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Records 1 to 25 of 894 records about 'climate change' published between 09/03/2012 and 09/03/2017

2017
4th National Climate Assessment: Public Webinar for Air Quality Chapter
(PRESENTATION) [Presented : May 08, 2017]
On May 8, 2017, the NCA4 Air Quality chapter team held a public engagement webinar. The objectives of the webinar were to gather input from stakeholders, including authors of the regional chapters, to help inform the writing and development of NCA4, and to raise awareness of the ...
A Climate Change Adaptation Strategy for Management of Coastal Marsh Systems
(JOURNAL) [Published : May 01, 2017]
Sea level rise is causing shoreline erosion, increased coastal flooding, and marsh vulnerability to the impact of storms. Coastal marshes provide flood abatement, carbon and nutrient sequestration, water quality maintenance, and habitat for fish, shellfish, and wildlife, includin...
A Framework to Quantify the Strength of the Ecological Links Between an Environmental Stressor and Final Ecosystem Services
(JOURNAL) [Published : May 02, 2017]
Anthropogenic stressors such as climate change, fire, and pollution are driving shifts in ecosystem function and resilience. Scientists generally rely on biological indicators of these stressors to signal that ecosystem conditions have been altered beyond an acceptable amount. Ho...
A Generalized Simple Formulation of Convective Adjustment Timescale for Cumulus Convection Parameterizations
(PRESENTATION) [Presented : Jan 26, 2017]
Convective adjustment timescale (τ) for cumulus clouds is one of the most influential parameters controlling parameterized convective precipitation in climate and weather simulation models at global and regional scales. Due to the complex nature of deep convection, a pres...
A Laboratory Comparison of Emission Factors, Number Size Distributions, and Morphology of Ultrafine Particles from 11 Different Household Cookstove-Fuel Systems
(JOURNAL) [Published : Jun 12, 2017]
Ultrafine particle (UFP) emissions and particle number size distributions (PNSD) are critical in the evaluation of air pollution impacts on human health and climate change. Residential cookstove emissions are a major source of many air pollutants; however, data on UFP number emis...
A Topical Overview of Cumulative Risk Assessment Concepts, Methods, and Applications (2007–2016)
(JOURNAL) [Published : Apr 07, 2017]
Cumulative risk assessments (CRAs) address combined risks from exposures to multiple chemical and nonchemical stressors and may focus on vulnerable communities or populations. Significant contributions have been made to the development of concepts, methods, and applications for C...
A framework for expanding aqueous chemistry in the Community Multiscale Air Quality (CMAQ) model version 5.1
(JOURNAL) [Published : Apr 13, 2017]
This paper describes the development and implementation of an extendable aqueous-phase chemistry option (AQCHEM − KMT(I)) for the Community Multiscale Air Quality (CMAQ) modeling system, version 5.1. Here, the Kinetic PreProcessor (KPP), version 2.2.3, is used to generate a Rosen...
A framework to analyze emissions implications of manufacturing shifts in the industrial sector through integrating bottom-up energy models and economic input-output environmental life cycle assessment models
(PRESENTATION) [Presented : Aug 18, 2017]
Future year emissions depend highly on the evolution of the economy, technology and current and future regulatory drivers. A scenario framework was adopted to analyze various technology development pathways and societal change while considering existing regulations and future unc...
A framework to analyze emissions implications of manufacturing shifts in the industrial sector through integrating bottom-up energy models and economic input/output environmental life cycle assessment models
(PRESENTATION) [Presented : Aug 18, 2017]
Future year emissions depend highly on economic, technological, societal and regulatory drivers. A scenario framework was adopted to analyze technology development pathways and changes in consumer preferences, and evaluate resulting emissions growth patterns while considering fut...
A modified eco-efficiency framework and methodology for advancing the state of practice of sustainability analysis as applied to green infrastructure
(JOURNAL) [Published : Sep 01, 2017]
We propose a modified eco-efficiency (EE) framework and novel sustainability analysis methodology for green infrastructure (GI) practices used in water resource management. Green infrastructure practices such as rainwater harvesting (RWH), rain gardens, porous pavements, and gree...
ASSESSING LONGITUDINAL THERMAL CONNECTIVITY FOR PACIFIC SALMONIDS
(PRESENTATION) [Presented : May 03, 2017]
Water temperature is a key driver of ecological processes in aquatic environments and can influence biological connectivity among riverine habitats. Riverine fish and other mobile aquatic species often must navigate a variety of physical barriers such as dams and culverts. For Pa...
ASSESSING THE IMPORTANCE OF THERMAL REFUGE USE TO MIGRATING ADULT SALMON AND STEELHEAD
(PRESENTATION) [Presented : Mar 03, 2017]
Salmon populations require river networks that provide water temperature regimes sufficient to support a diversity of salmonid life histories across space and time. The importance of cold water refuges for migrating adult salmon and steelhead may seem intuitive, and refuges are c...
Adrenergic and steroid hormone modulation of ozone-induced pulmonary injury and inflammation
(PRESENTATION) [Presented : May 22, 2017]
Rationale: We have shown that acute ozone inhalation promotes activation of the sympathetic and hypothalamic-pituitary-adrenal (HPA) axis leading to release of cortisol and epinephrine from the adrenals. Adrenalectomy (ADREX) inhibits ozone-induced pulmonary vascular leakage and ...
An approach to measure parameter sensitivity in watershed hydrological modelling
(JOURNAL) [Published : Jan 16, 2017]
Hydrologic responses vary spatially and temporally according to watershed characteristics. In this study, the hydrologic models that we developed earlier for the Little Miami River (LMR) and Las Vegas Wash (LVW) watersheds were used for detail sensitivity analyses. To compare the...
An open science approach to modeling and visualizing cyanobacteria blooms in lakes and ponds
(PRESENTATION) [Presented : Apr 05, 2017]
It is expected that cyanobacteria blooms will increase in frequency, duration, and severity as inputs of nutrients increase and the impacts of climate change are realized. Partly in response to this, federal, state, and local entities have ramped up efforts to better understand b...
Assessing and managing multiple risks in a changing world – the Roskilde recommendations.
(JOURNAL) [Published : Jan 01, 2017]
Roskilde University (Denmark) hosted a November 2015 workshop, Environmental Risk—Assessing and Managing Multiple Risks in a Changing World. This Focus article presents the consensus recommendations of 30 attendees from 9 countries regarding implementation of a common curre...
Assessment of Uinta Basin Oil and Natural Gas Well Pad Pneumatic Controller Emissions
(JOURNAL) [Published : Apr 19, 2017]
In the fall of 2016, a field study was conducted in the Uinta Basin Utah to improve information on oil and natural gas well pad pneumatic controllers (PCs) and emission measurement methods. A total of 80 PC systems at five oil sites (supporting six wells) and three gas sites (sup...
Balancing stability and flexibility in adaptive governance: an analysis of tools available in U.S. environmental law
(JOURNAL) [Published : Jun 30, 2017]
Adaptive governance must work “on the ground,” that is, it must operate through structures and procedures that the people it governs perceive to be legitimate and fair, as well as incorporating processes and substantive goals that are effective in allowing social-ecological syste...
Basal area growth, carbon isotope discrimination, and intrinsic water use efficiency after fertilization of Douglas-fir in the Oregon Coast Range
(JOURNAL) [Published : Apr 01, 2017]
Many hectares of intensively managed Douglas-fir (Pseudotsuga menziesii Mirb. Franco) stands in western North America are fertilized with nitrogen to increase growth rates. Understanding the mechanisms of response facilitates prioritization of stands for treatment. The objective ...
Benefits of using a Social-Ecological Systems Approach to Conceptualize and Model Wetlands Restoration
(PRESENTATION) [Presented : Jun 05, 2017]
Using a social-ecological systems (SES) perspective to examine wetland restoration helps decision-makers recognize interdependencies and relations between ecological and social components of coupled systems. Conceptual models are an invaluable tool to capture, visualize, and orga...
Bringing hands-on exploration of air quality technology to the classroom
(PRESENTATION) [Presented : Jul 12, 2017]
This is an educational presentation to the OAQPS Teachers Workshop on the PM sensor kit and other related air technology educational activities.
Carbon Storage in US Wetlands.
(PRESENTATION) [Presented : Aug 11, 2017]
Background/Question/Methods Wetland soils contain some of the highest stores of soil carbon in the biosphere. However, there is little understanding of the quantity and distribution of carbon stored in US wetlands or of the potential effects of human disturbance on these stocks. ...
Carbon storage and greenhouse gas fluxes in the San Juan Bay Estuary: Current trends and likely future states
(PRESENTATION) [Presented : Jun 04, 2017]
Mangrove systems are known carbon (C) and greenhouse gas (GHG) sinks, but this function may be affected by global change drivers that include (but are not limited to) eutrophication, climate change, species composition shifts, and hydrological changes. In Puerto Rico’s...
Carbon storage and greenhouse gas fluxes in the San Juan Bay Estuary: Current trends and likely future states.
(PRESENTATION) [Presented : Jun 09, 2017]
Mangrove systems are known carbon (C) and greenhouse gas (GHG) sinks, but this function may be affected by global change drivers that include (but are not limited to) eutrophication, climate change, species composition shifts, and hydrological changes. In Puerto Rico’s San...
Changes in Landscape Greenness and Climatic Factors over 25 Years (1989–2013) in the USA
(JOURNAL) [Published : Mar 21, 2017]
Monitoring and quantifying changes in vegetation cover over large areas using remote sensing can be achieved using the Normalized Difference Vegetation Index (NDVI), an indicator of greenness. However, distinguishing gradual shifts in NDVI (e.g. climate change) versus direct and ...