1 / 30

Remote Sensing in the Japan East Sea

Remote Sensing in the Japan East Sea. Robert Arnone Richard Gould Chistine Chan Sherwin Ladner Naval Research Laboratory Stennis Space Center. Objective:. Establish the seasonal and regional character of the SST and Bio-Optical (Chlorophyll) distribution (i.e. time -series)

lukas
Download Presentation

Remote Sensing in the Japan East Sea

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Remote Sensing in the Japan East Sea Robert Arnone Richard Gould Chistine Chan Sherwin Ladner Naval Research Laboratory Stennis Space Center

  2. 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. Status of Remote Sensing AVHRR - - HRPT (1 km) daily imagery -NOAA – LAC 1998/1999 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. May. 21, 1999 SST Eddy Scales 25-35 km 40-50 km Upwelling 100-120 km Coastal Upwelling Roll um’ Filament

  5. AVHRR- SeaWIFS Monthly 1998 - 1999 Movie Gac SeaWIFS Monthly 1998- 1999 Movie AVHRR Monthly 1998- 1999 Movie AVHRR Weekly 1999 Movie SeaWIFS Weekly 1998 Movie SeaWIFS Weekly 1999 Movie AVHRR Weekly 1998 Movie AVHRR Daily 1998- 1999 Movie SeaWIFS Daily 1998- 1999 Movie

  6. Time-Series Analyses AVHRR – SST SeaWIFS – Chlorophyll Nov 1997 - Oct 1999 SeaWIFS Monthly Composite 4- 99 ! Residuals AVHRR Monthly Composite 4- 99 Russia China Korea Japan 130 140

  7. Basin Time Series Gac Imagery 1997 1998 1999 Spring Bloom Fall Bloom Spring Bloom SST

  8. Latitude Binned Seasonal progression of SST and Chlorophyll Sea Surface Temperature (AVHRR -GAC) Chlorophyll (SeaWIFS - GAC) Fall Bloom Fall Bloom Spring Bloom Spring Bloom 1997 1998 1999 1998 1997 1999

  9. Regional Time- Series Weekly Composites North Basin North Basin SubPolar Front SubPolar Front South Basin South Basin

  10. Time Series Analyses AVHRR WEEKLY (HRPT) SeaWIFS

  11. Differences in SST and Chlorophyll March 24, 1998 Julian: 083 Sea Surface Temperature Chlorophyll

  12. March 31, 1998 AVHRR - SST SeaWIFS -CHL

  13. May 21, 1999 SST and Chlorophyll

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

  15. East Sea Cruise, HNRO05 19 May - 3 June, 1999 ASD Station Locations 25 14 11,17 24 18,19 13 20 23 12 10,16 15 9 26 27 21,22 30 29 28 4 2 6 7 36 5 37 3 8 38 39 31 32 5 33 34 35 40 1 33 11

  16. 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

  17. Subpolar Front -- May 21, 1999 AVHRR and SeaWiFS Collected ~ 6 hrs apart CHL CHL > 2.0 g/l Chlorophyll CHL > 2.0 g/l SST SST Chlorophyll SST SST

  18. AVHRR SST May 21, 1999 AVHRR SST May 21, 1999 Cruise track AVHRR SST 12 14 16 ShipFlow Through 12 14 16

  19. SeaWIFS Absorption 440 (Arnone) 0.10 0.2 0.3 SeaWIFS (atotal 440) 0.10 0.2 .3 Flowthrough (atotal 443)

  20. SeaWIFS (bb550) Flowthrough b550

  21. April 25, 1999 Week 17

  22. 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

  23. Korean Coast -- May 21, 1999 CHL SST SST SST CHL > 2.0 g/l CHL > 2.0 g/l Chlorophyll SST SST SST

  24. June 10, 1999- Week 23

  25. Subpolar Front -- April, May, June, 1999 SST April 21, 1999 CHL > 2.0 g/l CHL > 2.0 g/l Chlorophyll SST May 21, 1999 Chlorophyll SST June 9, 1999 Chlorophyll SST

  26. 0.06 0.15 0.25 Japan East Sea COMPARISONS 10 iterations 0.06 0.15 0.25 No iteration Decreased Chlorophyll Values

More Related