Zobrazeno 1 - 10
of 41
pro vyhledávání: '"M. Sandells"'
Autor:
C. B. Menard, S. Rasmus, I. Merkouriadi, G. Balsamo, A. Bartsch, C. Derksen, F. Domine, M. Dumont, D. Ehrich, R. Essery, B. C. Forbes, G. Krinner, D. Lawrence, G. Liston, H. Matthes, N. Rutter, M. Sandells, M. Schneebeli, S. Stark
Publikováno v:
The Cryosphere, Vol 18, Pp 4671-4686 (2024)
The Arctic poses many challenges for Earth system and snow physics models, which are commonly unable to simulate crucial Arctic snowpack processes,such as vapour gradients and rain-on-snow-induced ice layers. These limitations raise concerns about th
Externí odkaz:
https://doaj.org/article/28dc0f2b9dd047b1b2f12ea27980155d
Autor:
M. Sandells, N. Rutter, K. Wivell, R. Essery, S. Fox, C. Harlow, G. Picard, A. Roy, A. Royer, P. Toose
Publikováno v:
The Cryosphere, Vol 18, Pp 3971-3990 (2024)
Accurate simulations of snow emission in surface-sensitive microwave channels are needed to separate snow from atmospheric information essential for numerical weather prediction. Measurements from a field campaign in Trail Valley Creek, Inuvik, Canad
Externí odkaz:
https://doaj.org/article/b5a3c8412fd04cf8bf035296d40747c7
Autor:
V. R. Dutch, N. Rutter, L. Wake, O. Sonnentag, G. Hould Gosselin, M. Sandells, C. Derksen, B. Walker, G. Meyer, R. Essery, R. Kelly, P. Marsh, J. Boike, M. Detto
Publikováno v:
Biogeosciences, Vol 21, Pp 825-841 (2024)
Estimates of winter (snow-covered non-growing season) CO2 fluxes across the Arctic region vary by a factor of 3.5, with considerable variation between measured and simulated fluxes. Measurements of snow properties, soil temperatures, and net ecosyste
Externí odkaz:
https://doaj.org/article/d44b544e2d354b0b8e9758456d1df8e3
Publikováno v:
The Cryosphere, Vol 17, Pp 4325-4341 (2023)
Improved modelling of snow emissivity is needed to improve the assimilation of surface-sensitive atmospheric sounding observations from satellites in polar regions for numerical weather prediction (NWP). This paper evaluates emissivity simulated with
Externí odkaz:
https://doaj.org/article/fa72a0a53241444d805b88b32bf152de
Autor:
V. R. Dutch, N. Rutter, L. Wake, M. Sandells, C. Derksen, B. Walker, G. Hould Gosselin, O. Sonnentag, R. Essery, R. Kelly, P. Marsh, J. King, J. Boike
Publikováno v:
The Cryosphere, Vol 16, Pp 4201-4222 (2022)
Snowpack microstructure controls the transfer of heat to, as well as the temperature of, the underlying soils. In situ measurements of snow and soil properties from four field campaigns during two winters (March and November 2018, January and March 2
Externí odkaz:
https://doaj.org/article/ac0a486e886949edaa0ed722cda015fb
Autor:
J. Lemmetyinen, J. Cohen, A. Kontu, J. Vehviläinen, H.-R. Hannula, I. Merkouriadi, S. Scheiblauer, H. Rott, T. Nagler, E. Ripper, K. Elder, H.-P. Marshall, R. Fromm, M. Adams, C. Derksen, J. King, A. Meta, A. Coccia, N. Rutter, M. Sandells, G. Macelloni, E. Santi, M. Leduc-Leballeur, R. Essery, C. Menard, M. Kern
Publikováno v:
Earth System Science Data, Vol 14, Pp 3915-3945 (2022)
The European Space Agency SnowSAR instrument is a side-looking, dual-polarised (VV/VH), X/Ku band synthetic aperture radar (SAR), operable from various sizes of aircraft. Between 2010 and 2013, the instrument was deployed at several sites in Northern
Externí odkaz:
https://doaj.org/article/aaff034f91164fc18bd05d0a36bdcf85
Review article: Global monitoring of snow water equivalent using high-frequency radar remote sensing
Autor:
L. Tsang, M. Durand, C. Derksen, A. P. Barros, D.-H. Kang, H. Lievens, H.-P. Marshall, J. Zhu, J. Johnson, J. King, J. Lemmetyinen, M. Sandells, N. Rutter, P. Siqueira, A. Nolin, B. Osmanoglu, C. Vuyovich, E. Kim, D. Taylor, I. Merkouriadi, L. Brucker, M. Navari, M. Dumont, R. Kelly, R. S. Kim, T.-H. Liao, F. Borah, X. Xu
Publikováno v:
The Cryosphere, Vol 16, Pp 3531-3573 (2022)
Seasonal snow cover is the largest single component of the cryosphere in areal extent, covering an average of 46 × 106 km2 of Earth's surface (31 % of the land area) each year, and is thus an important expression and driver of the Earth's climate. I
Externí odkaz:
https://doaj.org/article/3fc8bc82560543a6b98ee097709577ea
Autor:
R. S. Kim, S. Kumar, C. Vuyovich, P. Houser, J. Lundquist, L. Mudryk, M. Durand, A. Barros, E. J. Kim, B. A. Forman, E. D. Gutmann, M. L. Wrzesien, C. Garnaud, M. Sandells, H.-P. Marshall, N. Cristea, J. M. Pflug, J. Johnston, Y. Cao, D. Mocko, S. Wang
Publikováno v:
The Cryosphere, Vol 15, Pp 771-791 (2021)
The Snow Ensemble Uncertainty Project (SEUP) is an effort to establish a baseline characterization of snow water equivalent (SWE) uncertainty across North America with the goal of informing global snow observational needs. An ensemble-based modeling
Externí odkaz:
https://doaj.org/article/e5567893cba84c9c880ad4c8c81c14e9
Publikováno v:
Geoscientific Model Development, Vol 11, Pp 2763-2788 (2018)
The Snow Microwave Radiative Transfer (SMRT) thermal emission and backscatter model was developed to determine uncertainties in forward modeling through intercomparison of different model ingredients. The model differs from established models by t
Externí odkaz:
https://doaj.org/article/e8823c7af61a4104a48dee2fde0b0819
Publikováno v:
The Cryosphere, Vol 11, Iss 1, Pp 229-246 (2017)
This is the first study to encompass a wide range of coupled snow evolution and microwave emission models in a common modelling framework in order to generalise the link between snowpack microstructure predicted by the snow evolution models and micro
Externí odkaz:
https://doaj.org/article/420d77fa4b1b40d4bcffe6e9902869da