Actes du Symposium International de la Commission VII de la Société Internationale de Photogrammétrie et Télédétection: Actes du Symposium International de la Commission VII de la Société Internationale de Photogrammétrie et Télédétection

Laidet, L.

Actes du Symposium International de la Commission VII de la Société Internationale de Photogrammétrie et Télédétection (Volume 2)

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Persistent identifier:: 1669258823

Title:: Actes du Symposium International de la Commission VII de la Société Internationale de Photogrammétrie et Télédétection

Sub title:: Toulouse, 13 - 17 Septembre 1982

Year of publication:: 1982

Place of publication:: Toulouse

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 1669258823

Language:: English

Editor:: Laidet, L.

Corporations:: International Society for Photogrammetry and Remote Sensing, Commission VII, Interpretation of Data

Adapter:: International Society for Photogrammetry and Remote Sensing, Commission VII, Interpretation of Data

Founder of work:: International Society for Photogrammetry and Remote Sensing, Commission VII, Interpretation of Data

Other corporate:: International Society for Photogrammetry and Remote Sensing, Commission VII, Interpretation of Data

Document type:: Multivolume work

Volume

Persistent identifier:: 1669259897

Title:: Actes du Symposium International de la Commission VII de la Société Internationale de Photogrammétrie et Télédétection

Scope:: XV, 415 Seiten

Year of publication:: 1982

Place of publication:: Toulouse

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 1669259897

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(24,7,2)

Language:: English

Additional Notes:: Erscheinungsdatum des Originals ist ermittelt.

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

Editor:: Laidet, L.

Corporations:: International Society for Photogrammetry and Remote Sensing,, Commission VII, Interpretation of Data

Adapter:: International Society for Photogrammetry and Remote Sensing,, Commission VII, Interpretation of Data

Founder of work:: International Society for Photogrammetry and Remote Sensing,, Commission VII, Interpretation of Data

Other corporate:: International Society for Photogrammetry and Remote Sensing,, Commission VII, Interpretation of Data

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2019

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: VENDREDI !/ SEPTEMBRE 1983 - FRIDAY SEPTEMBER 17, 1983 9.00 - 10.30 RAPPORTS DES GROUPES DE TRAVAIL - WORKING GROUP REPORTS

Document type:: Multivolume work

Structure type:: Chapter

Section

Title:: RAPPORT DU GROUPE DE TRAVAIL VII-8 W. G. VII-8 Report "GLACE-ET- NEIGE" - "Ice and snow" PAR C. MATZLER, R. K. HAWKINS

Document type:: Multivolume work

Structure type:: Section

RAPPORT DU GROUPE DE TRAVAIL VII-8 W. G. VII-8 Report "GLACE-ET- NEIGE" "Ice and snow" PAR C. MATZLER R.K. HAWKINS Several papers were given which discussed remote sensing techniques for ice and snow covering mainly microwaves but also IR and more traditional methods. This report is divided into sea ice and snow as topics and further by the applica- tion of active and passive techniques. SNOW With two frequencies, microwave radiometers can determine areal extent, estimate water equivalent and detect the onset of melt metamorphism. More accurate water equivalent measurements and the classification of snow types will be possible when two polarizations and three frequencies are employed. Several unusual signatures were however observed which were related to snow metamorphosis. These results were obtained with ground-based measurements and further shown to give good agreement with independent snow observations when NIMBUS 7, SMMR data were analyzed. The areal extent of wet snow in mountainous terrain can be determined by use of X-Band radar imagery. SEA ICE Skilled interpreters using image brightness, context, floe shape and texture as clues from high resolution X-Band SAR, can separate a range of ice forms during cold winter conditions. Radar contrasts alone may be used to separate old ice from young ice, but with the addition of a p-wave radiometer, much more distinct clusters exist which have been successfully tested using MAP classifiers. There are however a large variety of ice forms and conditions, which complicate this simple situation. Examples are the metamorphosis which occurs during the melt season and the wide range of conformations and compactions encóuntered in the Marginal Ice Zone (MIZ). Passive microwave radiometers have shown good classification potential in young and new ice forms studied in the MIZ. Ice concentration analysis using two or more frequencies have demonstrated performances of + 3% (ice-water) and + 10% f for spa The sam shelves SAR usi New cor measure Water p MISCELL - Coher in an o though Multi-1 - Disti which e machine - There passive - Activ > L-Ban - ISPRS with th CONCLUS The cry Several dynamic shown t questio

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