The SMAC operation can be directly executed by typing the following expression on the command line of the Main window:
OUTNAME |
= |
MapSMAC(Reflectance_rasmap, coefficient_file, true|false, optical_thickness, true|false, water_vapor, true|false, ozone_content, true|false, surface_pressure, true|false, solar_zenith_angle, true|false, solar_azimuth_angle, true|false, sensor_zenith_angle, true|false, sensor_azimuth_angle) |
where:
OUTNAME |
is an output name that will be used for the output raster map. The output map will contain the surface reflectance of the atmospherically corrected channel after SMAC calculations. |
MapSMAC |
|
is the command to start the SMAC operation. |
|
Reflectance_rasmap |
This is a raster map with reflectance values at the top of atmosphere (TOA) to which the SMAC atmospheric correction will be applied. |
coefficient_file |
is the full path to the ASCII file containing the sensor calibration coefficients. |
true|false |
indicates whether the optical_thickness is a raster map (true) or a single value (false). |
optical_thickness |
is a raster map or a single value with the optical thickness at 550 nm. |
true|false |
indicates whether the water_vapor is a raster map (true) or a single value (false). |
water_vapor |
is a raster map or a single value with the water vapor content. |
true|false |
indicates whether the ozone_content is a raster map (true) or a single value (false). |
ozone_content |
is a raster map or a single value with the ozone content. |
true|false |
indicates whether the surface_pressure is a raster map (true) or a single value (false). |
surface_pressure |
is a raster map or a single value with the surface pressure. |
true|false |
indicates whether the solar_zenith_angle is a raster map (true) or a single value (false). |
solar_zenith_angle |
is a raster map or a single value with the solar zenith angle. |
true|false |
indicates whether the solar_azimuth_angle is a raster map (true) or a single value (false). |
solar_azimuth_angle |
is a raster map or a single value with the solar azimuth angle. |
true|false |
indicates whether the sensor_zenith_angle is a raster map (true) or a single value (false). |
sensor_zenith_angle |
is a raster map or a single value with the sensor zenith angle. |
true|false |
indicates whether the sensor_azimuth_angle is a raster map (true) or a single value (false). |
sensor_azimuth_angle |
is a raster map or a single value with the sensor azimuth angle. |
When the definition symbol = is used, a dependent output map is created; when the assignment symbol := is used, the dependency link is immediately broken after the output map has been calculated.
See also:
Atmospheric Effect Correction (SMAC) : functionality