News

Combined images processed by Andreas Max Kääb from the Sentinel 1 radar satellites. Images: Andreas Kääb/UiO, satellite data by EU/ESA Copernicus. More detailed picture below in the article.
Published Oct. 26, 2017 12:34 PM

Southern Norway has been hit several times by exceptionally heavy rain and following flooding in October 2017. The cloud cover during such rain events makes it difficult to get an overview over the flooded areas from air and space. But the new European Sentinel 1A and 1B radar satellites can look through the clouds, and give an accurate and timely overview over the affected areas

The Langfjordjøkulen in Finnmark has decreased in the recent years. This picture is taken July 16, 2016 where you see the front of the glacier at the end of the valley. The ice tongue has retreated throughout the valley during about a 100 years period. Photo: Jonas Paulsen
Published Aug. 31, 2017 3:00 PM

There are many glaciers in the Norwegian landscape. They are at risk of decline drastically and perhaps disappearing due to a warmer climate. Especially exposed are the glaciers in Northern Norway and the smallest glaciers. Interview with Solveig Havstad Winsvold in the newspaper Morgenbladet in the column 'The doctor answers' in June.

Kronebreen, Svalbard: Field Camp is settled in preparation for the 2 week campaign in August 2016. The main goal of the campaign and project was to calibrate passive seismic and acoustic instruments to quantify dynamic glacier ice loss. Photo: Christopher Nuth
Published Jan. 19, 2017 4:48 PM

Cross disciplinary approaches using both seismic recordings and satellite observations of glaciers provide data to estimate glacier frontal ablation rates. This provides new insight into the processes that control dynamic mass loss of glaciers into the sea. Such cross disciplinary approaches can be valuable in climate research.

Published Oct. 13, 2016 10:35 AM

The Copernicus Sentinel-1 and Sentinel-2 satellites have found signs of an ongoing glacier dislocation between two recent massive ice avalanches in Tibet.

Sentinels team up reporting 12. October.

3D visualation in research: A 3D representation of the glacier elevation changes around Daugaard Jensen glacier from 1987 to 2014. The image is the 1987 orthophoto and the elevation change color scale ranges from ­1 to 0.5 meters per year. Data and differences as described in Scientific Data (Korsgaard, Nuth et. al. 2016)
Published May 31, 2016 4:38 PM

Recently, a Danish-Norwegian research team re-processed thousands of aerial photos into 3D Digital Elevation Models (DEM) surrounding the entire coastline of Greenland. The new data extends the precise geometric record of Greenland glacier margins to the late 1970s and 80s and can be used to quantify the decline in the ice mass, for example. The data is freely available to the public domain.

 Kangiata Nunata Sermia, Sydvestgrønland. På fjellveggen sees merker etter isbreen på forskjellige tidspunkt. Den øvre trimlinjen (overgangen) mellom lysere og mørkere fjellpartier viser isens utbredelse under den lille istid, mens de nedre linjene viser isens udbredelse på senere tidspunkt. Foto: Hans Henrik Tholstrup, Statens Naturhistoriske Museum, DK
Published Dec. 18, 2015 1:23 PM

En ny studie basert på eldre foto viser at innlandsisen på Grønland er i rask retur. Det har lenge vore usikkert hvor mye bremasse Grønlandsisen har tapt og hvor raskt nedsmeltingen skjer. Etter å ha sammenlignet gamle og nye foto og satellittdata har forskerne nå fått mer kunnskap. Studien er publisert i Nature, og en av medforfatterne er Christopher Nuth, Institutt for geofag.

Kish Island: Photo from the award ceremony at the conference SMPR 2015. Luc Girod second from left. Photo: Private
Published Dec. 3, 2015 1:47 PM

PhD Luc Girod from Department of Geosciences recently received the award for best paper at this year SMPR conference within geomatics, environmental monitoring and satellite data. The Conference was held at the University of Tehran in November.

Foto: Østsiden av fjellet Monte Rosa (Italia, Sveits), er en kilde for stein og snøskred til befolkede områder like ved fjellsiden. Foto: A. Kääb
Published Sep. 29, 2015 12:45 PM

Isbreer, snø og permafrost på verdens høyeste fjell gjennomgår store endringer, noe som kan gi store konsekvenser for både mennesker og miljø. En tverrfaglig forskergruppe har sett på hva som er drivere av klimaendringer i alpine områder, og hva risiko som følger med endringen. Dette har resultert i boken The High-Mountain Cryosphere.

Désirée Treichler. Photo: Private
Published Mar. 11, 2015 10:03 AM

Glaciologists and other scientists and students from around the world met in Kathmandu in Nepal in the first week in March 2015. The venue was the International Symposium on Glaciology in High Mountain Asia. PhD student Désirée Treichler from the Department of Geosciences attended the academic program, and received a prize for best student presentation for her presentation about hydrological consequences of glacier mass changes in high mountain Asia.