Therefore, a portion of the survey effort was devoted to postulating 

 the environment in which enforcement must be performed and to estimating 

 the characteristics of vessels of interest to the enforcement process 

 that affect their detection and classification by the remote sensing 

 techniques that were considered. This necessary postulation of a frame- 

 work for analysis involved some consideration of aspects of the enforce- 

 ment problem that are outside the assigned scope of the survey. Informa- 

 tion and comment in these areas are included, where appropriate, but it 

 should be recognized that these are the result of a cursory and incidental 

 examination of only parts of a very complex problem. They should not be 

 interpreted as indicative of the way we believe enforcement will or should 

 be performed. 



Because a great deal of the available remote sensing technology 

 has been developed for military purposes, it was necessary to use infor- 

 mation through the DoD SECRET level to adequately portray the capabilities 

 and limitations of various techniques. The main report, which is this 

 volume, is Unclassified with references, where appropriate, to supporting 

 information in a classified (SECRET) supplement, published as a separate 

 volume. In addition, it is possible that data developed by certain 

 military surveillance programs could contribute to enforcement of the 

 200-nmi fishing zone if appropriate access were available to the enforcing 

 activities. Due to the sensitive nature of these programs and the high 

 levels of security classification involved, consideration of this pos- 

 sibility is beyond the scope of this survey. 



In general, except where indicated otherwise, the technological 

 potential described in this report represents the present state of the 

 art. In all of the areas described, improved capabilities can be expected 

 in the future as the state of the art advances. This is particularly 

 true in rapidly advancing technical areas, such as satellites and 

 satellite-borne sensors. However, it is not possible to make specific 



