Various questions on ATCOR-4

[rese_support]

We have a few easy questions that I can't find answers to in the ATCOR4 manual or in the forums. 

 1. In the output from ATCOR4 band names are given as refl [%*100],
    what does this symbol mean? I ask because when displayed theband
    names themselves are multiplied by 1000 not 100  eg Band 0.4331 is
    displayed in the header file as 433.11.

The symbol simple means 'reflectance in % (percent) times 100; ie a reflectance of 10% gets a value of 1000 (this is the default to make it fit into an integer data type). 

2. Some bands are displayed with an asterisk following their name,
    and some are not. What does the asterisk represent? eg 753.14*
    refl [%*100].

The asterisk in the band name indicates interpolated bands; interpolation for water vapor absorption regions may be configured in the atcor preferences panel.

3. After atmospheric correction, the pixel values are integer, with
    ranges from 0 to ~1500. But, in the header file, the reflectance
    scale factor = 10000. So, which values do I use to scale the data
    to sensible reflectance values (given the [%*100] symbol in my Q1
    also).

The reflectance scale factor is defined respective to the unitless reflectance (i.e. a reflectance of 0.1 is 10% and gets 1000).

[jomiles]

What is the best way to get around this error?

[reseadmin]

This DEM is in geographic coordinates (Geographic Long/Lat), wheraes ATCOR requires metric coordinates; you'd need to convert the DEM to UTM before it can be used in ATCOR. Such a conversion is to be done externally, e.g. in ENVI.

[jomiles]

This DEM is in geographic coordinates (Geographic Long/Lat), wheraes ATCOR requires metric coordinates; you'd need to convert the DEM to UTM before it can be used in ATCOR. Such a conversion is to be done externally, e.g. in ENVI.

Thank you for your help.

Hopefully my last question for you: what does this error message relate to? I am atmospherically correcting a rugged terrain.