1. www.argoss.nl New satellite based Web services for the marine and coastal community Gerard Hesselmans, Charles Calkoen and Han Wensink www.argoss.nl

2. waveclimate_compresentatie2002 Program 1Introduction and background 2wind and waves 3currents and sea level

3. www.argoss.nl © Van Oord ACZ waveclimate_compresentatie2002

4. www.argoss.nl waveclimate_compresentatie2002 Sources of wind and wave climate data – waveclimate.com.

5. www.argoss.nl www.waveclimate.com Database consisting of validated wind and wave observations based on different satellites missions since 1985. Web interface to generate, analyze and present online value added information waveclimate_compresentatie2002

6. www.argoss.nl www.waveclimate.com Main differences with other satellite observation providers –Database contains 2D wave spectra. –You only pay for the information downloaded. –Each year database is updated with new quality checked observations. –Infrastructure and helpdesk assuring access worldwide (maximum waiting time 2 seconds). –Web based Value Added Services waveclimate_compresentatie2002

7. www.argoss.nl waveclimate_com215 Wave mode imagette captures each 200 km (2 per minute). Global coverage, 1500 spectra per day over open water.

8. www.argoss.nl waveclimate_compresentatie2002

9. www.argoss.nl Area selection - waveclimate.com (screendump). waveclimate_compresentatie2002

10. www.argoss.nl Histogram, distribution of sign. wave height - waveclimate.com. waveclimate_compresentatie2002

11. www.argoss.nl Histogram, distribution of sign. wave height - waveclimate.com. waveclimate_compresentatie2002

12. www.argoss.nl Seasonality plot of wind speed - waveclimate.com. waveclimate_compresentatie2002

13. www.argoss.nl Scatter diagram. Percentage of occurrence of sign. wave height (m) in rows versus wave direction in columns - waveclimate.com. waveclimate_compresentatie2002

14. www.argoss.nl Monthly distribution of sign. wave height (m) - waveclimate.com. waveclimate_compresentatie2002

15. www.argoss.nl Fitted curve for sign. wave height - waveclimate.com. waveclimate_compresentatie2002

16. www.argoss.nl Comparison with NOAA buoys in US coastal waters. Significant wave height (1st table). Wind speed (2nd table). waveclimate_compresentatie2002

17. www.argoss.nl tidal_info_compresentatie2002

18. www.argoss.nl www.tidal-info.com Database consisting of validated sea level observations based on 9 years TOPEX/POSEIDON and 73 tidal stations. Observations are assimilated into 2DH flow model globally (8km by 8km grid) Web interface to generate, analyze and present online value added information waveclimate_compresentatie2002

19. www.argoss.nl Location selection - tidal-info.com tidal_info_compresentatie2002

20. www.argoss.nl Location selection - tidal-info.com tidal_info_compresentatie2002

21. www.argoss.nl Output selection - tidal-info.com tidal_info_compresentatie2002

22. www.argoss.nl Timeseries - tidal-info.com tidal_info_compresentatie2002

23. www.argoss.nl Timeseries - tidal-info.com tidal_info_compresentatie2002

24. www.argoss.nl Flow velocity – tidal-info.com tidal_info_compresentatie2002

25. www.argoss.nl Histogram – tidal-info.com tidal_info_compresentatie2002

26. www.argoss.nl Scatterdiagram - tidal-info.com tidal_info_compresentatie2002

27. www.argoss.nl www.tidal-info.com Accuracy: –sea level 5-8% –Currents 10-15% waveclimate_compresentatie2002

28. www.argoss.nl postal address p.o.box 61 8325 ZH Vollenhove the Netherlands telephone +31 527 242 299 telefax +31 527 242 016 e-mail info@argoss.nl website www.argoss.nl