Identification and Characterization of Mining Waste Using Landsat Thematic Mapper Imagery, Cherokee County, Kansas

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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The use of Landsat Thematic Mapper imagery for analysing lithology and structure of Korucu-Dugla area in western Turkey

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts ◽

10.1016/0148-9062(96)81848-1 ◽

1996 ◽

Vol 33 (6) ◽

pp. A262

Keyword(s):

Thematic Mapper ◽

Landsat Thematic Mapper ◽

Western Turkey ◽

Thematic Mapper Imagery

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Assessing techniques for estimating the extent of mangroves: topographic maps, aerial photographs and Landsat TM images

Marine and Freshwater Research ◽

10.1071/mf00052 ◽

2001 ◽

Vol 52 (5) ◽

pp. 787 ◽

Cited By ~ 42

Author(s):

F. J. Manson ◽

N. R. Loneragan ◽

I. M. McLeod ◽

R. A. Kenyon

Keyword(s):

Thematic Mapper ◽

Aerial Photographs ◽

Landsat Thematic Mapper ◽

Pixel Resolution ◽

Topographic Data ◽

Linear Extent ◽

Cape York ◽

Ground Truthing ◽

Remote Sensing Techniques ◽

Thematic Mapper Imagery

Coastal habitats are critical to the sustained production of many fisheries. It is important, therefore, that fishery managers obtain accurate estimates of the extent of these habitats. This study investigated three methods of estimating the linear extent and area of mangroves (commercially available topographic data, aerial photographs and Landsat Thematic Mapper satellite imagery) in two regions in northern Australia: the Joseph Bonaparte Gulf (in particular, the Berkeley and Lyne Rivers) with typically narrow fringes of mangroves (<50 m wide), and the Embley River on Cape York Peninsula,with much broader mangrove stands (50–1000 m wide). Ground-truthing verified that aerial photographs provided the most accurate estimates of extents of mangroves in all rivers,because of their high spatial resolution (2 m). Landsat Thematic Mapper imagery gave good estimates of the area of habitats, but, because of the 30 m pixel resolution, it underestimated the linear extent in places where the mangrove fringe was narrow. Topographic data gave good estimates of the extent of mangroves where the forests were more extensive and less linear in shape, but were very poor otherwise at this scale. These findings have implications for the use of remote sensing techniques in ecological studies in these regions.

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