Tangra 2004/05


Tangra 2004/05

The Tangra 2004/05 Expedition was commissioned by the Antarctic Place-names Commission at the Ministry of Foreign Affairs of Bulgaria, managed by the Manfred Wörner Foundation, and supported by the Bulgarian Antarctic Institute, the Institute of Mathematics and Informatics at the Bulgarian Academy of Sciences, Bulgarian Posts Plc; the Uruguayan Antarctic Program, Peregrine Shipping (Australia), and Petrol Ltd, TNT, Mtel, Bulstrad, Polytours, B. Bekyarov and B. Chernev (Bulgaria).

Expedition team

Dr. Lyubomir Ivanov (team leader), senior research associate, Institute of Mathematics and Informatics at the Bulgarian Academy of Sciences; chairman, Antarctic Place-names Commission; author of the 1995 Bulgarian Antarctic "Toponymic Guidelines" introducing in particular the present official system for the Romanization of Bulgarian; participant in four Bulgarian Antarctic campaigns, and author of the first Bulgarian Antarctic topographic map.

Doychin Vasilev, Bulgarian alpinist who has climbed five Himalayan 8,000 m peaks: Dhaulagiri (in 1995), Mount Everest (1997), Makalu (1998), and Shishapangma and Cho Oyu (1999).

Logistics and itinerary

Expedition ships: Uruguayan navy ship "Vanguardia", and Russian research ship "Akademik Sergey Vavilov".

Land transportation: man sledding, skiing, and trekking.

Duration: 14 November 2004 to 29 January 2005.

Antarctica: 25 November 2004 to 11 January 2005;
Livingston Island: 28 November 2004 to 4 January 2005;
St. Kliment Ohridski Base: 28 November to 8 December 2004, and 2–4 January 2005;
Camp Academia (541 м): 3 December 2004 to 2 January 2005;
Catalunyan Saddle bivouac (1255 м): 14–16 December 2004;
Juan Carlos I Base: 18 December 2004;
Leslie Hill bivouac (421 м): 24–28 December 2004;
Hannah Point: 4 January 2005;
Half Moon Island: 8 January 2005.

Field work

The Tangra 2004/05 team covered either on ski or on foot an overall distance of some 200 km, mostly in harsh weather conditions and challenging unfamiliar terrain in eastern Livingston Island, including the first crossing of Bowles Ridge, and first visit and routes to Vidin Heights, Gleaner Heights, Melnik Ridge, Levski Ridge, Saedinenie Snowfield, Kaliakra Glacier, Struma Glacier, middle Huron Glacier, Leslie Gap, Elhovo Gap, Gurev Gap, Yankov Gap, Pirdop Gate, Lozen Saddle, and the peaks Lyaskovets, Zograf, Lozen Nunatak, Erma Knoll, Aheloy Nunatak, Ravda, Komini, Ongal, Melnik, Castra Martis Hill, Radnevo, Zemen Knoll, and Miziya, as well as the third ascent of Presian Ridge and the summit Mount Friesland.

Extensive geodetic and geographic information was gathered, including coordinates and elevation data, actual sea shoreline and ice-free zones configuration, as well as a detailed photographic documentation of previously unexplored and remote areas in the interior of Livingston Island and Greenwich Island.

Results

Based on the survey, 146 geographical features were mapped for the first time, and the coordinates of other 8 features were updated. A new 1:100000 scale topographic map of the islands of Livingston and Greenwich was published in August 2005 in 1802 hard copies, and also made available in electronic version both in the website of the Ministry of Foreign Affairs of Bulgaria, and in the Wikimedia Commons.

In connection with the work carried out by the Tangra 2004/05 Expedition, 126 new Bulgarian names for hitherto nameless geographical features on Livingston Island and Greenwich Island were approved on 11 April and on 4 November 2005.

Invited lectures on the results of the expedition were given at the Faculty of Geology and Geography at Sofia University, the Ministry of Foreign Affairs of Bulgaria, the State Commission on Information Security, the Municipality of Radnevo etc.

See also

* Antarctic Place-names Commission
* Camp Academia
* Tangra Mountains
* Livingston Island
* Greenwich Island
* List of Bulgarian toponyms in Antarctica

Map

* L.L. Ivanov et al, (from English Strait to Morton Strait, with illustrations and ice-cover distribution), 1:100000 scale topographic map, Antarctic Place-names Commission of Bulgaria, Sofia, 2005

Sources

* [http://www.tangra2004bg.org/ Antarctic Expedition Tangra 2004/05]
* [http://apc.mfa.government.bg/ Antarctic Place-names Commission of Bulgaria]
* L.L. Ivanov, Livingston Island: Tangra Mountains, Komini Peak, west slope new rock route; Lyaskovets Peak, first ascent; Zograf Peak, first ascent; Vidin Heights, Melnik Peak, Melnik Ridge, first ascent, "The American Alpine Journal", 2005, 312-315
* Livingston Island, "Climb Magazine", Issue 14, Kettering, UK, April 2006, 89-91


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