Department of Atmospheric, Oceanic & Space Sciences in the College of Engineering at the University of Michigan

FACULTY


Chris Ruf
[ Download CV ]

Chris Ruf

Professor, Atmospheric Science
Professor, Electrical Engineering

AOSS graduate advisor

Office: SRB 2527A
Phone: (734) 764-6561
Fax: (734) 936-0503
Email: cruf@umich.edu
Web: http://ktb.engin.umich.edu

Education

Ph.D., Electrical & Computer Engineering, University of Massachusetts, Amherst
B.A., Physics, Reed College

Research

Earth and Planetary Remote Sensing

Principal Investigator, NASA Cyclone Global Navigation Satellite System Earth Venture Mission

Specializations and Research Interests

  • Earth Environmental Remote Sensing:
    • Global Navigation Satellite System Mission Execution
    • Design and fabrication of next-generation satellite microwave radiometers
    • Novel methods for maintaining high accuracy and stability calibration of satellite sensors to detect minute global change signatures
    • Application of inversion techniques and multi-sensor assimilation to remote sensing
    •  Hardware and algorithmic aspects of satellite microwave radiometry
  • Synthetic thinned aperture radiometry
  • Mitigation of radio frequency interference
  • Self-contained end-to-end radiometer calibration system
  • Use of stationary statistical properties of upwelling radiances to constrain absolute accuracy and long term stability of satellite measurements
  • Profiling of lower, middle and upper atmosphere using multispectral, multisensor and climatological databases

Honors, Awards and Accomplishments

  • 2006 International Geoscience and Remote Sensing Symposium Prize Paper Award for Detection of RFI by its Amplitude Probability Distribution
  • Instrument Scientist, NASA TOPEX Microwave Radiometer
  • Principle Investigator, calibration/validation of US Navy GEOSAT Follow-On Water Vapor Radiometer
  • Science Team Member, NASA Jason-1 Microwave Radiometer
  • Science Team Member, NASA Aquarius Microwave Radiometer
  • Developed new method for estimating the depth of the marine boundary layer (BLD) from space using horizontal turbulence structure of vertically integrated atmospheric water vapor
  • Developed new method for absolute and relative calibration of spaceborne microwave radiometers using lower bound on a cumulative statistic of the measured radiance
  • Advanced technologies in support of synthetic thinned aperture radiometer (STAR) in space (antenna arrays, real/synthetic aperture sharing, digital correlators, calibration techniques)
  • Derived correction to standard model for pressure broadening of atmospheric absorption line of water vapor at 22.235 GHz based on microwave spectrometer observations
  • Fellow, IEEE (2001)
  • IEEE Judith A. Resnik Technical Field Award, Contributions to the absolute calibration of spaceborne microwave radiometers (1999)
  • IEEE Transactions on Geoscience & Remote Sensing Prize Paper Award, Retrieval of tropospheric water vapor scale height from horizontal turbulence (1997)
  • NASA Group Achievement Award, Juno Proposal Team (2012)
  • NASA Group Achievement Award, Aquarius Launch, Early Orbit Operations, and Commissioning (2012)
  • NASA Group Achievement Award, Genesis and Rapid Intensification Processes (GRIP) Airborne Earth Science Mission (2011)
  • NASA Group Achievement Award, Lightweight Rainfall Radiometer (2004)
  • NASA Group Achievement Award, TOPEX Joint Verification Team (1994)
  • NASA Group Achievement Award, TOPEX precision orbit determination (1993)
  • NASA Group Achievement Award, TOPEX Microwave Radiometer (1993)
  • NASA Certificate of Recognition, Piezoelectric reflecting array for reflector surface distortion compensation (1992)
  • NASA Certificate of Recognition, Synthetic aperture interferometric radiometer image reconstruction error analysis (1992)
  • NASA Certificate of Recognition, Sparse aperture interferometric radiometer - Refining the two-dimensional antenna configuration (1990)

Professional Service

  • Editor in Chief, IEEE Transactions on Geoscience and Remote Sensing  (2009-2012)
  • Member, URSI Commission F (Remote Sensing)
  • Former Member, National Academies Committee on Radio Frequency
  • Former Associate Editor, AGU Radio Science
  • Former Guest Editor, IEEE Transactions on Geoscience and Remote Sensing
  • Former Guest Editor, AGU Radio Science
  • Former Associate Editor, AMS Journal of Atmospheric and Oceanic Technology
  • Associate Editor, IEEE Transactions on Geoscience and Remote Sensing
  • Former Editor, IEEE Geoscience and Remote Sensing Society Newsletter

Publications

http://ktb.engin.umich.edu/RSG/pubs.htm 

Updated: 2015-01-24