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Raymond Gabriel Najjar, Jr.

    • 6669 Citations
    • 35 h-Index
    1986 …2020

    Research output per year

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    Research Output

    2020

    Alkalinity in Tidal Tributaries of the Chesapeake Bay

    Najjar, R. G., Herrmann, M., Cintrón Del Valle, S. M., Friedman, J. R., Friedrichs, M. A. M., Harris, L. A., Shadwick, E. H., Stets, E. G. & Woodland, R. J., Jan 1 2020, In : Journal of Geophysical Research: Oceans. 125, 1, e2019JC015597.

    Research output: Contribution to journal › Article

    Carbon Deposition and Burial in Estuarine Sediments of the Contiguous United States

    Hutchings, J. A., Bianchi, T. S., Najjar, R. G., Herrmann, M., Kemp, W. M., Hinson, A. L. & Feagin, R. A., Feb 1 2020, In : Global Biogeochemical Cycles. 34, 2, e2019GB006376.

    Research output: Contribution to journal › Article

    Seasonal Variability of the CO2 System in a Large Coastal Plain Estuary

    Friedman, J. R., Shadwick, E. H., Friedrichs, M. A. M., Najjar, R. G., De Meo, O. A., Da, F. & Smith, J. L., Jan 1 2020, In : Journal of Geophysical Research: Oceans. 125, 1, e2019JC015609.

    Research output: Contribution to journal › Article

    Open Access

    Tidal Wetland Gross Primary Production Across the Continental United States, 2000–2019

    Feagin, R. A., Forbrich, I., Huff, T. P., Barr, J. G., Ruiz-Plancarte, J., Fuentes, J. D., Najjar, R. G., Vargas, R., Vázquez-Lule, A., Windham-Myers, L., Kroeger, K. D., Ward, E. J., Moore, G. W., Leclerc, M., Krauss, K. W., Stagg, C. L., Alber, M., Knox, S. H., Schäfer, K. V. R., Bianchi, T. S. & 9 others, Hutchings, J. A., Nahrawi, H., Noormets, A., Mitra, B., Jaimes, A., Hinson, A. L., Bergamaschi, B., King, J. S. & Miao, G., Feb 1 2020, In : Global Biogeochemical Cycles. 34, 2, e2019GB006349.

    Research output: Contribution to journal › Article

    2019

    Carbon cycling in the North American coastal ocean: A synthesis

    Fennel, K., Alin, S., Barbero, L., Evans, W., Bourgeois, T., Cooley, S., Dunne, J., Feely, R. A., Martin Hernandez-Ayon, J., Hu, X., Lohrenz, S., Muller-Karger, F., Najjar, R., Robbins, L., Shadwick, E., Siedlecki, S., Steiner, N., Sutton, A., Turk, D., Vlahos, P. & 1 others, Aleck Wang, Z., Mar 27 2019, In : Biogeosciences. 16, 6, p. 1281-1304 24 p.

    Research output: Contribution to journal › Article

    Open Access
    6 Scopus citations

    Estuarine Dissolved Organic Carbon Flux From Space: With Application to Chesapeake and Delaware Bays

    Signorini, S. R., Mannino, A., Friedrichs, M. A. M., St-Laurent, P., Wilkin, J., Tabatabai, A., Najjar, R. G., Hofmann, E. E., Da, F., Tian, H. & Yao, Y., Jun 2019, In : Journal of Geophysical Research: Oceans. 124, 6, p. 3755-3778 24 p.

    Research output: Contribution to journal › Article

    1 Scopus citations

    Evaluation of methods for selecting climate models to simulate future hydrological change

    Ross, A. C. & Najjar, R. G., Dec 1 2019, In : Climatic Change. 157, 3-4, p. 407-428 22 p.

    Research output: Contribution to journal › Article

    High-Frequency CO2 System Variability Over the Winter-to-Spring Transition in a Coastal Plain Estuary

    Shadwick, E. H., Friedrichs, M. A. M., Najjar, R. G., De Meo, O. A., Friedman, J. R., Da, F. & Reay, W. G., Nov 1 2019, In : Journal of Geophysical Research: Oceans. 124, 11, p. 7626-7642 17 p.

    Research output: Contribution to journal › Article

    2 Scopus citations

    Large Projected Decline in Dissolved Oxygen in a Eutrophic Estuary Due to Climate Change

    Ni, W., Li, M., Ross, A. C. & Najjar, R. G., Nov 1 2019, In : Journal of Geophysical Research: Oceans. 124, 11, p. 8271-8289 19 p.

    Research output: Contribution to journal › Article

    2 Scopus citations

    Ocean Circulation Causes Strong Variability in the Mid-Atlantic Bight Nitrogen Budget

    Friedrichs, M. A. M., St-Laurent, P., Xiao, Y., Hofmann, E., Hyde, K., Mannino, A., Najjar, R. G., Narváez, D. A., Signorini, S. R., Tian, H., Wilkin, J., Yao, Y. & Xue, J., Jan 2019, In : Journal of Geophysical Research: Oceans. 124, 1, p. 113-134 22 p.

    Research output: Contribution to journal › Article

    2 Scopus citations

    Seasonal and Interannual Variability in Net Ecosystem Production of a Subtropical Coastal Lagoon Inferred from Monthly Oxygen Surveys

    Seidensticker, L. E., Najjar, R. G., Herrmann, M., Boyer, J. N., Briceño, H. O., Kemp, W. M. & Tomaso, D. J., Mar 15 2019, In : Estuaries and Coasts. 42, 2, p. 455-469 15 p.

    Research output: Contribution to journal › Article

    2018

    A fiscally based scale for tropical cyclone storm surge

    Walker, A. M., Titley, D. W., Mann, M. E., Najjar, R. G. & Miller, S. K., Dec 1 2018, In : Weather and Forecasting. 33, 6, p. 1709-1723 15 p.

    Research output: Contribution to journal › Article

    1 Scopus citations

    Assessing Phytoplankton Nutritional Status and Potential Impact of Wet Deposition in Seasonally Oligotrophic Waters of the Mid-Atlantic Bight

    Sedwick, P. N., Bernhardt, P. W., Mulholland, M. R., Najjar, R. G., Blumen, L. M., Sohst, B. M., Sookhdeo, C. & Widner, B., Apr 16 2018, In : Geophysical Research Letters. 45, 7, p. 3203-3211 9 p.

    Research output: Contribution to journal › Article

    4 Scopus citations

    Carbon Budget of Tidal Wetlands, Estuaries, and Shelf Waters of Eastern North America

    Najjar, R. G., Herrmann, M., Alexander, R., Boyer, E. W., Burdige, D. J., Butman, D., Cai, W. J., Canuel, E. A., Chen, R. F., Friedrichs, M. A. M., Feagin, R. A., Griffith, P. C., Hinson, A. L., Holmquist, J. R., Hu, X., Kemp, W. M., Kroeger, K. D., Mannino, A., McCallister, S. L., McGillis, W. R. & 10 others, Mulholland, M. R., Pilskaln, C. H., Salisbury, J., Signorini, S. R., St-Laurent, P., Tian, H., Tzortziou, M., Vlahos, P., Wang, Z. A. & Zimmerman, R. C., Mar 2018, In : Global Biogeochemical Cycles. 32, 3, p. 389-416 28 p.

    Research output: Contribution to journal › Article

    34 Scopus citations

    Heat-Engine and Entropy-Production Analyses of the World Ocean

    Bannon, P. R. & Najjar, R. G., Nov 2018, In : Journal of Geophysical Research: Oceans. 123, 11, p. 8532-8547 16 p.

    Research output: Contribution to journal › Article

    1 Scopus citations

    Impact of climate change and climate anomalies on hydrologic and biogeochemical processes in an agricultural catchment of the Chesapeake Bay watershed, USA

    Wagena, M. B., Collick, A. S., Ross, A. C., Najjar, R. G., Rau, B., Sommerlot, A. R., Fuka, D. R., Kleinman, P. J. A. & Easton, Z. M., Oct 1 2018, In : Science of the Total Environment. 637-638, p. 1443-1454 12 p.

    Research output: Contribution to journal › Article

    16 Scopus citations

    Remote sensing retrievals of colored dissolved organic matter and dissolved organic carbon dynamics in North American estuaries and their margins

    Cao, F., Tzortziou, M., Hu, C., Mannino, A., Fichot, C. G., Del Vecchio, R., Najjar, R. G. & Novak, M., Feb 2018, In : Remote Sensing of Environment. 205, p. 151-165 15 p.

    Research output: Contribution to journal › Article

    27 Scopus citations
    2017

    Biogeochemical protocols and diagnostics for the CMIP6 Ocean Model Intercomparison Project (OMIP)

    Orr, J. C., Najjar, R. G., Aumont, O., Bopp, L., Bullister, J. L., Danabasoglu, G., Doney, S. C., Dunne, J. P., Dutay, J. C., Graven, H., Griffies, S. M., John, J. G., Joos, F., Levin, I., Lindsay, K., Matear, R. J., McKinley, G. A., Mouchet, A., Oschlies, A., Romanou, A. & 4 others, Schlitzer, R., Tagliabue, A., Tanhua, T. & Yool, A., Jun 9 2017, In : Geoscientific Model Development. 10, 6, p. 2169-2199 31 p.

    Research output: Contribution to journal › Article

    36 Scopus citations

    Fingerprints of Sea Level Rise on Changing Tides in the Chesapeake and Delaware Bays

    Ross, A. C., Najjar, R. G., Li, M., Lee, S. B., Zhang, F. & Liu, W., Oct 2017, In : Journal of Geophysical Research: Oceans. 122, 10, p. 8102-8125 24 p.

    Research output: Contribution to journal › Article

    17 Scopus citations

    Impacts of Atmospheric Nitrogen Deposition on Surface Waters of the Western North Atlantic Mitigated by Multiple Feedbacks

    St-Laurent, P., Friedrichs, M. A. M., Najjar, R. G., Martins, D. K., Herrmann, M., Miller, S. K. & Wilkin, J., Nov 2017, In : Journal of Geophysical Research: Oceans. 122, 11, p. 8406-8426 21 p.

    Research output: Contribution to journal › Article

    13 Scopus citations

    Salinity and streamflow variability in the Mid-Atlantic region of the United States and its relationship with large-scale atmospheric circulation patterns

    Schulte, J. A., Najjar, R. G. & Lee, S., Jul 1 2017, In : Journal of Hydrology. 550, p. 65-79 15 p.

    Research output: Contribution to journal › Article

    8 Scopus citations

    The spatial distribution of soil organic carbon in tidal wetland soils of the continental United States

    Hinson, A. L., Feagin, R. A., Eriksson, M., Najjar, R. G., Herrmann, M., Bianchi, T. S., Kemp, M., Hutchings, J. A., Crooks, S. & Boutton, T., Dec 2017, In : Global Change Biology. 23, 12, p. 5468-5480 13 p.

    Research output: Contribution to journal › Article

    25 Scopus citations
    2016

    A perspective on needed research, modeling, and management approaches that can enhance Great Lakes fisheries management under changing ecosystem conditions

    DeVanna Fussell, K. M., Smith, R. E. H., Fraker, M. E., Boegman, L., Frank, K. T., Miller, T. J., Tyson, J. T., Arend, K. K., Boisclair, D., Guildford, S. J., Hecky, R. E., Hӧӧk, T. O., Jensen, O. P., Llopiz, J. K., May, C. J., Najjar, R. G., Rudstam, L. G., Taggart, C. T., Rao, Y. R. & Ludsin, S. A., Aug 1 2016, In : Journal of Great Lakes Research. 42, 4, p. 743-752 10 p.

    Research output: Contribution to journal › Comment/debate

    7 Scopus citations

    Dissolved organic carbon fluxes in the Middle Atlantic Bight: An integrated approach based on satellite data and ocean model products

    Mannino, A., Signorini, S. R., Novak, M. G., Wilkin, J., Friedrichs, M. A. M. & Najjar, R. G., Feb 2016, In : Journal of Geophysical Research: Biogeosciences. 121, 2, p. 312-336 25 p.

    Research output: Contribution to journal › Article

    12 Scopus citations

    Spatial and temporal variability of ground and satellite column measurements of NO2 and O3 over the atlantic ocean during the deposition of atmospheric nitrogen to coastal ecosystems experiment

    Martins, D. K., Najjar, R. G., Tzortziou, M., Abuhassan, N., Thompson, A. M. & Kollonige, D. E., Dec 16 2016, In : Journal of Geophysical Research. 121, 23, p. 14,175-14,187

    Research output: Contribution to journal › Article

    5 Scopus citations

    The influence of climate modes on streamflow in the Mid-Atlantic region of the United States

    Schulte, J. A., Najjar, Jr., R. G. & Li, M., Mar 1 2016, In : Journal of Hydrology: Regional Studies. 5, p. 80-99 20 p.

    Research output: Contribution to journal › Article

    20 Scopus citations
    2015

    A coupled surface-subsurface modeling framework to assess the impact of climate change on freshwater wetlands

    Yu, X., Bhatt, G., Duffy, C. J., Wardrop, D. H., Najjar, R. G., Ross, A. C. & Rydzik, M., Jan 1 2015, In : Climate Research. 66, 3, p. 211-228 18 p.

    Research output: Contribution to journal › Article

    8 Scopus citations

    Anthropogenic and climatic influences on carbon fluxes from eastern North America to the Atlantic Ocean: A process-based modeling study

    Tian, H., Yang, Q., Najjar, R. G., Ren, W., Friedrichs, M. A. M., Hopkinson, C. S. & Pan, S., Apr 1 2015, In : Journal of Geophysical Research: Biogeosciences. 120, 4, p. 752-772 21 p.

    Research output: Contribution to journal › Article

    47 Scopus citations

    Geometric and topological approaches to significance testing in wavelet analysis

    Schulte, J. A., Duffy, C. & Najjar, R. G., Mar 10 2015, In : Nonlinear Processes in Geophysics. 22, 2, p. 139-156 18 p.

    Research output: Contribution to journal › Article

    13 Scopus citations

    Increased nitrogen export from eastern North America to the Atlantic Ocean due to climatic and anthropogenic changes during 1901-2008

    Yang, Q., Tian, H., Friedrichs, M. A. M., Hopkinson, C. S., Lu, C. & Najjar, R. G., Jan 1 2015, In : Journal of Geophysical Research G: Biogeosciences. 120, 6, p. 1046-1068 23 p.

    Research output: Contribution to journal › Article

    28 Scopus citations

    Long-term variations in the dissolved oxygen budget of an urbanized tidal river: The upper Delaware Estuary

    Tomaso, D. J. & Najjar, Jr., R. G., Jan 1 2015, In : Journal of Geophysical Research G: Biogeosciences. 120, 6, p. 1027-1045 19 p.

    Research output: Contribution to journal › Article

    2 Scopus citations

    Net ecosystem production and organic carbon balance of U.S. East Coast estuaries: A synthesis approach

    Herrmann, M., Najjar, R. G., Kemp, W. M., Alexander, R. B., Boyer, E. W., Cai, W. J., Griffith, P. C., Kroeger, K. D., McCallister, S. L. & Smith, R. A., Jan 2015, In : Global Biogeochemical Cycles. 29, 1, p. 96-111 16 p.

    Research output: Contribution to journal › Article

    51 Scopus citations

    Sea-level rise and other influences on decadal-scale salinity variability in a coastal plain estuary

    Ross, A. C., Najjar, R. G., Li, M., Mann, M. E., Ford, S. E. & Katz, B., May 5 2015, In : Estuarine, Coastal and Shelf Science. 157, p. 79-92 14 p.

    Research output: Contribution to journal › Article

    25 Scopus citations
    2014

    Available energy of the world ocean

    Bannon, P. R. & Najjar, R. G., Jun 27 2014, In : Journal of Marine Research. 72, 4, p. 219-242 24 p.

    Research output: Contribution to journal › Article

    1 Scopus citations

    Influence of precipitation events on phytoplankton biomass in coastal waters of the eastern United States

    Kim, T. W., Najjar, R. G. & Lee, K., Jan 2014, In : Global Biogeochemical Cycles. 28, 1, p. 1-13 13 p.

    Research output: Contribution to journal › Article

    11 Scopus citations

    Understanding coastal carbon cycling by linking top-down and bottom-up approaches

    Barr, J. G., Troxler, T. G. & Najjar, R. G., Sep 2 2014, In : Eos. 95, 35, 1 p.

    Research output: Contribution to journal › Review article

    2013

    Surface ocean pCO2 seasonality and sea-air CO2 flux estimates for the North American east coast

    Signorini, S. R., Mannino, A., Najjar, R. G., Friedrichs, M. A. M., Cai, W. J., Salisbury, J., Wang, Z. A., Thomas, H. & Shadwick, E., Oct 2013, In : Journal of Geophysical Research: Oceans. 118, 10, p. 5439-5460 22 p.

    Research output: Contribution to journal › Article

    53 Scopus citations
    2012

    Climate science and the broadcast meteorologist

    Nese, J. M., Najjar, R. G. & Murgo, J. G., Dec 1 2012, In : Bulletin of the American Meteorological Society. 93, 12, p. 1913-1916 4 p.

    Research output: Contribution to journal › Article

    1 Scopus citations

    Diagnostic modeling of dimethylsulfide production in coastal water west of the Antarctic Peninsula

    Herrmann, M., Najjar, R. G., Neeley, A. R., Vila-Costa, M., Dacey, J. W. H., DiTullio, G. R., Kieber, D. J., Kiene, R. P., Matrai, P. A., Simó, R. & Vernet, M., Jan 1 2012, In : Continental Shelf Research. 32, p. 96-109 14 p.

    Research output: Contribution to journal › Article

    15 Scopus citations

    Probabilistic projections of anthropogenic climate change impacts on precipitation for the mid-Atlantic region of the United States

    Ning, L., Mann, M. E., Crane, R., Wagener, T., Najjar, R. G. & Singh, R., Aug 1 2012, In : Journal of Climate. 25, 15, p. 5273-5291 19 p.

    Research output: Contribution to journal › Article

    22 Scopus citations
    2011

    Constraints on Lake Agassiz discharge through the late-glacial Champlain Sea (St. Lawrence Lowlands, Canada) using salinity proxies and an estuarine circulation model

    Katz, B., Najjar, R. G., Cronin, T., Rayburn, J. & Mann, M. E., Nov 1 2011, In : Quaternary Science Reviews. 30, 23-24, p. 3248-3257 10 p.

    Research output: Contribution to journal › Article

    8 Scopus citations

    Increasing N abundance in the northwestern pacific ocean due to atmospheric nitrogen deposition

    Kim, T. W., Lee, K., Najjar, R. G., Jeong, H. D. & Jeong, H. J., Oct 28 2011, In : Science. 334, 6055, p. 505-509 5 p.

    Research output: Contribution to journal › Article

    142 Scopus citations

    Modeling the dynamics of continental shelf carbon

    Hofmann, E. E., Cahill, B., Fennel, K., Friedrichs, M. A. M., Hyde, K., Lee, C., Mannino, A., Najjar, R. G., O'Reilly, J. E., Wilkin, J. & Xue, J., Dec 1 2011, In : Annual Review of Marine Science. 3, p. 93-122 30 p.

    Research output: Contribution to journal › Article

    58 Scopus citations

    Potential impacts of sea-level rise on the Atlantic and the gulf of Mexico Coast of the United States

    Wu, S. Y. & Najjar, R., Dec 1 2011, Sea Level Rise, Coastal Engineering, Shorelines and Tides. Nova Science Publishers, Inc., p. 123-137 15 p.

    Research output: Chapter in Book/Report/Conference proceeding › Chapter

    2010

    Potential climate-change impacts on the Chesapeake Bay

    Najjar, R. G., Pyke, C. R., Adams, M. B., Breitburg, D., Hershner, C., Kemp, M., Howarth, R., Mulholland, M. R., Paolisso, M., Secor, D., Sellner, K., Wardrop, D. & Wood, R., Jan 1 2010, In : Estuarine, Coastal and Shelf Science. 86, 1, p. 1-20 20 p.

    Research output: Contribution to journal › Article

    279 Scopus citations
    2009

    Climate simulations of major estuarine watersheds in the Mid-Atlantic region of the US

    Najjar, R., Patterson, L. & Graham, S., Jul 1 2009, In : Climatic Change. 95, 1-2, p. 139-168 30 p.

    Research output: Contribution to journal › Article

    56 Scopus citations

    Household heating and cooling energy use in the northeast usa: Comparing the effects of climate change with those of purposive behaviors

    Shorr, N., Najjar, R. G., Amato, A. & Graham, S., Jun 18 2009, In : Climate Research. 39, 1, p. 19-30 12 p.

    Research output: Contribution to journal › Article

    9 Scopus citations

    Oceanography: The dark side of marine carbon

    Najjar, Jr., R. G., Sep 1 2009, In : Nature Geoscience. 2, 9, p. 603-604 2 p.

    Research output: Contribution to journal › Article

    2 Scopus citations

    Potential impacts of sea-level rise on the Mid- and Upper-Atlantic Region of the United States

    Wu, S. Y., Najjar, R. & Siewert, J., Jul 1 2009, In : Climatic Change. 95, 1-2, p. 121-138 18 p.

    Research output: Contribution to journal › Article

    38 Scopus citations

    "Weather in a tank": Exploiting laboratory experiments in the teaching of meteorology, oceanography, and climate

    Illari, L., Marshall, J., Bannon, P., Botella, J., Clark, R., Haine, T., Kumar, A., Lee, S., Mackin, K. J., Mckinley, G. A., Morgan, M., Najjar, R., Sikora, T. & Tandon, A., Dec 1 2009, In : Bulletin of the American Meteorological Society. 90, 11, p. 1619-1632 14 p.

    Research output: Contribution to journal › Article

    12 Scopus citations