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- ...for atmospheric effects (absorption or scattering) and in ''Top of Canopy Reflectance'' (ToCR) which introduces a "correction" for atmospheric effects. ...osphere Radiance'' values. Spectral Radiance values are then converted to Reflectance values based on various acquisition related parameters. Note, ''Spectal Rad ...16 KB (2,271 words) - 21:19, 15 August 2016
- ...for atmospheric effects (absorption or scattering) and in ''Top of Canopy Reflectance'' (ToCR) which introduces a "correction" for atmospheric effects. ...spectral Radiance values are an important input for the equation to derive Reflectance values. Note, ''Spectal Radiance'' is the measure of the quantity of radiat ...19 KB (2,541 words) - 13:27, 8 April 2020
- ...for atmospheric effects (absorption or scattering) and in ''Top of Canopy Reflectance'' (ToCR) which introduces a "correction" for atmospheric effects. ...spectral Radiance values are an important input for the equation to derive Reflectance values. Note, ''Spectal Radiance'' is the measure of the quantity of radiat ...21 KB (2,939 words) - 10:05, 4 December 2018
- ...age using the {{cmd|i.atcorr}} module in GRASS GIS and convert radiance to reflectance values ...>0</code>, since reflectance is always positive. If you encounter negative reflectance values, you have a "cornichon" (pickle in English ;-0). This means that the ...17 KB (2,420 words) - 21:11, 25 September 2024
- * {{cmd|i.atcorr}} → correct top of atmosphere to surface reflectance - see also the [[Atmospheric correction]] wiki page * {{cmd|i.topo.corr}} → used to topographically correct reflectance from imagery files, e.g. obtained with {{cmd|i.landsat.toar}}, using a sun ...18 KB (2,361 words) - 10:31, 4 December 2018
- * '''Level-2A''' product provides Bottom Of Atmosphere (BOA) reflectance images derived from the associated Level-1C products. Therefore, each Level ...set when running the command to indicate that the input is already in TOA reflectance. Finally, this is how the command would look like to apply atmospheric corr ...32 KB (4,993 words) - 13:50, 17 February 2021
- '''Reflection/radiance-at-sensor and surface reflectance''' ...). The atmospherically corrected sensor data represent surface {{wikipedia|reflectance}}, which ranges theoretically from 0 % to 100 %. Note that this level of da ...16 KB (2,223 words) - 05:02, 2 December 2023
- ...will transform the top-of-the-atmosphere radiance values to top-of-canopy reflectance values using predefined information on the aerosol content and atmospheric * [http://modis-sr.ltdri.org/ Land Surface Reflectance Science Computing Facility website - 6S] ...9 KB (1,439 words) - 18:34, 28 November 2013
- #3 - DN to Top of Atmosphere reflectance (i.landsat.toar) #4 - TOA reflectance to Surface reflectance (i.atcorr) ...17 KB (2,568 words) - 21:30, 1 December 2023
- ...). The atmospherically corrected sensor data represent surface {{wikipedia|reflectance}}, which ranges theoretically from 0 % to 100 %. Note that this level of da * {{cmd|i.landsat.toar}} - Calculates top-of-atmosphere radiance or reflectance and temperature for Landsat MSS/TM/ETM+/OLI ...15 KB (2,115 words) - 10:06, 4 December 2018
- Process all AVIRIS radiance tar.gz into reflectance. # 4 - Radiance to Surface reflectance (i.atcorr) ...13 KB (1,811 words) - 22:01, 21 December 2023
- ...rainfall, concentration of pollutants in soil, water or air, land surface reflectance (satellite imagery), etc. Examples of absolute values are number of inhabit ...8 KB (1,171 words) - 00:38, 29 November 2016
- Nevertheless, as shown in the examples using MODIS surface reflectance products (read below) in which the range of the bands varies significantly, = Examples using MODIS surface reflectance products = ...27 KB (3,020 words) - 15:00, 28 December 2014
- Process all HYPERION radiance .zip into reflectance. # 4 - Radiance to Surface reflectance (i.atcorr) ...17 KB (2,365 words) - 13:28, 3 December 2023
- * [http://www.grassbook.org/neteler/rs/modis_reflectance/ MODIS/Terra Surface Reflectance Daily L2G Global 500m] - ''8 Aug 2002 - true color image composite. Part of ...10 KB (1,590 words) - 16:00, 9 November 2013
- ...Image Processing Environment (GIPE) has USLE, Energy-balance and radiance-reflectance correction models. (r.hydro.CASC2D - a physically-based, distributed, raste ...11 KB (1,665 words) - 16:47, 1 March 2024
- ...Image Processing Environment (GIPE) has USLE, Energy-balance and radiance-reflectance correction models. ...eters. This module takes Modis, Aster, Landsat or AVHRR individual surface reflectance bands to calculate Albedo. This module is a precursor to r.sun or any Ener ...38 KB (5,977 words) - 21:40, 16 June 2016
- Surface Albedo is the integrated 0.3-3 micro-meters reflectance, it reflects the shortwave energy coming from the sun by 5% on oceans, 15-2 ...12 KB (1,850 words) - 08:01, 18 December 2023
- * [http://modis-sr.ltdri.org/ Land Surface Reflectance Science Computing Facility website - 6S] ...17 KB (2,483 words) - 14:47, 28 July 2016
- ...Image Processing Environment (GIPE) has USLE, Energy-balance and radiance-reflectance correction models. :* i.dn2ref.l7, r.dn2ref.ast create top of atmosphere reflectance for Landsat 7ETM+ and ASTER. These modules also have a flag for radiance ou ...75 KB (11,828 words) - 21:41, 16 June 2016