Browsing Institutt for miljø- og naturvitskap by Author "Nowak, Aga"
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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 ... -
Spatial and temporal dynamics of dissolved organic carbon, chlorophyll, nutrients, and trace metals in maritime Antarctic snow and snowmelt
Nowak, Aga; Hodson, Andrew J.; Turchyn, Alexandra V. (Journal article; Peer reviewed, 2018)Despite scientific interest in the investigation of biogeochemical changes in meltwaters of the Antarctic Peninsula, we still lack an understanding of the seasonal dynamics and release of dissolved and particulate carbon, ... -
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 ...