Monday, December 19, 2022

Seaports With Sea Level Change - 28

Seaport Cities
The World Ocean Database (WOD) is a source of Dredd Blog data with which the ongoing status of world seaports is monitored.

I mean the status with regard to what is happening to the seawater of world oceans (see Fig. 1 for a link to the WOD).

The appendices that are used in the process have references to "WOD Zones" which are represented by the small squares with numbers in the middle of them (Fig. 1).

Obviously only the ones over ocean bodies are relevant, i.e., the ones over land are not relevant.

Fig. 2 PSMSL
Another entity, The Permanent Service for Mean Sea Level (PSMSL) is a source of data for monitoring what is happening to impact seaports around the world (Seaports With Sea Level Change, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27).

The WOD data is used as to temperature, chemical content, and the like (at 33 depth levels), while the PSMSL data is used with regard to the sea surface height at various times, i.e., global sea level change.

The PSMSL updated their data on December 12, so in order to keep current, today's post is the Dredd Blog update.

The following menu has links to HTML tables and graphs of ports and tide gauge station values in countries listed in alphabetical order in the appendices of the menu items.

The "single" coastline column links to countries with only one coastline code, while the "multi" coastline column links to countries with more than just one coastline code (see PSMSL Table @ "Coastline" column for a complete list of coastline codes for each country's tide gauge stations).


(HTML) Single
Coastline Countries
(HTML) Multi
Coastline Countries
Coastline Graphs
Appendix: A-CAppendix: A-CAppendix: A-C
Appendix: D-GAppendix: D-GAppendix: D-G
Appendix: H-LAppendix: H-LAppendix: H-L
Appendix: M-OAppendix: M-OAppendix: M-O
Appendix: P-TAppendix: P-TAppendix: P-T
Appendix: U-ZAppendix: U-ZAppendix: U-Z

The HTML appendices have links to seaports and tide gauge stations which have Google-like maps for navigating around to get a grip on the geography involved.

WOD Zone numbers are also listed in the HTML appendices, and those WOD Zone numbers can be located on the Fig. 1 graphic once the geographical area is determined.

If you would like to know (if you don't already know) why sea level varies around the globe, watch the two videos below.

The next post in this series is here, the previous post in this series is here.




1 comment:

  1. The second (lower) video picture shows how vulnerable seaport cities are (the maximum sea level rise is ~263 feet ... i.e. 26 story "skyscraper"). At some point they suffer a fatal experience if sea level rise reaches as little 3+ meters (Link).

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