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Energy Requirements for Desalinating Brackish Groundwater in the United States
Published 2020“…Since the 1960s, only one national assessment of groundwater resource distribution and availability has been conducted in the United States, and no national assessment has been conducted on the energy costs required to make brackish groundwater potable. …”
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Atmospheric ammonia and particulate inorganic nitrogen over the United States
Published 2013“…However in the remaining continental United States we find that the nitrate simulation is biased high (normalized mean bias > = 1.0) year-round, except in Spring (due to the underestimate in ammonia in this season). …”
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Modeling the hydroclimatology of the midwestern United States. Part 1: current climate
Published 2016“…Overall, the model that reproduces the observed seasonal cycles of the midwestern United States climate system best is RegCM3 using IBIS and the AS74 convective closure assumption. …”
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Interannual variability of ammonia concentrations over the United States: sources and implications
Published 2017“…The variability of atmospheric ammonia (NH[subscript3]), emitted largely from agricultural sources, is an important factor when considering how inorganic fine particulate matter (PM[subscript 2.5]) concentrations and nitrogen cycling are changing over the United States. This study combines new observations of ammonia concentration from the surface, aboard aircraft, and retrieved by satellite to both evaluate the simulation of ammonia in a chemical transport model (GEOS-Chem) and identify which processes control the variability of these concentrations over a 5-year period (2008–2012). …”
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Aerosol loading in the Southeastern United States: reconciling surface and satellite observations
Published 2013“…We investigate the seasonality in aerosols over the Southeastern United States using observations from several satellite instruments (MODIS, MISR, CALIOP) and surface network sites (IMPROVE, SEARCH, AERONET). …”
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Future Fire Impacts on Smoke Concentrations, Visibility, and Health in the Contiguous United States
Published 2020“…We find that PM2.5 concentrations will decrease overall in the contiguous United States (CONUS) due to decreasing anthropogenic emissions (total PM2.5 decreases by 3% in Representative Concentration Pathway [RCP] 8.5 and 34% in RCP4.5 by 2100), but increasing fire-related PM2.5 (fire-related PM2.5 increases by 55% in RCP4.5 and 190% in RCP8.5 by 2100) offsets these benefits and causes increases in total PM2.5 in some regions. …”
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Partitioning evapotranspiration over the continental United States using weather station data
Published 2020“…We apply the methodology at 1,614 weather stations across the continental United States during the summers of 2015 and 2016. We evaluate the method using vegetation indices inferred from satellites, finding strong spatial correlations between modeled transpiration and solar-induced fluorescence (r2 = 0.87), and modeled vegetation fraction and leaf area index (r2 = 0.70). …”
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Contrasting Reactive Organic Carbon Observations in the Southeast United States (SOAS) and Southern California (CalNex)
Published 2021“…We revisit measurements of ROC species made during two field campaigns in the United States: the 2013 SOAS campaign in forested Centreville, AL, and the 2010 CalNex campaign in urban Pasadena, CA. …”
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Observational Evidence that Great Plains Irrigation Has Enhanced Summer Precipitation Intensity and Totals in the Midwestern United States
Published 2016“…Significant increases in summer precipitation have occurred in the midwestern United States over the last century for reasons that remain unclear. …”
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Land cover change impacts on atmospheric chemistry: simulating projected large-scale tree mortality in the United States
Published 2016“…Large-scale tree mortality that is projected to occur across the United States as a result of insect and disease may therefore have unexplored consequences for tropospheric chemistry. …”
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Land cover change impacts on atmospheric chemistry: simulating projected large-scale tree mortality in the United States
Published 2018“…Large-scale tree mortality that is projected to occur across the United States as a result of insect and disease may therefore have unexplored consequences for tropospheric chemistry. …”
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Investigating Carbonaceous Aerosol and Its Absorption Properties From Fires in the Western United States (WE‐CAN) and Southern Africa (ORACLES and CLARIFY)
Published 2021“…Our comparisons suggest that BC and/or BrC absorption is substantially higher downwind of Africa than in the western United States and, while the Saleh et al. (2014, https://doi.org/10.1038/ngeo2220) and FIREX parameterizations based on the BC:OA ratio improve model-observation agreement in some regions, they do not sufficiently differentiate absorption characteristics at short wavelengths. …”
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How emissions, climate, and land use change will impact mid-century air quality over the United States: a focus on effects at national parks
Published 2015“…We use a global coupled chemistry–climate–land model (CESM) to assess the integrated effect of climate, emissions and land use changes on annual surface O[subscript 3] and PM[subscript 2.5] in the United States with a focus on national parks (NPs) and wilderness areas, using the RCP4.5 and RCP8.5 projections. …”
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Forecasting long-term gas production from shale
Published 2014“…Oil and natural gas from deep shale formations are transforming the United States economy and its energy outlook. Back in 2005, the US Energy Information Administration published projections of United States natural gas supply that stressed the need to develop an import infrastructure (1): by 2025, imports would account for almost one-third of United States consumption. …”
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The mechanisms and meteorological drivers of the summertime ozone–temperature relationship
Published 2020“…Here we explore the summertime O3- temperature relationship in the United States and Europe using the chemical transport model GEOS-Chem. …”
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Comprehensive comparison of pore-scale models for multiphase flow in porous media
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