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The year 1912 was a tragic one for Russian explorers in the Kara Sea. In that fateful year unbroken consolidated ice blocked the way for the Northern Sea Route and three expeditions that had to cross the Kara Sea became trapped and failed: Sedov's on vessel St. Foka, Brusilov's on the St. Anna, and Rusanov's on the Gercules. Georgy Sedov ...
The four-month 1910 North Atlantic expedition headed by John Murray and Johan Hjort was the most ambitious research oceanographic and marine zoological project ever mounted until then, and led to the classic 1912 book The Depths of the Ocean. The first acoustic measurement of sea depth was made in 1914.
The 1912 Murray and Hjort book The Depths of the Ocean quickly became a classic for marine naturalists and oceanographers. For several years, Hjort had been interested in the statistical nature and causes of the large fluctuations of fish populations.
Bathymetric charts showcase depth using a series of lines and points at equal intervals, called depth contours or isobaths (a type of contour line). A closed shape with increasingly smaller shapes inside of it can indicate an ocean trench or a seamount, or underwater mountain, depending on whether the depths increase or decrease going inward. [2]
Challenger ' s discovery of this depth was a key finding of the expedition in broadening oceanographic knowledge about the ocean's depth and extent; the depression, the Challenger Deep, now bears the name of the vessel and its successor, HMS Challenger II, which in 1951 identified a depth of 5,944 fathoms nearby. [22]
The island was 28 miles long until 1957, when it was divided by the dredging of the Bob Sikes Cut to allow quicker passage of ships from Apalachicola to open ocean.
The first German visit to the sub-Antarctic region occurred during International Polar Year, 1882–83, when a team of scientists established a station at Royal Bay on the island of South Georgia. Over the year they carried out an extensive research programme, and observed the Transit of Venus on 6 December 1882. [1]
Every day for the last 12 months, the world’s sea surface temperatures have broken records. ... “It’s not just an entire year of record-breaking ocean temperatures, but it’s the margin it ...