Search Results - "Fortier, Daniel"

Deep Yedoma permafrost: A synthesis of depositional characteristics and carbon vulnerability by Strauss, Jens, Schirrmeister, Lutz, Grosse, Guido, Fortier, Daniel, Hugelius, Gustaf, Knoblauch, Christian, Romanovsky, Vladimir, Schädel, Christina, Schneider von Deimling, Thomas, Schuur, Edward A.G., Shmelev, Denis, Ulrich, Mathias, Veremeeva, Alexandra

“…Permafrost is a distinct feature of the terrestrial Arctic and is vulnerable to climate warming. Permafrost degrades in different ways, including deepening of…”
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Effects of meteorology and soil moisture on the spatio-temporal evolution of the depth hoar layer in the polar desert snowpack by Davesne, Gautier, Domine, Florent, Fortier, Daniel

“…In polar deserts, depth hoar (hereinafter: DH) growth is not systematic unlike on tundra and this is critical for snowpack properties. Here, we address the…”
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Mass-balance and ablation processes of a perennial polar ice patch on the northern coast of Ellesmere Island by Davesne, Gautier, Fortier, Daniel, Domine, Florent, Kinnard, Christophe

“…Abstract Ice patches have implications for landscape and ecosystem dynamics in polar deserts, however, the understanding of the driving factors that control…”
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Effects of thermo-erosion gullying on hydrologic flow networks, discharge and soil loss by Godin, Etienne, Fortier, Daniel, Coulombe, Stéphanie

“…Thermo-erosion gullies in continuous permafrost regions where ice-wedge polygons are widespread contribute and change the drainage of periglacial landscapes…”
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Seasonal patterns in greenhouse gas emissions from lakes and ponds in a High Arctic polygonal landscape by Prėskienis, Vilmantas, Laurion, Isabelle, Bouchard, Frédéric, Douglas, Peter M. J., Billett, Michael F., Fortier, Daniel, Xu, Xiaomei

“…Lakes and ponds can be hotspots for CO2 and CH4 emissions, but Arctic studies remain scarce. Here we present diffusive and ebullition fluxes collected over…”
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Permafrost degradation and soil erosion as drivers of greenhouse gas emissions from tundra ponds by Prėskienis, Vilmantas, Fortier, Daniel, Douglas, Peter M J, Rautio, Milla, Laurion, Isabelle

“…Abstract Climate change poses a serious threat to permafrost integrity, with expected warmer winters and increased precipitation, both raising permafrost…”
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Rapid disappearance of perennial ice on Canada's most northern lake by Paquette, Michel, Fortier, Daniel, Mueller, Derek R., Sarrazin, Denis, Vincent, Warwick F.

“…Field records, aerial photographs, and satellite imagery show that the perennial ice cover on Ward Hunt Lake at Canada's northern coast experienced rapid…”
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The palate and choanae structure of the Susisuchus anatoceps (Crocodyliformes, Eusuchia): phylogenetic implications by Leite, Karla J, Fortier, Daniel C

“…Crocodyliformes is a group with a broad fossil record, in which several morphological changes have been documented. Among known transformations the most iconic…”
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Circum-Arctic Map of the Yedoma Permafrost Domain by Strauss, Jens, Laboor, Sebastian, Schirrmeister, Lutz, Fedorov, Alexander N., Fortier, Daniel, Froese, Duane, Fuchs, Matthias, Günther, Frank, Grigoriev, Mikhail, Harden, Jennifer, Hugelius, Gustaf, Jongejans, Loeka L., Kanevskiy, Mikhail, Kholodov, Alexander, Kunitsky, Viktor, Kraev, Gleb, Lozhkin, Anatoly, Rivkina, Elizaveta, Shur, Yuri, Siegert, Christine, Spektor, Valentin, Streletskaya, Irina, Ulrich, Mathias, Vartanyan, Sergey, Veremeeva, Alexandra, Anthony, Katey Walter, Wetterich, Sebastian, Zimov, Nikita, Grosse, Guido

“…Ice-rich permafrost in the circum-Arctic and sub-Arctic (hereafter pan-Arctic), such as late Pleistocene Yedoma, are especially prone to degradation due to…”
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Observation of rapid drainage system development by thermal erosion of ice wedges on Bylot Island, Canadian Arctic Archipelago by Fortier, Daniel, Allard, Michel, Shur, Yuri

“…Rapid development of a new drainage system was observed on Bylot Island. A 750‐m long gully system was eroded in four years. The process was initiated by the…”
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Nonlinear thermal and moisture response of ice-wedge polygons to permafrost disturbance increases heterogeneity of high Arctic wetland by Godin, Etienne, Fortier, Daniel, Lévesque, Esther

“…Low-center polygonal terrains with gentle sloping surfaces and lowlands in the high Arctic have a potential to retain water in the lower central portion of…”
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Low vulnerability of Arctic fox dens to climate change-related geohazards on Bylot Island, Nunavut, Canada by Lapierre Poulin, Florence, Fortier, Daniel, Berteaux, Dominique

“…Climate change increases the risk of severe alterations to essential wildlife habitats. The Arctic fox (Vulpes lagopus (Linnaeus, 1758)) uses dens as shelters…”
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Water tracks in the High Arctic: a hydrological network dominated by rapid subsurface flow through patterned ground by Paquette, Michel, Fortier, Daniel, Vincent, Warwick F.

“…Water tracks play a major role in the headwater basin hydrology of permafrost landscapes in Alaska and Antarctica, but less is known about these features in…”
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Yedoma Permafrost Genesis: Over 150 Years of Mystery and Controversy by Shur, Yuri, Fortier, Daniel, Jorgenson, M. Torre, Kanevskiy, Mikhail, Schirrmeister, Lutz, Strauss, Jens, Vasiliev, Alexander, Ward Jones, Melissa

“…Since the discovery of frozen megafauna carcasses in Northern Siberia and Alaska in the early 1800s, the Yedoma phenomenon has attracted many Arctic explorers…”
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New insights on Prestosuchus chiniquensis Huene, 1942 (Pseudosuchia, Loricata) based on new specimens from the "Tree Sanga" Outcrop, Chiniquá Region, Rio Grande do Sul, Brazil by Lacerda, Marcel B, Mastrantonio, Bianca M, Fortier, Daniel C, Schultz, Cesar L

“…The 'rauisuchians' are a group of Triassic pseudosuchian archosaurs that displayed a near global distribution. Their problematic taxonomic resolution comes…”
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Yedoma Cryostratigraphy of Recently Excavated Sections of the CRREL Permafrost Tunnel Near Fairbanks, Alaska by Kanevskiy, Mikhail, Shur, Yuri, Bigelow, Nancy H., Bjella, Kevin L., Douglas, Thomas A., Fortier, Daniel, Jones, Benjamin M., Jorgenson, M. Torre

“…Recent excavation in the new CRREL Permafrost Tunnel in Fox, Alaska provides a unique opportunity to study properties of Yedoma — late Pleistocene ice- and…”
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A New Specimen of Caiman brevirostris (Crocodylia, Alligatoridae) from the Late Miocene of Brazil by Fortier, Daniel C, Souza-Filho, Jonas P. De, Guilherme, Edson, Maciente, Andréa A. R, Schultz, Cesar L

“…Caiman brevirostris was described based on the basis of late Miocene materials that included a rostral fragment and a right mandibular ramus, but photographs…”
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Spondarthritis in the triassic by Cisneros, Juan Carlos, Gomes Cabral, Uiara, de Beer, Frikkie, Damiani, Ross, Costa Fortier, Daniel

“…The evidence of several forms of arthritis has been well documented in the fossil record. However, for pre-Cenozoic vertebrates, especially regarding reptiles,…”
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Remote sensing evaluation of High Arctic wetland depletion following permafrost disturbance by thermo-erosion gullying processes by Perreault, Naïm, Lévesque, Esther, Fortier, Daniel, Gratton, Denis, Lamarque, Laurent J.

“…Northern wetlands and their productive tundra vegetation are of prime importance for Arctic wildlife by providing high-quality forage and breeding habitats…”
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Syngenetic dynamic of permafrost of a polar desert solifluction lobe, Ward Hunt Island, Nunavut by Verpaelst, Manuel, Fortier, Daniel, Kanevskiy, Mikhail, Paquette, Michel, Shur, Yuri

“…Repeated freeze–thaw cycles on slopes trigger sorting and solifluction mass movements, while subsequent displacement of material modifies the geomorphology of…”
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