gAGE : Advanced GNSS Research and Innovative Applications

2011

• Manuel Hernández-Pajares, J. Miguel Juan, Jaume Sanz, Angela Aragon-Angel,  Alberto García Rigo, Dagoberto salazar, Miquel Escudero, (2011), "The ionosphere: effects, GPS modeling and the benefits for space geodetic techniques", Journal of Geodesy, DOI 10.1007/s00190-011-0508-5.
• Aragon-Angel, A., Y.-A. Liou, C.-C. Lee, B. W. Reinisch, M. Hernández-Pajares, M. Juan, and J. Sanz (2011), Improvement of retrieved FORMOSAT-3/COSMIC electron densities validated by ionospheric sounder measurements at Jicamarca, Radio Sci., 46, RS5001, doi:10.1029/2010RS004578.
• C. Brunini, F. Azpilicueta, M.Gende, E. Camilon, A.Aragón-Angel, M. Hernández-Pajares, J.M. Juan, J. Sanz, D. Salazar (2011) "Ground- and space-based GPS data ingestion into the NeQuick model", Journal of Geodesy, December 2011, Volume 85, Issue 12, pp 931-939
• D. Salazar, M. Hernández-Pajares, JM. Juan-Zornoza, J. Sanz-Subirana, A. Aragón-Angel, "EVA: GPS-based extended velocity and acceleration determination", Journal of Geodesy, Vol.  85, 2011.
• Elizabeth J. Petrie, Manuel Hernandez-Pajares, Paolo Spalla, Philip Moore, Matt A. King, "A Review of Higher Order Ionospheric Refraction Effects on Dual Frequency GPS", Surveys in Geophysics Volume 32, Number 3, 2011. 197-253, DOI: 10.1007/s10712-010-9105-z

2010

• D. Salazar, M. Hernández-Pajares, J.M. Juan, J. Sanz, "GNSS Data Management and Processing with the GPSTk", GPS Solutions, Vol.  14(3), pp. 293-299, 2010 (doi 10.1007/s10291-009-0149-9).
• Angela Aragon-Angel, Manuel Hernandez-Pajares, J. Miguel Juan Zornoza, Jaume Sanz Subirana, "Improving the Abel transform inversion using bending angles", GPS Solutions (2010), Volume 14, Number 1, 23-33, DOI: 10.1007/s10291-009-0147-y
• Manuel Hernández-Pajares, J. Miguel Juan, Jaume Sanz, Angela Aragon-Angel, Pere Ramos-Bosch, Dennis Odijk, Peter Teunissen, Jaron Samson, Michel Tossaint and Michelangelo Albertazzi., "Wide-Area RTK: High Precision Positioning on a Continental Scale", Inside GNSS, March/April 2010.
• Matt A. King, Zuheir Altamimi, Johannes Boehm, Machiel Bos, Rolf Dach, Pedro Elosegui, Francois Fund, Manuel Hernandez-Pajares, David Lavallee, Paulo Jorge Mendes Cerveira, Nigel Penna, Riccardo E. M. Riva, Peter Steigenberger, Tonie van Dam, Luca Vittuari, Simon Williams, Pascal Willis, "Improved Constraints on Models of Glacial Isostatic Adjustment: A Review of the Contribution of Ground-Based Geodetic Observations", Surv Geophys (2010), vol. 31, pp. 465-­507, DOI 10.1007/s10712-010-9100-4.

2009

• M. Hernández-Pajares, J. M. Juan, J. Sanz,  R. Orus, A. Garcia-Rigo, J. Feltens, A. Komjathy, S. Shaer, "The IGS VTEC maps: a reliable source of ionospheric information since 1998", Journal of Geodesy, Vol. 83, pp. 263-272, 2009 (DOI 10.1007/s00190-008-0266-1).
• A. Aragón-Angel, Manuel Hernández-Pajares, J. Miguel Juan Zornoza, J. Sanz, "Obtaining more accurate density profiles from bending angle with GPS ocultation data: FORMOSAT-3/COSMIC Constellation", Advances in Space Research, Vol. 43(11), pp.1694-1701, 2009.

2008

• Liou, Y.-A.; Hernandez-Pajares, M.; Chandrasekar, V.; Westwater, E. R.; Guest Editorial - Special Section on Meteorology, Climate, Ionosphere, Geodesy, and Reflections From the Ocean Surfaces: Studies by Radio Occultation Methods. "IEEE transactions on geoscience and remote sensing", Novembre 2008, vol. 46, núm. 11, p. 3363-3365. doi: 10.1109/TGRS.2008.2008049.
• Manuel Hernández-Pajares, J. Miguel Juan Zornoza, Jaume Sanz, "Comment on "A method for detecting ionospheric disturbances and estimating their propagation speed and direction using a large GPS network" by James L. Garrison et al., doi:10.1029/2008RS003830", Radio Science, Vol. 43, RS5003, 2008, (doi:10.1029/2008RS003830).

2007

• Manuel Hernández-Pajares, J. Miguel Juan Zornoza, Jaume Sanz, "Correction to Second-order ionospheric term in GPS: Implementation and impact on geodetic estimates", Journal of Geophysical Research, Solid Earth, Vol.113, pp.6407-6407, 2007.
• Alberto Garcia-Rigo, Manuel Hernández-Pajares, J. Miguel Juan Zornoza, Jaume Sanz, "Solar flare detection system based on global  positioning system data: First results", Advances in Space Research, Vol.39, pp. 889-895, 2007.
• Manuel Hernández-Pajares, J. Miguel Juan Zornoza, Jaume Sanz, "Second-order ionospheric term in GPS: Implementation and impact on geodetic estimates", Journal of Geophysical Research, Solid Earth, Vol.112, pp.1-16, 2007, (doi:10.1029/2006JB004707).
• Pere Ramos-Bosch, Manuel Hernández-Pajares, J. Miguel Juan, and Jaume Sanz, "Real time GPS Positioning of LEO Satellites Mitigating Pseudorange Multipath through Neural Networks", Navigation, Vol. 54 No. 4, 2007.
• M. Tossaint, J. Samson, F. Toran, J. Ventura-Traveset, M. Hernández-Pajares, J.M. Juan, J. Sanz and P. Ramos-Bosch, "Stanford - ESA Integrity Diagram: A New Tool for The User Domain SBAS Integrity Assessment", Navigation, Vol. 54 No. 2, 2007.
• R. Orus, L.R. Cander, and M. Hernandez-Pajares. Testing regional vertical total electron content maps over Europe during the 17-21 January 2005 sudden space weather event. Radio Science, Vol.42, R3004, May 2007.

2006

• Manuel Hernández-Pajares, J. Miguel Juan Zornoza, Jaume Sanz, "Medium Scale Traveling Disturbances Affecting GPS Measurements: Spatial and Temporal Analysis", Journal of Geophysical Research, Space Physics, Vol.111, A07-S11, 2006, (doi:10.1029/2005JA011471).
• Garcia-Fernández M, Hernández-Pajares M, Juan JM, Sanz, J, "Performance of the improved Abel transform to estimate electron density profiles from GPS occultation data", GPS Solutions, Vol.9(2), pp.105-110, 2006.

2005

• R. Orus, M. Hernández-Pajares, J.M. Juan, J. Sanz, "Improvement of global ionospheric VTEC maps by using kriging interpolation technique", Journal of Atmospheric and Solar-Terrestrial Physics, Vol.67, pp.1598-1609, 2005.
• Hernández-Pajares M., J.M. Juan, J. Sanz, S. Soley , "ESTB performance under the October  30th 2003 super storm", Space Communications, Vol. 20, 2005.
• Hernández-Pajares M., J.M. Juan, J. Sanz, S. Soley , "EGNOS Test Bed Ionospheric Corrections Under the October and November 2003 Storms", IEEE Transactions on Geoscience and Remote Sensing, Vol.43(10), pp.2283-2293, 2005.
• M. Garcia-Fernández, A. Saito, J. M. Juan, T. Tsuda, "Three-dimensional estimation of electron density over Japan using the GEONET GPS network combined with SAC-C data and ionosonde measurements", Journal of Geophysical Research, Space Physics, Vol. 110, A11304, 10 PP., 2005 (doi:10.1029/2005JA011037).
• M. Tossaint, J. Samson, F. Toran, J. Ventura Traveset, Hernández-Pajares M., J.M. Juan, J. Sanz, Tadjine and I. Delgado, "The Stanford-ESA Integrity Diagram: Focussing on SBAS Integrity". Book: EGNOS The European Geostationary Navigation Overlay System - A cornerstone of Galileo, pp. 55-70, ESA Publications Division, 2005, ISBN: 92-9092-453-5.
• M. Garc¡a Fernández ,A. Aragon, M. Hernández-Pajares, J.M. Juan, J. Sanz, V. Rios, "Ionospheric Tomography with GPS Data from CHAM Pand SAC-C", Book: Earth Observation with CHAMP, pp. 453-458, 2005, ISBN: 3-540-22804-7.
• E. Blanch, D. Altadill, J. Boska, D. Buresova, and M. Hernandez-Pajares. November 2003 event: Effects on the earth's ionosphere observed from ground-based ionosonde and gps data. Annales Geophysicae, 23(9):3027-3034, 2005.
• Miquel Garcia-Fernandez, Manuel Hernández‐Pajares, J M Juan, J. Sanz.  Performance of the improved Abel transform to estimate electron density profiles from GPS occultation data. GPS Solutions, 2005. Vol. 9, Num. 2, 105-110, DOI: 10.1007/s10291-005-0139-5 
  

2004

• M. Garc¡a-Fernández, M. Hernández-Pajares, J.M. Juan, J. Sanz, "Correction to Improvement of ionospheric electron density estimation with GPSMET occultations using Abel inversion and VTEC information", Journal of Geophysical Research, Vol. 109, pp. 4302, 2004.

2003

• Orus R., M. Hernández-Pajares, J.M. Juan, J. Sanz, and M. Garcia-Fernández, "Validation of the GPS TEC maps with TOPEX data", Advances in Space Research, Vol. 31(3) pp.621-627, 2003.
• Garcia-Fernández M., M. Hernández-Pajares, J.M. Juan, J. Sanz, "Improvement of ionospheric electron density estimation with GPSMET occultations using Abel inversion and VTEC information",  Journal of Geophysical Research - Space Physics, Vol.110, A11304, 10 pp., 2005, 3003,  (doi:10.1029/2005JA0110375).
• Hernández-Pajares M., J.M. Juan, J. Sanz, O.Colombo,  "Feasibility of Wide-Area Subdecimeter Navigation With GALILEO and Modernized GPS", IEEE Transactions on Geoscience and Remote Sensing, Vol.41(9), pp.2128-2131, 2003.
• Garc¡a-Fernández M., M. Hernández-Pajares, M. Juan, J. Sanz, R. Orus, P. Coisson, B. Nava, S.M. Radicella, "Combining Ionosonde with ground GPS data for Electron Density Estimation", Journal of Atmospheric and Solar-Terrestrial Physics, Vol.65 pp.683-691, 2003.
• Hernández-Pajares M., J.M. Juan, J. Sanz, O.Colombo, "Impact of real-time ionospheric determination on improving precise navigation with GALILEO and next-generation GPS", Navigation, Vol. 50(3), Fall 2003, pp. 205-218, 2003.
• Garc¡a-Fernández M., M. Hernández-Pajares, M. Juan, J. Sanz, "An improvement of retrieval techniques for ionospheric radio-occultations", Book: First CHAMP mission results for gravity, magnetic and atmospheric studies, pp. 430-440, 2003, ISBN: 3-540-00206-5.

2002

• Hernández-Pajares M., J.M. Juan, J. Sanz and O. Colombo, "Improving the real-time ionospheric determination from GPS sites at Very Long Distances over the Equator", Journal of Geophysical Research - Space Physics, Vol.107, pp.1296-1305, 2002, (doi: 10.1029/2001JA009203).
• Orus R., M. Hernández-Pajares, J.M. Juan, J. Sanz and M. Garcia, "Performance of different TEC models to provide ionospheric corrections", Journal of Atmospheric and Solar Terrestrial Physics, Vol. 64(18), pp. 2055-2062, 2002.
• Hernández-Pajares M., J.M. Juan, J. Sanz, and D. Bilitza, "Combining GPS measurements and IRI model values for Space Weather specification", Advances in Space Research, Vol. 29(6), pp. 949-958, 2002.
• M. Garc¡a-Fernández, M. Hernández-Pajares, J.M. Juan, J. Sanz, R. Orús, "Ionospheric data combination as a way to improve electron density Estimations", Acta Geodetica et Geophysica, Vol. 37(2-3), pp. 203-211, 2002.
• Colombo O., Hernández-Pajares M., J.M. Juan, J. Sanz, "Wide-Area, carrier-phase ambiguity resolution using a tomographic model of the Ionosphere", Navigation, Vol. 49(1) pp. 61-69, 2002.

2001

• Hernández-Pajares M., J.M. Juan, J. Sanz, O. Colombo, and H. van der Marel, "A new strategy for real-time integrated water vapor determination in WADGPS networks", Geophysical Research Letters, Vol. 28(17), pp. 3267-3270, 2001.

2000

• Hernández-Pajares M., J.M. Juan, J. Sanz, "Improving the Abel inversion by adding ground data LEO to radio occultations in the ionospheric sounding", Geophysical Research Letters Vol. 27(16), pp. 2743-2746, 2000.
• Hernández-Pajares M., J.M. Juan, J. Sanz, O. Colombo, "Application of ionospheric tomography to real-time GPS carrier-phase ambiguities resolution, at scales of 400-1000 km and with high geomagnetic activity", Geophysical Research Letters Vol. 27(13), pp. 2009-2012, 2000.
• O. Colombo, Hernández-Pajares M., Juan J.M., Sanz J., "Ionospheric tomography helps resolve GPS ambiguities On The Fly at distances of hundreds of kilometers during increased geomagnetic activity", IEEE Book, 2000, ISBN: 0-7803-4330-1.

1999

• Hernández-Pajares M., J.M. Juan, J. Sanz, "New approaches in global ionospheric determination using ground GPS data", Journal of Atmospheric and Solar Terrestrial Physics, Vol. 61, pp. 1237-1247, 1999.
• Bilitza D., M. Hernández-Pajares, J.M. Juan and J. Sanz, "Comparison between IRI and GPS-IGS derived electron content during 1991-97", Physics and Chemistry of the Earth Vol. 24(4), pp.311-319, 1999.

1998

• Hernández-Pajares M., J.M. Juan, J. Sanz and J.G. Solé, "Global observation of the ionospheric electronic response to solar events using ground and LEO GPS data", Journal of Geophysical Research-Space Physics, Vol. 103(A9), pp.20789-20796, 1998.
• Hernández-Pajares M.,Juan J.M.,Sanz J., "Application of the Kohonen maps to the GPS stochastic tomography of the ionosphere", Book: Data Science Classification and Related Methods, pp. 341-350, Springer-Verlag, 1998, ISBN: 84-95172-10-0.

1997

• Hernández-Pajares M.,Juan J.M., Sanz J., "Neural Network modeling of the Ionospheric Electron Content at Global Scale using GPS data", Radio Science Vol. 32(3), pp. 1081-1089, 1997.
• Hernández-Pajares M.,Juan J.M., Sanz J., "High resolution TEC monitoring method using permanent ground GPS receivers", Geophysical Research Letters, Vol. 24 (13), pp.1643-1646, 1997.
• Juan J.M., Rius A., Hernández-Pajares M., Sanz J., "A Two-Layer model of the Ionosphere using Global Positioning System data", Geophysical Research Letters Vol. 24(4), pp.393-396, 1997.

1995

• Rius A., Juan J.M., Hernández-Pajares M., Madrigal A., "Measuring geocentric radial coordinates with a non-fiducial GPS network", Journal of Geodesy (formerly Bulletin Geodesique), Vol. 69 (4), pp. 320-328., 1995.
• F. Mutagh, M. Hernández-Pajares, The Kohonem Self-Organizing Map Method: As Assessment. Journal Of Classification, Vol 12, pp.165-190, 1995