NASA - SatCORPS - SBAF Database

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Spectral Band Adjustment Factor (SBAF) calculator based on SCIAMACHY visible hyperspectral data

Spectral Band Adjustment Factor (SBAF) calculator based on SCIAMACHY visible hyperspectral data

Attribution:

The NASA-LaRC CERES geostationary calibration team has made significant investments of time and effort to develop and host the SCIAMACHY-based SBAF Tool. Please acknowledge with the statement below when using results from this tool in publications and presentations.

"The SCIAMACHY-based Spectral Band Adjustment Factors are computed from algorithms and online tools developed at NASA-LaRC with SCIAMACHY V7.01 data obtained from the European Space Agency Envisat program (Scarino et al. 2016, Bovensmann et al. 1999)."

References:

B. R. Scarino, D. R. Doelling, P. Minnis, A. Gopalan, T. Chee, R. Bhatt, C. Lukashin, and C. O. Haney, "A web-based tool for calculating spectral band difference adjustment factors derived from SCIAMACHY hyperspectral data," IEEE Trans. Geosci. Remote Sens., vol. 54, no. 5, pp. 2529-2542, 2016.
H. Bovensmann, J. P. Burrows, M. Buchwitz, J. Frerick, S. Noël, V. V. Rozanov, K. V. Chance, and A. P. H. Goede, "SCIAMACHY: Mission objectives and measurement modes," J. Atmos. Sci., vol. 56, no. 2, pp. 127-150, Jan. 1999.

Notes:

For this tool, SCIAMACHY data are limited to the continuous spectral range of Channels 1-6, or 0.24 - 1.75 µm.
Imager-equivalent "pseudo" radiance values are in units of Wm-2 µm-1 sr-1. Pseudo scaled radiance, or reflectance, is a product of the SRF-convolved radiance divided by the SRF-convolved SCIAMACHY solar constant and a factor of π.
The σ-cutoff feature under advanced options uses a default of 5×standard error of the regression to exclude outliers. Set this to 0 to remove this outlier filter.
The Fit Min X and Fit Max X feature under advanced options allows Users to limit the regression to x-axis values inside the selected bounds.

Comments or feedback? Contact Ben Scarino

Earth Spectra
(SCIAMACHY)
Reference (X-axis) SRF
Units		 Regression/Subsetting/Plotting/Spatial/Date
Controls

Central Wavelength: 


Target (Y-axis) SRF

Central Wavelength: 



Spectral Filter 1
Min μm 1 
Max μm 1 

Min Rad 1: 
Max Rad 1: 

Min Ref 1 
Max Ref 1 



Spectral Filter 2
Min μm 2 
Max μm 2 

Min Rad 2 
Max Rad 2 

Min Ref 2 
Max Ref 2 
Click here for advanced options


Version 1.1 (05/24/2017): σ-cutoff and x-range limiting capabilities added.

Version 1.2 (04/19/2018): Dynamic Scaling in effect based on Plot Min X and Plot Max X. Fit Min X and Fit Max X control dynamic range of fit independent of Plot Min/Max X.

Version 1.3 (05/02/2018): Enhanced versions of Dynamic Scaling based on Plot Min X and Plot Max X, Fit Min X and Fit Max X, as well as σ-cutoff, employed.

Version 1.4 (07/06/2018): Double Spectral-Filtering capability implemented.

Version 1.5 (07/09/2018): Made various UI improvements.

Version 1.6 (06/04/2020): Controls for Sensor Channel Out-of-Band Response for X- and Y-Axis implemented under advanced options.

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