Did you know the rate of sea level rise has decreased

And that it is not related to the hiatus in temperature increase?  Climate scientists have been puzzling over the decrease in the rate of sea level rise over the last decade.  A report in Nature Climate Change says that the rate of SLR decreased to 2.4 mm/year over the decade 2003-2012 compared to 3.1 mm/year over the period 1993-2002 according to the Reuters summary. The slowdown is not due to the hiatus but due to rainfall pattern changes which put the rain onto land masses such as the Amazon, Australia and the Congo.  The climate change signal is still there.  The researchers also indicated the missing heat was in the deep waters of the oceans.  Expect a rebound.

This slow down in sea level rise is due to something not often mentioned, natural variation.  Another report of the article with the abstract can be found here.  

With all the reports of drought, I seem to recall that the heavy rains in Australia were in 2010.

So, the usually ignored or non-existent decrease in the rate of sea level rise is caused by natural variation in rainfall patterns and not by the non-existent hiatus in temperature rise which is caused by volcanic activity.  I think I understand.

 

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8 responses to “Did you know the rate of sea level rise has decreased

  1. At last some common sense

  2. Wait a moment. They are saying that the slowdown in SLR is being caused by heat sequestration in the deep ocean? I thought heat being stored in the oceans caused thermal expansion, which increases SLR?

  3. What size bathtub?

    Until they can measure the ocean basin, and monitor its changes, any discussion of sea level change is gross speculation.

    • Absolutely. Without knowing the true volume of the oceans everything else is fuzzy math.

      • It’s also one of those unmeasurable triple 0 nothing temperature increases. So who knows.

        Water going into forests (with some heat?) before it drains to the sea, deep ocean hiding heat. How long before the next reason comes out?

  4. Well, these numbers are measured by satellite altimetry over the open ocean, and they are of dubious reliability.

    The more reliable measurements are from tide gauge at the world’s coasts. Most of them are seeing much lower rates of sea level rise; in fact, about 1/4 of the best gauges are actually measuring declining sea level (due to PGR), The average trend is basically linear, with some studies finding a very slight decrease. Sea level rise measured by coastal tide gauges has shown no increase (acceleration) in over 80 years.

    If you want to understand why the satellite altimetry data for sea-level is unreliable, I recommend that you watch this lecture by astrophysicist Willie Soon. Dr. Soon explains the problems with satellite measurement of sea level better than anyone I’ve seen, starting here:

    http://www.youtube.com/watch?v=1gmW9GEUYvA#t=17m37s

    That segment of his lecture is 24 minutes long, starting at the 17:37 point. The link should take you directly to 17:37. But, actually, I recommend watching the whole 58 minute lecture at least once. I promise, you’ll learn a lot.

    For more references see: http://sealevel.info/papers.html#acceleration

  5. To sum up my study of what the Earth’s climate is doing is “what goes around comes around”, and that didn’t cost anyone a dime.

  6. The author of the article claims the ARGO float data supports the theory of deep ocean heating but a series of very fine analyses by Willis Eschenbach at WattsUpWithThat.com shows definitively that is not true. Just more table pounding.

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