Proceedings of Symposium on Remote Sensing and Photo Interpretation: Proceedings of Symposium on Remote Sensing and Photo Interpretation

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Multivolume work

Persistent identifier:: 842147969

Title:: Proceedings of Symposium on Remote Sensing and Photo Interpretation

Sub title:: October 7 - 11, 1974, Banff, Alberta, Canada

Year of publication:: 1974

Place of publication:: Ottawa, Ontario

Publisher of the original:: Canadian Inst. of Surveying

Identifier (digital):: 842147969

Language:: German

Other Title:: Nebentitel: Proceedings : Symposium on Remote Sensing and Photo Interpretation

Corporations:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Adapter:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Founder of work:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Other corporate:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Document type:: Multivolume work

Volume

Persistent identifier:: 84214806X

Title:: Proceedings of Symposium on Remote Sensing and Photo Interpretation

Sub title:: October 7 - 11, 1974, Banff, Alberta, Canada

Scope:: VII, 465 Seiten

Year of publication:: 1974

Place of publication:: Ottawa, Ontario

Publisher of the original:: Canadian Inst. of Surveying

Identifier (digital):: 84214806X

Illustration:: Illustration, Diagramme, Karten

Signature of the source:: T 15 B 1305

Language:: German

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

Corporations:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Adapter:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Founder of work:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Other corporate:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2015

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: WATER AND WETLANDS CHAIRMAN. - R. ELLEFSON

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: THE USE OF ERTS IMAGERY FOR LAKE CLASSIFICATION. F. L. Scarpace, R. E. Wade and L. T. Fisher

Document type:: Multivolume work

Structure type:: Chapter

259 THE USE OF ERTS IMAGERY FOR LAKE CLASSIFICATION F. L. Scarpace, R. E. Wade and L. T. Fisher University of Wisconsin Madison, Wisconsin U.S.A Data 4. ABSTRACT c ugust. The feasibility of using photographic representations of the ERTS imagery to classify lakes in the State of Wisconsin as to their trophic level was studied. Densitometric readings in band 5 of ERTS 70mm imagery were taken for all the lakes in Wisconsin greater than 100 acres (approx imately 1000 lakes). An algorithm has been developed from ground truth measurements to predict from satellite imagery an indicator of trophic light status. Quality . ERTS INTRODUCTION The Wisconsin Department of Natural Resources (DNR) is required to classify the lakes in the state as to their trophic level in response to the federal legislation "Federal Water Pollution Control Act Amendments Dm ' Pro- ; Sensing Ontario, of 1972," section 314. This project represents an attempt to evaluate the feasibility of using photographic imagery from the ERTS (Earth Resources Technology Satellite) to accomplish this classification. The ERTS satellite passes over the same location on the ground every 18 days. Each ERTS image covers a rectangle on the ground 115 miles by 115 miles. The satellite's sensor systems (multispectral scanner) gather data in four different wavelength bands simultaneously: Band 4 (.5-.6y); Band 5 (,6-.7y); Band 6 (.7-.8y); and Band 7 (.8-l.ly). Die Tool *gs. World, Densitometric readings in band 5 of ERTS 70mm imagery were taken for all lakes in Wisconsin greater than 100 acres (approximately 1000 lakes). For 37 of these lakes, DNR water quality ground truth data was correlated with density readings in all four ERTS bands. The lakes in the remainder of the state were classified as to the level of eutrophication by an algorithm developed by a statistical analysis of this correlation. METHODOLOGY This project involved four separate experiments: 1) Densitometric analysis of 37 lakes in each of the 4 ERTS bands using 70mm positive transparencies; this data was then correlated with secchi depth readings taken by the Wisconsin Department of Natural Resources; 2) Using specially developed computer programs and an interactive CRT terminal, ERTS digital tapes were accessed and the actual 64 scene brightness values sent back by the satellite were obtained for 14 of the above lakes; 3) A time series densitometric analysis of 20 lakes in southeastern Wisconsin on four different ERTS overflight dates; and 4) Densitometric analysis of approx imately 1000 lakes in Wisconsin greater than 100 acres on band 5 of ERTS 70mm imagery.

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fullscreen: Proceedings of Symposium on Remote Sensing and Photo Interpretation (Volume 1)

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