Lewis Gramer

Research Interests

Physical oceanographic processes affecting tropical cyclone intensity.

Applications of novel artificial intelligence and statistical techniques to geophysical data analysis.

Lewis (Lew) Gramer, Ph.D.

Associate Scientist (University of Miami/CIMAS), Hurricane Research Division

305.361.4554

Lew.Gramer@noaa.gov

4301 Rickenbacker Causeway
Miami, Florida 33149

About

Dr. Lewis (Lew) Gramer is an associate scientist at NOAA’s Atlantic Oceanographic and Meteorological Laboratory (AOML). His research involves a range of topics related to how ocean dynamics impact the rest of the natural world. In his current research, Dr. Gramer aims to better understand the interaction of coastal ocean downwelling and vertical ocean mixing with hurricane intensity and storm structure.

Current Work & CV

Current Work

Impacts of coastal ocean downwelling and vertical ocean mixing on hurricane intensity and storm structure.

Hurricane forecast model transitions to operations.

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Education

2013, Ph.D. Physical Oceanography, University of Miami – Rosenstiel School of Marine and Atmospheric Science, Miami, FL

1990, S.B. Mathematics, Massachusetts Institute of Technology, Cambridge, MA

Publications

Gramer, L.J., M. Soden, and J.C. Hendee. Operational ecoforecasting for coral reefs using artificial intelligence and integrated near real-time environmental data. Bulletin of Marine Science, 99(3):379-394, https://doi.org/10.5343/bms.2022.0012 2023
Ref. 4269
Hazelton, A., G.J. Alaka, Jr., L. Gramer, W. Ramstrom, S. Ditchek, X. Chen, B. Liu, Z. Zhang, L. Zhu, W. Wang, B. Thomas, J.H. Shin, C.-K. Wang, H.-S. Kim, X. Zhang, A. Mehra, F. Marks, and S. Gopalakrishnan. 2022 real-time hurricane forecasts from an experimental version of the Hurricane Analysis and Forecast System (HAFSV0.3S) Frontiers in Earth Science, 11:1264969, https://doi.org/10.3389/feart.2023.1264969 2023
Ref. 4331
Poyer, A., W. Komaromi, S. Gopalakrishnan, L. Wolf, F. Marks, G. Alaka Jr., J. Anderson, V. Tallapragada, M. Brennan, A. Mehra, X. Zhang, Z. Zhang, A. Hazelton, D.A. Zelinsky, J.L. Franklin, A. Aksoy, C. Alexander, M. Bender, L. Bernardet, M. Biswas, J. Cangialosi, M. DeMaria, R. Dunlap, M. Ek, G. Eosco, L. Gramer, L. Harris, J.S. Hilderbrand, E. Kalina, H.-S. Kim, P. Kucera, B. Liu, P. McCaslin, T. Marchok, J. Moskaitis, K. Musgrave, L. Nance, K. Newman, M. Onderlinde, W. Ramstrom, D. Rosen, J. Sims, J. Sippel, D. Stern, R. Torn, X. Wang, W. Wang, Y. Weng, B.C. Zachry, C. Zhang, M. Zhang, and L. Zhu. 2021-2022 HFIP R&D activities summary: Recent results and operational implementation. HFIP Technical Report, HFIP-2023-1, 73 pp., https://doi.org/10.25923/exgj-1n68 2023
Ref. 4413

View all Related Publications

Gramer, L.J., M. Soden, and J.C. Hendee. Operational ecoforecasting for coral reefs using artificial intelligence and integrated near real-time environmental data. Bulletin of Marine Science, 99(3):379-394, https://doi.org/10.5343/bms.2022.0012 2023
Ref. 4269
Hazelton, A., G.J. Alaka, Jr., L. Gramer, W. Ramstrom, S. Ditchek, X. Chen, B. Liu, Z. Zhang, L. Zhu, W. Wang, B. Thomas, J.H. Shin, C.-K. Wang, H.-S. Kim, X. Zhang, A. Mehra, F. Marks, and S. Gopalakrishnan. 2022 real-time hurricane forecasts from an experimental version of the Hurricane Analysis and Forecast System (HAFSV0.3S) Frontiers in Earth Science, 11:1264969, https://doi.org/10.3389/feart.2023.1264969 2023
Ref. 4331
Poyer, A., W. Komaromi, S. Gopalakrishnan, L. Wolf, F. Marks, G. Alaka Jr., J. Anderson, V. Tallapragada, M. Brennan, A. Mehra, X. Zhang, Z. Zhang, A. Hazelton, D.A. Zelinsky, J.L. Franklin, A. Aksoy, C. Alexander, M. Bender, L. Bernardet, M. Biswas, J. Cangialosi, M. DeMaria, R. Dunlap, M. Ek, G. Eosco, L. Gramer, L. Harris, J.S. Hilderbrand, E. Kalina, H.-S. Kim, P. Kucera, B. Liu, P. McCaslin, T. Marchok, J. Moskaitis, K. Musgrave, L. Nance, K. Newman, M. Onderlinde, W. Ramstrom, D. Rosen, J. Sims, J. Sippel, D. Stern, R. Torn, X. Wang, W. Wang, Y. Weng, B.C. Zachry, C. Zhang, M. Zhang, and L. Zhu. 2021-2022 HFIP R&D activities summary: Recent results and operational implementation. HFIP Technical Report, HFIP-2023-1, 73 pp., https://doi.org/10.25923/exgj-1n68 2023
Ref. 4413
Dobbelaere, T., D.M. Holstein, E.M. Muller, L.J. Gramer, L. McEachron, S.D. Williams, and E. Hanert. Connecting the dots: Transmission of stony coral tissue loss disease from the Marquesas to the Dry Tortugas. Frontiers in Marine Science, 9:778938, https://doi.org/10.3389/fmars.2022.778938 2022
Ref. 4076
Gramer, L.J., J.A. Zhang, G. Alaka, A. Hazelton, and S. Gopalakrishnan. Coastal downwelling intensifies landfalling hurricanes. Geophysical Research Letters, 49(13):e2021GL096630 , https://doi.org/10.1029/2021GL096630 2022
Ref. 4120
Hazelton, A., K. Gao, M. Bender, L. Cowan, G.J. Alaka Jr., A. Kaltenbaugh, L. Gramer, X. Zhang, L. Harris, T. Marchok, M. Morin, A. Mehra, Z. Zhang, B. Liu, and F. Marks. Performance of 2020 real-time Atlantic hurricane forecasts from high-resolution global-nested hurricane models: HAFS-globalnest and GFDL T-SHiELD. Weather and Forecasting, 37(1):143-161, https://doi.org/10.1175/WAF-D-21-0102.1 2022
Ref. 4041
Alaka, G.J., D. Sheinin, B. Thomas, L. Gramer, Z. Zhang, B. Liu, H.-S. Kim, and A. Mehra. A hydrodynamical atmosphere/ocean coupled modeling system for multiple tropical cyclones. Atmosphere, 11(8):869, https://doi.org/10.3390/atmos11080869 2020
Ref. 3844
Dobbelaere, T., E.M. Muller, L.J. Gramer, D.M. Holstein, and E. Hanert. Coupled epidemio-hydrodynamic modeling to understand the spread of a deadly coral disease in Florida. Frontiers in Marine Science, 7:591881, https://doi.org/10.3389/fmars.2020.591881 2020
Ref. 3907
Gopalakrishnan, S., D. Koch, S. Upadhayay, M. DeMaria, F. MARKS, E.N. Rappaport, A. Mehra, V. Tallapragada, Y. Jung, G. Alaka, C. Alexander, M. Bender, L. Bernardet, M. Biswas, T. Black, M. Brennan, J. Cangialosi, J. Dong, R. Dunlap, M. Ek, J.L. Franklin, L. Gramer, G. Hallliwell, L. Harris, A. Hazelton, J.S. Hilderbrand, E. Kalina, H.S. Kim, P. Kucera, N. Lett, B. Liu, T. Marchok, P. McCaslin, K. Musgrave, L. Nance, K. Newman, M. Onderlinde, A. Penny, W. Ramstrom, J. Sippel, R. Torn, X. Wang, W. Wang, J. Whitaker, H. Winterbottom, D.A. Zelinsky, F. Zhang, C. Zhang, X. Zhang, Z. Zhang, and L. Zhu. 2019 Hurricane Forecast Improvement Project R&D activities summary: Recent results and operational implementation. HFIP Technical Report, HFIP2020-1, 45 pp., https://doi.org/10.25923/qzd3-m787 2020
Ref. 3876
Hendee, J., N. Amornthammarong, L. Gramer, and A. Gomez. A novel low-cost, high-precision sea temperature sensor for coral reef monitoring. Bulletin of Marine Science, 96(1):97-110, https://doi.org/10.5343/bms.2019.0050 2020
Ref. 3718
Johns, E.M., R. Lumpkin, N.F. Putman, R.H. Smith, F.E. Muller-Karger, D. Rueda-Roa, C. Hu, M. Wang, M.T. Brooks, L.J. Gramer, and F. E. Werner. The establishment of a pelagic Sargassum population in the tropical Atlantic: Biological consequences of a basin-scale long distance dispersal event. Progress in Oceanography, 182:102269, https://doi.org/10.1016/j.pocean.2020.102269 2020
Ref. 3768
Obura, D.O., G. Aeby, N. Amornthammarong, W. Appeltans, N. Bax, J. Bishop, R.E. Brainard, S. Chan, P. Fletcher, T.A.C. Gordon, L. Gramer, M. Gudka, J. Halas, J. Hendee, G. Hodgson, D. Huang, M. Jankulak, A. Jones, T. Kimura, J. Levy, P. Miloslavich, L. Ming Chou, F.E. Muller-Karger, K. Osuka, M. Samoilys, S.D. Simpson, K. Tun, and S. Wongbusarakum. Coral reef monitoring, reef assessment technologies, and ecosystem-based management. Frontiers in Marine Science, 6:580, https://doi.org/10.3389/fmars.2019.00580 2019
Ref. 3731
Rosales, S.M., C. Sinigalliano, M. Gidley, P.R. Jones, and L.J. Gramer. Oceanographic habitat and the coral microbiomes of urban-impacted reefs. PeerJ, 7:e7552, https://doi.org/10.7717/peerj.7552 2019
Ref. 3727
Sinigalliano, C.D., I.C. Enochs, S.J. Stamates, P.R. Jones, C.M. Featherstone, M.L. Gidley, S.M. Rosales, L.J. Gramer, C. Staley, and T.P. Carsey. Water quality and coral reef monitoring along the southeast Florida coast. NOAA Technical Report, OAR-AOML-47, https://doi.org/10.25923/aanj-0912 2019
Ref. 3734
Gramer, L.J., and J.C. Hendee. Coastal turbidity on the southeast Florida Shelf: Monitoring turbid water sources and fates by satellite. NOAA Technical Memorandum, OAR-AOML-105, 31 pp., https://doi.org/10.25923/zqv9-nw98 2018
Ref. 3591
Putman, N.F., G.J. Goni, L.J. Gramer, C. Hu, E.M. Johns, J. Trinanes, and M. Wang. Simulating transport pathways of pelagic Sargassum from the equatorial Atlantic into the Caribbean Sea. Progress in Oceanography, 165:205-214, https://doi.org/10.1016/j.pocean.2018.06.009 2018
Ref. 3553
Hendee, J.C., J. Halas, P.J. Fletcher, M. Jankulak, and L.J. Gramer. Expansion of the Coral Reef Early Warning System (CREWS) network throughout the Caribbean. Proceedings, 13th International Coral Reef Symposium, June 19-24, 2016, Honolulu, HI. International Society for Reef Studies, 517-522, 2016
Ref. 3371
Maynard, J., B. Parker, R. Beeden, J. Tamelander, P. McGowan, L. Gramer, S. Heron, M. Kendall, S.C. McKagan, E. McLeod, K. Oleson, and S. Pittman. Coral reef resilience research and management: Past, present and future. Workshop Report, NOAA Coral Reef Conservation Program, Silver Spring, MD, 44 pp., 2015
Ref. 3126
Gramer, L.J. Dynamics of sea surface temperature variability on Florida’s reef tract. Ph.D. thesis, Open Access Dissertation Paper 1083. University of Miami/Rosenstiel School of Marine and Atmospheric Science, 207 pp., 2013
Ref. 2898
Gramer, L.J., A.J. Mariano, and J.C. Hendee. Heat budget for Florida reefs: Reef-scale thermal stress via satellite. Proceedings, 12th International Coral Reef Symposium, D. Yellowlees and T.P. Hughes (eds.), Cairns, Australia, July 9-13, 2012. ARC Centre of Excellence for Coral Reef Studies, James Cook University, 5 pp., 2012
Ref. 2746
Gramer, L.J., and J.C. Hendee. Sea surface temperature can be used to predict coral bleaching events. In Tropical Connections: South Florida's Marine Environment, W.L. Kruczynski and P.J. Fletcher (eds.). IAN Press, University of Maryland Center for Environmental Science, Cambridge, MD, 91, 2012
Ref. 2717
Hendee, J., L.J. Gramer, S.F. Heron, M. Jankulak, N. Amornthammarong, M. Shoemaker, T. Burgess, J. Fajans, S. Bainbridge, and W. Skirving. Wireless architectures for coral reef environmental monitoring. Proceedings, 12th International Coral Reef Symposium, D. Yellowlees and T.P. Hughes (eds.), Cairns, Australia, July 9-13, 2012. ARC Centre of Excellence for Coral Reef Studies, James Cook University, 5 pp., 2012
Ref. 2747
Hendee, J.C., and L.J. Gramer. Oceanographic monitoring data are used to prepare ecoforecasts. In Tropical Connections: South Florida's Marine Environment, W.L. Kruczynski and P.J. Fletcher (eds.). IAN Press, University of Maryland Center for Environmental Science, Cambridge, MD, 67, 2012
Ref. 2718
Lirman, D., S. Schopmeyer, D. Manzello, L.J. Gramer, W.F. Precht, F. Muller-Karger, K. Banks. B. Barnes, E. Bartels, A. Bourque, J. Byrne, S. Donahue, J. Duquesnel, L. Fisher, D. Gilliam, J. Hendee, M. Johnson, K. Maxwell, E. McDevitt, J. Monty, D. Rueda, R. Ruzicka, and S. Thanner. Severe 2010 cold-water event caused unprecedented mortality to corals of the Florida Reef Tract and reversed previous survivorship patterns. PLoS ONE, 6(8):E23047, https://doi.org/10.1371/journal.pone.0023047 2011
Ref. 53
Brainard, R.E., S. Bainbridge, R. Brinkman, C.M. Eakin, M. Field, J.-P. Gattuso, D. Gledhill, L. Gramer, A. Green, J. Hendee, R.K. Hoeke, S.J. Holbrook, O. Hoegh-Guldberg, M. Lammers, D. Manzello, M. McManus, R. Moffitt, M. Monaco, J.A. Morgan, D. Obura, S. Planes, R.J. Schmitt, C. Steinberg, H. Sweatman, O.J. Vetter, C. Wilkinson, and K.B. Wong. An international network of coral reef ecosystem observing systems (I-CREOS). In Proceedings, OceanObs09: Sustained Ocean Observations and Information for Society (Volume 2), Venice, Italy, September 21-25, 2009, J. Hall, D.E. Harrison, and D. Stammer (eds.). ESA Publication, WPP-306, 15 pp., https://doi.org/10.5270/OceanObs09.cwp.09 2010
Ref. 150
Di Nezio, P.N., L.J. Gramer, W.E. Johns, C.S. Meinen, and M.O. Baringer. Observed interannual variability of the Florida Current: Wind forcing and the North Atlantic Oscillation. Journal of Physical Oceanography, 39(3):721-736, https://doi.org/10.1175/2008JPO4001.1 2009
Ref. 268
Gentemann, C.L., P.J. Minnett, J. Sienkiewicz, M. DeMaria, J. Cummings, Y. Jin, J.D. Doyle, L. Gramer, C.N. Barron, K.S. Casey, and C.J. Donlon. MISST: The Multi-sensor Improved Sea Surface Temperature Project. Oceanography, 22(2):76-87, https://doi.org/10.5670/oceanog.2009.40 2009
Ref. 282
Gramer, L.J., E.M. Johns, J.C. Hendee, and C. Hu. Characterization of biologically significant hydrodynamic anomalies on the Florida Reef Tract. Proceedings, 11th International Coral Reef Symposium, Ft. Lauderdale, FL, July 7-11, 2008. International Society for Reef Studies, 470-474, 2009
Ref. 288
Hendee, J.C., L.J. Gramer, D. Manzello, and M. Jankulak. Ecological forecasting for coral reef ecosystems. Proceedings, 11th International Coral Reef Symposium, Ft. Lauderdale, FL, July 7-11, 2008. International Society for Reef Studies, 534-538, 2009
Ref. 291
Hu, C., F. Muller-Karger, B. Murch, D. Myhre, J. Taylor, R. Luerssen, C. Moses, C. Zhang, L. Gramer, and J. Hendee. Building an automated integrated observing system to detect sea surface temperature anomaly events in the Florida Keys. IEEE Transactions on Geoscience and Remote Sensing, 47(6):1607-1620, https://doi.org/10.1109/TGRS.2008.2007425 2009
Ref. 293
Hendee, J.C., L. Gramer, D.P. Manzello, and M. Jankulak. Integrating near real-time data for coral reef ecological forecasting. Proceedings of the Gulf and Caribbean Fisheries Institute, 59:525-528, 2008
Ref. 387
Hendee, J.C., L. Gramer, J.A. Kleypas, D.P. Manzello, M. Jankulak, and C. Langdon. The Integrated Coral Observing Network (ICON): Sensor solutions for sensitive sites. Proceedings, Third International Conference on Intelligent Sensors, Sensor Networks, and Information Processing, Melbourne, Australia, December 3-6, 2007. Institute of Electrical and Electronics Engineers (IEEE), 669-673, https://doi.org/10.1109/ISSNIP.2007.4496923 2008
Ref. 388