Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Tjalling de Haas"'
Autor:
Lonneke Roelofs, Susan J. Conway, Tjalling de Haas, Colin Dundas, Stephen R. Lewis, Jim McElwaine, Kelly Pasquon, Jan Raack, Matthew Sylvest, Manish R. Patel
Publikováno v:
Communications Earth & Environment, Vol 5, Iss 1, Pp 1-9 (2024)
Abstract Martian gullies resemble water-carved gullies on Earth, yet their present-day activity cannot be explained by water-driven processes. The sublimation of CO2 has been proposed as an alternative driver for sediment transport, but how this mech
Externí odkaz:
https://doaj.org/article/413caba60fb94808a7a5d4b6d95f7050
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 5, Pp n/a-n/a (2024)
Abstract Pore‐fluid pressure (PP) plays an important role in bed erosion, but the mechanisms that control PP evolution and the resulting feedbacks on flow dynamics are unclear. Here, we develop a general formulation, allowing quantification of the
Externí odkaz:
https://doaj.org/article/b2b50e5423f64d32b1981d8a45cdfbe1
Publikováno v:
Landslides. 20:913-932
Landslides are destructive natural hazards that cause substantial loss of life and impact on natural and built environments. Landslide frequencies are important inputs for hazard assessments. However, dating landslides in remote areas is often challe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::558de91c0c357b7a6d64392dba433c88
https://doi.org/10.1007/s10346-022-02012-4
https://doi.org/10.1007/s10346-022-02012-4
Autor:
Amanda Åberg, Jordan Aaron, Jacob Hirschberg, Tjalling de Haas, Brian McArdell, James Kirchner
Debris flows are a highly hazardous landslide type, and their impact forces, peak discharges and runout distances are dependent on the flow velocity. Knowledge of flow velocities is therefore often required for hazard planning and mitigation, as well
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e0fad89d02b6de16e746ec94174665e
https://doi.org/10.5194/egusphere-egu23-12134
https://doi.org/10.5194/egusphere-egu23-12134
Autor:
Tjalling de Haas, Brian McArdell, Wiebe Nijland, Amanda Åberg, Jacob Hirschberg, Pierre Huguenin
Debris flows are water-laden masses of soil and rock, which are common geological hazards in mountainous regions worldwide. They can grow greatly in size and hazardous potential by eroding bed and bank materials. However, erosion mechanisms are poorl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00c67db85bd7990aaa498c443cc13bf1
https://doi.org/10.5194/egusphere-egu23-1454
https://doi.org/10.5194/egusphere-egu23-1454
Martian gullies are alcove-channel-fan systems which have been hypothesized to be formed by the action of liquid water and brines, the effects of sublimating CO2 ice or a combination of these processes. Recent activity and new flow deposits in these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e84b82e60ffe1b9a2748d37f9d4040c2
https://doi.org/10.5194/egusphere-egu23-2626
https://doi.org/10.5194/egusphere-egu23-2626
Debris flows and floods and flash floods pose hazards to the densely populated areas of High Mountain Asia (HMA). The continuous decline in the cryosphere across the region such as glacier mass loss and permafrost thaw leads to exposure of the uncons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6b846e28003c55e76e34addd2ffa2a6
https://doi.org/10.5194/egusphere-egu23-9308
https://doi.org/10.5194/egusphere-egu23-9308
Autor:
Tjalling de Haas, Lonneke Roelofs, Susan Conway, Jim McElwaine, Jon Merrison, Manish Patel, Matthew Sylvest
Martian gullies are kilometre-scale landforms consisting of an alcove, channel and depositional fan. They are among the youngest landforms that may have formed by liquid water and are active today. Understanding their formation is thus critical for r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d20280166c9faebccddd0206827d0ae3
https://doi.org/10.5194/egusphere-egu23-1451
https://doi.org/10.5194/egusphere-egu23-1451
Publikováno v:
Zheng, H, Shi, Z, Kaitna, R, Zhao, F, de Haas, T & Hanley, K J 2023, ' Control mechanisms of pore-pressure dissipation in debris flows ', Engineering Geology, vol. 317, 107076 . https://doi.org/10.1016/j.enggeo.2023.107076
Debris flows are typically saturated mixtures of debris grains and interstitial slurry consisting of water and clay. Pore pressure in slurry plays a crucial role in the characteristic behavior and runout of debris flows. However, the mechanisms that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b67e18a7fc2551330ceb521a76a0e3c2
https://hdl.handle.net/20.500.11820/c98a9358-5df8-442d-90df-664fa717f316
https://hdl.handle.net/20.500.11820/c98a9358-5df8-442d-90df-664fa717f316
A solid physical understanding of debris-flow erosion is needed for both hazard prediction and understanding long-term landscape evolution. However, the processes and forces involved in erosion by debris flows and especially how the erodible surface
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afdfb6a2bdd6fe5fc87640f9e4d2fc09
https://doi.org/10.22541/essoar.167690067.73647735/v1
https://doi.org/10.22541/essoar.167690067.73647735/v1