The influence of topography on the forest surface temperature retrieved from Landsat TM, ETM C and ASTER thermal channels

0340340 - ÚVGZ 2010 RIV NL eng J - Článek v odborném periodiku
Hais, M. - Kučera, Tomáš
The influence of topography on the forest surface temperature retrieved from Landsat TM, ETM C and ASTER thermal channels.
Isprs Journal of Photogrammetry and Remote Sensing. Roč. 64, č. 6 (2009), s. 585-591. ISSN 0924-2716. E-ISSN 1872-8235
Výzkumný záměr: CEZ:AV0Z60870520
Klíčová slova: Landsat * surface temperature * topography
Kód oboru RIV: EH - Ekologie - společenstva
Impakt faktor: 2.308, rok: 2009

The assessment of topography influence on the surface temperature (ST) of spruce forest was done in the central part of the Sumava Mountains, Czech Republic. Landsat scenes ETMC and TM, and TERRA ASTER scene were used. The different spatial (60,90, 120 m) and/or radiometric (8,12 bits) resolutions anabled the accuracy of surface temperature. Removing forest buffer zones resulted in greater statistical significance (approximately by 25-40%). The optimal width of forest edge removed was determined to be 90 m. The resulting explained variability (R2) was 0.57, 0.52, 0.47 for ETMC , ASTER, and TM, respectively. The potential use of ST modeling is to identify temperature anomalies caused by different types of forest disturbance (e.g.harvesting, disease, insect attack) or changes in the condition of stands (e.g. water stress).
Trvalý link: http://hdl.handle.net/11104/0183605