VIIRS CAL _ Val Ocean Color January 31, 2013 Stennis Update USM, NRL, SDSU

Highlights 1 - Presentations in last 3 months 1) Fargion, G.S., et al,. “VIIRS Ocean Color Data For Coastal Management” abstract AGU-San Francisco. Dec 8 – ) Arnone, R.A. et al., Applications of Emerging satellites for ocean bio-geo chemical and physical processes” invited AGU-San Francisco, Dec 8 – ) Bowers, J, et al “Exploring Regional Adjustment Of Coastal VIIRS By Repurposing On-Orbit Vicarious Calibration Methodology”, AGU-San Francisco, Dec 8 – ) S. Ladner, S., et al “Evaluation of Recent VIIRS Sensor Performance in the Coastal Ocean”, AGU-San Francisco, Dec ) Planned SPIE conferences and IGARRS 2 - VIIRS Clouds Mask - Improvement to the Threshold 3 - Evaluate of MX6.6 - Negative radiance, Inland waters, 4- AERONET Improvements for Match up WAVECIS – Time of day calibrate – expanded Angles Eureka - MVC0 – updated 5 - VIIRS product validation (vicarious calibration) in coastal waters (using SAVANT) SAVANT – matchup tool updated 6. Cruise Validation - 5 cruises

VIIRS Cloud MASK (VCM) Albedo VCM Confidently Cloudy VCM 2,3 2- Probably Cloudy or 3- Confidently Cloudy VCM 1,2, 3 0 – Confidently Clear 1- Probably clear 2- Probably Cloudy 3- Confidently Cloudy -Evaluation of VCM on Ocean Color products - comparison with “Standard Ocean color, Cloud Mask.” ( NASA, NAVY, NOAA) - Program review in Jan For Color products VCM performed “Very well “. -Noted improvement to present (Threshold method). Separates the Glint mask - Caspian Sea Glint Present Cloud mask VCM

By monoring the vLt/Lt over time VIIRS seems to be performing well. Some anomalies are expected as these coastal sites. VIIRS Coast Validation using AERONETS with SAVANT (tool) - Trend of the “GAIN” - Vicarious adjustment of the VIIRS using nL2 gen - Different regions show “slight” different trends.. - Waiting the MX 6.6 EDR to obtain more retrievals to run statistics on IDPS EDR - Validation within 1% based on the Spectral Gains !! Venice - AAOT EUREKA WAVECIS Gain Julian Day nLw 668 – Low 668 – high ~ +2.5% +~.001% ~ +.01% Mean Gains %

VOCC IDPS MX6.6 Update IDPS - Over Masking Old IDPS OPERATIONAL SYSTEM Negative Radiance masking MX IDPS OPERATIONAL SYSTEM JANUARY 2013 CURRENT L2gen APS - Updates to MX6.6 Inland lakes - High Satellite angle - Do not mask as Negative but retrieve value and use Quality Flags

MX 6.6 Check out ! US East Coast GS APS (n2gen)VOCCO Mx6.6 -MX6.6 improvement to retrievals ! - Processing ocean color and not negative - Issues with differences in values (Coastal areas are high in VIIRS ) - WILL ENABLE MORE VIIRS MATCHUPS! Inland lakes ! Coastal retrievals!

190 Stations NRL n2gen ~55% more retrievals than IDPS (masking) M VIIRS IDPS VIIRS – Gov software lamdar2PerDiffr2PerDiff Key West Stations Cruise Ocean VIIRS Validation 1- Key West 2- Gulf of Mexico (fisheries) 3) Carbon Flux Cruise (Gulf and East Coast) * 4 ) Glider 5) Hawaii Sample # bb532nm Panama City, FL Backscattering 532

- Update the matchup with the Mx6.6 - with VOCCO from Class within SAVANT AERONET - Presentations and papers underway.. SPIE – Baltimore - Coupling VIIRS and MODIS for Coastal Processes IGARS – - Validation cruises - Gulf of Mexico - MOBY re analyses analyses - Address the DR - Coastal products and aerosols Summary / Plans Summary / Plans

VIIRS - Surface Chlorophyll Tracking the MS River Plume Warm Core Eddy Core Eddy Origin of Gulf Stream Clouds MS River water mg/m^ Chlorophyll Mississippi River Delta N28 o N26 o N24 o N22 o Sept 20, 2012 Convergence