TABLE 1. SUMMARY OF MARINE GEOPHYSICAL OBSERVATIONS -DEEP FREEZE 61 
STATEN ISLAND GLACIER EDISTO EASTWIND 
Oceanographic Stations 79 0 ID 0 
Oxygen Stations 79 0 0 0 
BT's 875 959 600 929 
Miles of Soundings 16,840 15,840 12,000 --- 
Miles of Geomagnetic Obs. 22,317 0 0 0 
Miles of Continuous 
Temperature Obs. 7910 ° ° ® 
Sea and Swell Obs. 190 ---- Saad --- 
ba eile a for Other 110 0 0 0 
Plankton Tows 17 0 0 0 
Dredge Hauls 5 ] 0 0 
Temporal Geomagnetic Obs. 82 0 0 0 
Miles of Mammal Obs. 14, 254 0 0 0 
Core Samples 7\ 0 0 0 
Miles of Ice Reconnaissance 4,975 ---- oo-- 540 
Surface Water Samples 75 0 0 0 
Ice observations were made by a team of five observers assigned for aerial ice 
reconnaissance by the U. S$. Navy Hydrographic Office to the Staff of Commander, 
Naval Support Forces, Antarctica. In addition, ice observations were made aboard 
all icebreakers by BT teams, aerographers, and quartermasters. 
Meteorological and sea and swell observations were made at intervals of 1 to 3 
hours by aerographers assigned to each icebreaker. These data were recorded on 
standard WBAN forms and forwarded to the National Weather Records Center, 
Asheville, North Carolina. Surface weather observations also were taken during 
Nansen cast (Appendix A) and BT lowerings. 
