Blar i NORCE vitenarkiv på forfatter "Ricker, Robert"
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Arctic sea ice mass balance in a new coupled ice–ocean model using a brittle rheology framework
Boutin, Guillaume; Olason, Einar; Rampal, Pierre; Regan, Heather; Lique, Camille; Talandier, Claude; Brodeau, Laurent; Ricker, Robert (Peer reviewed; Journal article, 2023)Sea ice is a key component of the Earth's climate system as it modulates the energy exchanges and associated feedback processes at the air–sea interface in polar regions. These exchanges have been suggested to strongly ... -
The evolution of the Fram Strait sea ice volume export decomposed by age: estimating with parameter-optimized sea ice-ocean model outputs
Yang, Yijun; Min, Chao; Luo, Hao; Kauker, Frank; Ricker, Robert; Yang, Qinghua (Peer reviewed; Journal article, 2023)Sea ice export through the Fram Strait is crucial in the dynamic evolution of Arctic sea ice and can further modulate Arctic sea ice mass balance as well as the ocean thermohaline circulation. In this study, based on outputs ... -
Linking scales of sea ice surface topography: evaluation of ICESat-2 measurements with coincident helicopter laser scanning during MOSAiC
Ricker, Robert; Fons, Steven; Jutila, Arttu; Hutter, Nils; Duncan, Kyle; Farrell, Sinead L.; Kurtz, Nathan T.; Hansen, Renee Mie Fredensborg (Peer reviewed; Journal article, 2023)Information about sea ice surface topography and related deformation is crucial for studies of sea ice mass balance, sea ice modeling, and ship navigation through the ice pack. The Ice, Cloud, and land Elevation Satellite-2 ... -
Rain on snow (ROS) understudied in sea ice remote sensing: a multi-sensor analysis of ROS during MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate)
Stroeve, Julienne; Nandan, Vishnu; Willatt, Rosemary; Dadic, Ruzica; Rostosky, Philip; Gallagher, Michael; Mallett, Robbie; Barrett, Andrew; Hendricks, Stefan; Tonboe, Rasmus; McCrystall, Michelle; Serreze, Mark; Thielke, Linda; Spreen, Gunnar; Newman, Thomas; Yackel, John; Ricker, Robert; Tsamados, Michel; Macfarlane, Amy; Hannula, Henna-Reetta; Schneebeli, Martin (Peer reviewed; Journal article, 2022)Arctic rain on snow (ROS) deposits liquid water onto existing snowpacks. Upon refreezing, this can form icy crusts at the surface or within the snowpack. By altering radar backscatter and microwave emissivity, ROS over sea ... -
Sea ice surface temperatures from helicopter-borne thermal infrared imaging during the MOSAiC expedition
Thielke, Linda; Huntemann, Marcus; Hendricks, Stefan; Jutila, Arttu; Ricker, Robert; Spreen, Gunnar (Peer reviewed; Journal article, 2022)The sea ice surface temperature is important to understand the Arctic winter heat budget. We conducted 35 helicopter flights with an infrared camera in winter 2019/2020 during the Multidisciplinary Drifting Observatory for ... -
Sea surface height anomaly and geostrophic current velocity from altimetry measurements over the Arctic Ocean (2011–2020)
Doglioni, Francesca; Ricker, Robert; Rabe, Benjamin; Barth, Alexander; Troupin, Charles; Kanzow, Torsten (Peer reviewed; Journal article, 2023)Satellite altimetry missions flying over the ice-covered Arctic Ocean have opened the possibility of further understanding changes in the ocean beneath the sea ice. This requires complex processing of satellite signals ... -
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 ...