Search Results - "Hoff, R. M"

On the effectiveness of nitrogen oxide reductions as a control over ammonium nitrate aerosol by Pusede, S. E, Duffey, K. C, Shusterman, A. A, Saleh, A, Laughner, J. L, Wooldridge, P. J, Zhang, Q, Parworth, C. L, Kim, H, Capps, S. L, Valin, L. C, Cappa, C. D, Fried, A, Walega, J, Nowak, J. B, Weinheimer, A. J, Hoff, R. M, Berkoff, T. A, Beyersdorf, A. J, Olson, J, Crawford, J. H, Cohen, R. C

“…Nitrogen oxides (NOx) have fallen steadily across the US over the last 15 years. At the same time, NOx concentrations decrease on weekends relative to…”
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A mobile differential absorption lidar to measure sub-hourly fluctuation of tropospheric ozone profiles in the Baltimore–Washington, D.C. region by Sullivan, J. T, McGee, T. J, Sumnicht, G. K, Twigg, L. W, Hoff, R. M

“…Tropospheric ozone profiles have been retrieved from the new ground-based National Aeronautics and Space Administration (NASA) Goddard Space Flight Center…”
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An accuracy assessment of the CALIOP/CALIPSO version 2/version 3 daytime aerosol extinction product based on a detailed multi-sensor, multi-platform case study by Kacenelenbogen, M., Vaughan, M. A., Redemann, J., Hoff, R. M., Rogers, R. R., Ferrare, R. A., Russell, P. B., Hostetler, C. A., Hair, J. W., Holben, B. N.

“…The Cloud Aerosol LIdar with Orthogonal Polarization (CALIOP), on board the CALIPSO platform, has measured profiles of total attenuated backscatter coefficient…”
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A multi-angle aerosol optical depth retrieval algorithm for geostationary satellite data over the United States by Zhang, H, Lyapustin, A, Wang, Y, Kondragunta, S, Laszlo, I, Ciren, P, Hoff, R M

“…Aerosol optical depth (AOD) retrievals from geostationary satellites have high temporal resolution compared to the polar orbiting satellites and thus enable us…”
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Infrared retrievals of dust using AIRS: Comparisons of optical depths and heights derived for a North African dust storm to other collocated EOS A-Train and surface observations by DeSouza-Machado, S. G., Strow, L. L., Imbiriba, B., McCann, K., Hoff, R. M., Hannon, S. E., Martins, J. V., Tanré, D., Deuzé, J. L., Ducos, F., Torres, O.

“…AIRS thermal infrared radiance data are used with a fast infrared scattering radiative transfer model to physically retrieve the dust column amount and dust…”
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Aerosol optical depth (AOD) retrieval using simultaneous GOES-East and GOES-West reflected radiances over the western United States by Zhang, H, Hoff, R. M, Kondragunta, S, Laszlo, I, Lyapustin, A

“…Aerosol optical depth (AOD) in the western United States is observed independently by both the (Geostationary Operational Environmental Satellites) GOES-East…”
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Stratospheric AOD after the 2011 eruption of Nabro volcano measured by lidars over the Northern Hemisphere by Sawamura, P, Vernier, J P, Barnes, J E, Berkoff, T A, Welton, E J, Alados-Arboledas, L, Navas-Guzmán, F, Pappalardo, G, Mona, L, Madonna, F, Lange, D, Sicard, M, Godin-Beekmann, S, Payen, G, Wang, Z, Hu, S, Tripathi, S N, Cordoba-Jabonero, C, Hoff, R M

“…Nabro volcano (13.37°N, 41.70°E) in Eritrea erupted on 13 June 2011 generating a layer of sulfate aerosols that persisted in the stratosphere for months. For…”
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Aerosol optical and microphysical retrievals from a hybrid multiwavelength lidar data set – DISCOVER-AQ 2011 by Sawamura, P, Müller, D, Hoff, R. M, Hostetler, C. A, Ferrare, R. A, Hair, J. W, Rogers, R. R, Anderson, B. E, Ziemba, L. D, Beyersdorf, A. J, Thornhill, K. L, Winstead, E. L, Holben, B. N

“…Retrievals of aerosol microphysical properties (effective radius, volume and surface-area concentrations) and aerosol optical properties (complex index of…”
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Nonlinearity in the Slopes of Clausius−Clapeyron Plots for SVOCs by Hoff, R. M, Brice, K. A, Halsall, C. J

“…Plots of partial pressures of semivolatile organic compounds versus inverse temperature at the time of measurement (Clausius−Clapeyron or CC plots) have been…”
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Atmospheric deposition of toxic chemicals to the Great Lakes: A review of data through 1994 by Hoff, R.M., Strachan, W.M.J., Sweet, C.W., Chan, C.H., Shackleton, M., Bidleman, T.F., Brice, K.A., Burniston, D.A., Cussion, S., Gatz, D.F., Harlin, K., Schroeder, W.H.

“…An update is presented of the atmospheric loadings of 11 organochlorine chemicals, five trace elements and four polynuclear aromatic hydrocarbons (PAHs) to the…”
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GLAS long-range transport observation of the 2003 California forest fire plumes to the northeastern US by Hoff, R. M., Palm, S. P., Engel-Cox, J. A., Spinhirne, J.

“…In October 2003, a series of forest and brush fires in southern California burned an area of over 2750 km2 with plumes reaching up to 6 km in altitude over the…”
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Detection of a tropospheric ozone anomaly using a newly developed ozone retrieval algorithm for an up-looking infrared interferometer by Lightner, K. J., McMillan, W. W., McCann, K. J., Hoff, R. M., Newchurch, M. J., Hintsa, E. J., Barnet, C. D.

“…On 2 June 2003, the Baltimore Bomem Atmospheric Emitted Radiance Interferometer (BBAERI) recorded an infrared spectral time series indicating the presence of a…”
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Tumor necrosis factor-alpha induces changes in mitochondrial cellular distribution in motor neurons by Stommel, E.W, van Hoff, R.M, Graber, D.J, Bercury, K.K, Langford, G.M, Harris, B.T

“…Abstract Motor neuron (MN) mitochondrial abnormalities and elevation in spinal fluid levels of the inflammatory cytokine tumor necrosis factor-alpha (TNF-α)…”
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THE CALIPSO MISSION: A Global 3D View of Aerosols and Clouds by Winker, D. M., Pelon, J., Coakley, J. A., Ackerman, S. A., Charlson, R. J., Colarco, P. R., Flamant, P., Fu, Q., Hoff, R. M., Kittaka, C., Kubar, T. L., Le Treut, H., Mccormick, M. P., Mégie, G., Poole, L., Powell, K., Trepte, C., Vaughan, M. A., Wielicki, B. A.

“…Aerosols and clouds have important effects on Earth's climate through their effects on the radiation budget and the cycling of water between the atmosphere and…”
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Influence of Eutrophication on Air−Water Exchange, Vertical Fluxes, and Phytoplankton Concentrations of Persistent Organic Pollutants by Dachs, Jordi, Eisenreich, Steven J, Hoff, Raymond M

“…The influence of eutrophication on the biogeochemical cycles of persistent organic pollutants (POPs) such as polychlorinated biphenyls (PCBs) is largely…”
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Sources and composition of PM2.5 in the Colorado Front Range during the DISCOVER‐AQ study by Valerino, M. J., Johnson, J. J., Izumi, J., Orozco, D., Hoff, R. M., Delgado, R., Hennigan, C. J.

“…Measurements of particulate matter (PM2.5) chemical composition were carried out in Golden, CO, during the Deriving Information on Surface Conditions from…”
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Annual cycle of polychlorinated biphenyls and organohalogen pesticides in air in southern Ontario. 1. Air concentration data by Hoff, R. M, Muir, D. C. G, Grift, N. P

“…A total of 143 samples of 91 organic chemicals in air were obtained over a one-year period in Southern Ontario Canada, and their annual behavior was…”
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Temporal Trends in Gas-Phase Concentrations of Chlorinated Pesticides Measured at the Shores of the Great Lakes by Cortes, Donald R, Basu, Ilora, Sweet, Clyde W, Brice, Kenneth A, Hoff, Raymond M, Hites, Ronald A

“…Multiple regression was used to examine the temperature dependence and to elucidate temporal trends of atmospheric gas-phase partial pressures of 10…”
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Hygrosopicity measurements of aerosol particles in the San Joaquin Valley, CA, Baltimore, MD, and Golden, CO by Orozco, Daniel, Beyersdorf, A. J., Ziemba, L. D., Berkoff, T., Zhang, Q., Delgado, R., Hennigan, C. J., Thornhill, K. L., Young, D. E., Parworth, C., Kim, H., Hoff, R. M.

“…Aerosol hygroscopicity was investigated using a novel dryer‐humidifier system, coupled to a TSI‐3563 nephelometer, to obtain the light scattering coefficient…”
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Qualitative and quantitative evaluation of MODIS satellite sensor data for regional and urban scale air quality by Engel-Cox, Jill A., Holloman, Christopher H., Coutant, Basil W., Hoff, Raymond M.

“…Advances in satellite sensors have provided new datasets for monitoring air quality at urban and regional scales. Qualitative true color images and…”
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