Study finds warming speeding up rainfall cycle

April 28, 2012CLIMATEAn Australian study of ocean salinity over the past 50 years has revealed a “fingerprint” showing that climate change has accelerated the rainfall cycle, a researcher said Friday. The study published in the journal Science and conducted by Australian and U.S. scientists looked at ocean data from 1950 to 2000 and found that salinity levels had changed in oceans around the world over that time. Co-author Susan Wijffels said the figures were revealing because ocean salinity was indicative of changes in the water cycle of rainfall and evaporation. “What the results are saying is we have an ocean fingerprint, a very clear fingerprint, that the earth’s water cycle has already spun up,” she told AFP. “What we see in the observations of how the salinity field has changed already over the last 50 years, (is) our hydrological cycle has already intensified significantly.” Wijffels said the pattern was amplifying over time and it could be inferred that the same dynamics were also happening over land. “What it really means is that the atmosphere can actually shuttle more water from the areas that are drying out to the areas that have lots of rain faster,” she said. “And essentially it means that the wet areas are going to get wetter and the dry areas are going to get drier.” Wijffels said getting a clear picture of what had happened historically with rainfall was frustrating because there was little quality data, and most of this was collected on land, in particular in the northern hemisphere. “Yet most of the earth’s surface is the ocean and actually most of the evaporation that drives our water cycle is happening over the ocean,” Wijffels said, making the oceans a worthy object of climate change study. The researchers from Australian government science and research body CSIRO and the Lawrence Livermore National Laboratory in California used data taken from vessels in oceans around the world and climate models to produce their report. –Terra Daily
This entry was posted in Acquatic Ecosystem crash, Climate unraveling, Cloudburst storms with flashflooding, Earth Changes, Earth Watch, High-risk potential hazard zone, Volcano Watch. Bookmark the permalink.

6 Responses to Study finds warming speeding up rainfall cycle

  1. klem says:

    “revealed a “fingerprint”

    Oh no not the dreaded fingerprint thingy again?!

    I thought that meaningless word had been put to rest back in 2009, but there it is. I stand corrected.



  2. Desmond Ballance says:

    Luke 12:56 Ye hypocrites, ye can discern the face of the sky and of the earth; but how is it that ye do not discern this time?


  3. yamkin says:

    The Belief That CO2 Can Regulate Climate Is “Sheer Absurdity” Says Prominent German Meteorologist


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