Browsing Institutt for geofag by Author "Myhre, Cathrine Lund"

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  • Atmospheric methane evolution the last 40 years 
    Dalsøren, Stig Bjørløw; Myhre, Cathrine Lund; Myhre, Gunnar; Gomez-Pelaez, Angel J.; Søvde, Ole Amund; Isaksen, Ivar S A; Weiss, Ray F.; Harth, Christina M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
    Observations at surface sites show an increase in global mean surface methane (CH4) of about 180 parts per billion (ppb) (above 10 %) over the period 1984–2012. Over this period there are large fluctuations in the annual ...
  • Extensive reduction of surface UV radiation since 1750 in world's populated regions 
    Kvalevåg, Maria Malene; Myhre, Gunnar; Myhre, Cathrine Lund (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2009)
    Human activity influences a wide range of components that affect the surface UV radiation levels, among them ozone at high latitudes. We calculate the effect of human-induced changes in the surface erythemally weighted ...