1. NRL09/21/2004_Davis.1 GOES-R HES-CW Requirements Curtiss Davis COAS, Oregon State university

2. NRL09/21/2004_Davis.2 Visible Infrared Imaging Radiometer Suite (VIIRS) Being built by Raytheon SBRS –SeaWiFS and MODIS heritage First flight on NPOESS Preparatory Project (NPP) in 2008 then NPOESS satellites starting in 2010 Seven ocean color channels and 2 SST channels Approximately 1 km GSD ocean color –742 m GSD and Nadir, 1092 m at +/- 850 km, 1597m at End of Scan (+/- 1500 km) –Designed to meet global ocean imaging requirements at 1 km GSD –Maximum revisit frequency of twice a day at 1030 and 1530 Approximately 1 km GSD ocean color –742 m GSD and Nadir, 1092 m at +/- 850 km, 1597m at End of Scan (+/- 1500 km) –Designed to meet global ocean imaging requirements at 1 km GSD –Maximum revisit frequency of twice a day at 1030 and 1530

3. NRL09/21/2004_Davis.3 Why HES-CW given VIIRS? Tides, diel winds (such as the land/sea breeze), river runoff, upwelling and storm winds drive coastal currents that can reach several knots. Furthermore, currents driven by diurnal and semi-diurnal tides reverse approximately every 6 hours. VIIRS daily sampling at the same time cannot resolve tides, diurnal winds, etc. HES-CW will provide the capability to view coastal waters from a geostationary platform that will provide the management and science community with a unique capability to observe the dynamic coastal ocean environment. HES-CW will provide higher spatial resolution (300 m vs. 1000 m) HES-CW will provide additional channels to measure solar stimulated fluorescence, suspended sediments, CDOM and improved atmospheric correction. Example tidal cycle from Charleston, OR. Black arrows VIIRS sampling, red arrows HES-CW sampling. Example tidal cycle from Charleston, OR. Black arrows VIIRS sampling, red arrows HES-CW sampling. These improvements are critical for the analyses of coastal waters.

4. NRL09/21/2004_Davis.4 HES-PORD Channel Specifications

5. NRL09/21/2004_Davis.5 COAST proposed new HES-CW Channel Specifications

6. NRL09/21/2004_Davis.6 Wavelength (  m) Application 0.412 (THRESHOLD)Colored dissolved organic Matter (CDOM) 0.443 (THRESHOLD)Chlorophyll a, CDOM Particulate Organic Carbon (POC) 0.477 (THRESHOLD) XXXChlorophyll a and Chlorophyll b, O 2 :O 2 dimmer 0.490 (THRESHOLD)Chlorophyll a and accessory pigments 0.510 (THRESHOLD)Accessory Pigments 0.530 (THRESHOLD)Accessory pigments, Suspended sediment 0.550 (THRESHOLD)Chlorophyll a, accessory pigments, suspended sediments, (POC) 0.580 new thresholdAccessory pigments, suspended sediments, water clarity 0.610 new thresholdSuspended sediments, water clarity 0.645 (THRESHOLD)Suspended sediments, coccolith concentration 0.667 (THRESHOLD)Chlorophyll a, Fluorescence 0.678 (THRESHOLD)Chlorophyll a fluorescence 0.720 new threshold if no 1.00Atmospheric correction, chlorophyll fluorescence 0.750 (THRESHOLD)Atmospheric correction 0.763 (THRESHOLD) XXXO 2 A band 0.865 (THRESHOLD)Atmospheric correction, cloud clearing 0.905 (THRESHOLD) XXXColumn water 1.000 new threshold (40 nm)Atmospheric Correction 0.407 to.987 in 10 nm channels (GOAL)Hyperspectral imaging for discrimination of in-water and bottom features 0.345 new goal (20 nm)Atmospheric correction in coastal waters 0.380 new goal (20 nm)CDOM, Atmospheric correction in coastal waters 1.240 GOAL (40 nm)Atmospheric Correction 1.38 (GOAL)Daytime cirrus cloud 1.61 (GOAL)Daytime cloud water 2.26 (GOAL)Daytime cloud properties 11.2 (GOAL)Total water for Sea Surface Temperature (SST) 1 12.3 (GOAL)Sea Surface Temperature (SST) 1

7. NRL09/21/2004_Davis.7 Frequency of Sampling and Prioritizing Goal Requirements COAST top priority goals are: –Higher frequency of sampling –Goal channels for atmospheric correction –Hyperspectral instead of multispectral Threshold requirement is to sample all Hawaii and Continental U. S. coastal waters once every three hours during daylight –Plus additional hourly sampling of selected areas Goal requirement is hourly sampling of all U.S. coastal waters is strongly recommended, for cloud clearing and to better resolve coastal ocean dynamics. Goal requirements compete with each other, e.g. higher spatial resolution makes it harder to increase sampling frequency or SNR. Threshold requirement is to sample all Hawaii and Continental U. S. coastal waters once every three hours during daylight –Plus additional hourly sampling of selected areas Goal requirement is hourly sampling of all U.S. coastal waters is strongly recommended, for cloud clearing and to better resolve coastal ocean dynamics. Goal requirements compete with each other, e.g. higher spatial resolution makes it harder to increase sampling frequency or SNR. HES-CW built to the threshold requirements will be a dramatic improvement over present capabilities for coastal imaging.