Klaus Hasselmann
= Klaus Hasselmann
{c}
{tag=Physicist}
{wiki}
= K. Hasselmann
{c}
{synonym}
<Klaus Hasselmann> explained how rapid, irregular weather fluctuations can generate slow <climate variability>. His 1976 <Hasselmann stochastic climate model> separates fast atmospheric variables from more slowly responding components such as the <ocean> and <cryosphere>, retaining the fluctuating forcing that simple time averaging would discard. Slow components integrate that forcing; stabilizing <climate feedbacks> prevent the variance from growing without bound. This supplies a mechanism for internally generated variability even when the external conditions do not vary.<Stochastic climate models Part I. Theory by Klaus Hasselmann>[Abstract and section 7, separation of timescales, fluctuating forcing and stabilizing feedback]{ref}
A <physicist> who developed stochastic <climate models> and founded the Max Planck Institute for Meteorology in 1975.<Professional profile of Klaus Hasselmann (mpimet.mpg.de)>[Klaus Hasselmann and the beginning of climate research: founding directorship and stochastic model]{ref}
\Image[https://commons.wikimedia.org/wiki/Special:Redirect/file/Klaus_Hasselmann.jpg?width=260]
{title=Portrait of <Klaus Hasselmann>}
{description=Pegy22 (author field on Commons). https://creativecommons.org/publicdomain/zero/1.0/[CC0 1.0], via Wikimedia Commons.}
{source=https://commons.wikimedia.org/wiki/File:Klaus_Hasselmann.jpg}
{width=260}