192 Alaskan Science Conference 



The method is being studied critically in this region of high 

 concentrations in order to resolve differences between values 

 based on sodium thiosulphate and sodium arsenite. Extended 

 studies of ozone are planned for the future to include measure- 

 ment of total ozone using a Dobson Spectrophotometer. At- 

 tempted correlations with meteorological parameters have not 

 been particularly successful. Observations at shorter intervals 

 may make correlation possible. Information on the circulation 

 of the atmosphere may be deduced from, or given explanation 

 of, the high values mentioned. A study is being planned to test 

 the effect of this high concentration of ozone on the deteriora- 

 tion of materials exposed to the Arctic atmosphere. (For refer- 

 ence to this work see reports to the Air Force Cambridge Re- 

 search Laboratories.) 



(4) Ionization studies 



In recent weeks a Compton ionization chamber has been 

 under construction. When completed it will be used to make 

 continuous records of the total ionization at the earth's surface. 

 The records will be correlated with auroral phenomena and 

 later with high altitude measurements of cosmic radiation that 

 it is planned to initiate in the future. 



General 



Certain items should be mentioned to make this report 

 complete. 



During the 1949-50 season a series of microwave— meteoro- 

 logical studies were carried out under the sponsorship of the 

 Air Force Cambridge Research Laboratories. 



The Signal Corps, Department of the Army, carries on an 

 intensive study of Radio Propagation in collaboration with the 

 University. 



No report of work done at the University of Alaska should fail 

 to mention specifically the extensive support financially and by 

 loan of equipment from the various agencies such as the Rocke- 

 feller Foundation, the Carnegie Institution of Washington, the 



