Results 211 to 220 of about 2,257,902 (405)
The high mobility of dense pyroclastic density currents (PDCs) is commonly attributed to high gas pore pressures. However, the influence of spatial and temporal variations in pore pressure within PDCs has yet to be investigated. Theory suggests that variability in the fluidisation and aeration of a current will have a significant control on PDC flow ...
Gregory Smith +3 more
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Journal of Quaternary Science, EarlyView.ABSTRACT Understanding soil erosion, its history and links to potential drivers such as land use (particularly agriculture and deforestation), different cultural perspectives and climate change are crucial for the development of effective management and conservation strategies.
Jahzeel Aguilera Lara, SARAH E. Metcalfe
wiley +1 more source
Western U.S. multistate research project on “water movement in soils”: A retrospective
Vadose Zone Journal, Volume 22, Issue 1, January/February 2023., 2023 Abstract To prioritize agricultural research in the United States and to improve its competitiveness globally, Multistate Research Funds (MRFs) were set aside under the Research and Marketing Act of 1946. To implement the act, Agricultural Experiment Station (AES) Directors in the western United States met regularly to evaluate, fund, and review ...
Jan W. Hopmans +2 more
wiley +1 more source
Pyroclastic density currents are a life-threatening volcanic hazard. Our understanding and hazard assessments of these flows primarily rely on interpretations of their deposits. The occurrence of stratified layers, cross-stratification, and dune bedforms in these deposits has been assumed as indicative of dilute, turbulent, flows causing traction ...
Gregory Smith +7 more
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Journal of Quaternary Science, EarlyView.ABSTRACT In Ireland, the Nahanagan Stadial (NS) was characterised by cirque glacier, plateau icefield and mountain ice cap expansion and is named after the cirque glacier type‐site of Lough Nahanagan in the Wicklow Mountains. This period is broadly equivalent to the Younger Dryas Stadial and Greenland Stadial‐1 (GS‐1: ~12.9–11.7 ka).
Lauren Knight +6 more
wiley +1 more source
Behavioral responses of Canada geese to winter harassment in the context of human‐wildlife conflicts
Wildlife Society Bulletin, Volume 46, Issue 5, December 2022., 2022 Winter harassment of Canada geese (Branta canadensis) in urban parks did not have significant effects on the use of urban greenspaces or behavioral time budgets. Instead, mean daily temperature and snow cover were the primary driver of greenspace use and behavioral time budgets.
Ryan J. Askren +10 more
wiley +1 more source
Geologic map of the Bristol Head quadrangle, Mineral and Hinsdale Counties, Colorado [PDF]
, 1967 Thomas A. Steven
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Volcanogenic tsunamis are one of the deadliest volcanic phenomena. Understanding their triggering processes and mitigating their effect remains a major challenge. On 22 December 2018, flank failure of the Anak Krakatau volcano in Indonesia generated a tsunami which killed more than 400 people.
Rebecca Williams +2 more
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Journal of Quaternary Science, EarlyView.ABSTRACT This paper presents evidence of glacier surging in the British landform record. We use new high‐resolution multibeam‐echosounder bathymetry data to map the submarine geomorphology of a former tidewater glacier that drained the Skye Icefield, NW Scotland, during the Younger Dryas Stadial (Greenland Stadial 1) ca. 12.9–11.7 ka.
Tom Bradwell, Douglas I. Benn
wiley +1 more source
Earth and Space Science, Volume 9, Issue 12, December 2022., 2022 Abstract A 6.0‐magnitude (Mw) earthquake was reported to have occurred in Jiashi County, Xinjiang at 21:27 on 19 January 2020, Beijing time (13:27 UTC). This study applied a stochastic finite‐fault approach based on the dynamic corner frequency (EXSIM) to simulate 23 near‐field stations within a distance of 120 km from the epicenter.
Chong Wang +5 more
wiley +1 more source