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Last data update: 2014.03.03
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R: Get or access internal LUT values used by various functions
Get or access internal LUT values used by various functions
Description
Get internal look-up table (LUT) values from sysdata.rda which have been
compiled using data-raw/lut_data.R. Metadata is stored in lut$meta.
Usage
lutInfo()
lutInfoBandsFromSID(sid)
lutInfoSensorFromSID(sid)
lutInfoBCDEFromBID(sid, bid)
lutInfoBIDFromBCDE(bcde, sid)
lutInfoRSRromSID(sid)
lutInfoSIDfromFilename(files)
lutInfoSGRPfromFilename(file)
Arguments
sid |
Sensor id as returned e.g. from lutInfoSensorFromSID.
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bid |
Band id as returned e.g. from lutInfoBIDFromBCDE.
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bcde |
Band code as returned e.g. from lutInfoBCDEFromBID.
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files |
Filename (or filepath) of one or more remote sensing data
filenames
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file |
Filename of a remote sensing data file
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Details
The functions above return the following information:
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lutInfoBandsFromSID returns the band info block.
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lutInfoBCDEFromBID returns the band code.
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lutInfoBIDFromBCDE returns the band ids.
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lutInfoRSRromSID returns the relative spectral response (rsr)
for the sensor.
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lutInfoSensorFromSID returns the sensor name.
The LUT contains the following information:
- l4_band_wl
Minimum/maximum wavelength for Landsat 4 bands taken from the
band info
of the USGS Landsat FAQ.
- l5_band_wl
Minimum/maximum wavelength for Landsat 5 bands taken from the
band info
of the USGS Landsat FAQ.
- l7_band_wl
Minimum/maximum wavelength for Landsat 7 bands taken from the
band info
of the USGS Landsat FAQ.
- l8_band_wl
Minimum/maximum wavelength for Landsat 8 bands taken from the
band info
of the USGS Landsat FAQ.
- l7_rsr
Landat 7 rsr (nm-1) taken from taken from the
spectral viewer
of the USGS Landsat FAQ.
- l8_rsr
Landat 8 rsr (nm-1) taken from taken from the
spectral viewer
of the USGS Landsat FAQ.
- solar
Solar irradiance (W m-2 nm-1) taken from the
National Renewable
Energy Laboratory.
- l7_esun
Tabulated ESun values from
tab 11.3 (Thuillier spectrum)
of the Landsat7 handbook.
- l5_esun
Tabulated ESun values from
Chander
G, Markham B (2003) Revised Landsat-5 TM radiometric calibration procedures
and postcalibration dynamic ranges. IEEE Transaction on Geoscience and
Remote Sensing 41/11, doi:10.1109/LGRS.2007.898285.
- l4_esun
Tabulated ESun values from
Chander
G, Markham B (2003) Revised Landsat-5 TM radiometric calibration procedures
and postcalibration dynamic ranges. IEEE Transaction on Geoscience and
Remote Sensing 41/11, doi:10.1109/LGRS.2007.898285.
Value
List containing several data.frame objects with LUT values.
Functions
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lutInfoBandsFromSID:
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lutInfoSensorFromSID:
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lutInfoBCDEFromBID:
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lutInfoBIDFromBCDE:
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lutInfoRSRromSID:
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lutInfoSIDfromFilename:
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lutInfoSGRPfromFilename:
Examples
ls_li <- lutInfo()
str(ls_li)
Results
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providing 
.