Blar i Institutt for miljø- og naturvitskap på forfatter "Christiansen, Hanne H"

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    • Seasonal Dynamics of Methane and Carbon Dioxide Evasion From an Open System Pingo: Lagoon Pingo, Svalbard 

      Hodson, Andrew J.; Nowak, Aga; Redeker, KR; Holmlund, Erik S.; Christiansen, Hanne H; Turchyn, Alexandra V. (Journal article; Peer reviewed, 2019)
      The processes associated with the release of CH4 and CO2 from sub-permafrost groundwaters are considered through a year-long monitoring investigation at a terrestrial seepage site in West Spitsbergen. The site is an open ...

    • Sub-permafrost methane seepage from open-system pingos in Svalbard 

      Hodson, Andrew; Nowak, Aga; Hornum, Mikkel Toft; Senger, Kim; Redeker, Kelly Robert; Christiansen, Hanne H; Jessen, Søren; Betlem, Peter; Thornton, Steve F.; Turchyn, Alexandra V.; Olaussen, Snorre; Marca, Alina (Journal article; Peer reviewed, 2020)
      Methane release from beneath lowland permafrost represents an important uncertainty in the Arctic greenhouse gas budget. Our current knowledge is arguably best developed in settings where permafrost is being inundated by ...