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:: [FA-3 FOREST DAMAGE]

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: Comparison of Landsat Thematic Mapper and Airborne Thematic Mapper Simulator Data for Forest Damage Assessment. C. Banninger

Document type:: Multivolume work

Structure type:: Chapter

Comparison of Landsat Thematic Mapper and Airborne Thematic Mapper Simulator Data for Forest Damage Assessment C. Banninger Institute for Image Processing and Computer Graphics Joanneum Research, Graz, Austria Abstract Both Landsat Thematic Mapper (TM) and NS001 Thematic Mapper Simulator (TMS) data gave overall comparable results in discriminating stress conditions in a Norway spruce forest, with the higher spatial resolution NS001 TMS data more accurately delineating stressed canopy areas, but at the inclusion of numerous false anomalies associated with non stress- related canopy features. For canopies of high structural or compositional variability, the larger ground area covered by Landsat TM resolution cells mitigates the high spectral variability associated with small-scale irregularities in a canopy and thereby permits a more accurate assessment of the condition of a vegetation cover. Key Words: Landsat Thematic Mapper, NS001 Thematic Mapper Simulator, Norway Spruce Forest, Stress. Introduction Since its launch in 1982, Landsat Thematic Mapper (TM) data have been routinely employed in monitoring the state of health of forested regions world-wide. The sensor’s six reflectance bands covering the visible to shortwave infrard spectral region have proven partic ularly useful in detecting damage in forests of broad areal extent, such as the boreal forests of Canada and Scandinavia, but the 30 m spatial resolution of TM data has constrained their effectiveness and utilisation in the commonly mixed or mosaicked forests of central Europe, with their often broken or patchy canopy cover. Airborne sensor systems, such as the Daedalus Airborne Thematic Mapper (ATM) or NASA’s NS001 Thematic Mapper Simulator (TMS), provide equivalent Landsat TM spectral band coverage, but at a spatial resolution (generally 5-15 m) that is more commensurate to the type, distribution, and areal extent of forests in central Europe. The ability of Landsat Thematic Mapper and NS001 Thematic Mapper Simulator data to discriminate between damaged and healthy trees in a stressed Norway spruce forest situated in southeastern Austria was evaluated with respect to TM and TMS data acquired during the mid-summer growing season. Single and transformed spectral data were co-registered with ground-collected data used to define the degree and extint of forest damagee at the study site and relationships derived between the different data sets to determine the effectiveness of each sensor system for damage assessment. 857

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