Dr. Lewis J. Gramer
Assistant Scientist
Hurricane Research Division-- CIMAS
phone: 305-361-4554
lew.gramer@noaa.gov
NOAA's Atlantic Oceanographic and Meteorological Laboratory
4301 Rickenbacker Causeway
Miami, FL 33149
Professional InterestsResearch: real-time hurricane modeling, with emphasis on modeling of ocean heat content, ocean-wave coupling, and applications of artificial intelligence/machine learning. Past research: role of physical processes (air-sea interaction, ocean circulation) in reef ecology & nutrient chemistry; ocean dynamics and biogeography of pelagic organisms; ocean science applications of artificial intelligence (expert systems, neural nets). Large-scale oceanography and climate. 2005-now: Scientist, CIMAS @NOAA-AOML. 2013-2015: Postdoctoral fellow, Florida Inst. Oceanogr. / U. South Florida at Keys Marine Lab. 2013: PhD "Dynamics of sea temperature variability on Florida's reef tract", U. Miami/RSMAS. 1990: S.B. Mathematics, MIT. https://scholar.google.com/citations?user=rB4Ew40AAAAJ
Recently Published Peer-Reviewed Papers- Alvey, G.R. III, G.J. Alaka Jr., L. Gramer, and A. Hazelton. Evaluation of Hurricane Analysis and Forecast System (HAFS) error statistics stratified by internal structure and environmental metrics. Weather and Forecasting, https://doi.org/10.1175/WAF-D-24-0030.1 2024
- Annane, B., and L.J. Gramer. Influence of CyGNSS L2 wind data on tropical cyclone analysis and forecasts in the coupled HAFS/HYCOM system. Frontiers in Earth Science, 12:1418158, https://doi.org/10.3389/feart.2024.1418158 2024
- Gramer, L.J., J. Steffen, M. Aristizabal, and H.-Y. Kim. The impact of coupling a dynamic ocean in the Hurricane Analysis and Forecast System. Frontiers in Earth Science, 12;1418016, https://doi.org/10.3389/feart.2024.1418016 2024
- Alvey, G.R. III, G.J. Alaka Jr., L. Gramer, and A. Hazelton. Evaluation of Hurricane Analysis and Forecast System (HAFS) error statistics stratified by internal structure and environmental metrics. Weather and Forecasting, https://doi.org/10.1175/WAF-D-24-0030.1 2024
Ref. 4462
- Annane, B., and L.J. Gramer. Influence of CyGNSS L2 wind data on tropical cyclone analysis and forecasts in the coupled HAFS/HYCOM system. Frontiers in Earth Science, 12:1418158, https://doi.org/10.3389/feart.2024.1418158 2024
Ref. 4459
- Gramer, L.J., J. Steffen, M. Aristizabal, and H.-Y. Kim. The impact of coupling a dynamic ocean in the Hurricane Analysis and Forecast System. Frontiers in Earth Science, 12;1418016, https://doi.org/10.3389/feart.2024.1418016 2024
Ref. 4441
- 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
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