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NRL 7343 Nov’97 Remote Sensing in the Japan East Sea Robert ArnoneRichard Gould Chistine Chan Sherwin Ladner Naval Research Laboratory Stennis Space Center.

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Presentation on theme: "NRL 7343 Nov’97 Remote Sensing in the Japan East Sea Robert ArnoneRichard Gould Chistine Chan Sherwin Ladner Naval Research Laboratory Stennis Space Center."— Presentation transcript:

1 NRL 7343 Nov’97 Remote Sensing in the Japan East Sea Robert ArnoneRichard Gould Chistine Chan Sherwin Ladner Naval Research Laboratory Stennis Space Center

2 NRL 7343 Nov’97 Objective: Establish the seasonal and regional character of the SST and Bio-Optical (Chlorophyll) distribution (i.e. time -series) AVHRR / SeaWIFS GAC /and LAC (resolution) Coupling of the temperature and bio-optical structure (physical) on the Subpolar front/ Korean Coastal Current Determine link of the surface features with subsurface Real –time satellite imagery (AVHRR and SeaWIFS ) for directing SeaSoar SeaWIFS validation. CRUISE ONE RESULTS – SEASOAR – May /June 1999

3 NRL 7343 Nov’97 Status of Remote Sensing AVHRR - - HRPT (1 km) daily imagery -NOAA – LAC1998/1999 limited - Shipboard system - KORDI – HRPT – (ftp) - July - 1999 - Japan Ischio Asamasi total 1998 – 227 total 1999 – 384 total of 611 - GAC (Monthly) -Phy O DACC (JPL) SeaWIFS - HRPT (1 km) - Goddard (SeaWIFS project) - Ship board system - GAC (monthly) – SeaWIFS project AVHRR - - HRPT (1 km) daily imagery -NOAA – LAC1998/1999 limited - Shipboard system - KORDI – HRPT – (ftp) - July - 1999 - Japan Ischio Asamasi total 1998 – 227 total 1999 – 384 total of 611 - GAC (Monthly) -Phy O DACC (JPL) SeaWIFS - HRPT (1 km) - Goddard (SeaWIFS project) - Ship board system - GAC (monthly) – SeaWIFS project

4 NRL 7343 Nov’97

5 May. 21, 1999 100-120 km 25-35 km 40-50 km Coastal Upwelling Upwelling Upwelling SST Eddy Scales Filament Roll um’ Roll um’

6 NRL 7343 Nov’97

7 SeaWIFS Daily 1998- 1999 Movie AVHRR Movie SeaWIFS Monthly 1998- 1999 1998- 1999 Movie AVHRR Monthly Monthly 1998- 1999 1998- 1999 Movie SeaWIFS Weekly 1999 Movie SeaWIFS Weekly 1998 Movie AVHRR Weekly 1998 Movie AVHRR Weekly 1999 Movie AVHRR- SeaWIFS AVHRR- SeaWIFS Monthly 1998 - 1999 1998 - 1999 Movie

8 NRL 7343 Nov’97 AVHRR Monthly Composite Monthly Composite 4- 99 Korea Japan Russia 130140 China Time-Series Analyses AVHRR – SST SeaWIFS – Chlorophyll Nov 1997 - Oct 1999 SeaWIFS Monthly Composite Monthly Composite 4- 99 ! Residuals

9 NRL 7343 Nov’97 199819991997 SST Spring Bloom Bloom Fall Spring Basin Time Series Gac Imagery

10 NRL 7343 Nov’97 1998199719991998 1997 1999 Latitude Binned Seasonal progression of SST and Chlorophyll of SST and Chlorophyll Sea Surface Temperature (AVHRR -GAC) Chlorophyll (SeaWIFS - GAC) Spring Bloom

11 NRL 7343 Nov’97 Regional Time- Series Weekly Composites North Basin South Basin SubPolar Front

12 NRL 7343 Nov’97 Time Series Analyses WEEKLY (HRPT) SeaWIFS AVHRR

13 NRL 7343 Nov’97 Differences in SST and Chlorophyll March 24, 1998 Julian: 083 Sea Surface Temperature Chlorophyll

14 NRL 7343 Nov’97 SeaWIFS -CHL AVHRR - SST March 31, 1998

15 NRL 7343 Nov’97 May 21, 1999 SST and Chlorophyll

16 NRL 7343 Nov’97 Stations Stations NRL Reflectance CTD Atmospheric Sounding SubPolar Front Cruise track SST 21 May, 1999 Bio-Optics Bio-Optics Cruise results: May - June 1999 Stations 40 ASD – remote sensing reflectance ac9 – flowthrough (10 sec) Sun Photometer (80) - Shipboard receiving – 200 AVHRR - 25 SeaWIFS

17 NRL 7343 Nov’97 East Sea Cruise, HNRO05 19 May - 3 June, 1999 ASD Station Locations 1 2 3 4 5 67 8 21,22 9 10,16 20 18,19 11,17 14 13 12 15 25 24 23 26 27 282930 31 32 333435 36 37 38 39 40 5 11 33

18 NRL 7343 Nov’97

19

20 East Sea -- Thermal/Bio-Optical Relationships Define region of interest Extract ROI pixels from SST (AVHRR) and chlorophyll (SeaWiFS) imagery - daily scenes and monthly composites Examine thermal/bio-optical relationships (scatter plots, image overlays) Examine temporal and spatial changes (time-series analysis, histograms) North Basin Subpolar Front South Basin Korean Coast

21 NRL 7343 Nov’97 Subpolar Front -- May 21, 1999 CHL SST CHL > 2.0  g/l SST AVHRR and SeaWiFS Collected ~ 6 hrs apart Chlorophyll SST CHL > 2.0  g/l

22 NRL 7343 Nov’97 AVHRR SST May 21, 1999 AVHRR SST May 21, 1999 Cruise track 12 14 16 AVHRR SST ShipFlow Through

23 NRL 7343 Nov’97SeaWIFSAbsorption 440 (Arnone) 0.10 0.2.3 SeaWIFS (atotal 440) Flowthrough (atotal 443) 0.10 0.2 0.3

24 NRL 7343 Nov’97 SeaWIFS (bb550) Flowthrough b550

25 NRL 7343 Nov’97 April 25, 1999 Week 17 Week 17

26 NRL 7343 Nov’97 Summary - Time series of AVHRR- SST and SeaWIFS Bio-optics -Movie Loops - Seasonal and regional trends - Spring / Fall Blooms - Eddy Fields – scales - Complex SST / Chlorophyll linking - May Seasoar Cruise – - Optical properties / absorption/ scattering and RRS - Characterization of SeaWIFS IOP

27 NRL 7343 Nov’97 Korean Coast -- May 21, 1999 CHLSST Chlorophyll SST CHL > 2.0  g/l

28 NRL 7343 Nov’97 June 10, 1999- Week 23

29 NRL 7343 Nov’97 Subpolar Front -- April, May, June, 1999 April 21, 1999 CHL > 2.0  g/l SST May 21, 1999 June 9, 1999 CHL > 2.0  g/l Chlorophyll SST Chlorophyll SST Chlorophyll SST

30 NRL 7343 Nov’97 COMPARISONS No iteration 10 iterations Japan East Sea Decreased Chlorophyll Values 0.06 0.15 0.25

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