Zobrazeno 1 - 10
of 64
pro vyhledávání: '"L. P. Tremblay"'
Autor:
M. Plante, J.-F. Lemieux, L. B. Tremblay, A. Tivy, J. Angnatok, F. Roy, G. Smith, F. Dupont, A. K. Turner
Publikováno v:
The Cryosphere, Vol 18, Pp 1685-1708 (2024)
Icepack (v1.1.0) – the column thermodynamics model of the Community Ice CodE (CICE) version 6 – is used to assess how changing the thermodynamics from the Bitz and Lipscomb (1999) physics (hereafter BL99) to the mushy-layer physics impacts the mo
Externí odkaz:
https://doaj.org/article/c0b87a4b8e7e4732a41a85e38ff8aead
Publikováno v:
Remote Sensing, Vol 16, Iss 18, p 3357 (2024)
We apply the Canny edge algorithm to imagery from the Utqiaġvik coastal sea ice radar system (CSIRS) to identify regions of open water and sea ice and quantify ice concentration. The radar-derived sea ice concentration (SIC) is compared against the
Externí odkaz:
https://doaj.org/article/8db8a953a6984d9e8a76e60b2752ccac
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 15, Iss 9, Pp n/a-n/a (2023)
Abstract Most viscous‐plastic sea ice models use the elliptical yield curve. This yield curve has a fundamental flaw: it excludes acute angles between deformation features at high resolution. Conceptually, the teardrop (TD) and parabolic lens (PL)
Externí odkaz:
https://doaj.org/article/b2536905593c4445b316b748f17c1c56
Publikováno v:
The Cryosphere, Vol 16, Pp 533-557 (2022)
Free-drift estimates of sea ice motion are necessary to produce a seamless observational record combining buoy and satellite-derived sea ice motion vectors. We develop a new parameterization for the free drift of sea ice based on wind forcing, wind t
Externí odkaz:
https://doaj.org/article/7f57cb8a16f840be8c59c77bb7dd0298
Autor:
M. Plante, L. B. Tremblay
Publikováno v:
The Cryosphere, Vol 15, Pp 5623-5638 (2021)
The Maxwell elasto-brittle (MEB) rheology uses a damage parameterization to represent the brittle fracture of sea ice without involving plastic laws to constrain the sea ice deformations. The conventional MEB damage parameterization is based on a cor
Externí odkaz:
https://doaj.org/article/eca584a7b93f4b7bae6464bb862edaeb
Publikováno v:
The Cryosphere, Vol 15, Pp 2873-2888 (2021)
The standard viscous–plastic (VP) sea ice model with an elliptical yield curve and a normal flow rule has at least two issues. First, it does not simulate fracture angles below 30∘ in uni-axial compression, in contrast with observations of linear
Externí odkaz:
https://doaj.org/article/01363a9d2acf431b8e1c9ead619c8f68
Autor:
S. Ren, X. Liang, Q. Sun, H. Yu, L. B. Tremblay, B. Lin, X. Mai, F. Zhao, M. Li, N. Liu, Z. Chen, Y. Zhang
Publikováno v:
Geoscientific Model Development, Vol 14, Pp 1101-1124 (2021)
The Arctic regional coupled sea-ice–ocean–atmosphere model (ArcIOAM) has been developed to provide reliable Arctic sea ice prediction on seasonal timescales. The description and implementation of ArcIOAM and its preliminary results for the year o
Externí odkaz:
https://doaj.org/article/603c8988cea54c0788efab5009df4bd9
Publikováno v:
The Cryosphere, Vol 14, Pp 3465-3478 (2020)
Sea ice pressure poses great risk for navigation; it can lead to ship besetting and damages. Contemporary large-scale sea ice forecasting systems can predict the evolution of sea ice pressure. There is, however, a mismatch between the spatial resolut
Externí odkaz:
https://doaj.org/article/10a1373178c64c56831d3367f06292c4
Publikováno v:
The Cryosphere, Vol 14, Pp 1289-1310 (2020)
This study compares the accuracy of visually estimated ice concentrations by eight analysts at the Canadian Ice Service with three standards: (i) ice concentrations calculated from automated image segmentation, (ii) ice concentrations calculated from
Externí odkaz:
https://doaj.org/article/675a12f9762249c1bc540171f076cdb0
Publikováno v:
Earth's Future, Vol 9, Iss 9, Pp n/a-n/a (2021)
Abstract Sea ice will persist longer in the Last Ice Area (LIA), north of Canada and Greenland, than elsewhere in the Arctic. We combine earth system model ensembles with a sea‐ice tracking utility (SITU) to explore sources of sea ice (the “ice s
Externí odkaz:
https://doaj.org/article/d21fffa50d23446c9faa1d734320f113