• 301-419-9030
  • ricardo.k.sakai@Howard.edu
  • Howard University


Dr. Sakai received his Bachelor of Science degree at the Universidade de São Paulo, and his Doctorate at the University at Albany, SUNY; where he worked as Research Associate. He joined Howard University in 2011, working at the HU Beltsville Campus. Dr. Sakai’s interests are the interpretation of micrometeorological measurements in suburban, industrial, and forested landscapes; atmospheric boundary layer processes; air quality; spatial validity of single point measurements in a synoptic scale; instrumentation assembly; and upper air data quality assessment.   He also teaches, mentors, and advises PhD and MS candidates in Atmospheric Sciences at Howard University.

Research Interests

Dr. Sakai is responsible for maintenance, QA/QC, database, and data analysis at Howard University, Beltsville Campus (HUBC). He participates in specific field experiments (e.g., NASA/Discover AQ, GRUAN). Dr. Sakai also assembles small instruments to probe the atmosphere, using several platforms such as balloons and unmanned aerial vehicles.


Okonkwo C. , B. Demoz, R. K. Sakai, C. Ichoku, C. Anarado, J. Adegoke, A. Amadou, S. I. Abdullahi, N. Krakauer, 2015“Combined effect of El Niño southern oscillation and Atlantic multidecadal oscillation on Lake Chad level variability”. Cogent Geoscience.

Gebremariam S., B. Demoz, C. Okonkwo and R. K. Sakai, 2015. “An observational and model characterization of vertical structure of wind fields over Eastern United States: A Case study of Sterling, Virginia”. Advances in Meteorology.

Hicks M., E. Joseph, R.K. Sakai, 2015. “The Evaluation of a New Method to Detect Mixing Layer Heights from Lidar Observations. Journal of Atmospheric and Oceanic Technology”. In press.

Payne, M.K.. E. Joseph, R.K. Sakai, J.D. Fuentes, W. R. Stockwell, 2014. “Meteorological controls on particle growth events in Beltsville, MD, USA during July 2011”. Journal of Atmospheric Chemistry.

Doughty, D.C., J.D. Fuentes, R. K. Sakai, K. Sanchez, X. Hu, 2013 . “On the nocturnal decay of isoprene”. Journal of Atmospheric Chemistry.