Monday, 2 June 2014

Antarctica at last - Cape Adare

Day 14. Friday 24 January - Cape Adare
Noon position: Latitude 7115.632’ South; Longitude 17017.427’ East , 
Air temperature: 8o,  Water temperature: 0oC
119 years ago today a landing was made on Ridley Beach, Cape Adare, (24 Jan.1895) from the ship Antarctic, during Henryk Bull’s whaling expedition.
We made an early start this morning in anticipation of a landing on Ridley Beach, named by Sir James Clark Ross for his friend Viscount Adare, MP for Glamorganshire, Wales.
We awoke to a slightly rough sea from a stiff westerly overnight and were soon passing through scattered areas of brash ice, bergy-bits and floes with occasional ones occupied by Adelie Penguins. 






As one floe passed and the obligatory penguin photo was taken, a passenger announced “Put there by the tourism board”. 







Great photographs were also captured of a hovering South Polar Skua.
Land Ahoy!  Cape Adare on the northern tip of Antarctica.


                 

By 7.30 am the peaks of the Transantarctic Mountains were sighted with great glaciers descending between peaks below the cloud to the sea. As we neared the Adare Peninsula we could see it was capped by a ‘whale-back’ cumulus cloud. Rodney pointed out many prominent landmarks, beginning with Cape McCormick in the south and the Downshire Cliffs of reddish brown volcanic rock, dramatic Mt. Herschel (3,335 m) near the Hallett Peninsula, first climbed by the late Sir Edmund Hillary’s expedition in 1967. The mountain was named by Ross after John F W Herschel, a noted English astronomer (not the chocolate baron). 
We rounded Cape Adare heading westward, and entered Robertson Bay. The westerly had dropped so It was a beautiful calm sunny morning, and around us were nearly 50 icebergs of various sizes, many of which were along the coast and further north. 
As the cloud base lifted great peaks on the Admiralty Range were revealed in all their glory: Mt Minto (4165 m) named by Ross after Earl Minto First Sea Lord of the Admiralty, and Mt Adam (4009) to the right named after a senior Naval Lord, and Mt Sabine (3718 m).



Unfortunately we could not make a Zodiac landing on Ridley Beach because of a built up of ice blown in by the westerly along the north and south shores. We had to be content with using binoculars and camera lenses to look at Borcrevich’s hut and the remains of a hut from one of Scott’s parties in the midst of a large Adelie Penguin colony, along with the location of Nicolai Hanson’s grave. We hoped to be able to visit the huts on our return north.

We also spotted our first crabeater seal basking on an icefloe,

Many on deck were interested in the blue ice within small caves of a berg. 



The reason for the colour is as follows: Firstly, snow appears white because air trapped between ice crystals making up the snow scatters and reflects all wave lengths of sunlight back into our eyes. Compacted glacial ice from which many icebergs are derived, retain smaller ice bubbles which allow penetration of sunlight deep into the ice. Ice crystals absorb six times as much light at the red end of the spectrum as at the blue end. Since the ice absorbs most of the red light, only the blue end of the spectrum is reflected back at us to see. Very old multi-year ice, viewed in sunlight are the most spectacular, although under certain conditions including with no sunlight present, younger bergs can be rewarding.

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