Correct bbw values

Please enter here to ask a question about any NASA Science related topics!
Post Reply
tihicha
Posts: 5
Joined: Wed Jun 05, 2013 4:47 pm America/New_York

Correct bbw values

by tihicha » Wed Nov 25, 2020 5:25 pm America/New_York

Hello Bryan,
In the MODIS/VIIRS ST meeting a few days ago you mentioned that a bug in bbw values led to them being a few nm off. Are the values available here now OK/corrected:
https://oceancolor.gsfc.nasa.gov/reprocessing/r2009/sources/water_coef.txt

In particular, I'm using values as given in the example below. Are these the corrected ones or the old ones that need correcting?

%/fields=wavelength,aw,bw
%/units=nm,m^-1,m^-1
%/end_header
440.00 0.00635000 0.00501629
441.00 0.00659592 0.00496773
442.00 0.00684325 0.00491975
443.00 0.00706914 0.00487235

which as of now are the same as in the file linked above.

Thanks a lot for your time!
Tiho

Tags:

OB.DAAC - SeanBailey
User Services
User Services
Posts: 1123
Joined: Wed Sep 18, 2019 6:15 pm America/New_York

Correct bbw values

by OB.DAAC - SeanBailey » Mon Nov 30, 2020 10:30 am America/New_York

Tiho,

The values in the file are fine, the issue was a bug in the code that reads the ascii file.  The file had a few lines that were 'comments' but not recognized as comments by the code, so a shift occurred in reading the values into the defined array.

Sean

Post Reply