Getting Organized -20- 



3. Radiosonde data above freezing level were obtained daily 

 from Albany. 



4. Daily surface weather maps were prepared of the com- 

 plete Eastern United States area. 



5. Data were obtained daily of the winds aloft for the Eastern 

 United States. 



6. Local actual weather observations were made hourly. 



7. After each test flight, cross -sections of the areas seeded 

 were prepared, based on reports of flight personnel and 

 teletype weather reports. 



When the Operations Group was disbanded in 1950 and the facilities at 

 the General Electric Hangar were abandoned, the Weather Station was trans- 

 ferred to the penthouse of the Research Laboratory at the Knolls. 



Through the Office of Naval Research, two navy men had a lengthy 

 assignment to the project as aerologists, and as such they contributed much 

 valuable assistance to the study of general and specific problems encountered 

 in the various research studies. These men were Lt. (jg) W. E. Hubert and 

 H. J. Wells, AGO, (Lt. Hubert was succeeded in 1951 by Lt. Cdr. C. E. Tilden.) 

 A partial list of studies made by these men is included on pages i and ii of the 

 introduction, to the final report on Contract W-36-039-sc-38141 dated July 

 30, 1951. {91} 



PHOTOGRAPHY 



Another very important activity essential to the success of the project 

 was photography of various kinds. From the outset it was found that complete 

 evaluation of the results of the various seeding experiments could not be 

 made without taking pictures. 



Eoth still and motion -picture types of photography were used. In addi- 

 tion, special techniques were adopted. For example, by means of lapse -time 

 photographs it was possible to speed up movies in order to obtain a better 

 grasp of the changes taking place in a cloud. Also, by the use of stereoscopic 

 equipment, it was possible to produce three-dimensional views. 



A photographic darkroom was provided as part of the Ground Operations 

 facilities at the General Electric hangar. When the Operations Group was dis- 

 banded in 1950, darkroom facilities were provided in the penthouse weather 

 station at the Knolls. 



