Rocky Mountain Atmospheric Nitrogen and Sulfur Study (ROMANS)

Background

Increases in reactive nitrogen deposition are a growing concern in the U.S. Rocky Mountain west. The Rocky Mountain Airborne Nitrogen and Sulfur (RoMANS I and II) studies were designed to improve understanding of the species and pathways that contribute to deposition in Rocky Mountain National Park.  Gas and particle concentrations were measured and precipitation samples were collected at multiple sites as part of this study.

Reports

ROMANS Report Volume 1

William C. Malm, et al., ISSN 0737-5352-84, October 2009.

ROMANS Report Volume 2

William C. Malm, et al., ISSN 0737-5352-84, October 2009.

Publications

Rocky Mountain National Park reduced nitrogen source apportionment

Thompson, T.M., M.A. Rodriguez, M.G. Barna, K.A. Gebhart, J.L. Hand, D.E. Day, W.C. Malm, K.B. Benedict, J.L. Collett Jr., and B.A. Schichtel, Journal of Geophysical Research – Atmospheres, 120, 4370-4384, doi: 10.1002/2014JD022675, 2015.

Meteorological and Back Trajectory Modeling for the Rocky Mountain Atmospheric Nitrogen and Sulfur Study II

Gebhart, K.A., W.C. Malm, M.A. Rodriguez, M.G. Barna, B.A. Schichtel, K.B. Benedict, J.L. Collett Jr., and C.M. Carrico, Advances in Meteorology, doi: 10.1155/2014/414015, 2014.

Aerosol species concentrations and source apportionment of ammonia at Rocky Mountain National Park

Malm, W.C., B.A. Schichtel, M.G. Barna, K.A. Gebhart, M.A. Rodriguez, J.L. Collett, Jr., C.M. Carrico, K.B. Benedict, A.J. Prenni, and S.M. Kreidenweis, Journal of the Air & Waste Management Association, 63, 1245–1263, doi: 10.1080/10962247.2013.804466, 2013.

Modeling the fate of atmospheric reduced nitrogen during the Rocky Mountain Atmospheric Nitrogen and Sulfur Study (RoMANS): Performance evaluation and diagnosis using integrated processes rate analysis

Rodriguez, M.A., M.G. Barna, K.A. Gebhart, J.L. Hand, Z.E. Adelman, B.A. Schichtel, J.L. Collett Jr., and W.C. Malm, Atmospheric Environment, 45, 223-234, doi: 10.1016/j.atmosenv.2010.09.011, 2011.

Back-trajectory-based source apportionment of airborne sulfur and nitrogen concentrations at Rocky Mountain National Park, Colorado, USA

Gebhart, K.A., B.A. Schichtel, W.C. Malm, M.G. Barna, M.A. Rodriguez, and J.L. Collett Jr., Atmospheric Environment, 45, 621-633, 10.1016/j.atmosenv.2010.10.035, 2011.

Deposition of reactive nitrogen during the Rocky Mountain Airborne Nitrogen and Sulfur (RoMANS) study

Beem, K.B., S. Raja, F.M. Schwandner, C. Taylor, T. Lee, A.P. Sullivan, C.M. Carrico, G.R. McMeeking, D. Day, E. Levin, J. Hand, S.M. Kreidenweis, B. Schichtel, W.C. Malm, and Jeffrey L. Collett Jr., Environmental Pollution, 158, 862-872, 10.1016/j.envpol.2009.09.023, 2010.

Aerosol physical, chemical and optical properties during the Rocky Mountain Airborne Nitrogen and Sulfur study

Levin, E.J.T., S.M. Kreidenweis, G.R. McMeeking, C.M. Carrico, J.L. Collett, Jr., and W.C. Malm, Atmospheric Environment, 43, 1932-1939, 10.1016/j.atmosenv.2008.12.042, 2009.