Arctic GIS Workshop Poster Abstract

22-24 January 2001
Bell Harbor International Conference Center
Seattle, Washington

Accessing and Combining Distributed, Disparate Data Sets over the World Wide Web, II: Browsing and Updating Remote Data Bases through use of the OGC-compliant Web Mapping Protocol and ISO Self-Defining Structures

Herman Varma¹ and Ron Macnab^2
1 Canadian Hydrographic Service, Dartmouth NS
² Canada, Geological Survey of Canada, Dartmouth NS, Canada

Designed for users whose needs range from simple visualization to advanced data manipulation, this methodology uses OGC Web mapping protocol in conjunction with RDBMS-based search and extract engines which retrieve information from remote storage sites, and which combine and reformat the retrieved information for onward transmission to client sites. According to client needs, the information can be re-packaged in a JPEG format for simple browsing, or in a Self Defining Structure (SDS) for a more advanced application. The compact nature of the JPEG format lends itself to the wireless transmission of imagery to a palmtop computer, whereas the SDS approach is suited to the non-wireless transmission of substantial data sets to more a more powerful class of computer. Participating data storage sites require the local implementation of a web mapping protocol through the installation of appropriate software.