Benjamin Trabing

CPAESS

3090 Center Green Drive

Boulder, CO 80301

I am an Associate Scientist at the University Corporation for Atmospheric Research (UCAR) working remotely for the National Hurricane Center. I got my M.S. and Ph.D. in atmospheric science from Colorado State University and a B.S. in meteorology from the University of Oklahoma. I have a passion for both learning and teaching about the weather. My research interests include tropical meteorology, tropical cyclones, lightning, mesoscale meteorology, and radiation. My goal is to improve forecasts of tropical cyclone hazards and I am actively working on a number of projects to better communicate tropical cyclone intensity forecasts and provide storm surge forecasts to new areas around the world.

Selected Publications

2024

Quality Control of Geostationary Lightning Mapper Observations for Tropical Cyclone Applications

Benjamin C. Trabing, Kyle Hilburn, Stephanie Stevenson, and 2 more authors

Journal of Atmospheric and Oceanic Technology, 2024

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The Geostationary Lightning Mapper (GLM) has been providing unprecedented observations of total lightning since becoming operational in 2017. The potential for GLM observations to be used for forecasting and analyzing tropical cyclone (TC) structure and intensity has been complicated by inconsistencies in the GLM data from a number of artifacts. The algorithm that processes raw GLM data has improved with time; however, the need for a consistent long-term dataset has motivated the development of quality control (QC) techniques to help remove clear artifacts such as blooming events, spurious false lightning, ‘bar’ effects, and sun glint. Simple QC methods are applied that include scaled maximum energy thresholds and minima in the variance of lightning group area and group energy. QC and anomaly detection methods based on machine learning (ML) are also explored. Each QC method is successfully able to remove artifacts in the GLM observations while maintaining the fidelity of the GLM observations within TCs. As the GLM processing algorithm has improved with time, the amount of QC flagged lightning within 100 km of Atlantic TCs is reduced, from 70% during 2017, to 10% in 2018, to 2% during 2021. These QC methods are relevant to the design of ML-based forecasting techniques which could pick up on artifacts rather than the signal of interest in TCs if QC wasn’t applied beforehand.
@article{https://doi.org/10.1029/2024GL109663, author = {Trabing, Benjamin C. and Hilburn, Kyle and Stevenson, Stephanie and Musgrave, Kate and DeMaria, Mark}, title = {Quality Control of Geostationary Lightning Mapper Observations for Tropical Cyclone Applications}, journal = {Journal of Atmospheric and Oceanic Technology}, volume = {41}, number = {9}, pages = {889 - 901}, doi = {https://doi.org/10.1175/JTECH-D-23-0138.1}, year = {2024}, }
Are Forecasts of the Tropical Cyclone Radius of Maximum Wind Skillful?

Benjamin C. Trabing, Andrew B. Penny, Jonathan Martinez, and 1 more author

Geophysical Research Letters, 2024

e2024GL109663 2024GL109663

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The radius of maximum wind (RMW) defines the location of the maximum winds in a tropical cyclone and is critical to understanding intensity change as well as hazard impacts. A comparison between the Hurricane Analysis and Forecast System (HAFS) models and two statistical models based off the National Hurricane Center official forecast is conducted relative to a new baseline climatology to better understand whether models have skill in forecasting the RMW of North Atlantic tropical cyclones. On average, the HAFS models are less skillful than the climatology and persistence baseline and two statistically derived RMW estimates. The performance of the HAFS models is dependent on intensity with better skill for stronger tropical cyclones compared to weaker tropical cyclones. To further improve guidance of tropical cyclone hazards, more work needs to be done to improve forecasts of tropical cyclone structure.
@article{https://doi.org/10.1029/2024GL109664, author = {Trabing, Benjamin C. and Penny, Andrew B. and Martinez, Jonathan and Fritz, Cody}, title = {Are Forecasts of the Tropical Cyclone Radius of Maximum Wind Skillful?}, journal = {Geophysical Research Letters}, volume = {51}, number = {12}, pages = {e2024GL109663}, keywords = {tropical cyclone, radius of maximum winds, HAFS, numerical weather prediction models}, doi = {https://doi.org/10.1029/2024GL109663}, eprint = {https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2024GL109663}, note = {e2024GL109663 2024GL109663}, year = {2024}, }

2023

VMAX_90_v3_Prototype_AL092021_2021082612_wcone_fromtxt.png

The Development and Evaluation of a Tropical Cyclone Probabilistic Landfall Forecast Product

Benjamin C. Trabing, Kate D. Musgrave, Mark DeMaria, and 3 more authors

Weather and Forecasting, 2023

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@article{TheDevelopmentandEvaluationofaTropicalCycloneProbabilisticLandfallForecastProduct,
  author = {Trabing, Benjamin C. and Musgrave, Kate D. and DeMaria, Mark and Zachry, Brian C. and Brennan, Michael J. and Rappaport, Edward N.},
  title = {The Development and Evaluation of a Tropical Cyclone Probabilistic Landfall Forecast Product},
  journal = {Weather and Forecasting},
  year = {2023},
  publisher = {American Meteorological Society},
  address = {Boston MA, USA},
  volume = {38},
  number = {8},
  doi = {10.1175/WAF-D-22-0199.1},
  pages = {1363 - 1374},
}

2021

The Sensitivity of Eyewall Replacement Cycles to Shortwave Radiation

B. C. Trabing, and M. M. Bell

Journal of Geophysical Research: Atmospheres, 2021

e2020JD034016 2020JD034016

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The sensitivity of tropical cyclone secondary eyewall formation (SEF) and subsequent eyewall replacement cycles (ERCs) to shortwave radiation is examined in this study by varying the solar constant and diurnal cycle at different times prior to an ERC using idealized simulations from the Weather Research and Forecasting model. The magnitude of shortwave radiation plays an important role in modifying the timing of the SEF with nonlinear interactions amplifying the SEF formation differences at longer lead-times. Shortwave radiation has a delaying effect on the SEF and ERC primarily through its modifications of the distribution of convective and stratiform heating profiles in the rainbands. Shortwave radiation reduces both the area and diabatic heating of convection in the model domain, while increasing the amount of stratiform precipitation that has weaker low-level cooling and upper-level heating rates. The primary mechanism by which shortwave radiation reduces the diabatic heating profile and frequency of convection in the rainbands is through heating of the mid-upper troposphere which stabilizes the region and reduces convective available potential energy.
@article{https://doi.org/10.1029/2020JD034016, author = {Trabing, B. C. and Bell, M. M.}, title = {The Sensitivity of Eyewall Replacement Cycles to Shortwave Radiation}, journal = {Journal of Geophysical Research: Atmospheres}, volume = {126}, number = {8}, pages = {e2020JD034016}, keywords = {Eyewall replacement cycle, shortwave radiation, tropical cyclones}, doi = {10.1029/2020JD034016}, eprint = {https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2020JD034016}, note = {e2020JD034016 2020JD034016}, year = {2021}, }

Observations of Diurnal Variability under the Cirrus Canopy of Typhoon Kong-rey (2018)

Benjamin C. Trabing, and Michael M. Bell

Monthly Weather Review, 2021

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@article{ObservationsofDiurnalVariabilityundertheCirrusCanopyofTyphoonKongrey2018,
  author = {Trabing, Benjamin C. and Bell, Michael M.},
  title = {Observations of Diurnal Variability under the Cirrus Canopy of Typhoon Kong-rey (2018)},
  journal = {Monthly Weather Review},
  year = {2021},
  publisher = {American Meteorological Society},
  address = {Boston MA, USA},
  volume = {149},
  number = {9},
  doi = {10.1175/MWR-D-20-0327.1},
  pages = {2945 - 2964},
}

2019

Impacts of Radiation and Upper-Tropospheric Temperatures on Tropical Cyclone Structure and Intensity

Benjamin C. Trabing, Michael M. Bell, and Bonnie R. Brown

Journal of the Atmospheric Sciences, 2019

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@article{ImpactsofRadiationandUpperTroposphericTemperaturesonTropicalCycloneStructureandIntensity,
  author = {Trabing, Benjamin C. and Bell, Michael M. and Brown, Bonnie R.},
  title = {Impacts of Radiation and Upper-Tropospheric Temperatures on Tropical Cyclone Structure and Intensity},
  journal = {Journal of the Atmospheric Sciences},
  year = {2019},
  publisher = {American Meteorological Society},
  address = {Boston MA, USA},
  volume = {76},
  number = {1},
  doi = {10.1175/JAS-D-18-0165.1},
  pages = {135 - 153},
}