Users have reported anomalies when using the test GAC data, especially for
the visible channels. We are delaying the update scheduled for July 31
until further notice to resolve these anomalies. This served as a reminder
to us that we did not include information on the visible calibration update
that is also included in the current test data. Below are the new values as
provided by the instrument scientist. You will be notified of any changes.
We will continue to provide test data on both the CEMSCS and SGI. If you
have any questions or concerns, please contact me.
Thank you for your patience.
Emily
NOAA-16 AVHRR A301 visible channel calibration
Slope Intercept
Breakpoint
Ch.1 0- 25% albedo 0.0523 -2.016 497.5
Ch.1 25-100% albedo 0.1528 -51.91
Ch.2 0 -25% albedo 0.0513 -1.943 500.3
Ch.2 25-100% albedo 0.1510 -51.77
Ch.3A 0 -12.5% albedo 0.0287 -2.043 498.7
Ch.3A 12.5-100% albedo 0.1806 -78.03
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*
* Emily D. Harrod
* NOAA/NESDIS/OSDPD/IPD
* Product Systems Branch
* Pre-Product Processing Group
* E/SP13, Federal Building #4, room 0318
* 5200 Auth Road
* Suitland, Maryland 20746-4304
* USA
* voice 301-457-5247
* fax 301-457-5199
* email Emily.Harrod@noaa.gov
*
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