Recent research on the nature, origin and climatic relations of blocky and stratified slope deposits

2002 ◽  
Vol 26 (4) ◽  
pp. 551-575 ◽  
Author(s):  
Henk van Steijn ◽  
Jan Boelhouwers ◽  
Stuart Harris ◽  
Bernard Hétu
Keyword(s):  
Extreme Events ◽  
Debris Flows ◽  
Cold Climate ◽  
Climate Extreme ◽  
Aeolian Transport ◽  
New Developments ◽  
Slope Deposits ◽  
Mass Transfers ◽  
Selection Of ◽  
Process Material

A selection of subaerial slope processes is discussed together with the morphological and sedimentological traces that are left by the processes. Emphasis is on mass transfers related to (coarse) blocky slopes and to scree accumulations, either on steep or on gentle slopes. New developments in the interpretation of more or less clearly stratified slope deposits are discussed in the light of the findings of research focusing on present-day process-form (process-material) relationships. The question of the climatic (and, more specifically, the periglacial) significance of the different processes and their morpho-sedimentary expression is a returning theme in this paper. It is concluded that many deposits are formed by azonal processes, although their activity (in terms of magnitude-frequency combinations) is often relatively high under periglacial conditions. Some of the deposits point to (cold-climate) extreme events. This especially is the case for frost-coated clast flows, aeolian transport of large platy clasts, and to a lesser extent debris flows.

scholarly journals Potential distributions of invasive vertebrates in the Iberian Peninsula under projected changes in climate extreme events

2021 ◽  
Author(s):  
Rocío A. Baquero ◽  
A. Márcia Barbosa ◽  
Daniel Ayllón ◽  
Carlos Guerra ◽  
Enrique Sánchez ◽  
...  
Keyword(s):  
Iberian Peninsula ◽  
Extreme Events ◽  
Climate Extreme ◽  
Projected Changes

Current Design Activities on British Railways

1969 ◽  
Vol 184 (4) ◽  
pp. 5-14
Author(s):  
J. F. Thring
Keyword(s):  
High Speed ◽  
Design Review ◽  
New Developments ◽  
Maintenance Costs ◽  
Current Design ◽  
Design Activities ◽  
Selection Of ◽  
Freight Vehicles

With the identification of profitable freight areas and the selection of growth traffics for development has come the need to review in detail the running gear and, in particular, the suspensions of both 4-wheeled and bogie vehicles. This design review has been aimed at ensuring a high-speed capability for all new freight vehicles coupled with safety at all times, low maintenance costs, and maximum availability. After reviewing traditional suspensions, in wide use, with reference to their known strengths and weaknesses, the paper discusses in some detail the philosophy now being applied in B.R. design offices to new freight running gear, for both 4-wheeled and bogie vehicles, to ensure satisfactory achievement of technical objectives. Examples of new developments are provided, together with comments on progress to date.

scholarly journals REVIEW OF OPEN SOURCE QGIS FORESTRY PLUGINS

2021 ◽  
Vol 4 (2) ◽  
pp. 1-11
Author(s):  
E. S. Podolskaia ◽  
Keyword(s):  
Open Source ◽  
Forest Fires ◽  
Forest Resources ◽  
Future Research ◽  
Forest Industry ◽  
New Developments ◽  
Forest Fire Management ◽  
Gis Tools ◽  
Spatial Coverage ◽  
Selection Of

Forest industry today has some experience of using Open Source-programs. The article describes the Open Source QGIS plugins to solve the forestry challenges for the forest fire management and forest resources in scientific and applied research. Undertaken analysis will simplify selection of tools for a forest geoinformation project in Desktop and Web versions. A general brief description of modern plugins in QGIS (version 3.18.1) is given, and forestry plugins are characterized. An analysis of external QGIS plugins for working with forest resources and forest fires showed the heterogeneity of research, which has not identified any trends yet. Development of plugins with available data as map services for territories of different spatial coverage may be an option for the future research, while the ability to access archived data is important for the forest industry. The niche of thematic forest tasks in the modern QGIS plugin repository continues to be quite narrow. Transport and environmental applications implemented in GIS tools are more numerous and can solve some tasks of a forest project. Such review of plugins’ functionality should be done on a regular basis, following new developments and new versions of QGIS software.

Age and significance of slope deposits, Black Mountain, Canberra

Soil Research ◽  
1973 ◽  
Vol 11 (1) ◽  
pp. 13 ◽  
Author(s):  
AB Costin ◽  
HA Polach
Keyword(s):  
Snow Cover ◽  
Cold Climate ◽  
Tree Cover ◽  
Soil Conditions ◽  
Climate Conditions ◽  
Slope Deposits ◽  
The Mean ◽  
Carbonized Wood ◽  
Black Mountain ◽  
Lake George

Extensive slope deposits are described from Black Mountain, Canberra, with particular reference to a profile exposed in an excavation at 590 m on the lower eastern slopes of the mountain. Buried organomineral soil materials near the base of the slope deposits contain fragments of carbonized wood with an average age of 27,800 (+2500, - 1900) years B.P. This age is not significantly different from the mean age of 26,790 � 810 years B.P. for carbonized wood in slope deposits near Lake George, and is close to the mean age of 31,500 � 1000 years B.P. for slope deposits above 1000 m in the Snowy Mountains. A method for comparing the results of carbon-14 determinations is described. The Snowy Mountains deposits indicated a periglacial climate with mean annual temperatures at least 8-10�C lower than at present. On the basis of their similar appearance and age, it is suggested that the Black Mountain deposits were also formed under cold-climate conditions. If this were so, the synchronous slope deposits near Lake George (and river terraces and slope deposits in an upland tributary of the Shoalhaven River) must also have developed during a colder climate. The climatic and associated soil conditions considered necessary for the formation of periglacial deposits at Black Mountain are discussed. Estimates of the lowering in temperature (compared with present-day temperature) which would have been involved vary from a crude estimate of about 14�C (annual) with relatively high precipitations and prolonged snow cover, to a more conservative estimate of 9�C (winter), 11�C (summer), and 10�C (annual) if the winter precipitations and snow cover were light. Even under the latter conditions, tree cover would have been minimal or absent from the tableland environment.

scholarly journals Machine Learning Predictors of Extreme Events Occurring in Complex Dynamical Systems

Entropy ◽  
2019 ◽  
Vol 21 (10) ◽  
pp. 925 ◽  
Author(s):  
Stephen Guth ◽  
Themistoklis P. Sapsis
Keyword(s):  
Time Series ◽  
Extreme Events ◽  
Extreme Event ◽  
Binary Classification ◽  
Selection Criterion ◽  
Area Under The Curve ◽  
Wave Model ◽  
Training Dataset ◽  
Ocean Engineering ◽  
Selection Of

The ability to characterize and predict extreme events is a vital topic in fields ranging from finance to ocean engineering. Typically, the most-extreme events are also the most-rare, and it is this property that makes data collection and direct simulation challenging. We consider the problem of deriving optimal predictors of extremes directly from data characterizing a complex system, by formulating the problem in the context of binary classification. Specifically, we assume that a training dataset consists of: (i) indicator time series specifying on whether or not an extreme event occurs; and (ii) observables time series, which are employed to formulate efficient predictors. We employ and assess standard binary classification criteria for the selection of optimal predictors, such as total and balanced error and area under the curve, in the context of extreme event prediction. For physical systems for which there is sufficient separation between the extreme and regular events, i.e., extremes are distinguishably larger compared with regular events, we prove the existence of optimal extreme event thresholds that lead to efficient predictors. Moreover, motivated by the special character of extreme events, i.e., the very low rate of occurrence, we formulate a new objective function for the selection of predictors. This objective is constructed from the same principles as receiver operating characteristic curves, and exhibits a geometric connection to the regime separation property. We demonstrate the application of the new selection criterion to the advance prediction of intermittent extreme events in two challenging complex systems: the Majda–McLaughlin–Tabak model, a 1D nonlinear, dispersive wave model, and the 2D Kolmogorov flow model, which exhibits extreme dissipation events.

Music Therapy Interventions in Palliative Care: A Systematic Review

2020 ◽  
pp. 082585972095780
Author(s):  
Miren Pérez-Eizaguirre ◽  
Esperanza Vergara-Moragues
Keyword(s):  
Systematic Review ◽  
Palliative Care ◽  
Music Therapy ◽  
Primary Source ◽  
The Body ◽  
Fundamental Aspect ◽  
Kappa Index ◽  
New Developments ◽  
Therapy Sessions ◽  
Selection Of

Background: Palliative care is an interdisciplinary medical approach for people with illnesses that are unresponsive to curative treatment. Music therapy has been gaining ground in this field since the 1970s, with a not-always-standardized range of interventions and musical techniques. Objective: The purpose of this systematic review is to analyze interventions with music therapy and new developments in this area in the field of palliative care. Methods: The primary source of data for this review was the online database Web of Science (WOS). We also used other databases such as Medline and Scopus. A systematic search was performed of the past 6 years following the PRISMA criteria. Results: From a selection of 310 documents, we reviewed 54 completed articles and included 19 studies in the review. The percentage of agreement in the selection of articles was 87.5% and the Cohen Kappa index of inter-rater reliability was 0.727. In 5 of the articles, the musical interventions were not specified. However, in the remaining 14 they were, including new developments such as use of the monochord and the body tambura, and adaptation of the RBL (Rhythm, Breath & Lullaby) method. Conclusions: There has been notable improvement in the specification of musical interventions during music therapy sessions in palliative care. However, articles in this field need to describe how these techniques are carried out and any new developments. All this without forgetting that the patient’s musical preferences are a fundamental aspect when performing music therapy sessions.

scholarly journals CO2 Sensitivity of Extreme Climate Events in the Western United States

2006 ◽  
Vol 10 (15) ◽  
pp. 1-17 ◽  
Author(s):  
Jason L. Bell ◽  
Lisa C. Sloan
Keyword(s):  
United States ◽  
Extreme Events ◽  
Climate Model ◽  
Heat Waves ◽  
Regional Climate ◽  
Western United States ◽  
Climate Extreme ◽  
Climate Model Simulations ◽  
Atmospheric Co2 Concentrations ◽  
High Elevations

Abstract Based upon trends in observed climate, extreme events are thought to be increasing in frequency and/or magnitude. This change in extreme events is attributed to enhancement of the hydrologic cycle caused by increased greenhouse gas concentrations. Results are presented of relatively long (50 yr) regional climate model simulations of the western United States examining the sensitivity of climate and extreme events to a doubling of preindustrial atmospheric CO2 concentrations. These results indicate a shift in the temperature distribution, resulting in fewer cold days and more hot days; the largest changes occur at high elevations. The rainfall distribution is also affected; total rain increases as a result of increases in rainfall during the spring season and at higher elevations. The risk of flooding is generally increased, as is the severity of droughts and heat waves. These results, combined with results of decreased snowpack and increased evaporation, could further stress the water supply of the western United States.

scholarly journals Evaluation of Rainfall-Triggered Debris Flows under the Impact of Extreme Events: A Chenyulan Watershed Case Study, Taiwan

Water ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2201
Author(s):  
Jinn-Chyi Chen ◽  
Wen-Shun Huang
Keyword(s):  
Debris Flow ◽  
Extreme Events ◽  
Debris Flows ◽  
Extreme Rainfall ◽  
Extreme Rainfall Event ◽  
Extreme Rainfall Events ◽  
Hourly Rainfall ◽  
Central Taiwan ◽  
The Impact

This study examined the conditions that lead to debris flows, and their association with the rainfall return period (T) and the probability of debris flow occurrence (P) in the Chenyulan watershed, central Taiwan. Several extreme events have occurred in the Chenyulan watershed in the past, including the Chi-Chi earthquake and extreme rainfall events. The T for three rainfall indexes (i.e., the maximum hourly rainfall depth (Im), the maximum 24-h rainfall amount (Rd), and RI (RI = Im× Rd)) were analyzed, and the T associated with the triggering of debris flows is presented. The P–T relationship can be determined using three indexes, Im, Rd, and RI; how it is affected and unaffected by extreme events was developed. Models for evaluating P using the three rainfall indexes were proposed and used to evaluate P between 2009 and 2020 (i.e., after the extreme rainfall event of Typhoon Morakot in 2009). The results of this study showed that the P‒T relationship, using the RI or Rd index, was reasonable for predicting the probability of debris flow occurrence.

NEW LIFE IN THE MODERN CULTURAL HISTORY OF DEATH

2018 ◽  
Vol 62 (3) ◽  
pp. 833-852
Author(s):  
HANNAH MALONE
Keyword(s):  
Cultural History ◽  
Intellectual History ◽  
Recent Literature ◽  
Public And Private ◽  
New Developments ◽  
Recent Scholarship ◽  
History Of ◽  
The Individual ◽  
Critical Overview ◽  
Selection Of

AbstractThis essay presents a critical overview of recent literature in English on the modern cultural history of death. In order to locate new developments, it charts the evolution of the field from the 1970s until today and distinguishes between French and Anglophone strands in the historiography. A selection of studies published between 2005 and 2015 exemplifies a revival in recent scholarship that hangs on four main innovations: the abandonment of grand narratives of modernization and secularization; an interdisciplinary integration of political, cultural, and intellectual history; greater attention to the individual; and the expansion of the field beyond Europe and North America. Thus, today, the history of death is both local and global, public and private, personal and universal.

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