Tsar Bomba C), north of the Arctic Circle over the Novaya Zemlya archipelago in the Arctic Ocean. The bomb was dropped from an altitude of ; it was designed to detonate at a height of over the land surface ( above sea level) by barometric sensors. The original, November 1961, United States Atomic Energy Commission estimate of the yield was 55–60 megatons, but since 1992, all Russian sources have stated its yield as 58.6 megatons. First secretary Khrushchev warned in a filmed speech to the Supreme Soviet of the existence of a 100-megaton bomb (technically the design was capable of this yield.)
Severny Island ice cap their terminus on the coast of the Kara Sea. Gora Severny Nunatak is a nunatak located in the northern section of the long ice cap not far from the western coast of the island. Further to the northeast there is another nunatak between the two outlets of the Bunge Glacier. Severny Island ice cap Severny Island ice cap is an ice cap on Severny Island, northern island of the Novaya Zemlya archipelago in Russia. It covers 40% of Severny Island (which is the 30th largest island in the world) at total area of approximately which, if Novaya Zemlya is considered