The Compound Impacts of Changing Temperature and Snow Cover on Freeze and Thaw Patterns across Québec

Hatami, Shadi; Nazemi, Ali

doi:10.1061/9780784483701.035

Cited by 3 publications

(4 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Terra and Aqua; and (c) satellite-based FT data, including Number of Frozen Days, Number of Thawed Days and Number of Transitional Days. These variables include the data support for a series of recent publications about Freeze-Thaw characteristics and their dependence with climate and snow variables [2] , [3] , [4] , [5] . The sources of raw data for each of these DATA variables are indicated in the Specification Table.…”

Section: Data Descriptionmentioning

confidence: 94%

“…ERA-Interim [7] ), and/or other data variables (e.g. snow water equivalent) could have been included in the portal, the backbone data of CRDAP-QC are limited to the data support used in a number of recent contributions on the FT characteristics in Québec and their variations under changing climate conditions ( [2] , [3] , [4] , [5] ; see the information about the related data article in the specification table above).…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…Consequently, the value of climate and snow variables can be estimated at the grids of FT-ESDR through weighted averaging. Through numerical experimentation, we find that using the four nearest neighbors can provide the highest accuracy in modeling the mean and standard deviation of the daily temperature and monthly snow depth dataset over different ecozones as well as the Québec as a whole [2] . The regridded estimations are then used to extract the DATA variables as well as their corresponding long-term means and trends.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Cold region data accessibility portal for Québec (CRDAP-QC): An integrated, multi-variable and multi-scale data repository for studying cold-region hydrological processes in Québec

2022

Self Cite

View full text Add to dashboard Cite

Section: Data Descriptionmentioning

confidence: 94%

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Cold region data accessibility portal for Québec (CRDAP-QC): An integrated, multi-variable and multi-scale data repository for studying cold-region hydrological processes in Québec

2022

Self Cite

View full text Add to dashboard Cite

“…Where freeze–thaw cycles meet the gravitational force, the impacts are even more visible, with rapid responses and visible change at the landscape (Hatami & Nazemi, 2021, 2022). In periglacial belt like the European Alps, climate change has already induced landscape and ecosystems changes (Cannone, Sgorbati, & Guglielmin, 2007; Guglielmin et al, 2021; Ponti, Cannone, & Guglielmin, 2021).…”

Section: Introductionmentioning

confidence: 99%

Advances in understanding the cooling rates and bending of needle ice: Photogrammetric and thermal observations leading to the spatial distribution of needle ice creep

Ponti

Guglielmin

2023

Earth Surf Processes Landf

View full text Add to dashboard Cite

The freeze–thaw cycles are a process that dominate entire landscapes with different intensity and magnitudes that are strongly changing in the current climate change conditions. In particular, the diurnal frost heave (FH) and needle ice creep (NIC) are two poorly studied processes, especially in the field, despite their effects on the sediment transportation and vegetation colonization on Alpine slopes. In a site of the Central Alps, we applied photogrammetry, thermal imaging, manual measurements and thermistors logging to improve the knowledge of the driving parameter for the formation and accretion of needle ice, of the relations of their spatial distribution with cooling rates and the frost creep modelling change in the presence of the bending process. Among the driving factors, we demonstrate that very local conditions govern the development of the needle ice, like the air cooling rates, the deepening of the freezing front and the surficial cooling rates. Especially low cooling rates are necessary for an intense process. Also the grain size influences the development of the needle ice with higher needle ice development under fine sediment than under small clasts due to a differential thermal conductivity. Moreover, the bending of needle ice has proved to be dependent on its length, age and type of heaved sediment. Therefore, potential frost creep formulas needed to be ameliorated considering the bending angle. Subsequently, a question about the role of slope gradient in NIC is treated.

show abstract

Compound changes in temperature and snow depth lead to asymmetric and nonlinear responses in landscape freeze–thaw

Hatami

Nazemi

2022

Sci Rep

Self Cite

View full text Add to dashboard Cite

Cycles of freeze–thaw (FT) are among the key landscape processes in cold regions. Under current global warming, understanding the alterations in FT characteristics is of a great importance for advising land management strategies in northern latitudes. Using a generic statistical approach, we address the impacts of compound changes in air temperature and snow depth on FT responses across Québec, a Canadian province ~ 2.5 times larger than France. Our findings show significant and complex responses of landscape FT to compound changes in temperature and snow depth. We note a vivid spatial divide between northern and southern regions and point to the asymmetric and nonlinear nature of the FT response. In general, the response of FT characteristics is amplified under compound warming compared to cooling conditions. In addition, FT responses include nonlinearity, meaning that compounding changes in temperature and snow depth have more severe impacts compared to the cumulative response of each individually. These asymmetric and nonlinear responses have important implications for the future environment and socio-economic management in a thawing Québec and highlight the complexity of landscape responses to climatic changes in cold regions.

show abstract

The Compound Impacts of Changing Temperature and Snow Cover on Freeze and Thaw Patterns across Québec

Cited by 3 publications

References 20 publications

Cold region data accessibility portal for Québec (CRDAP-QC): An integrated, multi-variable and multi-scale data repository for studying cold-region hydrological processes in Québec

Cold region data accessibility portal for Québec (CRDAP-QC): An integrated, multi-variable and multi-scale data repository for studying cold-region hydrological processes in Québec

Advances in understanding the cooling rates and bending of needle ice: Photogrammetric and thermal observations leading to the spatial distribution of needle ice creep

Compound changes in temperature and snow depth lead to asymmetric and nonlinear responses in landscape freeze–thaw

Contact Info

Product

Resources

About