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Exposure Research

Records 1 to 41 of 41
2015
Mallard, M., Chris Nolte, T. Spero, R. Bullock, Kiran Alapaty, J. Herwehe, J. Gula, AND J. Bowden. Technical Challenges and Solutions in Representing Lakes when using WRF in Downscaling Applications. Geoscientific Model Development . Copernicus Publications, Katlenburg-Lindau, Germany, 8(4):939-1110, (2015).
2014
Bullock, R., Kiran Alapaty, J. Herwehe, M. Mallard, T. Otte, R. Gilliam, AND Chris Nolte. An Observation-base investigation of nudging in WRF for downscaling surface climate information to 12-km Grid Spacing. JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY. American Meteorological Society, Boston, MA, 53(1):20-33, (2014).
Mallard, M., C. Nolte, R. Bullock, T. Otte, AND J. Gula. Using a Coupled Lake Model with WRF for Dynamical Downscaling. JOURNAL OF GEOPHYSICAL RESEARCH. American Geophysical Union, Washington, DC, 119(12):7193-7208, (2014).
Mallard, M., Chris Nolte, R. Bullock, T. Otte, AND J. Gula. Using a Freshwater Lake Model Coupled with WRF for Dynamical Downscaling Applications. Presented at AMS Annual Meeting, Atlanta, GA, February 04 - 05, 2014.
2013
Mallard, M., Chris Nolte, R. Bullock, T. Otte, J. Herwehe, Kiran Alapaty, AND J. Gula. "The Effect of Alternative Representations of Lake Temperatures and Ice on WRF Regional Climate Simulations". Presented at 12th Annual CMAS Conference, Chapel Hill, NC, October 28 - 30, 2013.
Herwehe, J., Kiran Alapaty, T. Otte, Chris Nolte, AND R. Bullock. Evaluation of cumulus cloud – radiation interaction effects on air quality –relevant meteorological variables from WRF, from a regional climate perspective. Presented at 12th Annual CMAS Conference, Chapel Hill, NC, October 28 - 30, 2013.
Myers, T., D. Atkinson, R. Bullock, AND J. Bash. Investigation of Effects of Varying Model Inputs on Mercury Deposition Estimates in the Southwest US. Atmospheric Chemistry and Physics. Copernicus Publications, Katlenburg-Lindau, Germany, 13(2):997-1009, (2013).
Alapaty, Kiran, R. Bullock, J. Herwehe, R. Gilliam, C. Nolte, T. Otte, J. Kain, AND J. Dudhia. The Kain-Fritsch Scheme: Science Updates & Revisiting Gray-Scale Issues from the NWP & Regional Climatae Perspectives. Presented at Annual Wolf Workshop, Boulder, Co, June 23 - 28, 2013.
2012
Alapaty, Kiran, J. Herwehe, T. Otte, C. Nolte, R. Bullock, M. Mallard, J. Kain, AND J. Dudhia. Introducing Subrid-scale Cloud Feedbacks to Radiation for Regional Meteorological and Cllimate Modeling. GEOPHYSICAL RESEARCH LETTERS. American Geophysical Union, Washington, DC, 39(24):1-5, (2012).
2011
MATHUR, R., R. C. GILLIAM, R. BULLOCK, S. J. ROSELLE, J. E. PLEIM, D. C. WONG, F. S. BINKOWSKI, AND D. G. STREETS. Extending the Applicability of the Community Multiscale Air Quality Model to Hemispheric Scales: Motivation, Challenges, and Progress. Chapter 30, Douw G. Steyn & Silvia Trini Gastelli (ed.), NATO/SPS/ITM Air Pollution Modeling and its Application XXI. Springer Netherlands, , Netherlands, C Series:175-179, (2011).
2009
BULLOCK, R., D. ATKINSON, T. BRAVERMAN, K. Civerolo, A. Dastoor, D. Davignon, J. Ku, K. Lohman, T. MYERS, R. J. Park, C. SEIGNEUR, N. E. SELIN, G. Sistla, AND K. Vijayaraghavan. An Analysis of Simulated Wet Deposition of Mercury from the North American Mercury Model Intercomparison Study. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES. American Geophysical Union, Washington, DC, 114(D08301):1-12, (2009).
BULLOCK, R. AND L. Jaegle. Importance of a Global Approach to Using Regional Models in the Assessment of Source-Receptor Relationships of Mercury. Chapter 16, N. Pirrone, R. Mason (ed.), Mercury Fate and Transport in the Global Atmosphere: Measurement, models and policy implications. Springer-Verlag, Berlin, Germany, Chapter 16:503-517, (2009).
2008
PONGPRUEKSA, P., C. LIN, S. LINDBERG, C. JANG, T. BRAVERMAN, R. BULLOCK, T. C. HO, AND H. CHU. SCIENTIFIC UNCERTAINTIES IN ATMOSPHERIC MERCURY MODELS III: BOUNDARY AND INITIAL CONDITIONS, MODEL GRID RESOLUTION, AND HG(II) REDUCTION MECHANISMS. ATMOSPHERIC ENVIRONMENT. Elsevier Science Ltd, New York, NY, 42(8):1828-1845, (2008).
BULLOCK, R. The Effect of Lateral Boundary Values on Atmospheric Mercury Simulations with the CMAQ Model. Chapter 2, Carlos Borrego; Ana Isabel Miranda (ed.), Air Pollution Modeling and its Application XIX. Springer, New York, NY, (Series C):173-181, (2008).
BULLOCK, R., D. ATKINSON, T. BRAVERMAN, K. Civerolo, A. Dastoor, D. Davignon, J. Ku, K. Lohman, T. C. Meyer, R. J. Park, C. Seigneur, N. E. SELIN, G. Sistla, AND K. Vijayaraghavan. The North American Mercury Model Intercomparison Study (NAMMIS). Study Description and Model-to-Model Comparison. JOURNAL OF GEOPHYSICAL RESEARCH. American Geophysical Union, Washington, DC, 113(D17310):1-17, (2008).
2007
LINDBERG, S., R. BULLOCK, R. EBINGHAUS, D. ENGSTROM, X. FENG, W. F. FITZGERALD, N. PIRONNE, E. PRESTBO, AND C. SEIGNEUR. A SYNTHESIS OF PROGRESS AND UNCERTAINTIES IN ATTRIBUTING THE SOURCES OF MERCURY IN DEPOSITION. AMBIO. Royal Swedish Academy of Sciences, Stockholm, Sweden, 36(1):19-32, (2007).
RYABOSHAPKO, A., R. BULLOCK, J. CHRISTENSEN, M. COHEN, A. DASTOOR, I. ILYIN, G. PETERSEN, D. SYRAKOV, R. S. ARTZ, D. DAVIGNON, R. R. DRAXLER, AND J. MUNTHE. INTERCOMPARISON STUDY OF ATMOSPHERIC MERCURY MODELS: 1. COMPARISON OF MODELS WITH SHORT-TERM MEASUREMENTS. SCIENCE OF THE TOTAL ENVIRONMENT. Elsevier Science Ltd, New York, NY, 376(1-3):228-240, (2007).
RYABOSHAPKO, A., R. BULLOCK, J. CHRISTENSEN, M. COHEN, A. DASTOOR, I. ILYIN, G. PETERSEN, D. SYRAKOV, R. S. ARTZ, D. DAVIGNON, R. R. DRAXLER, AND J. MUNTHE. INTERCOMPARISON STUDY OF ATMOSPHERIC MERCURY MODELS: 2. MODELING RESULTS VS. LONG-TERM OBSERVATIONS AND COMPARISON OF COUNTRY ATMOSPHERIC BALANCES. SCIENCE OF THE TOTAL ENVIRONMENT. Elsevier Science Ltd, New York, NY, 377(2-3):319-333, (2007).
LIN, C., P. PONGPRUEKSA, R. BULLOCK, S. LINDBERG, S. O. PEHKONEN, C. JANG, T. BRAVERMAN, AND T. C. HO. SCIENTIFIC UNCERTAINTIES IN ATMOSPHERIC MERCURY MODELS II: SENSITIVITY ANALYSIS IN THE CONUS DOMAIN. ATMOSPHERIC ENVIRONMENT. Elsevier Science Ltd, New York, NY, 41(31):6544-6560, (2007).
2006
BULLOCK, R. REGIONAL-SCALE ATMOSPHERIC MERCURY MODELING. Presented at 31st Annual EPA-AWMA Information Exchange, Research Triangle Park, NC, December 05, 2006.
BULLOCK, R., K. LOHMAN, C. SEIGNEUR, K. VIJAYARAGHAVAN, A. DASTOOR, D. DAVIGNON, N. E. SELIN, D. J. JACOB, T. MYERS, K. CIVEROLO, C. HOGREFE, J. KU, G. SISTLA, D. ATKINSON, AND T. BRAVERMAN. RESULTS FROM THE NORTH AMERICAN MERCURY MODEL INTER-COMPARISON STUDY (NAMMIS). Presented at 8th International Conference on Mercury, Madison, WI, August 06 - 11, 2006.
BULLOCK, R. AND T. BRAVERMAN. SENSITIVITY OF THE CMAQ MERCURY MODEL TO GAS-PHASE OXIDATION CHEMISTRY. Presented at 8th International Conference on Mercury, Madison, WI, August 06 - 11, 2006.
HOGREFE, C., S.T. RAO, R. BULLOCK, A. GILLILAND, AND P. L. KINNEY. SIMULATING REGIONAL-SCALE AIR QUALITY WITH DYNAMIC CHANGES IN REGIONAL CLIMATE AND CHEMICAL BOUNDARY CONDITIONS. Presented at International Conference on Mesoscale Processes in Atmosphere, Ocean and Environmental Systems (IMPA 2006), New Delhi, INDIA, February 14 - 17, 2006.
PLEIM, J. E., S. J. ROSELLE, P. BHAVE, R. BULLOCK, W. T. HUTZELL, D. J. LUECKEN, C. G. NOLTE, K. L. SCHERE, J. O. YOUNG, J. M. GODOWITCH, AND W. APPEL. THE 2006 CMAQ RELEASE AND PLANS FOR 2007. Presented at 5rh Annual CMAS Models-3 User's Conference, Chapel Hill, NC, October 16 - 18, 2006.
BULLOCK, R., D. ATKINSON, T. BRAVERMAN, A. DASTOOR, D. DAVIGNON, N. ECKLEY-SELIN, D. JACOB, K. LOHMAN, C. SEIGNEUR, K. VIJAYARAGHAVAN, T. MYERS, K. CIVEROLO, AND C. HOGREFE. THE NORTH AMERICAN MERCURY MODEL INTER-COMPARISON STUDY (NAMMIS). Presented at 28th NATO/CCMS International Technical Meeting, Leipzig, GERMANY, May 15 - 19, 2006.
2005
BULLOCK, R. ATMOSPHERIC MERCURY TRANSPORT AND DEPOSITION. Presented at 2005 Air Toxics Workshop, RTP, NC, March 31, 2005.
BULLOCK, R. MODELING TRANSPORT AND TRANSFORMATION OF HG COMPOUNDS IN CONTINENTAL AIR MASSES. Chapter 14, Dynamics of Mercury Pollution on Regional and Global Scales. Springer Science and Business Media B.V;Formerly Kluwer Academic Publishers B.V., , Germany, , 319-344, (2005).
Mason, R. P., M. L. Abbott, D. Bodaly, O R. Bullock, C. T. Driscoll, D. Evers, S. E. Lindberg, M. Murray, AND E. Swain. MONITORING THE RESPONSE TO CHANGING MERCURY DEPOSITION. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 1:15A-22A, (2005).
2004
Bullock, O R. AQUEOUS REDUCTION OF HG2+ TO HG0 BY HO2 IN THE CMAQ MODEL. Presented at International Conference on Mercury as a Global Pollutant, Ljubljana, Slovenia, June 27-July 2, 2004.
Bullock, O R. AQUEOUS REDUCTION OF HG2+ TO HG0 BY HO2 IN THE CMAQ-MODEL. Presented at International Conference on Mercury as a Global Pollutant, Ljubljana, Slovinia, June 27-July 2, 2004.
Bullock, O R. ATMOSPHERIC CHEMISTRY AND THE RELATIVE IMPORTANCE OF MERCURY SOURCES. Presented at USGS 2004 Mercury Workshop, Reston, VA, August 17-18, 2004.
Bullock, O R. MODELING ATMOSPHERIC MERCURY IN CONTINENTAL AIR MASSES. Presented at International Workshop on Harmonization of Mercury Measurements Methods & Models to Assess Source-Receptors Impact on Air Quality & Human Health, Maratea, Italy, May 23-26, 2004.
2002
Bullock, O R. AND K. A. Brehme. ATMOSPHERIC MERCURY SIMULATION USING THE CMAQ MODEL: FORMULATION DESCRIPTION AND ANALYSIS OF WET DEPOSITION RESULTS. ATMOSPHERIC ENVIRONMENT 36(13):2135-2146, (2002).
2000
Bullock, O R. CURRENT METHODS AND RESEARCH STRATEGIES FOR MODELING ATMOSPHERIC MERCURY. FUEL PROCESSING TECHNOLOGY 65-66:459-471, (2000).
Bullock, O R. THE IMPORTANCE OF EMISSIONS SPECIATION TO THE ATMOSPHERIC TRANSPORT AND DEPOSITION OF MERCURY. Presented at EPA Conference on Assessing and Managing mercury from Historic and Current Mining Activities, San Francisco, CA, November 28-30, 2000.
1999
Bullock, O R. MERCURY MODELING AND MEASUREMENTS AND THEIR SOURCE CONTROL IMPLICATIONS. Presented at 1999 POP and Heavy Metals Workshop, Durham, NC, October 10-11, 1999.
Lunetta, R S., R Araujo, S L. Bird, L A. Burns, O R. Bullock, D. E. Carpenter, R. F. Carsel, K Endres, B H. Hill, K B. Jones, D J. Luecken, AND R G. Zepp. MID-ATLANTIC STRESSOR PROFILE ATLAS. U.S. Environmental Protection Agency, Washington, DC, EPA/600/C-99/003 (NTIS PB2002-101930), 1999.
Bullock, O R. MODELING ASSESSMENT OF TRANSPORT AND DEPOSITION PATTERNS OF MERCURY AIR EMISSIONS FROM THE U.S. AND CANADA. Presented at 5th International Conference on Mercury as a Global Pollutant, Rio de Janeiro, Brazil, May 23-28, 1999.
1998
Franson, S E., G P. Toth, R. VanRemortel, O R. Bullock, D J. Luecken, R G. Zepp, AND S L. Bird. AN APPROACH TO THE ASSESSMENT OF THE EXPOSURE OF FORESTS TO MULTIPLE STRESSORS. Presented at SETAC, Seattle, WA, Aug. 17, 1998.
Bullock, O R., K. A. Brehme, AND G. Mapp. LAGRANGIAN MODELING OF MERCURY AIR EMISSION, TRANSPORT AND DEPOSITION: AN ANALYSIS OF MODEL SENSITIVITY TO EMISSIONS UNCERTAINTY. SCIENCE OF THE TOTAL ENVIRONMENT 213:1-12, (1998).
1995
Bullock, O R., W G. Benjey, AND M. H. Keating. THE MODELING OF REGIONAL-SCALE ATMOSPHERIC MERCURY TRANSPORT AND DEPOSITION USING RELMAP. 15th Annual Meeting of SETAC, Denver, CO, Oct. 3 - Nov 3, 1994.


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