Accession Number : AD0815707

Title :   BIRDS EYE 1-67, 15-28 JANUARY.

Descriptive Note : Informal rept.,

Corporate Author : NAVAL OCEANOGRAPHIC OFFICE NSTL STATION MS

Personal Author(s) : Boeger, A. C.

Report Date : APR 1967

Pagination or Media Count : 137

Abstract : Data collected by ice observers from the U.S. Naval Oceanographic Office on polar research flights known as BIRDS EYE missions are contained in this report covering the first mission of 1967 (BE 1-67). The manner in which these data were recorded is discussed. The overall effectiveness of the mission is included in an evaluation table. BIRDS EYE 1-67 observations were made under daylight, twilight, and moonlight conditions. Operations were scheduled to take advantage of optimum light over the arctic basin. Ten-tenths overall ice concentrations in the arctic basin were similar to conditions observed during the same time period last year (BIRDS EYE 1-66). Lighter concentrations were observed in Baffin Bay and along the East Greenland coast. These observations appeared to be consistent with those taken during BIRDS EYE 9-66 (21 November through 11 December) but lighter than the ice concentrations observed during BIRDS EYE 1-66. Little open water observed over the arctic basin is quite normal for this time of year. Increased ridging over the previous BIRDS EYE was observed in the vicinity of Point Barrow and was also heavier than observed during BIRDS EYE 1-66. Flying conditions were generally good but were poor east of Greenland and north of Cape Lisburne. Landing lights were used for illumination during periods when moonlight was obscured by clouds. The BIRDS EYE 1-67 mission was considered highly effective. Portions of the BIRDS EYE 1-67 mission were repeated after a period of 8 days in order to record changes in ice conditions.

Descriptors :   (*ICE, AERIAL RECONNAISSANCE), (*ARCTIC REGIONS, ICE), SEA ICE, ICE ISLANDS, POLAR REGIONS, ARCTIC OCEAN, COASTAL REGIONS, GREENLAND, DIURNAL VARIATIONS, THICKNESS, TABLES(DATA), FLIGHT PATHS, WEATHER FORECASTING, OCEANOGRAPHIC DATA, VISIBILITY, METEOROLOGICAL PHENOMENA, MAPS, TRANSPORT AIRCRAFT.

Subject Categories : Snow, Ice and Permafrost

Distribution Statement : APPROVED FOR PUBLIC RELEASE