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Østersøens rumlighed

This document discusses the functionality and applications of the DIVA (Data Inversion and Variational Analysis) web service, which provides robust tools for approximating oceanographic data including surface temperatures from 1975 to 2005 in the Baltic region. It highlights the ability to generate netCDF files, perform data analysis through various modes (batch, web service), options for trend filtering, and access to ICES databases. The use of MATLAB for plotting and analysis is also detailed, showcasing how DIVA facilitates comprehensive ocean data insights.

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Østersøens rumlighed

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  1. Østersøensrumlighed

  2. 2D mapping

  3. 2D mapping • Data approximation by Data Inverse Variational Analysis (DIVA) • Diva webservice • Ocean Data View • DIVA (batch mode)

  4. diva webservice • google : ”gher diva” • http://modb.oce.ulg.ac.be/projects/1/diva • http://gher-diva.phys.ulg.ac.be/web-vis/diva.html

  5. DIVA MESH

  6. stationer ! classic DIVA default

  7. Comparisons: on July surface temperature1975-2005 WOA 2005 (period?) DIVA on ICES/SDN DIVA 1º grid Baltic Atlas (IOW) DIVA 1º grid ICES/SDN

  8. ODV trajectory Figure 1: Section Spline

  9. my protocol • webservice acces ICES database, could be what so ever (CDI,ODAM…,Excel!) • SAS filter and file generation for DIVA as defined by layer and time period. • Data approximation by Inverse Variational Analysis, produces net cdf files • DIVA (batch mode, or Diva webservice or ODV) • options: • current • detrend function according to defined classes • reference field • mesh, correlation length, S/N R, … • Matlab for plotting and further processing

  10. densitometry

  11. yearly density transect for latitude 54

  12. yearly density transect for latitude 56

  13. yearly density transect for latitude 58

  14. yearly density transect for latitude 60

  15. yearly density transect for latitude 62

  16. yearly density transect for latitude 64

  17. from bathymetri to bathydensito…?

  18. from bathymetri to bathydensito…?

  19. from bathymetri to bathydensito…? coastline, (0 m) isocline, (>1006 kg.m-3)

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