Zobrazeno 1 - 10
of 1 175
pro vyhledávání: '"G Picard"'
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
Publikováno v:
Earth System Science Data, Vol 16, Pp 3913-3934 (2024)
The surface temperature of snow cover is a key variable, as it provides information about the current state of the snowpack, helps predict its future evolution, and enhances estimations of the snow water equivalent. Although satellites are often used
Externí odkaz:
https://doaj.org/article/7d7905bb42554806bf6309aaef6eaa60
Autor:
R. Harris Stuart, A. Landais, L. Arnaud, C. Buizert, E. Capron, M. Dumont, Q. Libois, R. Mulvaney, A. Orsi, G. Picard, F. Prié, J. Severinghaus, B. Stenni, P. Martinerie
Publikováno v:
The Cryosphere, Vol 18, Pp 3741-3763 (2024)
While the processes controlling pore closure are broadly understood, the physical mechanisms driving the associated elemental fractionation remains ambiguous. Previous studies have shown that the pore closure process leads to a depletion in small-siz
Externí odkaz:
https://doaj.org/article/a525122c17004b9885eea5a1ff9bfd17
Autor:
N. E. Ochwat, T. A. Scambos, A. F. Banwell, R. S. Anderson, M. L. Maclennan, G. Picard, J. A. Shates, S. Marinsek, L. Margonari, M. Truffer, E. C. Pettit
Publikováno v:
The Cryosphere, Vol 18, Pp 1709-1731 (2024)
In late March 2011, landfast sea ice (hereafter, “fast ice”) formed in the northern Larsen B embayment and persisted continuously as multi-year fast ice until January 2022. In the 11 years of fast-ice presence, the northern Larsen B glaciers slow
Externí odkaz:
https://doaj.org/article/dbba9d391c7840f1b1fc0cca23ec7d9b
Publikováno v:
The Cryosphere, Vol 18, Pp 869-888 (2024)
Monitoring of lake ice is important to maintain transportation routes, but in recent decades the number of in situ observations have declined. Remote sensing has worked to fill this gap in observations, with active microwave sensors, particularly syn
Externí odkaz:
https://doaj.org/article/267968b6a1d44951bfeb50290bea936a
Publikováno v:
The Cryosphere, Vol 18, Pp 593-608 (2024)
This study explores the seasonal variations in snow grain size on the East Antarctic Plateau, where dry metamorphism occurs, by using microwave radiometer observations from 2000 to 2022. Local meteorological conditions and large-scale atmospheric phe
Externí odkaz:
https://doaj.org/article/c719de4475fa4950897e6aac675f95eb
Autor:
J. E. Sicart, V. Ramseyer, G. Picard, L. Arnaud, C. Coulaud, G. Freche, D. Soubeyrand, Y. Lejeune, M. Dumont, I. Gouttevin, E. Le Gac, F. Berger, J.-M. Monnet, L. Borgniet, É. Mermin, N. Rutter, C. Webster, R. Essery
Publikováno v:
Earth System Science Data, Vol 15, Pp 5121-5133 (2023)
Forests strongly modify the accumulation, metamorphism and melting of snow in midlatitude and high-latitude regions. Recently, snow routines in hydrological and land surface models were improved to incorporate more accurate representations of forest
Externí odkaz:
https://doaj.org/article/30a5b7bf13564384a5e1faea82007844
Publikováno v:
The Cryosphere, Vol 17, Pp 4267-4288 (2023)
Both regional climate models (RCMs) and remote sensing (RS) data are essential tools in understanding the response of polar regions to climate change. RCMs can simulate how certain climate variables, such as surface melt, runoff and snowfall, are lik
Externí odkaz:
https://doaj.org/article/bf61bc22f7374c618ed001cab46cc7c0
Publikováno v:
The Cryosphere, Vol 17, Pp 3667-3694 (2023)
Surface melting is one of the primary drivers of ice shelf collapse in Antarctica and is expected to increase in the future as the global climate continues to warm because there is a statistically significant positive relationship between air tempera
Externí odkaz:
https://doaj.org/article/3535244e7c564942934e25ed45826b97
Publikováno v:
The Cryosphere, Vol 17, Pp 3329-3342 (2023)
The assimilation of data from Earth observation satellites into numerical models is considered to be the path forward to estimate snow cover distribution in mountain catchments, providing accurate information on the mountainous snow water equivalent
Externí odkaz:
https://doaj.org/article/54fe5dbe63544a6eab4c9a55c128f5bb