Sustaining United States Reservoir Storage Capacity: Need for a New Paradigm

2021 ◽  
pp. 126686
Author(s):  
Timothy J. Randle ◽  
Gregory L. Morris ◽  
Desirée D. Tullos ◽  
Frank H. Weirich ◽  
G. Mathias Kondolf ◽  
...  
Keyword(s):  
United States ◽  
Storage Capacity ◽  
New Paradigm ◽  
Reservoir Storage

scholarly journals Risk and Impact Assessment of Dams in the Contiguous United States Using the 2018 National Inventory of Dams Database

Water ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1066
Author(s):  
Junho Song ◽  
Madden Sciubba ◽  
Jonghun Kam
Keyword(s):  
United States ◽  
Storage Capacity ◽  
The United States ◽  
Economic Benefits ◽  
Spatiotemporal Patterns ◽  
Dam Failure ◽  
Environmental Damage ◽  
Hazard Potential ◽  
Significant Potential ◽  
National Inventory

Aging water infrastructure in the United States (U.S.) is a growing concern. In the U.S., over 90,000 dams were registered in the 2018 National Inventory of Dams (NID) database, and their average age was 57 years old. Here, we aim to assess spatiotemporal patterns of the growth of artificial water storage of the existing dams and their hazard potential and potential economic benefit. In this study, we use more than 70,000 NID-registered dams to assess the cumulative hazard potential of dam failure in terms of the total number and the cumulative maximum storage of dams over the 12 National Weather Service River Forecast Center (RFC) regions. In addition, we also estimate potential economic benefits of the existing dams based on their cumulative storage capacity. Results show that the ratios of the cumulative storage capacity to the long-term averaged precipitation range from 8% (Mid-Atlantic) to 50% (Colorado), indicating the significant anthropogenic contribution to the land surface water budget. We also find that the cumulative storage capacity of the dams with high (probable loss of human life is if the dam fails) and significant (potential economic loss and environmental damage with no probable casualty) hazard potential ranges from 50% (North Central) to 98% (Missouri and Colorado) of the total storage capacity within the corresponding region. Surprisingly, 43% of the dams with either high or significant potential hazards have no Emergency Action Plan. Potential economic benefits from the existing dams range from $0.7 billion (Mid Atlantic) to $15.4 billion (West Gulf). Spatiotemporal patterns of hazard potential and economic benefits from the NID-registered dams indicate a need for the development of region-specific preparation, emergency, and recovery plans for dam failure. This study provides an insight about how big data, such as the NID database, can provide actionable information for community resilience toward a safer and more sustainable environment.

Embracing Four Tensions in Human-Computer Interaction Research with Marginalized People

2021 ◽  
Vol 28 (2) ◽  
pp. 1-47
Author(s):  
Calvin A. Liang ◽  
Sean A. Munson ◽  
Julie A. Kientz
Keyword(s):  
United States ◽  
Human Computer Interaction ◽  
Thematic Analysis ◽  
The United States ◽  
New Paradigm ◽  
History Of ◽  
Interview Survey ◽  
Interaction Research ◽  
Oriented Approach ◽  
Computer Interaction

Human-computer interaction has a long history of working with marginalized people. We sought to understand how HCI researchers navigate work that engages with marginalized people and considerations researchers might work through to expand benefits and mitigate potential harms. In total, 24 HCI researchers, located primarily in the United States, participated in an interview, survey, or both. Through a reflexive thematic analysis, we identified four tensions—exploitation, membership, disclosure, and allyship. We explore the complexity involved in each, demonstrating that an equitable endpoint may not be possible, but this work is still worth pursuing when researchers make certain considerations. We emphasize that researchers who work with marginalized people should account for each tension in their research approaches to move forward. Finally, we propose an allyship-oriented approach to research that draws inspiration from discourse occurring in tangential fields and activist spaces and pushes the field into a new paradigm of research with marginalized people.

Obama's Legacy on Israel/Palestine

2016 ◽  
Vol 46 (1) ◽  
pp. 50-64 ◽  
Author(s):  
Josh Ruebner
Keyword(s):  
United States ◽  
The United States ◽  
State Solution ◽  
New Paradigm ◽  
Retrospective Assessment ◽  
Official Policy ◽  
The U.S

This retrospective assessment argues that despite the arrival in office in 2009 of a president who articulated the case for Palestinian rights more strongly and eloquently than any of his predecessors, U.S. official policy in the Obama years skewed heavily in favor of Israel. While a negotiated two-state resolution of the conflict between Israel and the Palestinians continued to be the formal goal of the United States, Israel's defiant refusal to stop settlement expansion, the administration's determined actions to perpetuate Israeli impunity in international fora, as well as the U.S. taxpayer's hefty subsidy of the Israeli military machine all ensured that no progress could be made on that score. The author predicts that with all hopes of a negotiated two-state solution now shattered, Obama's successor will have to contend with an entirely new paradigm, thanks in no small part to the gathering momentum of the Boycott, Divestment and Sanctions (BDS) movement.

A Multi-decadal Analysis of Reservoir Storage Change in Developing Regions

2021 ◽  
Keyword(s):  
Reservoir Operation ◽  
Storage Capacity ◽  
Assessment Tool ◽  
Severity Index ◽  
Drought Severity ◽  
Developing Regions ◽  
Reservoir Storage ◽  
Historical Observation ◽  
Reservoir Assessment ◽  
Storage Change

Abstract The limited amount of shared reservoir monitoring data around the world is insufficient to quantify the dynamic nature of reservoir operation with conventional ground-based methods. With the emergence of the Reservoir Assessment Tool (RAT) driven by a multitude of earth observing satellites and models, historical observation of reservoir operation spanning 35 years was made using open-source techniques. Trends in reservoir storage change were compared with trends of four critical hydrologic variables (precipitation, runoff, evaporation, and Palmer Drought Severity Index) to understand the potential role of natural drivers in altering reservoir operating pattern. It was found that the reservoirs in Africa were losing active storage at a rate of more than 1% per year of total storage capacity. Smaller reservoirs (with a capacity of less than 0.5 km3) in South-East Asia were found to experience a sharp gain in storage of 0.5% to 1% per year of total storage capacity. Storage change trends of large reservoirs with multiple years of residence time that are designed for strategic water supply needs and drought control were found to be less affected by precipitation trends and influenced more by drought and evaporation trends. Over Africa, most reservoir storage change trends were dictated by evaporation trends, while South Asian reservoirs appear to have their storage change influenced by drought and evaporation trends. Finally, findings suggest that operation of newer reservoirs are more sensitive to long-term hydrological trends and the regulated surface water variability that is controlled by older dams in the upstream.

On IoT and Its Integration With Cloud Computing

2021 ◽  
pp. 37-64
Author(s):  
Iram Abrar ◽  
Sahil Nazir Pottoo ◽  
Faheem Syeed Masoodi ◽  
Alwi Bamhdi
Keyword(s):  
Cloud Computing ◽  
Internet Of Things ◽  
Power Consumption ◽  
Rapid Growth ◽  
Storage Capacity ◽  
The Other ◽  
Computational Power ◽  
New Paradigm ◽  
Other Hand

Internet of things witnessed rapid growth in the last decade and is considered to be a promising field that plays an all-important role in every aspect of modern-day life. However, the growth of IoT is seriously hindered by factors like limited storage, communication capabilities, and computational power. On the other hand, cloud has the potential to support a large amount of data as it has massive storage capacity and can perform complex computations. Considering the tremendous potential of these two technologies and the manner in which they complement one another, they have been integrated to form what is commonly referred to as the cloud of things (CoT). This integration is beneficial as the resulting system is more robust, intelligent, powerful, and offers promising solutions to the users. However, the new paradigm (CoT) is faced with a significant number of challenges that need to be addressed. This chapter discusses in detail various challenges like reliability, latency, scalability, heterogeneity, power consumption, standardization, etc. faced by the cloud of things.

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