By H.E. Landsberg (ed.), J.Van Mieghem (ed.)
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Additional resources for Advances in Geophysics, Vol. 5
Ozone measurements at Little America indicate a surface ozone concentration about 25% greater than that existing in New Mexico. The percentage of carbon dioxide in Antarctica was found to be about the same as that in other nonindustrial areas. In the Arctic Ocean Basin, Drifting Station A reported that 12 in. of TABLE VI. Comparison of IGY satellite vehicles. Name Launching datet Mass (lb) Payload (lb) Shape Diameter (in) Length (in) Initial orbit: Period (min) Apogee (mi) Perigee (mi) Equatorial angle (") Lifetime Transmission frequency (mc/sec) Experiments* Sputnik I Oct.
NOTE:The U. S. program of satellite launching8 has been as follows: Test Vehicle zero (TVO), December 8, 1956 (successful); TV1, May 1, 1957 (successful); TV2, October 23, 1957 (successful); TV3, December 6, 1957 (failure); Explorer I, February 1, 1958 (successful); TV3 backup, February 4, 1958 (failure); Explorer 11, March 5, 1958 (failure); Vanguard, March 17, 1958 (successful); Explorer 111, March 26, 1958 (successful); Vanguard, April 28, 1958 (failure); Vanguard, May 27, 1958 (failure) ; Vanguard, June 26,1958 (failure).
The new range intersects the meridian through Barrow about 850 mi to the north. S. atomic submarines made underwater passages beneath the Arctic ice via the North Pole. Other IGY accomplishments include the development of the first successful sea-surface gravimeter by the Lamont Geological Laboratory. Oceanographic studies in the Gulf Stream show the presence of a counter Gulf Stream current (with a velocity of about 13 km/day to the southwest) a t a depth 9000 ft. Pronounced changes in the dissolved oxygen concentration have been found in the Atlantic Ocean near 15"s.