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#increasedatmosphericmoisture — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #increasedatmosphericmoisture, aggregated by home.social.

  1. @RSMacKinnon

    "#ClimateChange projections for the MENA region generally point towards a warmer and drier climate with increased extreme events by the end of the twenty-first century although by varying magnitudes. reported that, according to the Coupled Model Intercomparison Project—sixth phase (CMIP6 ) model projections, by the end of the twenty-first century there will be widespread warming over Africa more pronounced over the Sahara, with reduced precipitation amounts over northern and southern parts of the continent and increased in central parts, suggesting a broadening of the Hadley Cells. The median warming in the CMIP6 Multi-Model Ensemble Mean (MMEM) is found to be higher than that in the Coupled Model Intercomparison Project—fifth phase (CMIP6 ) MMEM over most of Africa, reaching up to 2.5 K over some regions, with a mixed pattern in terms of precipitation. Chen et al. showed the extremes in CMIP6 are generally an improvement with respect to those given by the models that integrated CMIP5, in particular for the annual maximum of the daily maximum and annual minimum of the daily minimum air temperatures.

    "Coupled with increased sea surface temperatures and surface evaporation leading to higher atmospheric
    moisture levels, future #WetBulb temperatures over Southwest Asia are projected to exceed a threshold for human #habitability. To date, most of the work conducted on the analysis of CMIP6 model data has focused on selected variables, in particular mean and extreme temperature and precipitation, with less attention paid to circulation patterns and seasonal changes, which impact regional and local conditions. For example, a change in the position and/or strength of the thermal (heat) lows and #subtropical highs over the #MiddleEast and #NorthAfrica will impact the atmospheric circulation and wind patterns locally. This can in turn impact the transport of moisture and the dust/aerosol emissions and transport and hence the atmospheric radiation fields. Such circulation changes in a warming climate have not been comprehensively discussed, and will be explored here for a CMIP6 MME for the extended MENA region."

    nature.com/articles/s41598-024

    #ClimateCrisis #IncreasedAtmosphericMoisture #Humidity #Uninhabitable