Both aircraft flew at an altitude of 300 meters; the NASA aircraft 

 was approximately 0.8 km directly "behind the ASWEPS aircraft. Air 

 speed was 350 km/hour. After crossing the Gulf Stream the ASWEPS 

 aircraft descended to an altitude of 150 meters. Simultaneous wave 

 profile, scatterometer, and microwave measurements were obtained 

 along the track shown in figure h. 



Bermuda 



On 7 March 1966 "both aircraft flew a series of flight tracks 

 (figure 5) over ARGUS ISLAND to obtain scatterometer and radar wave 

 profile measurements. The ASWEPS aircraft flew at an altitude of 150 

 meters; the NASA aircraft flew at 215 meters and approximately 1.6 km 

 "behind the ASWEPS aircraft. The first track was flown downwind and 

 the second track upwind. Six additional tracks were flown, each ^5° 

 to the right of the preceding track. The ARGUS ISLAND wave recorder 

 was operated continuously during these flights. 



Both aircraft flew patterns (figures 6 and 7) on 8 and 10 March 

 to obtain surface temperature data. The flight tracks extended from 

 Bermuda over Challenger and Plantagenet Banks and terminated over 

 deep water. Simultaneous radiation thermometer and infrared scanner 

 measurements were made. Infrared color and multiband photographs 

 were also obtained. On both days the ASWEPS aircraft flew at an alti- 

 tude of 550 meters, and the NASA aircraft flew at k^O meters and 

 approximately 0.8 km directly behind the ASWEPS aircraft. 



The two aircraft flew a series of flights over ARGUS ISLAND on 

 10 and 11 March at altitudes of 150, 300, 610, 1,520, 3,050, and I*, 120 

 meters to determine the effect of altitude upon microwave radiometer 

 and radiation thermometer measurements. Flights were made on the 

 afternoon of 10 March and before dawn on 11 March. 



A dye study was conducted on 9 March 1966 near ARGUS ISLAND. One 

 hundred and fifteen liters of a fluorescent dye (Rhodamine-B) were re- 

 leased 0.5 km northwest of ARGUS ISLAND at 1350Z. Surface concentra- 

 tions were monitored from a boat with the fluorometer for k hours, 

 while aerial photographs of the dye patch were made with the multi- 

 band and infrared color cameras. 



Bermuda to Cape Hatteras 



Simultaneous radiation thermometer and infrared scanner measure- 

 ments were obtained over the Gulf Stream in the Cape Hatteras area 

 along the return flight path (figure 8) on 12 March 1966. Both air- 

 craft flew at an altitude of 300 meters with the NASA aircraft approxi- 

 mately 0.8 km directly behind the ASWEPS aircraft. Air speed was 350 

 km/hour . 



