Map showing inventory and regional susceptibility for Holocene debris flows, and related fast-moving landslides in the conterminous United States

2000 ◽  
Keyword(s):  
United States ◽  
Fast Moving ◽  
Debris Flows

Instrumental Internationalism: The American Origins of the United Nations, 1940–3

2019 ◽  
Vol 54 (2) ◽  
pp. 265-283 ◽  
Author(s):  
Stephen Wertheim
Keyword(s):  
United States ◽  
United Nations ◽  
Fast Moving ◽  
The United States ◽  
Political Organization ◽  
Power Politics ◽  
American Power ◽  
The World ◽  
The United Nations ◽  
Indispensable Tool

Why did the United States want to create the United Nations Organization, or any international political organization with universal membership? This question has received superficial historiographical attention, despite ample scrutiny of the conferences that directly established the UN in 1944 and 1945. The answer lies earlier in the war, from 1940 to 1942, when, under the pressure of fast-moving events, American officials and intellectuals decided their country must not only enter the war but also lead the world long afterwards. International political organization gained popularity – first among unofficial postwar planners in 1941 and then among State Department planners in 1942 – because it appeared to be an indispensable tool for implementing postwar US world leadership, for projecting and in no way constraining American power. US officials believed the new organization would legitimate world leadership in the eyes of the American public by symbolizing the culmination of prior internationalist efforts to end power politics, even as they based the design of the UN on a thoroughgoing critique of the League, precisely for assuming that power politics could be transcended.

Minimizing economic impacts from post-fire debris flows in the western United States

2016 ◽  
Vol 83 (1) ◽  
pp. 149-176 ◽  
Author(s):  
Kevin McCoy ◽  
Vitaliy Krasko ◽  
Paul Santi ◽  
Daniel Kaffine ◽  
Steffen Rebennack
Keyword(s):  
United States ◽  
Debris Flows ◽  
Economic Impacts ◽  
Western United States ◽  
Fire Debris

Introduction

Paper Trails ◽  
2021 ◽  
pp. 1-15
Author(s):  
Cameron Blevins
Keyword(s):  
United States ◽  
Spatial Analysis ◽  
Fast Moving ◽  
Narrative Strategies ◽  
Digital History ◽  
Post Offices ◽  
The Us ◽  
Postal Network ◽  
American State

How did the American state consolidate its power over the vast and remote territory of the western United States? This chapter orients readers to the period of western expansion spanning the 1860s to the early 1900s and the crucial, often unseen, role of the US Post within this project. It explains the book’s methodology of using a dataset of more than one hundred thousand post offices to map the spread of the western postal network, part of a larger approach of digital history. This spatial analysis leads to four findings about the US Post and its status as a “gossamer network”: that it was big, spatially expansive, fast moving, and ephemeral. The chapter then introduces the concept of the agency model, a new organizational framework for understanding the American state. It concludes with an overview of the book’s chapter structure, major themes, and narrative strategies.

The Timing of Susceptibility to Post-Fire Debris Flows in the Western United States

2015 ◽  
Vol 21 (4) ◽  
pp. 277-292 ◽  
Author(s):  
JEROME V. DeGRAFF ◽  
SUSAN H. CANNON ◽  
JOSEPH E. GARTNER
Keyword(s):  
United States ◽  
Debris Flows ◽  
Western United States ◽  
Fire Debris

Predicting the probability and volume of postwildfire debris flows in the intermountain western United States

2009 ◽  
Vol 122 (1-2) ◽  
pp. 127-144 ◽  
Author(s):  
S. H. Cannon ◽  
J. E. Gartner ◽  
M. G. Rupert ◽  
J. A. Michael ◽  
A. H. Rea ◽  
...  
Keyword(s):  
United States ◽  
Debris Flows ◽  
Western United States

Chapter 5 Debris flows

2020 ◽  
Vol 29 (1) ◽  
pp. 163-185 ◽  
Author(s):  
M. G. Winter
Keyword(s):  
Debris Flow ◽  
Fast Moving ◽  
Debris Flows ◽  
Educational Opportunities ◽  
Mountainous Areas ◽  
Remote Communities ◽  
Strategic Approach ◽  
Hazard And Risk ◽  
The Uk ◽  
Debris Flow Hazard

AbstractFast-moving, rainfall-induced debris-flow events are relatively common in the mountainous areas of the UK. Their impacts are largely, although by no means exclusively, economic and social. They often sever (or delay) access to and from relatively remote communities for services and markets for goods; employment, health and educational opportunities; and social activities. Specific forms of economic impact are described and their extent is defined by the vulnerability shadow. The mechanisms of rainfall-induced, fast-moving debris flows are considered to bridge between slow mass movements and flood phenomena. The occurrence of debris flows is largely restricted to mountainous areas and a series of case studies from Scotland is briefly described. Hazard and risk assessment are briefly considered and a strategic approach to risk reduction is described. The latter allows a clear focus on that overall goal before concentrating on the desired outcomes and the generic approach to achieving those outcomes. The effects of climate change on debris-flow hazard and risk are also considered and it is concluded that, in Scotland, increases in debris-flow frequency and/or magnitude are most likely and that increases in the risks associated with debris flows are also likely.

scholarly journals Evaluation of predictive models for post-fire debris flow occurrence in the western United States

2018 ◽  
Vol 18 (9) ◽  
pp. 2331-2343 ◽  
Author(s):  
Efthymios I. Nikolopoulos ◽  
Elisa Destro ◽  
Md Abul Ehsan Bhuiyan ◽  
Marco Borga ◽  
Emmanouil N. Anagnostou
Keyword(s):  
United States ◽  
Random Forest ◽  
Debris Flow ◽  
Predictive Models ◽  
Debris Flows ◽  
The United States ◽  
Western United States ◽  
Economic Losses ◽  
United States Geological Survey ◽  
Fire Debris

Abstract. Rainfall-induced debris flows in recently burned mountainous areas cause significant economic losses and human casualties. Currently, prediction of post-fire debris flows is widely based on the use of power-law thresholds and logistic regression models. While these procedures have served with certain success in existing operational warning systems, in this study we investigate the potential to improve the efficiency of current predictive models with machine-learning approaches. Specifically, the performance of a predictive model based on the random forest algorithm is compared with current techniques for the prediction of post-fire debris flow occurrence in the western United States. The analysis is based on a database of post-fire debris flows recently published by the United States Geological Survey. Results show that predictive models based on random forest exhibit systematic and considerably improved performance with respect to the other models examined. In addition, the random-forest-based models demonstrated improvement in performance with increasing training sample size, indicating a clear advantage regarding their ability to successfully assimilate new information. Complexity, in terms of variables required for developing the predictive models, is deemed important but the choice of model used is shown to have a greater impact on the overall performance.

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