A review of microgrid development in the United States – A decade of progress on policies, demonstrations, controls, and software tools

Microgrids have become increasingly popular in the United States. Supported by favorable federal and local policies, microgrid projects can provide greater energy stability and resilience within a project site or community. This paper reviews major federal, state, and utility-level policies driving microgrid development in the United States. Representative U.S. demonstration projects are selected and their technical characteristics and non-technical features are introduced. The paper discusses trends in the technology development of microgrid systems as well as microgrid control methods and interactions within the electricity market. Software tools for microgrid design, planning, and performance analysis are illustrated with each tool's core capability. Finally, the paper summarizes the successes and lessons learned during the recent expansion of the U.S. microgrid industry that may serve as a reference for other countries developing their own microgrid industries

USA Swimming: The Data Integration Project

USA Swimming (USAS) is the National Governing Body for the sport of swimming, one of more than 40 National Governing Bodies for amateur sports in the United States. Their mission is, in part, to administer competitive swimming in accordance with the Amateur Sports Act , and to provide programs and services for our members, supporters, affiliates and the interested public The USAS membership community consists of athletes, non-athletes, and clubs. One of the most important functions USAS performs is to gather and maintain information on members in all categories. Maintaining individual swimmers\u27 times in sanctioned meets, for example, forms the basis for swimmers to be ranked nationally. The responsibility for the gathering of data is relegated to 2,800 clubs and 59 local swimming committees scattered across the US. In their previous system, data needed for the USAS master databases was gathered by the clubs and sent to the local swimming committees, which consolidated the data and forwarded it to the national headquarters in Colorado Springs. Unfortunately, by 2002, it became clear that the hodgepodge of different hardware platforms and software used by the clubs and local swimming committees made the data gathering process ripe for errors, which resulted in unreliable data in multiple database systems at USAS headquarters. This case describes the process USAS management followed to establish and manage the development of a new system whose principal features include a new centralized database with a pre-posting holding tank for data cleansing as well as a Web portal providing valuable new functionality to the user community. The project involved significant risks, not the least of which was the widely dispersed user community. Risks were mitigated by the development of a prototype and by engaging an independent verification and validation firm. The new system achieved the benefits that USAS projected when the project was first conceived. The complicated technical infrastructure was replaced by a Web-based architecture that provides faster and more reliable service to the USAS community at a lower cost. The problem of inaccuracies in the data caused by data being stored in multiple databases was eliminated with the establishment of the new centralized database and the holding tank\u27s data cleansing capabilities. Users at USAS headquarters and in the field embraced the new system because it simplified the data gathering process and greatly improved the reliability of the information they obtain from the centralized database. Further, the Web-based portal provides a stable operating environment for day-to-day operations and a platform that allows adding enhancements easily to the system

GCIP water and energy budget synthesis (WEBS)

As part of the World Climate Research Program\u27s (WCRPs) Global Energy and Water-Cycle Experiment (GEWEX) Continental-scale International Project (GCIP), a preliminary water and energy budget synthesis (WEBS) was developed for the period 1996–1999 from the “best available” observations and models. Besides this summary paper, a companion CD-ROM with more extensive discussion, figures, tables, and raw data is available to the interested researcher from the GEWEX project office, the GAPP project office, or the first author. An updated online version of the CD-ROM is also available at http://ecpc.ucsd.edu/gcip/webs.htm/. Observations cannot adequately characterize or “close” budgets since too many fundamental processes are missing. Models that properly represent the many complicated atmospheric and near-surface interactions are also required. This preliminary synthesis therefore included a representative global general circulation model, regional climate model, and a macroscale hydrologic model as well as a global reanalysis and a regional analysis. By the qualitative agreement among the models and available observations, it did appear that we now qualitatively understand water and energy budgets of the Mississippi River Basin. However, there is still much quantitative uncertainty. In that regard, there did appear to be a clear advantage to using a regional analysis over a global analysis or a regional simulation over a global simulation to describe the Mississippi River Basin water and energy budgets. There also appeared to be some advantage to using a macroscale hydrologic model for at least the surface water budgets

Ecological and social consequences of collaborative bison reintroduction in the western U.S.

2018 Summer.Includes bibliographical references.Collaborative conservation has been underway for centuries in diverse communities across the globe. More recently, collaborative groups of private and public land managers have coalesced around common natural resource objectives in the United States. This dissertation advances the science and practice of collaborative conservation through a literature review and two highly collaborative projects on bison reintroduction in the western United States. My specific objectives are: 1) To evaluate the status and impact of collaborative conservation groups in the United States; 2) To assess the ecological consequences of bison reintroduction for birds, mammals, and plants in Colorado's shortgrass prairie; 3) To understand how bison reintroduction affects human connections to grassland landscapes; and 4) To compare the effects of bison and cattle grazing on birds and plants in Colorado and New Mexico. To evaluate the status of U.S.-based collaborative conservation groups, I conducted a literature review to identify what factors motivate group formation, and to quantify biophysical, social, and economic goals, actions to achieve those goals and outcomes, and how outcomes were assessed. I also characterized the geographic distribution, participants and funding sources of U.S.-based collaborative conservation groups. To accomplish these objectives, I searched for peer-reviewed journal articles, book chapters, and reports in online databases, resulting in 174 papers that described 257 collaborative conservation groups in all 50 states. Overall, information on outcomes and how groups assessed outcomes was sparse. For those groups with published outcomes, most outcomes had positive results for biophysical, social, and economic goals. To assess the ecological consequences of species reintroduction and how reintroductions may catalyze public engagement in grassland conservation, I assessed both the ecological and social effects of bison reintroduction to northern Colorado. Specifically, I explored the effect of bison reintroduction on: 1) bird density and habitat use, 2) mammal habitat use, 3) vegetation composition and structure, and 4) human connections (place attachment) to a shortgrass prairie. To measure ecological responses, I surveyed birds, mammals, and plants before and after bison reintroduction. To understand how bison shape visitor connections to grasslands, I gave structured surveys to people who visited the site before and after bison reintroduction. I found few short-term effects of bison on grassland birds, mammals, and plants. However, I measured a significant increase in place attachment to the grassland site post reintroduction. These results suggest that bison reintroduction does not have strong, short-term ecological effects, but does have immediate, positive benefits for connecting people to ecosystems. I recommend that future projects prioritize monitoring ecological and social outcomes to advance the science and practice of bison reintroduction. To understand whether non-native species can serve as proxies for extinct or rare native species, I evaluated the role of bison and cattle grazing in shaping habitat for grassland birds and plants. To compare ecological responses, I surveyed birds and plants between bison, cattle, and reference sites in Colorado and New Mexico. While I found few differences in plant height and cover among bison, cattle, and reference sites, I did find significant differences in bird densities among the sites. In both Colorado and New Mexico, some grassland obligate birds preferred bison sites, while others preferred cattle sites. Bison and cattle may serve as reciprocal ecological surrogates in cases where they have similar densities on the landscape, where cattle graze on a rotational system. Overall, my dissertation demonstrates that collaborative conservation often achieves success, but these outcomes are not always assessed or reported. I also show that a highly collaborative bison reintroduction effort in Colorado had few ecological effects in the short-term, but did help connect people to a grassland landscape. In addition, my study found that collaboratively managed bison and cattle herds in Colorado and New Mexico create viable habitat for obligate grassland birds

Economic Contributions of Winter Sports in a Changing Climate

In mountain towns across the United States that rely on winter tourism, snow is currency. For snow lovers and the winter sports industry, predictions of a future with warmer winters, reduced snowfall, and shorter snow seasons is inspiring them to innovate, increase their own efforts to address emissions, and speak publicly on the urgent need for action. This report examines the economic contribution of winter snow sports tourism to U.S. national and state-level economies. In a 2012 analysis, Protect Our Winters and the Natural Resources Defense Council found that the winter sports tourism industry generates $12.2 billion and 23 million Americans participate in winter sports annually. That study found that changes in the winter season driven by climate change were costing the downhill ski resort industry approximately$1.07 billion in aggregated revenue over high and low snow years over the last decade

The International Surface Pressure Databank version 2

The International Surface Pressure Databank (ISPD) is the world's largest collection of global surface and sea-level pressure observations. It was developed by extracting observations from established international archives, through international cooperation with data recovery facilitated by the Atmospheric Circulation Reconstructions over the Earth (ACRE) initiative, and directly by contributing universities, organizations, and countries. The dataset period is currently 1768–2012 and consists of three data components: observations from land stations, marine observing systems, and tropical cyclone best track pressure reports. Version 2 of the ISPD (ISPDv2) was created to be observational input for the Twentieth Century Reanalysis Project (20CR) and contains the quality control and assimilation feedback metadata from the 20CR. Since then, it has been used for various general climate and weather studies, and an updated version 3 (ISPDv3) has been used in the ERA-20C reanalysis in connection with the European Reanalysis of Global Climate Observations project (ERA-CLIM). The focus of this paper is on the ISPDv2 and the inclusion of the 20CR feedback metadata. The Research Data Archive at the National Center for Atmospheric Research provides data collection and access for the ISPDv2, and will provide access to future versions

Case Study - Climate Change and Water Resources: A Primer for Municipal Water Providers

This case study summarizes the best available scientific evidence on climate change for water utility managers, including both natural changes and changes that may be caused by human activities. The document suggests the types of impacts climate change can have on water resources and provides guidance on planning and adaptation strategies useful to managers. To plan effectively for the future, utilities should assess the potential impacts of a range of plausible climate change scenarios on their ability to meet customer needs and comply with quality standards and environmental objectives in a cost-effective manner. Educational levels: Undergraduate lower division, Undergraduate upper division, Graduate or professional

Environmentally induced phenotypic variation in wild yellow-bellied marmots

We thank all the marmoteers who helped in data collection and 2 anonymous reviewers who helped us to clarify our message. AM-C was supported by a Fulbright Fellowship, and JGAM was supported by Fond Québécois de Recherche sur la Nature et les Technologies. KBA was supported by the National Science Foundation between 1962 and 2000. DTB was supported by the National Geographic Society, UCLA (Faculty Senate and the Division of Life Sciences), a Rocky Mountain Biological Laboratory research fellowship, and by the National Science Foundation (IDBR-0754247 and DEB-1119660 to DTB as well as DBI 0242960 and 0731346 to the Rocky Mountain Biological Laboratory).Peer reviewedPostprin

High Time for Conservation: Adding the Environment to the Debate on Marijuana Liberalization

The liberalization of marijuana policies, including the legalization of medical and recreational marijuana, is sweeping the United States and other countries. Marijuana cultivation can have significant negative collateral effects on the environment that are often unknown or overlooked. Focusing on the state of California, where by some estimates 60% -- 70% of the marijuana consumed in the United States is grown, we argue that (a) the environmental harm caused by marijuana cultivation merits a direct policy response, (b) current approaches to governing the environmental effects are inadequate, and (c) neglecting discussion of the environmental impacts of cultivation when shaping future marijuana use and possession policies represents a missed opportunity to reduce, regulate, and mitigate environmental harm

Indigenous governance bibliography

AIATSIS has compiled this bibliography on Indigenous governance as part of its Indigenous Governance Building: Mapping current and future research and practical resource needs project. It is to be read in conjunction with an AIATSIS bibliography on free, prior and informed consent, engagement and consultation, and other bibliographies relating to various aspects of Indigenous governance which have been included in the following pages and are also available via the project webpage linked above. The term ‘governance’ is wide reaching and it has not been possible to cover all Indigenous governance related topics comprehensively. Within the context of this project governance is broadly defined as a cultural construct where the principles and standards of what constitutes ‘good’, ‘good enough’, ‘strong’, ‘legitimate’, ‘ineffective’, ‘corrupt’ or ‘bad’ governance are informed by culturally-based values, traditions and ideologies; and vary significantly between different societies. There is no end-point goal of ‘perfect’ governance that will eventually be achieved in the future. Rather, governance is adaptive according to context and circumstances. This means it may swing between effectiveness and dysfunction. It is to be found as much in people’s daily self-determined practices, processes and relationships, as it is in visible structures and formal institutions