Sunday, February 25, 2018

Databases Galore - 20

Fig. 1
I downloaded some more data from links on the PSMSL site (Bottom Pressure data Links).

I have not fused it into the system yet.

However, I have implemented software to compare sea level change (SLC) with bottom pressure stations in the Pacific Ocean, Patagonia, and the US East Coast (Fig. 3a - Fig. 3c).

The graphic at Fig. 2 has a blue oval drawn around the WOD Zones and the bottom pressure stations (red squares) used to construct the graph at Fig. 3b.

There are nine zones with nine bottom pressure stations that make up the dataset I used.
Fig. 2

Fig. 3a
Fig. 3b
Fig. 3c
The graph at Fig. 3b shows how SLC in the "golden 23" stations compares with the bottom pressure records.

That blue oval is located in the place where the highest sea level rise (SLR) on Earth takes place.

That location is shown in the graphic at Fig. 1. where the darkest red indicates the ocean area of highest sea level rise.

The bottom pressure in that area shot up at the same time the tide gauge stations were recording an upward trend in SLR.

Compare that to the indications for Patagonia and the East Coast, two areas that are in areas that Fig. 1 indicates get less trend in a particular direction of change.

That is because those four stations (see blue square on Fig. 2) are out at sea where there are no tide gauge stations.

I chose those because the scientific papers about bottom pressure stations say that shallow water sites have "noise" issues.

When one looks at the tide gauge stations on the coast it is a different story.

There is serious SLR all along the East Coast at the coastline (e.g.The Extinction of Chesapeake Bay Islands2).

I am happy that the new data is going to be able to be used for confirming things regular readers already know (e.g. NASA Busts The Ghost) but at the same time are not allergic to further confirmation.

My focus now is to gather data that is more recent, which seems to be more difficult with bottom pressure records.

The previous post in this series is here.




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