File:P217r75 5t19930624 bicas rgb bandas 432.png

LANDSAT5 Satellite View of Bicas,Minas Gerais,Brazil in 1993-06-24 (RGB=bands 4,3,2), with 30m resolution per pixel with no special filters applied.

In this composite, the dense vegetation is red (bright red corresponds predominantly to areas with dense wood covering), deforested areas and grass are brown, and greenish areas correspond predominantly to human artifacts (buildings, houses, roads) and also to naked land areas. Bluish areas correspond to lakes and volumes of water (pay attention to some blue dots to the east and south of the city of Bicas). It is possible to easily spot Bicas as a greenish area in the centre of the image, and the neighbour city Guarará as a thin "half moon" linked to the southeast of Bicas. The big strong green spot in the middle of Bicas most probably corresponds to the top of the "Alto das Brisas" hill, where there is a large proportion of naked land. This picture covers roughly 14400m west-east and 10800m north-south. The centre of the picture is located around Latitude 21S43'20 / Longitude 43W03'30.

Source: http://glcf.umiacs.umd.edu/data/landsat/ The source for this composite picture was the "Global Land Cover Facility", http://www.landcover.org archive copy at the Wayback Machine. Publisher: U.S. Geological Survey. Intellectual Property Rights: USGS & NASA; use is free to all; The U.S. Government holds the ultimate ownership. See USGS Citation for further details. http://edc.usgs.gov/about/customer/citation.html

The individual band frequencies 3,1,2 corresponding to the RGB colors, with resolution of 30m per pixel (according to the band specifications of the TM sensor (http://www.eurimage.com/products/landsat.html) of the LANDSAT5 satellite (http://landsat.gsfc.nasa.gov/education/compositor/ archive copy at the Wayback Machine), { Band Number Wavelength Interval Spectral Response 1 0.45-0.52 µm Blue-Green 2 0.52-0.60 µm Green 3 0.63-0.69 µm Red 4 0.76-0.90 µm Near IR 5 1.55-1.75 µm Mid-IR 6 10.40-12.50 µm Thermal IR 7 2.08-2.35 µm Mid-IR }), were made available by the source above, for free use, in the address http://glcfapp.umiacs.umd.edu:8080/esdi/ftp?id=14492 (also in ftp://ftp.glcf.umiacs.umd.edu/glcf/Landsat/WRS2/p217/r075/p217r75_5t19930624.TM-EarthSat-Orthorectified/).

and then further processed by Marcus Cunha Granado (filtering, clipping, band composition), resulting in this picture from the personal archives.

METADATA FILE (ARQUIVO p217r75_5t19930624.met)

IMAGE_ID P217R75_5T19930624 PATH 217 ROW 75 DATE 1993/06/24 FILE_FORMAT GEOTIFF DATA_FORMAT BYTE ROW_COUNT 7866 COL_COUNT 8377 ROW_START 1 COL_START 1 PLATFORM LANDSAT5 SENSOR TM PROJECTION UTM23 DATUM WGS84 UNITS METERS X_START 5.7701100000E+05 Y_START -2.2869255000E+06 X_INCREMENT 2.8500000000E+01 Y_INCREMENT -2.8500000000E+01

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