Blar i NORCE vitenarkiv på forfatter "Malnes, Eirik"
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A 20-Year MODIS-Based Snow Cover Dataset for Svalbard and Its Link to Phenological Timing and Sea Ice Variability
Vickers, Hannah; Karlsen, Stein Rune; Malnes, Eirik (Peer reviewed; Journal article, 2020)The climate in Svalbard has been warming dramatically compared with the global average for the last few decades. Seasonal snow cover, which is sensitive to temperature and precipitation changes, is therefore expected to ... -
Analyse av Sentinel-1 data til deteksjon og varsling av kvikkleireskredet på Gjerdrum
Malnes, Eirik; Eckerstorfer, Markus (Research report, 2022)Denne rapporten gir en oversikt over arbeidet gjort i prosjektet «Analyse av Sentinel-1 data i forkant av kvikkleireskredet på Gjerdrum». Prosjektets formål var å undersøke om backscatter data fra Sentinel-1 satellittene ... -
An analysis of winter rain-on-snow climatology in Svalbard
Vickers, Hannah; Saloranta, Tuomo; Køltzow, Morten Andreas Ødegaard; van Pelt, Ward J. J.; Malnes, Eirik (Peer reviewed; Journal article, 2024)Rain-on-snow (ROS) events are becoming an increasingly common feature of the wintertime climate Svalbard in the High Arctic due to a warming climate. Changes in the frequency, intensity, and spatial distribution of wintertime ... -
A compilation of snow cover datasets for svalbard: A multi-sensor, multi-model study
Vickers, Hannah; Malnes, Eirik; Van Pelt, Ward; Pohjola, Veijo; Killie, Mari Anne; Saloranta, Tuomo; Karlsen, Stein Rune (Journal article; Peer reviewed, 2021)Reliable and accurate mapping of snow cover are essential in applications such as water resource management, hazard forecasting, calibration and validation of hydrological models and climate impact assessments. Optical ... -
Consistent ice and open water classification combining historical synthetic aperture radar satellite images from ERS-1/2, Envisat ASAR, RADARSAT-2 and Sentinel-1A/B
Johansson, Malin; Malnes, Eirik; Gerland, Sebastian; Cristea, Anca; Doulgeris, Anthony Paul; Divine, Dmitry V; Pavlova, Olga; Lauknes, Tom Rune (Peer reviewed; Journal article, 2019)Synthetic Aperture Radar (SAR) satellite images are used to monitor Arctic sea ice, with systematic data records dating back to 1991. We propose a semi-supervised classification method that separates open water from sea ... -
Deteksjon av Sørpeskred med radarsatellitt. (2/2016)
Malnes, Eirik; Eckerstorfer, Markus; Sund, Monica (Research report, 2016)Rapporten utreder mulighetene for å bruke radarsatellitter til å detektere sørpeskred. Dette ble gjort ved å analysere tilgjengelige bilder fra sensorene, Sentinel-1A, Radarsat-2 og Envisat ASAR for kjente skredposisjoner ... -
Fjordis - muligheter for overvåkning av is i fjordene rundt Svalbard. (3/2016)
Malnes, Eirik; Vickers, Hannah (Research report, 2016) -
Long-Term Water Surface Area Monitoring and Derived Water Level Using Synthetic Aperture Radar (SAR) at Altevatn, a Medium-Sized Arctic Lake
Vickers, Hannah; Malnes, Eirik; Høgda, Kjell Arild (Peer reviewed; Journal article, 2019)Monitoring water storage in lakes and reservoirs is critical to water resource management, especially in a changing climate. Satellite microwave remote sensing offers a weather and light-independent solution for mapping ... -
Multi-Sensor Analysis of Snow Seasonality and a Preliminary Assessment of SAR Backscatter Sensitivity to Arctic Vegetation: Limits and Capabilities
Stendardi, Laura; Karlsen, Stein Rune; Malnes, Eirik; Nilsen, Lennart; Tømmervik, Hans; Cooper, Elisabeth J.; Notarnicola, Claudia (Peer reviewed; Journal article, 2022)Snow melt timing and the last day of snow cover have a significant impact on vegetation phenology in the Svalbard archipelago. The aim of this study is to assess the seasonal variations of the snow using a multi-sensor ... -
Satellittbasert overvåkning av vekstsesongen på Svalbard, - status 2012
Karlsen, Stein Rune; Malnes, Eirik; Høgda, Kjell Arild (Research report, 2013)Denne rapporten omhandler satellittbasert overvåkning av vekstsesongen (fenologi) på Svalbard. MODIS-NDVI satellittdata er brukt til å kartlegge, start, slutt og lengden på vekstsesongen for årene 2000 til 2012. Kombinert ... -
SENBYGG
Malnes, Eirik; Anfinsen, Stian Normann; Lauknes, Tom Rune; Haarpaintner, Jörg; Wendt, Lotte; Grahn, Jakob (Research report, 2023)Rapporten dokumenterer resultater fra prosjektet SENBYGG der Statens kartverk er oppdragsgiver. Prosjektet har som formål å detektere bygningsendringer (nybygg, tilbygg eller revet bygg) ved hjelp av radarsatellittene ... -
SIOS’s Earth Observation (EO), Remote Sensing (RS), and operational activities in response to COVID-19
Jawak, Shridhar D.; Andersen, Bo N.; Pohjola, Veijo; Godøy, Øystein; Hübner, Christiane E.; Jennings, Inger; Ignatiuk, Dariusz; Holmen, Kim; Sivertsen, Agnar; Hann, Richard; Tømmervik, Hans; Kääb, Andreas; Błaszczyk, Małgorzata; Salzano, Roberto; Luks, Bartłomiej; Høgda, Kjell Arild; Storvold, Rune; Nilsen, Lennart; Salvatori, Rosamaria; Krishnan, Kottekkatu Padinchati; Chatterjee, Sourav; Lorentzen, Dag Arne; Erlandsson, Rasmus; Lauknes, Tom Rune; Malnes, Eirik; Karlsen, Stein Rune; Enomoto, Hiroyuki; Fjæraa, Ann Mari; Zhang, Jie; Marty, Sabine; Nygård, Knut Ove; Lihavainen, Heikki (Journal article; Peer reviewed, 2021)Svalbard Integrated Arctic Earth Observing System (SIOS) is an international partnership of research institutions studying the environment and climate in and around Svalbard. SIOS is developing an efficient observing system, ... -
Skreddeteksjon E69 Skarvbergtunnelen. (12/2018)
Eckerstorfer, Markus; Malnes, Eirik (Research report, 2018) -
A Synthetic Aperture Radar Based Method for Long Term Monitoring of Seasonal Snowmelt and Wintertime Rain-On-Snow Events in Svalbard
Vickers, Hannah; Malnes, Eirik; Eckerstorfer, Markus (Peer reviewed; Journal article, 2022)Snow cover characteristics are highly sensitive to variations in temperature and precipitation. In Svalbard, these parameters are undergoing significant change in response to a rapidly warming climate and its associated ... -
UAV-BORNE UWB RADAR FOR SNOWPACK SURVEYS. (8/2018)
Eckerstorfer, Markus; Jenssen, Rolf Ole Rydeng; Kjellstrup, Andre; Storvold, Rune; Malnes, Eirik; Jacobsen, Svein Ketil (Research report, 2018)In this report we summarize the capabilities and technical characteristics of our UAV-borne UWB radar system, designed for conducting snow surveys. We developed an ultrawideband snow sounder that is capable of imaging snow ... -
X/L-band SAR on Lufttransport’s Dornier DO-228 (LN-LYR)
Lauknes, Tom Rune; Rouyet, Line; Sivertsen, Agnar Holten; Yitayew, Temesgen Gebrie; Malnes, Eirik; Grahn, Jakob; Ricker, Robert; van Oostveen, Jelte Geert (Research report, 2022)Current climate changes as well as an increased marine activity in the arctic regions impose a growing need for improved scientific observations and increased situational awareness. This document describes mission requirements ...