i 6. Baseline Information. This area of research is concerned with the 
gathering and analysis of information on current systems, on on-going and 
planned developments, and on user requirements. 
  
WORKING GROUP MEETINGS 
As indicated earlier in the report, most of the Commission II Working Group 
meetings in the period 1980 - 1984 have been organized as colloquia or 
workshops combined with business meetings. 
Joint Working Group II/1 and II/2 Meeting and Colloquium was held at NOAA - 
National Ocean Survey in Rockville, Maryland, U.S.A., from 3rd to Sth of 
November 1981. The meeting was organized by L.W. Fritz, Chairman of W.G. II/l 
and M.L. McKenzie, Secretary of W.G. II/l. The sponsor of the meeting was 
NOAA - National Ocean Survey. 
  
Working Group II/3 Meeting was held at the EROS Data Center in Sioux Falls, 
South Dakota, U.S9.A., on 15th of October 1981. This business meeting was 
organized by F.C, Billingsley, Chairman of W.G. II/3. The sponsor of the 
meeting was EROS Data Center. 
Joint Working Group II/4 and II/5 Meeting and Workshop was held at European 
Space Agency, ESRIN, Earthnet Programme Office in Frascati, Italy, from 3rd to 
5th of December, 1981. This meeting was organized by L. Marelli, Chairman of 
W.G. 11/4 and J.P. CGuignard, Chairman of W.G. II/S. The sponsor of the 
meeting was the ESA-ESRIN Earthnet Program Office. 
Business Meetings of all five Working Groups were held during the Commission 
II Symposium in Ottawa, Canada (August 30 - September 3, 1982). 
Joint Working Group II/1 and II/2 Meeting and Colloquium was held at the 
International Institute for Aerial Survey and Earth Sciences (ITC) in 
Enschede, The Netherlands, from 26th to 28th of October, 1983. The meeting 
was organized by B. Makarovic, Chairman of W.G. II/2 and M. Tariel, Secretary 
of W.G. II/2. The sponsor of the meeting was the International Institute for 
Aerial Survey and Earth Sciences (ITC). 
Joint Working Group II/3, II/4 and II/5 Meeting and Workshop was held at the 
Nihon University in Tokyo, Japan, on 9th and 10th of November, 1983. The 
meeting was organized by L. Marelli, Chairman of W.G. II/4 and J.P. Guignard, 
Chairman of W.G. II/5. The Program Committee was chaired by K. Tsuchiya of 
Chiba University. The sponsor of the meeting was the Remote Sensing Society 
of Japan. In connection with this meeting the Remote Sensing Society of Japan 
organized the "2nd International Symposium on Remote Sensing" on llth of 
November, 1983. 
Detailed reports on these meetings will be presented by the chairmen of the 
respective Working Groups at the Rio Congress. 
COMMISSION II SYMPOSIUM 
The symposium of Commission II on "Advances in Instrumentation for Processing 
and Analysis of Photogrammetric and Remotely Sensed Data" was held in Ottawa, 
Canada, from August 30th to September 3rd, 1982. The Symposium was sponsored 
by: The Canadian Institute of Surveying, The National Research Council of 
Canada, The Department of Energy, Mines and Resources (Canada Centre for 
Remote Sensing, and Surveys and Mapping Branch) and the Canadian Remote 
Sensing Society.