Peer-review Publications

• Rodriguez-Alvarez, N.; Oudrhiri, K. "The Bistatic Radar as an Effective Tool for Detecting and Monitoring the Presence of Phytoplankton on the Ocean Surface". Remote Sens. 2021, 13, 2248. https://doi.org/10.3390/rs13122248
• J. F. Munoz-Martin, N. Rodriguez-Alvarez, X. Bosch-Lluis and K. Oudrhiri, "Stokes Parameters Retrieval and Calibration of Hybrid Compact Polarimetric GNSS-R Signals," in IEEE Transactions on Geoscience and Remote Sensing, vol. 60, pp. 1-11, 2022, Art no. 5113911, doi: 10.1109/TGRS.2022.3178578.
• J. F. Munoz-Martin, N. Rodriguez-Alvarez, X. Bosch-Lluis and K. Oudrhiri, "Detection Probability of Polarimetric GNSS-R Signals," in IEEE Geoscience and Remote Sensing Letters, vol. 20, pp. 1-5, 2023, Art no. 3500905, doi: 10.1109/LGRS.2023.3236601.
• J. F. Munoz-Martin, N. Rodriguez-Alvarez, X. Bosch-Lluis and K. Oudrhiri, “Analysis of polarimetric GNSS-R Stokes parameters of the Earth's land surface”, in Remote Sensing of Environment. Volume 287, 2023, 113491, ISSN 0034-4257, doi.org/10.1016/j.rse.2023.113491.
• N. Rodriguez-Alvarez, J.F. Munoz-Martin, X., Bosch-Lluis, K. Oudrhiri, D. Entekhabi, and A. Colliander, The first polarimetric GNSS-Reflectometer instrument in space improves the SMAP mission’s sensitivity over densely vegetated areas. Scientific Reports 13, 3722 (2023). https://doi.org/10.1038/s41598-023-30805-7
• J.F. Munoz-Martin, N. Rodriguez-Alvarez, X. Bosch-Lluis and K. Oudrhiri, “Effective Surface Roughness Impact in Polarimetric GNSS-R Soil Moisture Retrievals". Remote Sens. 2023, 15, 2013. https://doi.org/10.3390/rs15082013
• J. F. Munoz-Martin, X. Bosch-Lluis, N. Rodriguez-Alvarez and K. Oudrhiri, "Calibration Strategy for Compact Polarimetric GNSS-R Instruments," in IEEE Transactions on Geoscience and Remote Sensing, doi: 10.1109/TGRS.2023.3266602.
• N. Rodriguez-Alvarez, J.F. Munoz-Martin, and M. Morris, Latest Advances in the Global Navigation Satellite System—Reflectometry (GNSS-R) Field. Remote Sens. 2023, 15, 2157. https://doi.org/10.3390/rs15082157
• N. Rodriguez-Alvarez, J. F. Munoz-Martin, X. Bosch-Lluis and K. Oudrhiri, "A Hybrid Compact Polarimetry GNSS-R Analysis of the Earth’s Cryosphere," in IEEE Transactions on Geoscience and Remote Sensing, vol. 61, pp. 1-15, 2023, Art no. 4301615, doi: 10.1109/TGRS.2023.3280363.
• J. F. Munoz-Martin, N. Rodriguez-Alvarez, S. Yueh, X. Bosch-Lluis and K. Oudrhiri, "SMAP Antenna Pointing Error Estimation Using GNSS-Reflectometry," in IEEE Geoscience and Remote Sensing Letters, vol. 21, pp. 1-5, 2024, Art no. 3503005, doi: 10.1109/LGRS.2024.3369016.
• J. Garcia-Cardona, N. Rodriguez-Alvarez, J. F. Munoz-Martin, X. Bosch-Lluis and K. Oudrhiri,. Enhancing Soil Moisture Active–Passive Estimates with Soil Moisture Active–Passive Reflectometer Data Using Graph Signal Processing. Remote Sens. 2024, 16, 1397. https://doi.org/10.3390/rs16081397
• A. Perez-Portero, J. F. Munoz-Martin, N. Rodriguez-Alvarez, X. Bosch-Lluis, and K. Oudrhiri, “Forward and backward full-pol scattering analysis using SMAP reflectometer and radar datasets,” Remote Sens. Environ., vol. 309, p. 114211, Aug. 2024, doi: 10.1016/j.rse.2024.114211.
• A. Perez-Portero, N. Rodriguez-Alvarez, J. F. Munoz-Martin, X. Bosch-Lluis, and K. Oudrhiri, “Estimating Backward Scattering using GNSS-Reflectometry Measurements for Soil Moisture Retrieval,” IEEE Access, pp. 1–1, 2024, doi: 10.1109/ACCESS.2024.3404336.
• N. Rodriguez-Alvarez, J. Francesc Munoz-Martin, X. Bosch-Lluis and K. Oudrhiri, "Full Polarimetric GNSS-R Assessment of the Freeze and Thaw States of the Terrestrial Cryosphere," in IEEE Transactions on Geoscience and Remote Sensing, vol. 62, pp. 1-11, 2024, Art no. 4301711, doi: 10.1109/TGRS.2024.3408054
• J. F. Munoz-Martin, N. Rodriguez-Alvarez, X. Bosch-Lluis and K. Oudrhiri, "Scattering Matrix Retrieval Using Full Polarimetric GNSS-R", in IEEE Transactions on Geoscience and Remote Sensing, vol. 62, pp. 1-15, 2024, Art no. 5107015, doi: 10.1109/TGRS.2024.3414261
• N. Rodriguez-Alvarez; Jand A. Kruczkiewicz, Towards a Flood Assessment Product for the Humanitarian and Disaster Management Sectors Based on GNSS Bistatic Radar Measurements. Climate 2022, 10, 77.
• N. Rodriguez-Alvarez; Jao, J.S.; Munoz-Martin, J.F.; Lee, C.G.; Oudrhiri, K. Feed-Forward Neural Network Denoising Applied to Goldstone Solar System Radar Images. Remote Sens. 2022, 14, 1643.
• N. Rodriguez-Alvarez et al., "The Improved Capabilities of the Goldstone Solar System Radar Observatory," in IEEE Transactions on Geoscience and Remote Sensing, vol. 60, pp. 1-15, 2022, Art no. 5103415
• N. Rodriguez-Alvarez; Misra, S.; Morris, M. The Polarimetric Sensitivity of SMAP-Reflectometry Signals to Crop Growth in the U.S. Corn Belt. Remote Sens. 2020, 12, 1007.
• N. Rodriguez-Alvarez, S. Misra, E. Podest, M. Morris and X. Bosch-Lluis, The Use of SMAP-Reflectometry in Science Applications: Calibration and Capabilities, Remote Sensing, 2019, 11 2442. https://doi.org/10.3390/rs11202442
• N. Rodriguez-Alvarez, B. Holt, S. Jaruwatanadilok, E. Podest and K. Cavanaugh, An Arctic sea ice multi-step classification based on GNSS-R data from the TDS-1 mission, Remote Sensing of the environment, Remote Sensing of Environment 230C, 111202, September 2019. Available online from May 27, 2019. DOI: https://doi.org/10.1016/j.rse.2019.05.021
• N. Rodriguez-Alvarez, E. Podest, K. Jensen and K. McDonald, Classifying Inundation in a Tropical Wetlands Complex with GNSS-R, Remote Sens. 2019, 11, 1053. https://doi.org/10.3390/rs11091053
• Jensen, K.; McDonald, K.; Podest, E.; N. Rodriguez-Alvarez.; Horna, V.; Steiner, N. Assessing L-Band GNSS-Reflectometry and Imaging Radar for Detecting Sub-Canopy Inundation Dynamics in a Tropical Wetlands Complex. Remote Sens. 2018, 10, 1431.
• F. Huang, J.L. Garrison, N. Rodriguez-Alvarez, A. O’Brien, K. M. Schoenfeldt, and S. C. Ho, Sequential Processing of GNSS-R Delay-Doppler Maps to Estimate the Ocean Surface Wind Field, IEEE Transactions on Geoscience and Remote Sensing (Accepted July 24, 2019).
• N. Rodriguez-Alvarez, and J.L. Garrison, Generalized Linear Observables for Ocean Wind Retrieval From Calibrated GNSS-R Delay-Doppler Maps, IEEE Transactions on Geoscience and Remote Sensing, IEEE Transactions on Geoscience and Remote Sensing, vol. 54, no. 2, pp. 1142-1155, Feb. 2016. DOI: 10.1109/TGRS.2015.2475317
• N. Rodriguez-Alvarez, D. M. Akos, V. U. Zavorotny, J. A. Smith, A. Camps, C. W. Fairall, Airborne GNSS-R wind retrievals using delay-Doppler maps, IEEE Transactions on Geoscience and Remote Sensing.Vol51, No. 1, pp. 626-641, January 2013.
• N. Rodriguez-Alvarez, X. Bosch-Lluis, A. Camps, M. Vall-llossera, E. Valencia, J. F. Marchan-Hernandez, I. Ramos-Perez, Soil Moisture Retrieval Using GNSS-R Techniques: Experimental Results Over a Bare Soil Field, IEEE Transactions on Geoscience and Remote Sensing, vol.47, no.11, pp.3616-3624, Nov. 2009.
• N. Rodriguez-Alvarez, A. Camps, M. Vall-llossera, X. Bosch-Lluis, A. Monerris, I. Ramos-Perez, E. Valencia, J. F. Marchan-Hernandez, J. Martinez-Fernandez, G. Baroncini-Turricchia, C. Perez-Gutierrez, N. Sanchez, Land Geophysical Parameters Retrieval Using the Interference Pattern GNSS-R Technique, IEEE Transactions on Geoscience and Remote Sensing, vol.49, no.1, pp.71-84, Jan. 2011.
• N. Rodriguez-Alvarez, A. Aguasca, E. Valencia,X. Bosch-Lluis, A. Camps, I. Ramos-Perez, H. Park, M. Vall-llossera, Snow Thickness Monitoring Using GNSS Measurements, IEEE Geoscience and Remote Sensing Letters. Vol. 9, Issue. 6, pp. 1109-1113, November 2012.
• N. Rodriguez-Alvarez, X. Bosch-Lluis, A. Camps, A., I. Ramos-Perez, E. Valencia, H. Park, M. Vall-llossera, Vegetation Water Content Estimation Using GNSS Measurements, IEEE Geoscience and Remote Sensing Letters, 2011.
• N. Rodriguez-Alvarez, X. Bosch-Lluis, A. Camps, A. Aguasca, M. Vall-llossera, E. Valencia, I. Ramos-Perez, and H. Park, Review of crop growth and soil moisture monitoring from a ground-based instrument implementing the Interference Pattern GNSS-R Technique, Radio Science, 46, RS0C03, 2011.
• J.F. Marchan-Hernandez, N. Rodriguez-Alvarez, Camps, A.; Bosch-Lluis, X.; Ramos-Perez, I.; Valencia, E., Correction of the Sea State Impact in the L-Band Brightness Temperature by Means of Delay-Doppler Maps of Global Navigation Satellite Signals Reflected Over the Sea Surface, IEEE Transactions on Geoscience and Remote Sensing, vol.46, no.10, pp.2914-2923, Oct. 2008
• E. Valencia, A. Camps, N. Rodriguez-Alvarez, H. Park and I. Ramos-Perez, "Using GNSS-R Imaging of the Ocean Surface for Oil Slick Detection," in IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, vol. 6, no. 1, pp. 217-223, Feb. 2013.
• J. F. Marchan-Hernandez, E. Valencia, N. Rodriguez-Alvarez, I. Ramos-Perez, X. Bosch-Lluis, A. Camps, F. Eugenio and J. Marcello, "Sea-State Determination Using GNSS-R Data," in IEEE Geoscience and Remote Sensing Letters, vol. 7, no. 4, pp. 621-625, Oct. 2010.
• J. F. Marchan-Hernandez, A. Camps, N. Rodriguez-Alvarez, E. Valencia, X. Bosch-Lluis and I. Ramos-Perez, "An Efficient Algorithm to the Simulation of Delay-Doppler Maps of Reflected Global Navigation Satellite System Signals," in IEEE Transactions on Geoscience and Remote Sensing, vol. 47, no. 8, pp. 2733-2740, Aug. 2009.
• X. Bosch-Lluis, I. Ramos-Perez, A. Camps, N. Rodriguez-Alvarez, E. Valencia and H. Park, "Common Mathematical Framework for Real and Synthetic Aperture by Interferometry Radiometers," in IEEE Transactions on Geoscience and Remote Sensing, vol. 52, no. 1, pp. 38-50, Jan. 20.
• Rodriguez-Alvarez, N.; Jao, J.S.; Munoz-Martin, J.F.; Lee, C.G.; Oudrhiri, K. Feed-Forward Neural Network Denoising Applied to Goldstone Solar System Radar Images. Remote Sens. 2022, 14, 1643. https://doi.org/10.3390/rs14071643
• C. G. Lee et al., "Cis-lunar Space Debris Radar Capability and Feasibility," 2023 IEEE Aerospace Conference, Big Sky, MT, USA, 2023, pp. 1-12, doi: 10.1109/AERO55745.2023.10115570.
• Y. -M. “. Yang et al., "Towards Cis-Lunar Target Detection using the Deep Space Network and Open-Loop Tracking Measurements," 2023 IEEE Aerospace Conference, Big Sky, MT, USA, 2023, pp. 1-7, doi: 10.1109/AERO55745.2023.10115612.
• N. Rodriguez-Alvarez, C. Lee, J. S. Jao, Y. -M. Yang, W. Majid and K. Oudrhiri, "Improved Cislunar Object Detection Using Polyphase Filter Bank and Polarimetry from Bistatic Radar," 2024 IEEE Aerospace Conference, Big Sky, MT, USA, 2024, pp. 1-8, doi: 10.1109/AERO58975.2024.10521269
• Y. -M. O. Yang, C. G. Lee, J. S. Jao, N. Rodriguez-Alvarez, W. Majid and K. Oudrhiri, "Investigation of Background Clutter Removal and Impacts on Cis-Lunar Target Detection and Tracking Using DSN Open-Loop Tracking Measurements," 2024 IEEE Aerospace Conference, Big Sky, MT, USA, 2024, pp. 1-7, doi: 10.1109/AERO58975.2024.10521031
• N. Rodriguez-Alvarez, J. F. Munoz-Martin, X. Bosch-Lluis and K. Oudrhiri, "Introduction to the new SMAP-Reflectometry (SMAP-R) Dataset: Status and Science Capabilities," IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium, 2022, pp. 7624-7627, doi: 10.1109/IGARSS46834.2022.9883947.
• X. Bosch-Lluis, J. F. Munoz-Martin, N. Rodriguez-Alvarez and K. Oudrhiri, "Towards GNSS-R Hybrid Compact Polarimetry: Introducing the Stokes Parameters for SMAP-R Dataset," IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium, 2022, pp. 7425-7428, doi: 10.1109/IGARSS46834.2022.9883341..
• J. F. Munoz-Martin, N. Rodriguez-Alvarez, X. Bosch-Lluis and K. Oudrhiri, "Full Calibration of the SMAP-R Dataset," IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium, 2022, pp. 7437-7440, doi: 10.1109/IGARSS46834.2022.9884154..
• J. F. Munoz-Martin, N. Rodriguez-Alvarez, X. Bosch-Lluis and K. Oudrhiri, "Initial Evaluation of SMAP-R Polarimetry Over Land," IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium, 2022, pp. 5788-5791, doi: 10.1109/IGARSS46834.2022.9883261.
• N. Rodriguez-Alvarez, J. F. Munoz-Martin, X. Bosch-Lluis and K. Oudrhiri, "Initial Evaluation of Freeze/Thaw State and Sea Ice Detection Using the SMAP-R Dataset," IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium, 2022, pp. 3876-3879, doi: 10.1109/IGARSS46834.2022.9883525.
• W. Berg, C. Kummerow, M. Sapiano,N. Rodriguez-Alvarez, and F. Weng, âĂIJA Fundamental Climate Data Record of Microwave Brightness Temperature Data from 25 Years of SSM/I and SSMIS Observations in Global Energy and Water Exchanges, GEWEX, vol. 22, no.3, pp. 4-5, August 2012.
• E. Valencia, A. Camps, X. Bosch-Lluis, N. Rodriguez-Alvarez, I. Ramos-Perez, F. Eugenio and J. Marcello, "On the Use of GNSS-R Data to Correct L-Band Brightness Temperatures for Sea-State Effects: Results of the ALBATROSS Field Experiments," in IEEE Transactions on Geoscience and Remote Sensing, vol. 49, no. 9, pp. 3225-3235, Sept. 2011.
• E. Valencia, A. Camps, J. F. Marchan-Hernandez, N. Rodriguez-Alvarez, I. Ramos-Perez and X. Bosch-Lluis, "Experimental Determination of the Sea Correlation Time Using GNSS-R Coherent Data," in IEEE Geoscience and Remote Sensing Letters, vol. 7, no. 4, pp. 675-679, Oct. 2010.
• I. Ramos-Perez, X. Bosch-Lluis, A. Camps, V. Gonzalez, N. Rodriguez-Alvarez, E. Valencia, H. Park, M. Vall llosera and G. F. Forte, "Optimum Intercalibration Time in Synthetic Aperture Interferometric Radiometers: Application to SMOS," in IEEE Geoscience and Remote Sensing Letters, vol. 9, no. 4, pp. 774-777, July 2012.
• I. Ramos-Perez, G. F. Forte, A. Camps, X. Bosch-Lluis, E. Valencia, N. Rodriguez-Alvarez, H. Park and M. Vall-llossera, "Calibration, Performance, and Imaging Tests of a Fully Digital Synthetic Aperture Interferometer Radiometer," in IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, vol. 5, no. 3, pp. 723-734, June 2012.
• E. Valencia, A. Camps, J.F. Marchan-Hernandez, H. Park, X. Bosch-Lluis, N. Rodriguez-Alvarez and I. Ramos-Perez, "Ocean Surface’s Scattering Coefficient Retrieval by Delay-Doppler Map Inversion," in IEEE Geoscience and Remote Sensing Letters, vol. 8, no. 4, pp. 750-754, July 2011.
• A. Camps, X. Bosch-Lluis, I. Ramos-Perez, J. F. Marchan-Hernandez, B. Izquierdo and N. Rodriguez-Alvarez, "New Instrument Concepts for Ocean Sensing: Analysis of the PAU-Radiometer," in IEEE Transactions on Geoscience and Remote Sensing, vol. 45, no. 10, pp. 3180-3192, Oct. 2007

Abstracts

• N. Rodriguez-Alvarez and K. Oudrhiri (2021), Bistatic Radar: A New Path To The Detection And Monitoring Of Phytoplankton Blooms, OS53A-02, presented at 2021 Fall Meeting, AGU, New Orleans, LA, 13-17 Dec
• N. Rodriguez-Alvarez, K. Oudrhiri, and J. F. Munoz-Martin (2022), "Observation of Algal Blooms on the Gulf of Mexico at the Mississippi River Delta with Bistatic Radar", GH41B-01, presented at 2022 Fall Meeting, AGU, Chicago, IL, 12-16 Dec
• N. Rodriguez-Alvarez, K. Oudrhiri, J. F. Munoz-Martin, and X. Bosch-Lluis "Advances on the Use of GNSS-R signals for the Detection, Monitoring and Biomass Characterization of Algal Blooms", IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium, 2023 (Accepted - Oral)
• N. Rodriguez-Alvarez, J. F. Munoz-Martin, X. Bosch-Lluis and K. Oudrhiri (2022), "Sea Ice Characterization using Polarimetric GNSS-R from the SMAP-R Dataset", C11C-06, presented at 2022 Fall Meeting, AGU, Chicago, IL, 12-16 Dec (Accepted - Oral)
• J. F. Munoz-Martin, N. Rodriguez-Alvarez, X. Bosch-Lluis and K. Oudrhiri (2022), "Soil Moisture Retrieval using Polarimetric GNSS-R from the SMAP-R Dataset", H15G-08, presented at 2022 Fall Meeting, AGU, Chicago, IL, 12-16 Dec (Accepted - Oral)
• N. Rodriguez-Alvarez, J. F. Munoz-Martin, X. Bosch-Lluis and K. Oudrhiri, "SMAP-Reflectometry: Advances on Sea Ice and Ice Sheet Thickness Studies with Polarimetric GNSS-R". Abstract submitted to GNSS+R 2023 Conference, Boulder, Colorado, US, May 2023. (Accepted - Oral)
• J. F. Munoz-Martin, N. Rodriguez-Alvarez, X. Bosch-Lluis and K. Oudrhiri, "SMAP-Reflectometry: Dataset, Calibration and Sensitivities to Geophysical Parameters of Compact Polarimetric GNSS-R", Abstract submitted to GNSS+R 2023 Conference, Boulder, Colorado, US, May 2023. (Accepted - Oral)
• N. Rodriguez-Alvarez, J. F. Munoz-Martin, X. Bosch-Lluis and K. Oudrhiri, "Using SMAP-Reflectometry Measurements to Understand the Benefits of GNSS-R Polarimetry", IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium, 2023 (Accepted - Oral)
• J. F. Munoz-Martin, N. Rodriguez-Alvarez, X. Bosch-Lluis and K. Oudrhiri, "Soil Moisture Estimation Performance of Polarimetric GNSS-R", IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium, 2023 (Accepted - Oral)
• J. F. Munoz-Martin, N. Rodriguez-Alvarez, X. Bosch-Lluis and K. Oudrhiri, "Polarimetric Requirements for Future GNSS-R Missions", IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium, 2023 (Accepted - Oral)
• X. Bosch-Lluis, N. Rodriguez-Alvarez, J. F. Munoz-Martin and K. Oudrhiri, "The Use of Polarimetric GNSS-Reflectometry for Deforestation and Forest Degradation", IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium, 2023 (Accepted - Oral)
• N. Rodriguez-Alvarez, J. F. Munoz-Martin, X. Bosch-Lluis and K. Oudrhiri, "Polarimetric GNSS-R: Learning from SMAP-R measurements", in IEEE GRSS MAMI WATA Workshop, Nov 11 - Dec 1, 2023 (Accepted - Oral)
• J. F. Munoz-Martin, N. Rodriguez-Alvarez, X. Bosch-Lluis and K. Oudrhiri, "SMAP-Reflectometry: Dataset, Calibration and Sensitivities to Geophysical Parameters of Polarimetric GNSS-R", H13M-1634 presented at 2024 Fall Meeting, AGU, San Francisco, CA, 11-15 Dec (Accepted - Poster)
• X. Bosch-Lluis, N. Rodriguez-Alvarez, J.F. Munoz-Martin, K. Oudrhiri, “SMAP-Reflectometer Sensitivity Analysis to Ocean Winds”, IGARSS 2024 - 2024 IEEE International Geoscience and Remote Sensing Symposium, (Accepted - Oral).
• N. Rodriguez-Alvarez, J.F. Munoz-Martin, X. Bosch-Lluis, K. Oudrhiri, “Status of the SMAP-Reflectometry Dataset”, IGARSS 2024 - 2024 IEEE International Geoscience and Remote Sensing Symposium, (Accepted - Poster)
• N. Rodriguez-Alvarez, K. Oudrhiri, J.F. Munoz-Martin, X. Bosch-Lluis, “Overcoming Limitations of GNSS-R Surfactant Characterization with Polarimetric GNSS-R”, IGARSS 2024 - 2024 IEEE International Geoscience and Remote Sensing Symposium, (Accepted - Oral)
• J.F. Munoz-Martin, N. Rodriguez-Alvarez, X. Bosch-Lluis, K. Oudrhiri, “Sea Ice Thickness Monitoring from Space Using Polarimetric GNSS-R”, IGARSS 2024 - 2024 IEEE International Geoscience and Remote Sensing Symposium, (Accepted - Oral)