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:: [TP-3 OCEAN/COASTAL ZONE MONITORING]

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: A DIGITAL SURVEY TECHNIQUE FOR REMOTE SENSING OF COASTAL SCHOOLING FISH. Gary A. Borstad, David A. Hill, Randy C. Kerr Lynne L. Armstrong, Brian S. Nakashima

Document type:: Multivolume work

Structure type:: Chapter

I 96 A DIGITAL SURVEY TECHNIQUE FOR REMOTE SENSING OF COASTAL SCHOOLING FISH Gary A. Borstad, David A. Hill, Randy C. Kerr Lynne L. Armstrong, Brian S. Nakashima ABSTRACT One aspect of managing near-shore schooling fish stocks such as capelin (Mallotus villosus) and herring (Clupea harengus pallasi) is the estimation of a relative abundance index to verify annual fluctuations in stock size. We are developing a new digital survey technique using a newly developed Compact Airborne Spectrographic Imager (CASI) operating in the visible range, which when operational will be a great improvement on photographic or visual surveys. In this paper we show the spectral signature of schools of both species and of their natural background, and optimized bands for multi-spectral imaging. Simple image processing procedures are then used to calculate the school areas on several schools and the areas compared to those derived from aerial photography. Compared to aerial photography, digital remote sensing of fish schools offers several advantages including rapid turn around of results, digital signal processing and archiving, as well as the possibility of studies involving the behaviour of fish to other parameters also remotely measurable such as phytoplankton (via chlorophyll fluorescence or the blue/green colour), sediment concentration, oil slicks, and water mass boundaries.

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fullscreen: Proceedings of the Symposium on Global and Environmental Monitoring (Part 1)

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