Search Results - "GRELL, G"

A scale and aerosol aware stochastic convective parameterization for weather and air quality modeling by Grell, G. A, Freitas, S. R

“…A convective parameterization is described and evaluated that may be used in high resolution non-hydrostatic mesoscale models as well as in modeling system…”
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Inclusion of biomass burning in WRF-Chem: impact of wildfires on weather forecasts by Grell, G., Freitas, S. R., Stuefer, M., Fast, J.

“…A plume rise algorithm for wildfires was included in WRF-Chem, and applied to look at the impact of intense wildfires during the 2004 Alaska wildfire season on…”
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Data assimilation in atmospheric chemistry models: current status and future prospects for coupled chemistry meteorology models by Bocquet, M, Elbern, H, Eskes, H, Hirtl, M, Žabkar, R, Carmichael, G. R, Flemming, J, Inness, A, Pagowski, M, Pérez Camaño, J. L, Saide, P. E, San Jose, R, Sofiev, M, Vira, J, Baklanov, A, Carnevale, C, Grell, G, Seigneur, C

“…Data assimilation is used in atmospheric chemistry models to improve air quality forecasts, construct re-analyses of three-dimensional chemical (including…”
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Online coupled regional meteorology chemistry models in Europe: current status and prospects by Baklanov, A, Schlünzen, K, Suppan, P, Baldasano, J, Brunner, D, Aksoyoglu, S, Carmichael, G, Douros, J, Flemming, J, Forkel, R, Galmarini, S, Gauss, M, Grell, G, Hirtl, M, Joffre, S, Jorba, O, Kaas, E, Kaasik, M, Kallos, G, Kong, X, Korsholm, U, Kurganskiy, A, Kushta, J, Lohmann, U, Mahura, A, Manders-Groot, A, Maurizi, A, Moussiopoulos, N, Rao, S. T, Savage, N, Seigneur, C, Sokhi, R. S, Solazzo, E, Solomos, S, Sørensen, B, Tsegas, G, Vignati, E, Vogel, B, Zhang, Y

“…Online coupled mesoscale meteorology atmospheric chemistry models have undergone a rapid evolution in recent years. Although mainly developed by the air…”
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Constraining black carbon aerosol over Asia using OMI aerosol absorption optical depth and the adjoint of GEOS-Chem by Zhang, L, Henze, D. K, Grell, G. A, Carmichael, G. R, Bousserez, N, Zhang, Q, Torres, O, Ahn, C, Lu, Z, Cao, J, Mao, Y

“…Accurate estimates of the emissions and distribution of black carbon (BC) in the region referred to here as Southeastern Asia (70–150° E, 11° S–55° N) are…”
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Three‐dimensional variational data assimilation of ozone and fine particulate matter observations: some results using the Weather Research and Forecasting—Chemistry model and Grid‐point Statistical Interpolation by Pagowski, M., Grell, G. A., McKeen, S. A., Peckham, S. E., Devenyi, D.

“…In operational air‐quality forecasting, initial concentrations of chemical species are often obtained using previous‐day forecasts with limited or no account…”
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Analyzing the Eyjafjallajökull 2010 eruption using satellite remote sensing, lidar and WRF-Chem dispersion and tracking model by Webley, P. W., Steensen, T., Stuefer, M., Grell, G., Freitas, S., Pavolonis, M.

“…Volcanic ash forecasting is a critical tool in hazard assessment and operational volcano monitoring. The use of volcanic ash transport and dispersion models…”
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WRF-Chem model sensitivity to chemical mechanisms choice in reconstructing aerosol optical properties by Balzarini, A., Pirovano, G., Honzak, L., Žabkar, R., Curci, G., Forkel, R., Hirtl, M., San José, R., Tuccella, P., Grell, G.A.

“…In the framework of the AQMEII initiative WRF-Chem has been applied over Europe adopting two chemical configurations for the calendar year 2010. The first one…”
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The Coupled Aerosol and Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System (CATT-BRAMS) – Part 1: Model description and evaluation by Freitas, S. R., Longo, K. M., Silva Dias, M. A. F., Chatfield, R., Silva Dias, P., Artaxo, P., Andreae, M. O., Grell, G., Rodrigues, L. F., Fazenda, A., Panetta, J.

“…We introduce the Coupled Aerosol and Tracer Transport model to the Brazilian developments on the Regional Atmospheric Modeling System (CATT-BRAMS). CATT-BRAMS…”
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Effects of changing power plant NOx emissions on ozone in the eastern United States: Proof of concept by Frost, G. J., McKeen, S. A., Trainer, M., Ryerson, T. B., Neuman, J. A., Roberts, J. M., Swanson, A., Holloway, J. S., Sueper, D. T., Fortin, T., Parrish, D. D., Fehsenfeld, F. C., Flocke, F., Peckham, S. E., Grell, G. A., Kowal, D., Cartwright, J., Auerbach, N., Habermann, T.

“…Recent decreases in nitrogen oxide (NOx = NO + NO2) emissions from eastern U.S. power plants and their effects on regional ozone are studied. Using the EPA…”
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Tuned Range-Separated Density Functional Theory and Dyson Orbital Formalism for Photoelectron Spectra by Möhle, T, Bokareva, O. S, Grell, G, Kühn, O, Bokarev, S. I

“…Photoelectron spectroscopy represents a valuable tool to analyze structural and dynamical changes in molecular systems. Comprehensive interpretation of…”
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PREP-CHEM-SRC – 1.0: a preprocessor of trace gas and aerosol emission fields for regional and global atmospheric chemistry models by Freitas, SR, Longo, K M, Alonso, M F, Pirre, M, Marecal, V, Grell, G, Stockler, R, Mello, R F, Gacita, MS

“…The preprocessor PREP-CHEM-SRC presented in the paper is a comprehensive tool aiming at preparing emission fields of trace gases and aerosols for use in…”
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Satellite-observed U.S. power plant NOx emission reductions and their impact on air quality by Kim, S.-W., Heckel, A., McKeen, S. A., Frost, G. J., Hsie, E.-Y., Trainer, M. K., Richter, A., Burrows, J. P., Peckham, S. E., Grell, G. A.

“…Nitrogen oxide (NOx) emissions resulting from fossil fuel combustion lead to unhealthy levels of near‐surface ozone (O3). One of the largest U.S. sources,…”
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Deposition and rainwater concentrations of trifluoroacetic acid in the United States from the use of HFO-1234yf by Kazil, J., McKeen, S., Kim, S.-W., Ahmadov, R., Grell, G. A., Talukdar, R. K., Ravishankara, A. R.

“…Currently, HFC‐134a (1,1,1,2‐tetrafluoroethane) is the most common refrigerant in automobile air conditioners. This high global warming potential substance…”
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Assessment of an ensemble of seven real-time ozone forecasts over eastern North America during the summer of 2004 by McKeen, S., Wilczak, J., Grell, G., Djalalova, I., Peckham, S., Hsie, E.-Y., Gong, W., Bouchet, V., Menard, S., Moffet, R., McHenry, J., McQueen, J., Tang, Y., Carmichael, G. R., Pagowski, M., Chan, A., Dye, T., Frost, G., Lee, P., Mathur, R.

“…The real‐time forecasts of ozone (O3) from seven air quality forecast models (AQFMs) are statistically evaluated against observations collected during July and…”
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A new chemistry option in WRF-Chem v. 3.4 for the simulation of direct and indirect aerosol effects using VBS: evaluation against IMPACT-EUCAARI data by Tuccella, P, Curci, G, Grell, G. A, Visconti, G, Crumeyrolle, S, Schwarzenboeck, A, Mensah, A. A

“…A parameterization for secondary organic aerosol (SOA) production based on the volatility basis set (VBS) approach has been coupled with microphysics and…”
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Qualitative comparison of Mount Redoubt 2009 volcanic clouds using the PUFF and WRF-Chem dispersion models and satellite remote sensing data by Steensen, T., Stuefer, M., Webley, P., Grell, G., Freitas, S.

“…Satellite remote sensing data presents an important tool to map and analyze airborne volcanic ash, both spatially and temporally. However, such data only…”
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Sensitivity of feedback effects in CBMZ/MOSAIC chemical mechanism by San José, R., Pérez, J.L., Balzarini, A., Baró, R., Curci, G., Forkel, R., Galmarini, S., Grell, G., Hirtl, M., Honzak, L., Im, U., Jiménez-Guerrero, P., Langer, M., Pirovano, G., Tuccella, P., Werhahn, J., Žabkar, R.

“…To investigate the impact of the aerosol effects on meteorological variables and pollutant concentrations two simulations with the WRF-Chem model have been…”
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Evaluation of several PM2.5 forecast models using data collected during the ICARTT/NEAQS 2004 field study by McKeen, S., Chung, S. H., Wilczak, J., Grell, G., Djalalova, I., Peckham, S., Gong, W., Bouchet, V., Moffet, R., Tang, Y., Carmichael, G. R., Mathur, R., Yu, S.

“…Real‐time forecasts of PM2.5 aerosol mass from seven air quality forecast models (AQFMs) are statistically evaluated against observations collected in the…”
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Inclusion of ash and SO2 emissions from volcanic eruptions in WRF-Chem: development and some applications by Stuefer, M, Freitas, S R, Grell, G, Webley, P, Peckham, S, McKeen, S A, Egan, S D

“…We describe a new functionality within the Weather Research and Forecasting (WRF) model with coupled Chemistry (WRF-Chem) that allows simulating emission,…”
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