Accession Number : AD0868470

Title :   BIRDS EYE 5-69, 18 July-5 August 1969.

Descriptive Note : Informal rept.,

Corporate Author : NAVAL OCEANOGRAPHIC OFFICE NSTL STATION MS

Personal Author(s) : Koester, R. W. ; Freeman, R. F.

Report Date : JAN 1970

Pagination or Media Count : 161

Abstract : BIRDS EYE 5-69 was a regularly scheduled Arctic Ocean ice reconnaissance mission covering the North American sector of the Arctic Basin, including its adjacent seas and areas within the Canadian Archipelago from 18 July to 5 August 1969. Ice observations were made under daylight conditions. Adverse weather in the Denmark Strait, Greenland Sea, and in areas within the Arctic Basin reduced the amount of ice data obtained. In the Greenland Sea, extensive ice coverage as observed on previous BIRDS EYE missions no longer existed as conditions returned to near normal. A large area of light ice concentrations was observed within the pack ice approximately 360 nm north of Alaska, while pressure ice was observed northwest of Banks Island. In the Parry Channel, fractures occurred in consolidated pack observed in Viscount Melville Sound during BIRDS EYE 4-69. Ice concentrations elsewhere were considerably decreased. Fast ice in the Mackenzie River delta had melted. Russian ice island NP-17 was sighted at 87 deg 30 min N, 29 deg 30 min E. (Author)

Descriptors :   (*AERIAL RECONNAISSANCE, SEA ICE), (*SEA ICE, ARCTIC REGIONS), THICKNESS, VOLUME, MELTING, CRACKS, ICE ISLANDS, RIVERS, DELTAS, CANADA, GREENLAND, DENMARK, STRAITS, ARCTIC OCEAN.

Subject Categories : Snow, Ice and Permafrost

Distribution Statement : APPROVED FOR PUBLIC RELEASE