|Fig. 1 GeoZones "aa"-"br'|
The aggregation logic is working to combine all of the tide gauge stations in a geoZone ("aa" - "br") into two groups.
The two groups are either the SLF or SLR type, all aggregated into one of two mean seal level sub-groups.
The logic prior to this had only labelled a tide gauge station as either SLF or SLR.
It shows both the SLF and SLR over the years and shows SLF in red, SLR in black (Fig. 2, and Fig. 3).
Even better, I have the future projection software working with the aggregation logic, although it is not yet perfected (maybe tomorrow).
|Fig. 4 An "SLR only" GeoZone|
See Fig. 4, which among other things, shows where the future projection graph attaches.
It will all (historical & future) still be on one graph.
As you can only give a couple of examples today, but hang on, because some very interesting revelations are on the way.
A final note about PSMSL.
The values are in RLR millimeters, as you can see on the graphs, so read up on RLR millimeters if you haven't yet (About RLR millimeters).
Figure shows the basic idea, which is, RLR millimeters are 7000mm below global mean sea level (it is explained in the link I just gave).
As I understand it.
So in Fig. 4 there is a global mean sea level line at the 7000mm mark.
Anything above the 7000mm line is above the global mean sea level average, and anything below it is below the global mean sea level average.
Anyway, tomorrow I hope to print some graphs with the future SLF and SLR projections on it, as a continuance added to the end of the historical record.
In conclusion, I see the SLC GeoZones as a high level monitoring tool, the sub-zones SLF and SLR as closer monitoring, and when necessary, the individual tide gauge stations as the closest monitoring.
UPDATE: The SLR only scenario in GeoZone "aa" as shown in Fig. 4 is anomalous, but I have not discerend all the reasons.
But one reason is that the zone cuts off part of East Greenland, and the zone east of zone "aa" is zone "af" which does have 5 SLF stations, 1 SLR station:
Zone: af (Lat: 60.000000 -> 90.000000) (Lon: -60.000000 -> -120.000000)
QIKIQTARJUAQ (Lat: 67.866669, Lon: -64.116669) (2009->2010) (6967->6961) (6964,SLF)
RESOLUTE (Lat: 74.683334, Lon: -94.883331) (1958->1976) (6982->6928) (6942,SLF)
LITTLE CORNWALLIS ISLAND (Lat: 75.383331, Lon: -96.949997) (1992->1993) (6993->7017) (7005,SLR)
ALERT (Lat: 82.489998, Lon: -62.320000) (1968->2007) (6988->6976) (6957,SLF)
CAMBRIDGE BAY (Lat: 69.116669, Lon: -105.066666) (1965->1973) (6993->6967) (6969,SLF)
ULUKHAKTOK ( FORMALLY HOLMAN ) (Lat: 71.233330, Lon: -118.266670) (2003->2009) (7047->6959) (6958,SLF)
So, I may have to change the zone lines to comport with the fingerprint boundaries more accurately, or something to that effect.
UPDATE 2: On closer analysis, the zone "af" stations don't resolve the problem because most of them are inactive now, and the records available for when they were active, are only for a few years:
(Alert)That is not enough data ("minimum of 30 years" - Mitrovica), so I may have to get some satellite data to resolve those two zones ("aa" & "af").
(Little Cornwallis Is.)