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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
In recent years a vast amount of glacier surface velocity data from satellite imagery has emerged based on correlation between repeat images. Thereby, much emphasis has been put on the fast processing of large data volumes ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
Every spring the mechanical river ice break-up and associated ice-runs or flooding pose a threat to communities at Northern latitudes. Monitoring and mitigation efforts along remote Arctic rivers are possible but logistically ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Abstract Negribreen, a tidewater glacier located in central eastern Svalbard, began actively surging after it experienced an initial collapse in summer 2016. The surge resulted in horizontal surface velocities of more than ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Abstract Velocities within an icefall are typically the fastest within a glacier system and experience complex flow. The combination of convergent and fast flow, and steep slope generate a quickly changing and intensely ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
The measurement of glacier velocity fields using repeat satellite imagery has become a standard method of cryospheric research. However, the reliable discovery of important glacier velocity variations on a large scale is ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Currently, the Sentinel-2 twin satellite constellation of the Copernicus program is in operational mode and generates high repeat acquisitions at high-latitudes during polar day. These pushbroom satellites have a large ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Abstract. The PlanetScope constellation consists of ∼150 optical cubesats that are evenly distributed like strings of pearls on two orbital planes, scanning the Earth's land surface once per day with an approximate spatial ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Satellite measurements of coseismic displacements are typically based on synthetic aperture radar (SAR) interferometry or amplitude tracking, or based on optical data such as from Landsat, Sentinel-2, SPOT, ASTER, very ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Optical satellite products are available at different processing levels. Of these products, terrain corrected (i.e., orthorectified) products are the ones mostly used for glacier displacement estimation. For terrain ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Contemporary optical remote sensing satellites or constellations of satellites can acquire imagery at sub-weekly or even daily timescales. These systems have the potential to facilitate intra-seasonal, short-term surface ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
When Earth observation satellite systems are designed, one typically prefers a sun-synchronous orbit. However, the first generations of cubesats from Planet were deployed out of the International Space Station (ISS) and ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)
With its temporal resolution of 10 days (five days with two satellites, and significantly more at high latitudes), its swath width of 290 km, and its 10 m and 20 m spatial resolution bands from the visible to the shortwave ...