scholarly journals Automated mapping of mineral groups and green vegetation from Landsat Thematic Mapper imagery with an example from the San Juan Mountains, Colorado

2013 ◽  
Author(s):  
Barnaby W. Rockwell
Keyword(s):  
Thematic Mapper ◽  
San Juan ◽  
Landsat Thematic Mapper ◽  
Automated Mapping ◽  
San Juan Mountains ◽  
Green Vegetation ◽  
Thematic Mapper Imagery

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

2001 ◽  
Vol 52 (5) ◽  
pp. 787 ◽  
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.

Use of Landsat thematic Mapper imagery as mineral prospecting tool in the tin province of Goias, Brazil

1996 ◽  
Vol 11 (1) ◽  
pp. 61-69 ◽  
Author(s):  
Raimundo Almeida Filho ◽  
Ícaro Vitorello ◽  
Virginia R.M. Correia
Keyword(s):  
Thematic Mapper ◽  
Landsat Thematic Mapper ◽  
Thematic Mapper Imagery ◽  
Mineral Prospecting
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