Publications

Ocean/Atmosphere Applications

  1. Park, J., J. T. Johnson, Y. Yi, A. J. O’Brien, "Using “Rapid Revisit” CYGNSS Wind Speed Measurements to Detect Convective Activity," J. Sel. Top. Appl. Earth Obs. Remote Sens., doi: 10.1109/JSTARS.2018.2848267, 2018. [paper]
  2. Ruf, C.S., C. Chew, T. Lang, M.G. Morris, K. Nave, A. Ridley, R. Balasubramaniam, “A New Paradigm in Earth Environmental Monitoring with the CYGNSS Small Satellite Constellation,” Scientific Reports, doi: 10.1038/s41598-018-27127-4, 2018 [paper]
  3. Leidner, S., B. Annane, B. McNoldy, R. Hoffman, and R. Atlas, “Variational Analysis of Simulated Ocean Surface Winds from the Cyclone Global Navigation Satellite System (CYGNSS) and Evaluation using a Regional OSSE,” J. Atmos. Oceanic Technol. doi:10.1175/JTECH-D-17-0136.1, in press, 2018. [paper]
  4. Annane, B., B. McNoldy, S. Leidner, R. Hoffman, R. Atlas, and S. Majumdar, “A Study of the HWRF Analysis and Forecast Impact of Realistically Simulated CYGNSS Observations Assimilated as Scalar Wind Speeds and as VAM Wind Vectors,” Mon. Wea. Rev. doi:10.1175/MWR-D-17-0240.1, 2018. [paper]
  5. Hoover, K.C., T. J. Lang, X. Li, T. J. Castillo, T. Chronis, “Use of an End-to-End-Simulator to Analyze CYGNSS,” J. Atmos. Oceanic Technol., doi: 10.1175/JTECH-D-17-0036.1, 2018. [paper]
  6. Zhang, S., Z. Pu, D. J. Posselt, R. Atlas, “Impact of CYGNSS Ocean Surface Wind Speeds on Numerical Simulations of a Hurricane in Observing System Simulation Experiments,” J. Atmos. Ocean. Technol., doi: 10.1175/JTECH-D-16-0144.1, 2017. [paper]
  7. Morris, M., and C. S. Ruf, “Determining Tropical Cyclone Surface Wind Speed Structure and Intensity with the CYGNSS Satellite Constellation,” J. Appl. Meteor. Climatol., 56(7), 1847–1865, doi: 10.1175/JAMC-D-16-0375.1, 2017. [paper]
  8. Morris, M., and C. S. Ruf, “Estimating Tropical Cyclone Integrated Kinetic Energy with the CYGNSS Satellite Constellation,” J. Appl. Meteor. Climatol., 56, 235–245, doi: 10.1175/JAMC-D-16-0176.1, 2017. [paper]
  9. Ruf, C. S., R. Atlas, P. S. Chang, M. P. Clarizia, J. L. Garrison, S. Gleason, S. J. Katzberg, Z. Jelenak, J. T. Johnson, S. J. Majumdar, A. O’Brien, D. J. Posselt, A. J. Ridley, R. J. Rose, V. U. Zavorotny, “New Ocean Winds Satellite Mission to Probe Hurricanes and Tropical Convection,” Bull. Amer. Meteor. Soc., doi:10.1175/BAMS-D-14-00218.1, pp385-395, Mar 2016. [paper]
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Land and Inland Waterways Applications

  1. Jensen, K., K. McDonald, E. Podest, N. Rodriguez-Alvarez, V. Horna, N. Steiner, "Assessing L-Band GNSS-Reflectometry and Imaging Radar for Detecting Sub-Canopy Inundation Dynamics in a Tropical Wetlands Complex," Remote Sensing, DOI:10.3390/rs10091431, 2018. [paper]
  2. Kim, H., V. Lakshmi, "Use of Cyclone Global Navigation Satellite System (CyGNSS) Observations for Estimation of Soil Moisture," Geophys. Res. Ltr., doi: 10.1029/2018GL078923, 2018. [paper]
  3. Carreno-Luengo, H., G. Luzi, M. Crosetto, "Sensitivity of CyGNSS Bistatic Reflectivity and SMAP Microwave Radiometry Brightness Temperature to Geophysical Parameters Over Land Surfaces," J. Sel. Top. Appl. Earth Obs. Remote Sens., doi: 10.1109/JSTARS.2018.2856588, 2018. [paper]
  4. Ruf, C.S., C. Chew, T. Lang, M.G. Morris, K. Nave, A. Ridley, R. Balasubramaniam, “A New Paradigm in Earth Environmental Monitoring with the CYGNSS Small Satellite Constellation,” Scientific Reports, doi: 10.1038/s41598-018-27127-4, 2018 [paper]
  5. Chew, C., J. T. Reader, E. Small, “CYGNSS data map flood inundation during the 2017 Atlantic hurricane season,” Scientific Reports, doi: 10.1038/s41598-018-27673-3, 2018. [paper]
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Mission Development

  1. Ruf, C., R. Balasubramaniam, “Development of the CYGNSS Geophysical Model Function for Wind Speed,” IEEE J. Sel. Topics Appl. Earth Obs. Remote Sens., doi: 10.1109/JSTARS.2018.2833075, 2018. [paper]
  2. Ruf, C., S. Gleason, D. S. McKague, “Assessment of CYGNSS Wind Speed Retrieval Uncertainty,” IEEE J. Sel. Topics Appl. Earth Obs. Remote Sens., doi: 10.1109/JSTARS.2018.2825948, 2018. [paper]
  3. S. Gleason, S., S. Ruf, A. O’Brien, D. S. McKague, “The CYGNSS Level 1 Calibration Algorithm and Error Analysis Based On On-Orbit Measurements,” IEEE J. Sel. Topics Appl. Earth Obs. Remote Sens., doi: 10.1109/JSTARS.2018.2832981, 2018. [paper]
  4. Bussy-Virat, C. D., C. S. Ruf, A. J. Ridley, “Relationship between temporal and spatial resolution for a constellation of GNSS-R satellites,” IEEE J. Sel. Topics Appl. Earth Obs. Remote Sens., doi: 0.1109/JSTARS.2018.2833426, 2018. [paper]
  5. Ruf, C., P. Chang, M.P. Clarizia, S. Gleason, Z. Jelenak, J. Murray, M. Morris, S. Musko, D. Posselt, D. Provost, D. Starkenburg, V. Zavorotny, "CYGNSS Handbook," Ann Arbor, MI, Michigan Pub., ISBN 978-1-60785-380-0, 154 pp, 1 Apr 2016. [handbook]
  6. Clarizia, M. P., Ruf, C.; Jales, P. and Gommenginger, C., “Spaceborne GNSS-R Minimum Variance Wind Speed Estimator,” IEEE Trans Geosci. Remote Sens., 52(11), 6829-6843, doi: 10.1109/TGRS.2014.2303831, Nov. 2014. [paper]
  7. Ruf, C., A. Lyons, M. Unwin, J. Dickinson, R. Rose, D. Rose and M. Vincent, “CYGNSS: Enabling the Future of Hurricane Prediction,” IEEE Geosci. Remote Sens. Mag., Vol. 1, No. 2, 52-67, doi: 10.1109/MGRS.2013.2260911, 2013. [paper]
  8. Ruf, C., A. Lyons and A. Ward, “NASA Intensifies Hurricane Studies with CYGNSS,” The Earth Observer, NASA, Vol. 25, Issue 3, 12-21, May-June 2013. [paper]
  9. Park, J., J. T. Johnson, Y. Yi, A. J. O’Brien, “Using “Rapid Revisit” CYGNSS Wind Speed Measurements to Detect Convective Activity,” IEEE J. Sel. Topics Appl. Earth Obs. Remote Sens., doi: 10.1109/JSTARS.2018.2848267, 2018. [paper]
  10. Clarizia, M., and C. Ruf, “Bayesian Wind Speed Estimation Conditioned on Significant Wave Height for GNSS-R Ocean Observations,” J.  Atmos. Oceanic Techn., doi:10.1175/JTECH-D-16-0196.1, 34(6), 1193-1202, 2017. [paper]
  11. Clarizia, M. P., and C. S. Ruf, “On the Spatial Resolution of GNSS-Reflectometry,” IEEE Geosci. Remote Sens. Ltrs., doi:10.1109/LGRS.2016.2565380, 2016. [paper]
  12. Clarizia, M. P., and C. S. Ruf, “Wind Speed Retrieval Algorithm for the Cyclone Global Navigation Satellite System (CYGNSS) Mission,” IEEE Trans Geosci. Remote Sens., 54(8), doi:10.1109/TGRS.2016.2541343, Aug. 2016. [paper]
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Mission Precursors

  1. Clarizia, M. P., "Investigating the Effect of Ocean Waves on GNSS-R Microwave Remote Sensing Measurements," Ph.D. diss., Univ. Southampton, 258 pp, 2012. [ paper]
  2. Gleason, S., “Remote Sensing of Ocean, Ice and Land Surfaces Using Bistatically Scattered GNSS Signals from Low Earth Orbit,” Ph.D. diss., University of Surrey, UK, 213 pp, 2006. [paper]
  3. Katzberg, S. J., J. Dunion, and G. G. Ganoe, "The use of reflected GPS signals to retrieve ocean surface wind speeds in tropical cyclones," Radio Sci., 48, 371­387, doi:10.1002/rds.20042, 2013. [paper]
  4. Garrison, J. L., A. Komjathy, V. U. Zavorotny and S. J. Katzberg, “Wind Speed Measurement Using Forward Scattered GPS Signals,” IEEE Transactions on Geoscience and Remote Sensing, Vol. 40, No. 1, January 2002. [paper]
  5. Katzberg, S.J., R.A.Walker, J. H. Roles, T. Lynch, and P.G. Black, “First GPS signals reflected from the interior of a tropical storm: Preliminary results from Hurricane Michael,” Geophysical Research Letters, Vol. 28. No. 10, May 15, 2001. [paper]
  6. Zavorotny, V. U. and A. G. Voronovich, “Scattering of GPS Signals from the Ocean with Wind Remote Sensing Application,” IEEE Transactions on Geoscience and Remote Sensing, Vol. 38, No. 2, March 2000. [paper]
  7. Garrison, J.L. and S.J. Katzberg, "Effect of sea roughness on bistatically scattered range coded signals from the Global Positioning System," Geophysical Research Letters, Vol. 25, No.13, pp 2257-2260, July 1, 1998. [paper]
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Related Publications

  1. Clarizia, M.P., C. Ruf, P. Cipollini and C. Zuffada, “First Spaceborne Observation of Sea Surface Height Using GPS Reflectometry," Geophysical Research Letters, Vol. 43, doi:10.1002/2015GL066624, 2016. [paper]
  2. Murray, J., C. Ruf, N. Baker, T. Lang, E. Uhlhorn, D. Masters, G. Halliwell, K. Carey, D. Helms, V. Escobar, W. McCarty, D.S. Green, T. Stough and A. Molthan, “Report on the NASA CYGNSS Mission Applications Workshop,” May 2015. [paper]
  3. Clarizia, M. P., C. Gommenginger, M. Di Bisceglie, C. Galdi and M. A. Srokosz, “Simulation of L-Band Bistatic Returns from the Ocean Surface: A Facet Approach With Application to Ocean GNSS Reflectometry,” IEEE Transactions on Geoscience and Remote Sensing, Vol. 50, No. 3, March 2012. [paper]
  4. Gleason, S., C. Gommenginger and D. Cromwell, “Fading Statistics and Sensing Accuracy of Ocean Scattered GNSS and Altimetry Signals,” Journal of Advances in Space Research, Vol. 46, Issue 2, 2010. [paper]
  5. Clarizia, M. P., C. P. Gommenginger, S. T. Gleason, M. A. Srokosz, C. Galdi, and M. Di Bisceglie, “Analysis of GNSS-R Delay-Doppler Maps from the UK-DMC Satellite over the Ocean,” Geophysical Research Letters, Vol. 36, L02608, doi:10.1029/2008GL036292, 2009. [paper]
  6. Katzberg, S. J., O. Torres, and G. Ganoe, “Calibration of Reflected GPS for Tropical Storm Wind Speed Retrievals,” Geophysical Research Letters, Vol. 33, L18602, doi:10.1029/2006GL026825, September 2006. [paper]
  7. Gleason, S., S. Hodgart, Y. Sun, C. Gommenginger, S. Mackin, M. Adjrad, and M. Unwin, “Detection and Processing of Bistatically Reflected GPS Signals from Low Earth Orbit for the Purpose of Ocean Remote Sensing,” IEEE Transactions on Geoscience and Remote Sensing, Vol. 43, No. 6, June 2005. [paper]
  8. Komjathy, A., M. Armatys, D. Masters, P. Axelrad, V. Zavorotny, S. Katzberg, “Retrieval of Ocean Surface Wind Speed and Wind Direction Using Reflected GPS Signals,” Journal of Atmospheric and Oceanic Technology, 21(3), 515-526, 2004. [paper]
  9. Li, W., E. Cardellach, F. Fabra, “First Spaceborne Phase Altimetry over Sea Ice Using TechDemoSat-1 GNSS-R Signals,” Geophys. Res. Ltrs., doi: 10.1002/2017gl074513, 2017. [paper]
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NASA Ames Research Center
University of Michigan
Southwest Research Institute of Texas
Surrey Satellite Technology of Colorado