scholarly journals Spectral characterization of the LANDSAT Thematic Mapper sensors

1985 ◽  
Vol 6 (5) ◽  
pp. 697-716 ◽  
Author(s):  
BRIAN L. MARKHAM ◽  
JOHN L. BARKER
Keyword(s):  
Thematic Mapper ◽  
Spectral Characterization ◽  
Landsat Thematic Mapper

scholarly journals Characterization of Snow and Ice Reflectance Zones On Glaciers Using Landsat Thematic Mapper Data

1987 ◽  
Vol 9 ◽  
pp. 104-108 ◽  
Author(s):  
D.K. Hall ◽  
J.P. Ormsby ◽  
R.A. Bindschadler ◽  
H. Siddalingaiah
Keyword(s):  
Surface Temperature ◽  
Area Ratio ◽  
Thematic Mapper ◽  
Landsat Thematic Mapper ◽  
Ablation Area ◽  
Thematic Mapper Data ◽  
Glacier System ◽  
Accumulation Area Ratio ◽  
Snow And Ice

Landsat Thematic Mapper (TM) data have been analyzed to study the reflectivity characteristics of three glaciers: the Grossglockner mountain group of glaciers in Austria and the McCall and Meares Glaciers in Alaska, USA. The ratio of TM band 4 (0.76–0.90 μm) to TM band 5 (1.55–1.75 μm) was found to be useful for enhancing reflectivity differences on the glaciers. Using this ratio, distinct zones of similar reflectivity were noted on the Grossglockner mountain group of glaciers and on the Meares Glacier; no distinct zones were observed on the McCall Glacier. On the TM subscene containing the Grossglockner mountain group of glaciers, 28.2% of the glacierized area was determined to be in the zone corresponding most closely to the ablation area, and 71.8% with the location of the accumulation area. Using these measurements, the glacier system has an accumulation area ratio (AAR) of approximately 0.72. Within the accumulation area, two zones of different reflectivity were delineated. Radiometric surface temperatures were measured using TM band 6 (10.4–12.5 μm) on the Grossglockner mountain group of glaciers and on the Meares Glacier. The average radiometric surface temperature of the Grossglockner mountain group of glaciers decreased from 0.9 ± 0.34 °C in the ablation area, to −0.9 ± 0.83 C in the accumulation area.

Characterization of lava-flow degradation in the Pisgah and Cima volcanic fields, California, using Landsat Thematic Mapper and AIRSAR data

1993 ◽  
Vol 105 (2) ◽  
pp. 175-188 ◽  
Author(s):  
R. E. ARVIDSON ◽  
M. K. SHEPARD ◽  
E. A. GUINNESS ◽  
S. B. PETROY ◽  
J. J. PLAUT ◽  
...  
Keyword(s):  
Lava Flow ◽  
Thematic Mapper ◽  
Landsat Thematic Mapper ◽  
Volcanic Fields

scholarly journals Spatio-temporal environmental characterization of the Pontal River Basin in the State of Pernambuco

2019 ◽  
Vol 11 (1) ◽  
pp. 34-45
Author(s):  
Iug LOPES ◽  
Clovis Manoel Carvalho RAMOS ◽  
Brauliro Gonçalves LEAL ◽  
Douglas Alberto de Oliveira SILVA
Keyword(s):  
River Basin ◽  
The State ◽  
Thematic Mapper ◽  
Landsat Thematic Mapper ◽  
Environmental Characterization ◽  
Spatio Temporal

As zonas rurais e urbanas estão passando por transformações do uso do solo de forma significativa. Estas mudanças têm afetado o uso da terra, principalmente nas áreas marginas às urbanas. É ao longo destas áreas onde o processo de expansão urbana entra em conflito com o uso da terra para fins agrícolas. Um recurso inestimável neste contexto é o sensoriamento remoto, que aparece como uma ferramenta de avaliação dos processos de transformação territórial. Técnicas de observação de dados adquiridos por satélites em variação temporal e espacial possuem potencial de detectar, identificar e mapear as mudanças no uso da terra. O objetivo do trabalho foi realizar uma caracterização atual do uso da terra e análise espaço-temporal das modificações ao longo dos períodos de 2000 a 2010, 2010 a 2015 e 2000 a 2015, na Bacia do Rio Pontal, usando dados Landsat Thematic Mapper (TM). De acordo com os resultados obtidos, pode-se concluir que na região estudada houve um crescimento considerável de área destinada à agricultura irrigada, redução das áreas de caatinga densa ou substituição da mesma por caatinga aberta e solo exposto e por fim se observou a redução dos corpos hídricos da região.

scholarly journals Characterization of Snow and Ice Reflectance Zones On Glaciers Using Landsat Thematic Mapper Data

1987 ◽  
Vol 9 ◽  
pp. 104-108 ◽  
Author(s):  
D.K. Hall ◽  
J.P. Ormsby ◽  
R.A. Bindschadler ◽  
H. Siddalingaiah
Keyword(s):  
Surface Temperature ◽  
Area Ratio ◽  
Thematic Mapper ◽  
Landsat Thematic Mapper ◽  
Ablation Area ◽  
Thematic Mapper Data ◽  
Glacier System ◽  
Accumulation Area Ratio ◽  
Snow And Ice

Landsat Thematic Mapper (TM) data have been analyzed to study the reflectivity characteristics of three glaciers: the Grossglockner mountain group of glaciers in Austria and the McCall and Meares Glaciers in Alaska, USA. The ratio of TM band 4 (0.76–0.90 μm) to TM band 5 (1.55–1.75 μm) was found to be useful for enhancing reflectivity differences on the glaciers. Using this ratio, distinct zones of similar reflectivity were noted on the Grossglockner mountain group of glaciers and on the Meares Glacier; no distinct zones were observed on the McCall Glacier. On the TM subscene containing the Grossglockner mountain group of glaciers, 28.2% of the glacierized area was determined to be in the zone corresponding most closely to the ablation area, and 71.8% with the location of the accumulation area. Using these measurements, the glacier system has an accumulation area ratio (AAR) of approximately 0.72. Within the accumulation area, two zones of different reflectivity were delineated. Radiometric surface temperatures were measured using TM band 6 (10.4–12.5 μm) on the Grossglockner mountain group of glaciers and on the Meares Glacier. The average radiometric surface temperature of the Grossglockner mountain group of glaciers decreased from 0.9 ± 0.34 °C in the ablation area, to −0.9 ± 0.83 C in the accumulation area.

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