MIT Reverend Dr. Martin Luther King Jr. Leadership Award, February 2000William Mong Distinguished Lecture, 1999-2000, The University of Hong Kong
Albert Baez Jr. Award and the Outstanding Educator Award of the
Hispanic Engineer National Achievement Awards Conference, 1999
1999 Horton Lecturer, American Meteorological Society
1998 Clarke Prize Laureate for Outstanding Achievement in Water Science and Technology
Named Top 100 Most Influential Hispanics, Hispanic Business, 1997
Bacardi and Stockholm Water Foundations Professor, MIT, 1995-present
Fellow, American Society of Civil Engineers, 1994
1993 Walter L. Huber Civil Engineering Research Prize, ASCE
Fellow, American Meteorological Society, 1992
Honoris Causa Laurea, Instituto di Idraulica Agraria, Universita Degli Studi di Perugia, Italy, 1992
William E. Leonhard Professorship, MIT, 1989-1995
American Geophysical Union, James B. Macelwane Award, 1982
Fellow, American Geophysical Union, 1982
John Simon Guggenheim Memorial Foundation Fellowship, 1982
American Geophysical Union, Horton Award, 1981
Gilbert Winslow Career Development Chair, MIT, 1979-1982
Tau Beta Pi, Chi Epsilon, Sigma Xi
Graduate Fellowship from Puerto Rico's Economic Development Administration