Proceedings of the Symposium on Global and Environmental Monitoring: Proceedings of the Symposium on Global and Environmental Monitoring

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Persistent identifier:: 856665355

Title:: Proceedings of the Symposium on Global and Environmental Monitoring

Sub title:: techniques and impacts ; September 17 - 21, 1990, Victoria Conference Centre, Victoria, British Columbia, Canada

Year of publication:: 1990

Place of publication:: Victoria, BC

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 856665355

Language:: English

Document type:: Multivolume work

Volume

Persistent identifier:: 856669164

Title:: Proceedings of the Symposium on Global and Environmental Monitoring

Sub title:: techniques and impacts; September 17 - 21, 1990, Victoria Conference Centre, Victoria, British Columbia, Canada

Scope:: XIV, 912 Seiten

Year of publication:: 1990

Place of publication:: Victoria, BC

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 856669164

Illustration:: Illustrationen, Diagramme, Karten

Signature of the source:: ZS 312(28,7,1)

Language:: English

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: International Society for Photogrammetry and Remote Sensing, Commission of Photographic and Remote Sensing Data

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2016

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: [THP-2 GIS INTEGRATION]

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: GIS, REMOTE SENSING AND VIDEO TECHNOLOGY INTEGRATION. by Frank Hegyi

Document type:: Multivolume work

Structure type:: Chapter

PROPOSED MULTI RESOURCE INVENTORY MODEL Basic components of a generalized multi resource inventory model include the following: • planimetric and/or topographic (base) maps and data • cadastre (legal and administrative) maps and data • forest resource inventory maps and data • non-forest resource inventory maps and data • socioeconomic maps and data Processes within the above categories generate a multi resource inventory data base. As soon as such data are compiled, there is a high probability that it will become out of date due to changes such as depletions or growth. Hence, two new components are introduced next into the generalized model: • projection over time with growth models • update with remote sensing These two processes yield a dynamic multi resource inventory data base, which may either become the new updated data base or used in applications. Due to recent advances in technology, new land information products can be generated, such as color enhanced three-dimensional thematic maps featuring alternative land use options. Geographic Information Systems (GIS), combined with mathematical models provide the tools to manipulate the current land information. This new generalized resource inventory model is capable of providing the essential land information to a wide range of clients, such as: • managers of forest resources • users of forest resources • service agencies • environment protection and conservation groups Details of the above processes may further be generalized as follows. ACQUISITION OF PLANIMETRIC AND/OR TOPOGRAPHIC MAPS AND DATA Current practices in Canada use maps and data which were collected over time, hence they contain a range of accuracy levels. As new planimetric and/or topographic maps become available, previously registered thematic forest inventory information may not fit the new base. Adjustments with GIS, such as stretching, "rubber sheeting" and other applicable techniques have proven to retain high levels of error. Hence it is recommended that as new and more accurate base maps become available, the multi resource inventory be acquired from new aerial photography which must then be registered to the new base map. ACQUISITION OF CADASTRAL MAPS AND DATA The major challenges in this process are the integration, with GIS, the data sources which represent different levels of accuracy. This is especially important in cases where the compiled boundaries may be subject to queries from the legal system. In addition, this process may obtain data from several agencies, using incompatible tolerance levels in terms of accuracy and amount of details. Once the necessary data is acquired, it must be kept current. Hence, cost effective and timely updating procedures must be an integral part of a multi resource inventory model. 594

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