I'm currently comparing Sea Level trends from satellite vs tide gauges and see a big negative trend for the whole Baltic coast. Does anyone know why this is happening please?
You can see the effect here... (please add http://www) psmsl.org/products/trends/
JimZ
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The most obvious answer for me would be isostatic rebound from the recent past glaciation, recent in geological terms anyway. Sea level relative to land is dependent on the many things, the rise in sea level from water being added or thermal expansion, gravity, changes in land elevation, etc. Melting continental glaciers caused the land to rebound upwards in places of past glaciation and it is still doing so now. I am not aware of mountain building episodes currently underway in the Baltic but that wouldn't shock me either.
I wanted to check here in So Cal. I noticed they had a big red arrow by San Diego which showed rising sea level but you could barely see Newport Beach which showed almost no rise.
gerhold
properly, it incredibly is not like denialists are employing any style of reason or logic to form their ideals. For the income of everyone examining Ian's answer and mistaking it for a existence like assertion, enable me to show out that he's ignoring variables at the same time with thermal expansion and ice soften quotes. Does all human beings incredibly assume ice to soften at a non-provide up fee for the subsequent century? Thermal expansion would even tend to variety interior the fee at which it drives ameliorations in sea point. Ironic that somebody like Ian, who complains abut predictive climate fashions by using version in parameters, will only thoroughly forget approximately approximately all the parameters on the subject of sea point upward thrust and assume a linear exchange.
Kano
Yes the answer has been known for years, it is taking away water that normally feeds the Baltic for farm irrigation
Anonymous
It seems that most of the decreasing level is off Finland and as previously mentioned. land lift is part of the cause, Ice gravitation another and the Finland straits have an effect. Other parts of the Baltic sea are rising near Poland and Germany Things aren't always as first seen
Anonymous
Probably one of two possible reasons
1. Uplift. It is in a mountanous region.
2. Reduction of flow from streams feeding the Baltic Sea, which is shallow.
http://www.coastalwiki.org/coastalwiki/Climate_Change_in_Baltic_Sea_Area