Janice Bytheway

Image of Janice Bytheway


Research Scientist


Hydrology Applications




(307) 298-9796



I joined the PSL Hydrometeorology Modeling and Applications Team (now Hydrology Applications Division) as a Research Scientist in March of 2017. My research interests focus on the atmospheric components of the global hydrologic cycle, specifically examining ways in which we can better observe and represent these components at a variety of spatial and temporal scales.

My current research is working towards modernizing estimates of probable maximum precipitation (PMP) across the US. PMP estimates are used in the design and updating of infrastructure such as dams and nuclear power facilities. By evaluating multiple operational and experimental observation and modeling systems, I seek to improve our understanding of the strengths, weaknesses, and uncertainties in these products and how they can be used, combined, or applied to improve PMP estimates.

Before joining PSL, my work focused on remotely sensed observations of precipitation and column water vapor, including production of the NASA Water Vapor Project - MEaSUREs (NVAP-M) global water vapor climate data record. Whenever possible, I enjoy applying my remote sensing background as a collaborator on a variety of PSL projects, most recently the Advanced Quantitative Precipitation Information (AQPI) project and a NASA-funded project examining satellite-based precipitation estimates over ocean.

Research Interests

  • Quantitative Precipitation Estimates and Forecasts
  • Model Validation
  • Remote Sensing
  • Extreme Precipitation


  • Ph.D., Atmospheric Science, Colorado State University, 2017
  • M.S., Atmospheric Science, Colorado State University, 2008
  • B.S., Earth Science, California University of Pennsylvania, 2005

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