NCC EDR Status May 03, 2012 Stephanie Weiss, Steve Mills, Calvin Liang

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Presentation transcript:

NCC EDR Status May 03, 2012 Stephanie Weiss, Steve Mills, Calvin Liang NGAS A&DP

Image provided by Tom Kopp NCC Sample of 4 Granules ND_3475981_NCC_NorthAmerica_d20120504_t0826to0830 Hyperbolic shaped anomaly Image provided by Tom Kopp

NCC Sample ADL reprocessed with min irrad = 0 Hyperbolic shaped anomaly eliminated S. Weiss NGAS

Conclusion Min irradiance change to 0 eliminates hyperbolic shaped anomaly in original NCC EDR The triangular area is still missing, and was not fixed by this change change appears to be due to some flaw in logic at the granule level where there is a mix of Solar Zenith Angle (SlZA) both > 105 deg and < 105 deg it does not compute for those pixels > 105 deg SlZA , even there is sufficient lunar radiance to produce an NCC image. However, if the entire granule is > 105 deg SlZA, and there is sufficient lunar illumination, it works fine. Is there a shortcut here applying granule level logic to bypass some pixel level tests?