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:: [WA-5 WATER RESOURCES]

Document type:: Multivolume work

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Chapter

Title:: DETERMINATION AND SIGNIFICANCE OF SNOW BOUNDARIES ON GLACIERS. Harold Haefner

Document type:: Multivolume work

Structure type:: Chapter

291 into its major parts, are compiled in Tab. 2. A preliminary analysis of these measurements leads to the following conclusions: - On the Aletsch Glacier the highest ELA in all four seasons is found on the south- oriented Ewigschneefald - The order of sucession for the other tributaries is as follows: =Krambergfirn/Gletscherhornfim (SE aspect) = Jungfraufim (SE aspect) = Aletschfim (NE aspect) - The Gomer glacier is often partially covered with local clouds which hamper a precise mapping - The ELA on the Gorner Glacier in the central part of the "Valais" is approx. 250 m higher than the other ones. The ELA on the Rhone Glacier is approx. 100 m below the ones on the Aletsch Glacier. - The ELA is highest on all glaciers in 1986 (except NE-oriented Aletschfim) - A general "upward" trend can be recognized from 1985 to 1988. OUTLOOK The development of the ELA on an individual glacier as well as in the regional comparison reveals - for the time period under investigation - a surprisingly homogeneous and regular trend. But it has to be considered that all three glaciers belong to the same climatic zone, even though two of them are in a rather marginal location. It is obvious that more glaciers of different climatic zones have to be included in the monitoring project. Extensive correlations will have to be carried out with various ground measurements such as on weather, mass balance and run-off of the glaciers etc. To evaluate the AAR precisely it will become necessary to develop and operationalize a method to survey and measure the total area of each glacier by satellite remote sensing techniques. Furthermore it could be interesting to use other sensor techniques (thermal IR and SAR) for an additional characterization of the surface of the glacier. But the most important aspect remains the compilation and realization of a comprehensive longterm monitoring program. REFERENCES Baumgartner, M.F., 1987. Schneeschmelz- Abflussimulationen basierend auf Schnee- flachenbestimmungen mit digitalen Landsat- MSS und NOAA/AVHRR-Daten. Remote Sensing Series, Voi. 11, Dept, of Geography, Univ. of Zurich. Baumgartner, M.F., K. Seidel & J. Martinec, 1988. Toward snowmelt runoff forecast based on multisensor remote sensing information. IEEE Transaction on Geoscience and Remote Sensing, Voi. GE-25, No.6, p.746-750. Della Ventura, A., R. Rabagliati & R. Serandrei Barbero, 1987. Development of a satellite remote sensing technique for the study of alpine glaciers. Intern. Journal of Remote Sensing, Voi. 8, No. 2, p. 203-215. Fischer, St., 1989. Gletscherschneegrenz- bestimmung mit Hilfe von TM-Satellitendaten. Master Thesis (unpublished), Department of Geography, Univ. of Zurich. Haefner, H., 1990. Assessment and monito ring of the equilibrium-line-altitude (ELA) on glaciers for the determination of climatological changes. Paper, International Symp. "Remote Sensing and Water Resources", Enschede, Netherlands Haefner, H., 1989. Hydrological remote sen sing research with large-scale applications in western Europe. Proc. of the Third Int. Assembly, Baltimore, MD, May 1989, IHAS Pubi. No. 186, pp. 3-12. Haefner, H. & P. Laager , 1988. Monitoring of seasonal snow cover on glaciers. Proceedings, IGARSS' 88. Edinburgh, ESA- SP 2984, Paris, pp.443-445. Hall, D.K. & J. Martinec, 1985. Remote Sensing of Ice and Snow. Chapman and Hall,

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