Four new NCAR senior scientists named

The promotion recognizes excellence and is analogous to full professor at a university

June 27, 2018 | At its spring meeting in Washington, D.C., the UCAR Board of Trustees appointed four new NCAR Senior Scientists:

  • Joanie Kleypas (Climate & Global Dynamics Lab)
  • David Lawrence (Climate & Global Dynamics Lab)
  • Hugh Morrison (Mesoscale & Microscale Meteorology Lab)
  • Britton Stephens (Earth Observing Lab)

Senior scientists provide NCAR with long-term scientific leadership. The qualifications for the position are analogous to those for a full professor at a university. Selection is based on individual competence in research and activities that enhance NCAR’s interaction with scientists in the broader community.

Congratulations to these newly promoted scientists on this recognition of their expertise.

Joanie Kleypas

Joanie Kleypas is recognized internationally for her contributions to the fields of ocean acidification and marine ecosystem response to climate change.

Most of her work concentrates on ocean warming and ocean acidification, where she has been a leader in both the discovery of the problem and the formulation of a U.S. strategy for tackling ocean acidification. With ocean warming, she has focused on the Coral Triangle, working with modelers, ecologists, and conservation groups to identify marine refuges where ecosystems can remain viable in the future. Most recently, Kleypas partnered with researchers at the University of Costa Rica to begin a coral reef restoration project, which combines field ecology, ocean modeling, and societal research.

Kleypas first joined NCAR in 1993 as an ASP postdoctoral fellow. She was later hired as an associate scientist, and then as a ladder-track scientist within NCAR’s Institute for the Study of Society and Environment. Since 2008, she has been a Scientist III in the Oceanography Section of the Climate and Global Dynamics Division of NCAR.

Kleypas attended Lamar University in Texas, where she received her B.S. in oceanography; University of South Carolina for her M.S. in marine science; and James Cook University in North Queensland, Australia, for her Ph.D. in tropical marine studies.

NCAR Senior Scientist Joanie Kleypas 

David Lawrence

Dave Lawrence is a leading international expert on research on the impact of projected permafrost degradation on carbon, water, and energy cycles. Recently he has taken a leadership role in setting the agenda for research and assessment of the impacts of land-use and land-cover change on regional climate and the carbon and water cycles. Additional interests and activities include land-atmosphere interactions, land model assessment, improving the representation of hydrology in Earth system models, and the impact of fire on climate.

Lawrence joined NCAR in 2004 as a Project Scientist I after completing a 1-year Visiting Scientist appointment. He has served as the internal co-chair of the CESM Land Model Working Group (LMWG) since 2005 and has been a member of the CESM Scientific Steering Committee since 2010. The LMWG was awarded the CESM Distinguished Achievement Award in 2008 for its members' collaborative effort to build Community Land Model version 3.5 (CLM3.5). Under his leadership, membership in the LMWG has grown substantially and the rate and scope of model development has accelerated.

Lawrence received a B.S. in physics from the University of California at San Diego and a Ph.D. in atmosphere and ocean sciences from the University of Colorado.

NCAR Senior Scientist David Lawrence 

Hugh Morrison

Morrison's expertise is in the microphysics and dynamics of clouds and their interactions with other components of weather and climate, using a combination of modeling, theory, and observations. His accomplishments include the development of widely-used microphysics parameterizations in the Weather Research and Forecasting model (WRF) and the Community Earth System Model (CESM), studies of polar mixed-phase clouds, theoretical advances in convective cloud dynamics, and the development of efficient numerical techniques for calculating transport of cloud quantities.

Morrison has been a scientist at NCAR since 2007, after working as a postdoctoral fellow in NCAR's Advanced Study Program. He has been an adjunct professor in the Department of Meteorology at Pennsylvania State University since 2015. He has served as chair of the GEWEX Cloud System Study Working Group on Polar Clouds (2005-2011) and as a steering committee member of the GEWEX Global Atmospheric System Study (2011). He has also been a member of the American Meteorological Society Committee on Cloud Physics and a committee member of the International Commission on Clouds and Precipitation. He is currently an editor of Monthly Weather Review and an associate editor of the Journal of the Atmospheric Sciences. Morrison is the recipient of the 2012 AMS Henry G. Houghton award.

Morrison received his M.S and Ph.D. in 2003 from the University of Colorado at Boulder in astrophysical, planetary, and atmospheric sciences.

 NCAR Senior Scientist Hugh Morrison

Britton Stephens

Stephens is highly regarded internationally for his research developing and deploying novel instruments for tower, ship, and airborne observations of atmospheric oxygen and carbon dioxide, and for synthesizing data sets and models to elucidate global carbon cycle processes.

Stephens has served as a Principal Investigator, co-PI and/or mission scientist for numerous field campaigns, such as the CO2 Budget and Rectification Airborne campaigns (COBRA), the Airborne Carbon in the Mountains Experiment (ACME), the HIAPER Pole-to-Pole Observations project (HIPPO), and the more recent O2/N2 Ratio and CO2 Airborne Southern Ocean study (ORCAS). These efforts have collected unprecedented data sets, and Stephens has collaborated with leading national and international researchers to publish results and encourage the broad use of these innovative measurements.

Stephens has been a scientist at NCAR since 2002, when he was hired as a Scientist I. He has been a lead organizer of a long-running series of community meetings on greenhouse gas measurement techniques sponsored by the World Meteorological Organization. Additionally he has shared his measurement innovations widely, and instruments based on his designs are in use around the world.

Stephens received a bachelor’s degree in earth and planetary sciences from Harvard in 1993 and a Ph.D. in oceanography from the Scripps Institution of Oceanography in 1999.

NCAR Senior Scientist Britton Stephens