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David E. Weissman

Professor of Engineering


Degrees

PHD, 1968, Stanford Univ; MSEE, 1961, New York Univ (NYU); BA, 1960, New York Univ (NYU); BSEE, 1960, New York Univ (NYU)


Bio

PRESENT POSITION:

(Since 1968) 

Jean Nerkin Distinguished Professor of Engineering
Department of Engineering,   Hofstra University
Hempstead, New York 11549

PROFESSIONAL  SOCIETIES:  

Institute of Electrical and Electrical Engineers (IEEE), Life Fellow
  Ex-Officio Member of Administrative Committee, Geoscience & Remote Sensing Society
  Ex-Officio Member of Administrative Committee, Oceanic Engineering Society
American Meteorological Society, Member
American Geophysical Union, Member
International Scientific Radio Union (URSI - U.S. National Committee, Elected)

HONORS:

Best Applications Paper for 1977 in the IEEE Transactions on Antennas and Propagation (with James W. Johnson)
IEEE Centennial Medal, Awarded by IEEE Oceanic Engineering Society, 1984
Elected to IEEE Fellow - December 1990
Distinguished Service Award - IEEE Oceanic Engineering Society, 1995
NASA Group Achievement Award (as a member of the NASA Scatterometer Science Team), April, 1998
Certificate of Recognition, IEEE Geoscience and Remote Sensing Society, 2009

ENGINEERING, RESEARCH AND ACADEMIC APPOINTMENTS

Full Time Positions:
1961-63 Electrical Engineer, Dorne & Margolin, Inc., Westbury, NY
1963-68 Research Engineer, Stanford Research Institute, Menlo Park, CA
1968-Present, Professor of Electrical Engineering, Hofstra University

PROFESSIONAL SOCIETY SERVICE ACTIVITIES

IEEE Journal of Oceanic Engineering
  Associate Editor 1975-79
  Editor-in-Chief 1979-82
1983 IEEE International Geoscience and Remote Sensing Symposium, Co-Chairman of Technical Program Committee, San Francisco, CA.
IEEE Oceanic Engineering Society - Administrative Committee (ADCOM)
  1975-79:  Secretary and Chairman of Awards Committee
  1980-94: Elected ADCOM Member
  1980-present: Chairman of Technical Committee on Air/Space Remote Sensing 
  1993-present: Chairman of Fellow Evaluation Committtee
  IEEE Publications Board, 1988-89
IEEE Geoscience and Remote Sensing Society - Administrative Committee, 1999-present:

SUMMARY OF RESEARCH INTERESTS AND ACTIVITIES

I have been actively involved in radar remote sensing and measurements for defense and environmental applications for four decades. I have developed and participated in innovative experiments and studies with colleagues at the NASA Langley Research Center, the Jet Propulsion Laboratory in Pasadena,  the Naval Research Laboratory and other major educational and government organizations.  I have been part of the international growth in this field, which has produced significant change in the fields of meteorology and oceanography.

Starting in the late 1980's my efforts were focused on developing the ability of a satellite CW-radar (scatterometer) to measure the wind speed and wind stress over the global oceans. These program involved working with aircraft acquired data and other coincident sensors to develop algorithms that could be used from the spaceborne platform. Starting with the launch of the first NASA scatterometer into space in 1996, my activities centered on the interpretation and application of the satellite scatterometer and other data.

Sponsorship by the New York City Office of the National Weather Service, which started in 1999,  has led to a new area of rain measurements and its impact on the spaceborne scatterometer. This has been in concert with my NASA studies.  This has produced useful studies of the effect of rain on the accuracy of the wind measurements estimated by the scatterometer. Current interest is on the correction of QuikSCAT and ADEOS-II Scatterometer wind errors caused by rain using the high resolution NWS NEXRAD radars, for which there are numerous coastal locations. The high resolution enables determination of the limitations of the lower resolution spaceborne sensors. Also, the  amount of change in the sea surface NRCS caused by rain-induced roughness is being determined for Ku-band and for C-band using QuikSCAT and ASCAT data.

Current research funded projects are:

  1. Hofstra University Center for Climate Study, funded by the U.S. Department of Energy (2009-2012).This phase of the study is investigating the effects of impinging raindrops on the CO2 transfer at the air-water interface, as a function of rainrate and wind speed, simultaneously.
  2. “Joint Modeling of Active and Passive Microwave Signatures of the Ocean Surface”, funded by the National Aeronautics and Space Administration (2011-2014). Our proposed project will develop a joint active/passive model of microwave sensing of the ocean surface, a model required for more consistent utilization of microwave scattering and emission from the ocean. 

ENGINEERING AND SCIENTIFIC REFEREED JOURNAL PUBLICATIONS

(Since 1994)

Weissman, D.E., B. Stiles, S. Hristova-Veleva,D.Long,D. Smith, K. Hilburn, and W.Jones, 2012,”Challenges to Satellite Sensors of Ocean Winds: Addressing Precipitation Effects”, Journal of Atmospheric and Oceanic Technology, in press.

Weissman, D.E. and M.A. Bourassa, 2011, “The Influence of Rainfall on Scatterometer Backscatter Within Tropical Cyclone Environments-Implications on Parameterization of Sea Surface Stress”, IEEE Transactions on  Geoscience and Remote Sensing,   Vol. 49, No. 12, December 2011 (in press)

Weissman, D.E. and M.A. Bourassa, 2008: “Measurements of the effect of rain-induced sea surface roughness on the QuikSCAT scatterometer radar cross section”, IEEE Transactions on Geoscience. and Remote Sensing, Vol. 46, No. 10, October 2008, pp 2882-2894

Weissman, D.E., G. Apgar, J.S. Tongue and M.A. Bourassa, 2005; “Correcting Scatterometer winds by removing rain effects”, Bulletin of Amer. Meteor. Soc., Vol. 86, No. 5, p. 621-622, May 2005

Weissman, D.E., M.A. Bourassa, J.J. O’Brien and J. Tongue, “Calibrating the QuikSCAT/Seawinds radar for measuring rainrateover the oceans”, IEEE Transactions on Geosci. and Remote Sensing, Vol. 41, No. 12, December 2003, pp 2814-2820

Weissman, D.E., M.A. Bourassa and J. Tongue, AEffects of rain-rate and wind magnitude on SeaWinds scatterometer  wind speeds errors@, J. Atmospheric and Oceanic Tech., Vol. 19,   May, 2002,  pp 738-746

Weissman, D.E., W.J. Plant and V.G. Irisov, AComparison of Scatterometer and Radiometer Wind Vector Measurements, Journal of Atmospheric and Oceanic Technology , Vol. 19, January 2002,  pp 100- 113     

Weissman, D.E. and H.C. Graber, ASatellite Scatterometer Studies of Ocean Surface Stress and Drag Coefficients@, J. Geophys. Res., (Oceans), June 15, 1999, pp. 11,329-11,336

Plant, W.J., D,E. Weissman, W.C. Keller, V. Hesany, K. Hayes and K. Hoppel, Air-Sea momentum transfer and microwave cross section of the sea”, J. Geophys. Res, June 15, 1999, pp. 11,173-11,192

Vershell, M., M.A. Bourassa, D.E. Weissman and J.J. O’Brien, Ocean model validation of the
NASA  Scatterometer winds@, J. Geophys. Res., June 15, 1999, pp. 11,359-11,374

Weissman, D.E., ASatellite scatterometer studies of ocean surface stress and drag coefficients using a direct model@, The Wind Driven Air-Sea Interface: Electromagnetic and Acoustic Sensing, Wave Dynamics and Turbulent Fluxes, Edited by Michael L. Banner, 1999, School of Mathematics, The University of New South Wales, Sydney, Australia  (Edited Proceedings)

Weissman, D.E. and D.M. LeVine, The role of mutual coupling in the performance of synthetic aperture radiometers, RadioScience, Vol. 33, No. 3, pp 767-779, May-June 1998

Weissman, D.E., F. Li, S. Lou, S. Nghiem, G. Neumann, R. McIntosh, S. Carson, J. Carswell, H. Graber and R.  Jensen, "Measurements of ocean surface stress using aircraft scatterometers", J. Atmospheric and Oceanic Technology., Vol. 14, August 1997, pp. 835-848

Weissman, D.E., W.J. Plant and S. Stolte, "The response of microwave cross sections of the sea to wind fluctuations", J. Geophys. Res., Vol. 101, No. C5, pp 12,149-12,161, May 15, 1996

Weissman, D.E., W.J. Plant, S. Stolte and J. Dugan, AThe modulation and coherence functions between atmospheric turbulence and at the sea surface and the radar cross section@, The Air-Sea Interface: Radio and Acoustic Sensing, Turbulence and Wave Dynamics, Edited by M.A.  Donelan, W.H. Hui and W.J. Plant, 1996, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL. (Edited Proceedings)

Weissman, D.E., K.L. Davidson, R.A. Brown, C.A. Friehe and F. Li, "The relationships between the microwave radar cross section and both wind speed and stress - model function development using FASINEX Data," J.Geophys. Res., Vol. 99, No. C5, pp 10,087-10,108, May 15, 1994

TEACHING - COURSES TAUGHT

Since the grants that support my research provide me with released time I usually teach two courses per semester. The courses that I have taught most frequently are:

Engineering 33 - Electronic Circuits
Engineering 34 – Circuit Analysis Laboratory
Engineering 104 - Engineering Electromagnetics
Engineering 111 - Electromagnetic Waves
Engineering 171 - Principles of Communication Systems and Noise
Engineering 178 – Communication Networks Laboratory
Engineering 193 - Electronic and Feedback Networks
Engineering 191 – Remote Sensing


Recent Courses Taught

Course Title Level
ENGG 033 ELECTRONIC CIRCUITS Undergraduate
ENGG 104 ENGG ELECTROMAGNTCS Undergraduate
ENGG 111 ELCTRMGMT WVS & TRANSM Undergraduate
ENGG 143K ELECTRCL & COMPTR ENGG DESIGN Undergraduate
ENGG 171 PRIN:COMM SYSTMS & NOISE Undergraduate
ENGG 189 RANDM SIGNL ANALYSIS Undergraduate
ENGG 191 REMOTE SENSING Undergraduate
ENGG 199 INDEPENDENT READINGS IN ENGG Undergraduate
Photo of David Weissman

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Weed Hall 200B
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