and there are a few smaller lakes in the summer. Immediately to the east of Holl Island are Werlein Island and O'Connor Island , to the north - separated by the Hiegel Passage - Ardery Island . Casey Station is 14 kilometers north .
climate
The climate on Holl Island is roughly the same as that of Casey Station on the Bailey Peninsula . The mean temperatures between 1957 and 1983 were 0.3 ° C in the warmest and −14.9 ° C in the coldest month. The average annual temperature was −9.3 ° C. The annual rainfall was 195 mm. Hurricane gusts occurred on an average of 96 days.
Wildlife
Numerous sea birds breed on the island . Mention should be made of the Adelie penguin , the snow petrel , the Cape petrel , the Antarctic skua , the spotted petrel and the silver petrel . Weddell seals , leopard seals and southern elephant seals have been observed in the waters around the island .
BirdLife International designates the Holl, Werlein and O'Connor Islands together as an Important Bird Area (AQ144).
history
The island was mapped in 1947/48 as part of Operation Windmill , a research and training mission of the United States Navy , and named after Richard C. Holl (1910-2004), a member of this mission.
Individual evidence
- ↑ a b Holl Island / O'Connor Island (AQ144) , data sheet on the BirdLife International website, accessed on July 23, 2018 (English).
- ↑ Ardery Island and Odbert Island, Budd Coast, Wilkes Land, East Antarctica (PDF; 1.37 MB), Management Plan for Antarctic Specially Protected Area No. 103, accessed on June 23, 2016
See also
- List of Antarctic and Sub-Antarctic Islands
- List of uninhabited islands and archipelagos (Southern Ocean)
Web links
- US Navy cartography data sheet from 1947/1948 ( Memento from July 19, 2005 in the Internet Archive )
- Map of the Windmill Islands (PDF, March 2009) at the Australian Antarctic Data Center (description)
