Mapping of Local-scale Thermal Variations in Landsat Images for Risk Assessment of Forest Regeneration Failures |
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Page 29
... Dala volcanics , intermediate Dala porphyrites and acid Dala porphyries ( Fig . 3 after Lundqvist 1968 and SGU 1987 ) . Different rocks weather differently . This is due to two factors : the tendency to form fine soils and the existence ...
... Dala volcanics , intermediate Dala porphyrites and acid Dala porphyries ( Fig . 3 after Lundqvist 1968 and SGU 1987 ) . Different rocks weather differently . This is due to two factors : the tendency to form fine soils and the existence ...
Page 30
... Dala porphyrites Dala porphyries Diabas Amphibolite Leptite Jotnian sandstone Granitoid Intrusions with syenite porphyry Lakes Figure 3. Simplified geological maps of a ) the test area for the daytime thermal study ( modified after ...
... Dala porphyrites Dala porphyries Diabas Amphibolite Leptite Jotnian sandstone Granitoid Intrusions with syenite porphyry Lakes Figure 3. Simplified geological maps of a ) the test area for the daytime thermal study ( modified after ...
Page 31
... Dala porphyrites and acid Dala porphyries ( Fig . 3 ) . The mineralogical composition of Rätan granite is , from the vegetation point of view , better than granite in general and its capacity for chemical weathering is quite good , a ...
... Dala porphyrites and acid Dala porphyries ( Fig . 3 ) . The mineralogical composition of Rätan granite is , from the vegetation point of view , better than granite in general and its capacity for chemical weathering is quite good , a ...
Common terms and phrases
air temperature Åmot amount of thicket analysis aspect and slope atmospheric bedrock clear cut areas clear cut stands climate cold air coniferous forest conifers Dala porphyries deciduous depressions digital elevation data digital elevation model digital terrain model field layer forest stands forest types frost influence of topography infrared IR/R ratio km² lakes land cover categories Landsat TM Landsat-5 located Lundén Lundmark mean digital counts mean temperatures measured mire complexes night nighttime thermal data nighttime thermal image nighttime thermal study Norway spruce object Odin Pinus contorta pixels plants radiance radiant exitance radiative cooling radiosonde regeneration areas satellite data sensor showed slope angle solar spatial resolution spectral stands subjected subjected to beeting surface temperatures T-sum Table Tamm and Wadman temperature difference temperature patterns terrain parameters test area test sites thermal band thermal image thermal inertia thermal patterns thermal radiation thermography TM band trees Vaccinium values variations vegetation wavelength