R: Get or access internal LUT values used by various functions

lutInfo {satellite} | R Documentation

## 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`.
`bid` | Band id as returned e.g. from `lutInfoBIDFromBCDE`.
`bcde` | Band code as returned e.g. from `lutInfoBCDEFromBID`.
`files` | Filename (or filepath) of one or more remote sensing data filenames
`file` | Filename of a remote sensing data file

### Details

The functions above return the following information:

- `lutInfoBandsFromSID` returns the band info block.

- `lutInfoBCDEFromBID` returns the band code.

- `lutInfoBIDFromBCDE` returns the band ids.

- `lutInfoRSRromSID` returns the relative spectral response (rsr) for the sensor.

- `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, 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

- `lutInfoBandsFromSID`:

- `lutInfoSensorFromSID`:

- `lutInfoBCDEFromBID`:

- `lutInfoBIDFromBCDE`:

- `lutInfoRSRromSID`:

- `lutInfoSIDfromFilename`:

- `lutInfoSGRPfromFilename`:

### Examples

    ls_li <- lutInfo()
    # str(ls_li)

[Package satellite version 1.0.1 Index]