The ‘Hypothesis’ That Longwave (Greenhouse Gas) Forcing Drives Greenland Ice Melt Is Wrong
By Kenneth Richard on 4. November 2021
Share this...
Scientists publishing in GRL once again affirm that in recent decades the dominant mechanism driving surface melt for the Greenland ice sheet has been downwelling shortwave radiation modulated by clearer skies (fewer clouds) and natural wind pattern changes.
Greenland’s ice melt has not been driven by “longwave heating” from greenhouse gases in the last decades – even though this has been the “prevailing hypothesis” in climate models (Wang et al., 2021).
“The day-to-day variability of normal-rate melt events is dominated by sensible heat exchange (31%) and shortwave radiation (28%). They are likely caused by katabatic winds, a gravity-driven downslope wind that can be forceful and often associated with clear skies.
https://notrickszone.com/#sthash.uBc77k0X.dyCnhsLQ.dpbs
