Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Randall Scharien"'
Publikováno v:
Canadian Journal of Remote Sensing, Vol 49, Iss 1 (2023)
Sea ice mapping using Synthetic Aperture Radar (SAR) in the melt season poses challenges, due to wet snow and melt ponds complicating sea ice type separability. To address this, we analyzed fully polarimetric (FP) and simulated compact polarimetric (
Externí odkaz:
https://doaj.org/article/f7719cca54994b3290b7b9173b5a4298
Autor:
Jessie M. Creamean, Kevin Barry, Thomas C. J. Hill, Carson Hume, Paul J. DeMott, Matthew D. Shupe, Sandro Dahlke, Sascha Willmes, Julia Schmale, Ivo Beck, Clara J. M. Hoppe, Allison Fong, Emelia Chamberlain, Jeff Bowman, Randall Scharien, Ola Persson
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-12 (2022)
The Arctic is changing faster than anywhere else on Earth. Interactions between clouds and aerosols play a role in these changes. We report how the quantities and origins of aerosols that affect cloud ice formation change over a full sea ice cycle
Externí odkaz:
https://doaj.org/article/f136ea8b19b148088342a83e77c9c5f8
Autor:
Jessie M. Creamean, Kevin Barry, Thomas C. J. Hill, Carson Hume, Paul J. DeMott, Matthew D. Shupe, Sandro Dahlke, Sascha Willmes, Julia Schmale, Ivo Beck, Clara J. M. Hoppe, Allison Fong, Emelia Chamberlain, Jeff Bowman, Randall Scharien, Ola Persson
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-1 (2022)
Externí odkaz:
https://doaj.org/article/712c20ee156345a989980c5bba75b249
Autor:
Silvie Marie Cafarella, Randall Scharien, Torsten Geldsetzer, Stephen Howell, Christian Haas, Rebecca Segal, Sasha Nasonova
Publikováno v:
Canadian Journal of Remote Sensing, Vol 45, Iss 3-4, Pp 457-475 (2019)
Utilizing synthetic aperture radar (SAR) data to understand and map sea ice roughness is an active area of research. An object-based image analysis is here used to quantitatively link the winter first-year sea ice surface roughness to C-band RADARSAT
Externí odkaz:
https://doaj.org/article/94afca31a2d64181acc3b6a00e3447cb
Publikováno v:
Remote Sensing, Vol 10, Iss 10, p 1603 (2018)
Early-summer melt pond fraction is predicted using late-winter C-band backscatter of snow-covered first-year sea ice. Aerial photographs were acquired during an early-summer 2012 field campaign in Resolute Passage, Nunavut, Canada, on smooth first-ye
Externí odkaz:
https://doaj.org/article/15a1b8573fa74af2b2ff076445c23f40
Autor:
Vishnu Nandan, Rosemary Willatt, Robbie Mallett, Julienne Stroeve, Torsten Geldsetzer, Randall Scharien, Rasmus Tonboe, Jack Landy, David Clemens-Sewall, Arttu Jutila, David N. Wagner, Daniela Krampe, Marcus Huntemann, John Yackel, Mallik Mahmud, David Jensen, Thomas Newman, Stefan Hendricks, Gunnar Spreen, Amy Macfarlane, Martin Schneebeli, James Mead, Robert Ricker, Michael Gallagher, Claude Duguay, Ian Raphael, Chris Polashenski, Michel Tsamados, Ilkka Matero, Mario Hoppman
Wind transport alters the snow topography and microstructure on sea ice through snow redistribution controlled by deposition and erosion. The impact of these processes on radar signatures is poorly understood. Here, we examine the effects of snow red
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afa28dd83df933b8d28e8fdfd74ff6b0
https://doi.org/10.5194/tc-2022-116
https://doi.org/10.5194/tc-2022-116
