Kristoffer Aalstad

Image of Kristoffer Aalstad
Norwegian version of this page
Phone +47 22855836
Room 404
Username
Visiting address Sem Sælands vei 1 Geologibygningen 0371 OSLO
Postal address Postboks 1047 Blindern 0316 OSLO

Academic interests

Using data assimilation (≈Bayesian inference) to fuse observations and models to improve our understanding of the changing Earth system, mainly in cold regions. I'm currently working on snow reanalysis using satellites and surface flux inversion using drone swarms. 

Background

2019-now: Researcher, Dept. of Geosciences, Uni. Oslo

2018: Visiting researcher, NCAR (Boulder, CO, USA)

2015-2019: PhD, Dept. of Geosciences, Uni. Oslo

2015: MSc Meteorology, Dept. of Geosciences, Uni. Oslo

2013: BSc Physics, Dept. of Physics, Uni. Oslo

 

Tags: Data Assimilation, Remote Sensing, Meteorology, Snow, Permafrost

Publications

  • Aalstad, Kristoffer; Westermann, Sebastian & Bertino, Laurent (2020). Evaluating satellite retrieved fractional snow-covered area at a high-Arctic site using terrestrial photography. Remote Sensing of Environment.  ISSN 0034-4257.  239 . doi: 10.1016/j.rse.2019.111618 Full text in Research Archive.
  • Fiddes, Joel; Aalstad, Kristoffer & Westermann, Sebastian (2019). Hyper-resolution ensemble-based snow reanalysis in mountain regions using clustering. Hydrology and Earth System Sciences.  ISSN 1027-5606.  23(11), s 4717- 4736 . doi: 10.5194/hess-23-4717-2019 Full text in Research Archive. Show summary
  • Yilmaz, Yeliz; Aalstad, Kristoffer & Sen, Omer L. (2019). Multiple remotely sensed lines of evidence for a depleting seasonal snowpack in the near east. Remote Sensing.  ISSN 2072-4292.  11(5) . doi: 10.3390/rs11050483 Full text in Research Archive.
  • Aalstad, Kristoffer; Westermann, Sebastian; Schuler, Thomas; Boike, Julia & Bertino, Laurent (2018). Ensemble-based assimilation of fractional snow-covered area satellite retrievals to estimate the snow distribution at Arctic sites. The Cryosphere.  ISSN 1994-0416.  12(1), s 247- 270 . doi: 10.5194/tc-12-247-2018 Full text in Research Archive. Show summary

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  • Christakos, Konstantinos; Varlas, George; Cheliotis, Ioannis; Aalstad, Kristoffer; Papadopoulos, Anastasios; Katsafados, Petros & Steeneveld, Gert Jan (2017). Quantitative variability of renewable energy resources in Norway.
  • Leclercq, Paul Willem; Aalstad, Kristoffer; Altena, Bas & Elvehøy, Hallgeir (2017). Modelling of glacier surface mass balance with assimilation of glacier mass balance and snow cover observations from remote sensing.
  • Leclercq, Paul Willem; Aalstad, Kristoffer; Elvehøy, Hallgeir & Altena, Bas (2016). Assimilation of glacier mass balance and snow cover fraction observations in a glacier surface mass balance model.
  • Aalstad, Kristoffer; Bertino, Laurent & Westermann, Sebastian (2016). An ensemble-based subgrid snow data assimilation framework.
  • Leclercq, Paul Willem; Aalstad, Kristoffer; Elvehøy, Hallgeir & Altena, Bas (2016). Assimilation of glacier mass balance and snow cover fraction observations in a glacier surface mass balance model.
  • Schuler, Thomas; Aalstad, Kristoffer; Aas, Kjetil Schanke; Burkhart, John; Dunse, Thorben; Filhol, Simon; Hulth, John; Østby, Torbjørn Ims & Westermann, Sebastian (2016). Towards real-time snow products for Svalbard.
  • Westermann, Sebastian; Langer, Moritz; Østby, Torbjørn Ims; Peter, Maria; Boike, Julia; Gisnås, Kjersti; Aalstad, Kristoffer; Schuler, Thomas; Etzelmüller, Bernd; Jaroslav, Obu; Georg, Schwamborn & Lutz, Schirrmeister (2016). Mapping the thermal state of permafrost through modeling and remote sensing.

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Published Oct. 15, 2015 3:37 PM - Last modified Aug. 19, 2020 5:11 PM