Department of Meteorology, The Pennsylvania State University, University Park, Pennsylvania
UCAR Visiting Scientist, NCEP-African Desk, Camp Springs, Maryland
EAMAC School of Meteorology, Niamey, Niger
IRD-LTHE-ENSHMG, Grenoble, France
Atmospheric Sciences Program and Department of Chemistry, Howard University, Washington, D.C.
Atmospheric Sciences Program, and Department of Physics, Howard University, Washington, D.C.