selected publications
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conference proceeding
- Signal Polarization Selection for GPS-IR Remote Sensing-Theoretical Analysis and Experimental Results. 3958-3968. 2015
- GPS GROUND NETWORKS FOR WATER CYCLE SENSING. 3822-3825. 2014
- Time transfer using the phase of the GPS carrier. 292-297. 1998
- A STUDY OF REAL TIME ORBIT DETERMINATION FOR THE EXTREME ULTRAVIOLET EXPLORER. 625-634. 1994
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journal article
- Brief Communication: Update on the GPS reflection technique for measuring snow accumulation in Greenland. The Cryosphere. 1985-1988. 2020
- Design and Preliminary Testing of the Volcanic Ash Plume Receiver Network. Journal of Atmospheric and Oceanic Technology. 353-367. 2019
- GPS Interferometric Reflectometry Reveals Cyclic Elevation Changes in Thaw and Freezing Seasons in a Permafrost Area (Barrow, Alaska). Geophysical Research Letters. 5581-5589. 2018
- Vegetation Response to the 2012-2014 California Drought from GPS and Optical Measurements. Remote Sensing. 2018
- Decadal changes of surface elevation over permafrost area estimated using reflected GPS signals. The Cryosphere. 477-489. 2018
- GPS-derived estimates of surface mass balance and ocean-induced basal melt for Pine Island Glacier ice shelf, Antarctica. The Cryosphere. 2655-2674. 2017
- Detection of plumes at Redoubt and Etna volcanoes using the GPS SNR method. Journal of Volcanology and Geothermal Research. 26-39. 2017
- Snow accumulation variability on a West Antarctic ice stream observed with GPS reflectometry, 2007-2017. Geophysical Research Letters. 7808-7816. 2017
- A 10-Year Comparison of Water Levels Measured with a Geodetic GPS Receiver versus a Conventional Tide Gauge. Journal of Atmospheric and Oceanic Technology. 295-307. 2017
- An Assessment of the Precision and Accuracy of Altimetry Retrievals for a Monterey Bay GNSS-R Experiment. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. 4660-4668. 2016
- Estimation of Snow Depth Using L1 GPS Signal-to-Noise Ratio Data. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. 4802-4808. 2016
- Validation of GPS-IR Soil Moisture Retrievals: Comparison of Different Algorithms to Remove Vegetation Effects. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. 4759-4770. 2016
- An algorithm for soil moisture estimation using GPS-interferometric reflectometry for bare and vegetated soil. GPS Solutions. 525-537. 2016
- GPS interferometric reflectometry: applications to surface soil moisture, snow depth, and vegetation water content in the western United States. Wiley Interdisciplinary Reviews: Water. 775-787. 2016
- Vegetation Sensing Using GPS-Interferometric Reflectometry: Theoretical Effects of Canopy Parameters on Signal-to-Noise Ratio Data. IEEE Transactions on Geoscience and Remote Sensing. 2755-2764. 2015
- Using geodetic GPS receivers to measure vegetation water content. GPS Solutions. 237-248. 2015
- Constraints on snow accumulation and firn density in Greenland using GPS receivers. Journal of Glaciology. 101-114. 2015
- Inverse Modeling of GPS Multipath for Snow Depth Estimation-Part I: Formulation and Simulations. IEEE Transactions on Geoscience and Remote Sensing. 6555-6563. 2014
- Inverse Modeling of GPS Multipath for Snow Depth Estimation-Part II: Application and Validation. IEEE Transactions on Geoscience and Remote Sensing. 6564-6573. 2014
- Comparing land surface phenology derived from satellite and GPS network microwave remote sensing. International Journal of Biometeorology: the description, causes, and implications of climatic change. 1305-1315. 2014
- Snow depth, density, and SWE estimates derived from GPS reflection data: Validation in the western U.S.. Water Resources Research. 6892-6909. 2014
- An open source GPS multipath simulator in Matlab/Octave. GPS Solutions. 473-481. 2014
- Comparison of vegetation phenology in the western USA determined from reflected GPS microwave signals and NDVI. International Journal of Remote Sensing. 2996-3017. 2014
- Normalized Microwave Reflection Index: A Vegetation Measurement Derived From GPS Networks. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. 1501-1511. 2014
- Normalized Microwave Reflection Index: Validation of Vegetation Water Content Estimates From Montana Grasslands. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. 1512-1521. 2014
- Forward modeling of GPS multipath for near-surface reflectometry and positioning applications. GPS Solutions. 309-322. 2014
- First results from an airborne GPS radio occultation system for atmospheric profiling. Geophysical Research Letters. 1759-1765. 2014
- Effects of Near-Surface Soil Moisture on GPS SNR Data: Development of a Retrieval Algorithm for Soil Moisture. IEEE Transactions on Geoscience and Remote Sensing. 537-543. 2014
- State of the Art in Large-Scale Soil Moisture Monitoring. Soil Science Society of America Journal. 1888-1919. 2013
- The Accidental Tide Gauge: A GPS Reflection Case Study From Kachemak Bay, Alaska. IEEE Geoscience and Remote Sensing Letters. 1200-1204. 2013
- A methodology to eliminate snow- and ice-contaminated solutions from GPS coordinate time series. Journal of Geophysical Research. Solid Earth. 4503-4510. 2013
- Satellite clock bias estimation for iGPS. GPS Solutions. 381-389. 2013
- A new way to detect volcanic plumes. Geophysical Research Letters. 2657-2660. 2013
- Coastal sea level measurements using a single geodetic GPS receiver. Advances in Space Research. 1301-1310. 2013
- GPS snow sensing: results from the EarthScope Plate Boundary Observatory. GPS Solutions. 41-52. 2013
- Snow measurement by GPS interferometric reflectometry: an evaluation at Niwot Ridge, Colorado. Hydrological Processes. 2951-2961. 2012
- Longitudinal variations in the F region ionosphere and the topside ionosphere-plasmasphere: Observations and model simulations. Journal of Geophysical Research: Space Physics. 2011
- Spatiotemporal evolution of dike opening and decollement slip at Kilauea Volcano, Hawai'i. Journal of Geophysical Research. Solid Earth. 2011
- Routine determination of the plasmapause based on COSMIC GPS total electron content observations of the midlatitude trough. Journal of Geophysical Research: Space Physics. 2010
- Volcano monitoring using GPS: Developing data analysis strategies based on the June 2007 Kilauea Volcano intrusion and eruption. Journal of Geophysical Research. Solid Earth. 2010
- Sensing vegetation growth with reflected GPS signals. Geophysical Research Letters. 2010
- A Physical Model for GPS Multipath Caused by Land Reflections: Toward Bare Soil Moisture Retrievals. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. 100-110. 2010
- GPS Multipath and Its Relation to Near-Surface Soil Moisture Content. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. 91-99. 2010
- Observations of the ionospheric response to the 15 December 2006 geomagnetic storm: Long-duration positive storm effect. Journal of Geophysical Research: Space Physics. 2009
- Can we measure snow depth with GPS receivers?. Geophysical Research Letters. 2009
- Fault friction parameters inferred from the early stages of afterslip following the 2003 Tokachi-oki earthquake. Journal of Geophysical Research. Solid Earth. 2009
- GPS seismology. Journal of Geodesy. 227-233. 2009
- Use of GPS receivers as a soil moisture network for water cycle studies. Geophysical Research Letters. 2008
- Changes in the longitudinal structure of the low-latitude ionosphere during the July 2004 sequence of geomagnetic storms. Journal of Geophysical Research: Space Physics. 2008
- "Seismically and geodetically determined nondouble-couple source mechanisms from the 2000 Miyakejima volcanic earthquake swarm'' (vol 113, art no B10303, 2008). Journal of Geophysical Research. Solid Earth. 2008
- Using GPS multipath to measure soil moisture fluctuations: initial results. GPS Solutions. 173-177. 2008
- GPS seismology:: Application to the 2002 Mw 7.9 Denali fault earthquake. Bulletin of the Seismological Society of America. 593-606. 2008
- Modeling GPS phase multipath with SNR: Case study from the Salar de Uyuni, Boliva. Journal of Geophysical Research. Solid Earth. 2008
- Mapping the GPS multipath environment using the signal-to-noise ratio (SNR) (vol 42, art no RS6003, 2008). Radio Science. 2008
- Coseismic and early postseismic slip for the 2003 Tokachi-oki earthquake sequence inferred from GPS data. Geophysical Research Letters. 2008
- Geodetic measurements of postglacial adjustments in Greenland. Journal of Geophysical Research. Solid Earth. 2008
- Resolving static offsets from high-rate GPS data: the 2003 Tokachi-oki earthquake. Earth, Planets and Space. 801-808. 2008
- An assessment of relativistic effects for low Earth orbiters: the GRACE satellites. Metrologia: international journal of pure and applied metrology. 484-490. 2007
- Stability and uncertainty of finite-fault slip inversions: Application to the 2004 Parkfield, California, earthquake. Bulletin of the Seismological Society of America. 1911-1934. 2007
- Mapping the GPS multipath environment using the signal-to-noise ratio (SNR). Radio Science. 2007
- Elastic uplift in southeast Greenland due to rapid ice mass loss. Geophysical Research Letters. 2007
- Seismicity variations associated with aseismic transients in Guerrero, Mexico, 1995-2006. Earth and Planetary Science Letters. 493-504. 2007
- Seismically and geodetically determined nondouble-couple source mechanisms from the 2000 Miyakejima volcanic earthquake swarm. Journal of Geophysical Research. Solid Earth. 2007
- The 2006 aseismic slow slip event in Guerrero, Mexico: New results from GPS. Geophysical Research Letters. 2007
- Improving the precision of high-rate GPS. Journal of Geophysical Research. Solid Earth. 2007
- Recovering seismic displacements through combined use of 1-Hz GPS and strong-motion accelerometers. Bulletin of the Seismological Society of America. 357-378. 2007
- Finding the repeat times of the GPS constellation. GPS Solutions. 71-76. 2007
- Frictional properties on the San Andreas fault near Parkfield, California, inferred from models of afterslip following the 2004 earthquake. Bulletin of the Seismological Society of America. S321-S338. 2006
- Absolute calibration of a geodetic time transfer system. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 1904-1911. 2005
- Long-term comparisons between two-way satellite and geodetic time transfer systems. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 1912-1918. 2005
- Propagation of the 2001-2002 silent earthquake and interplate coupling in the Oaxaca subduction zone, Mexico. Earth, Planets and Space. 973-985. 2005
- Modified sidereal filtering: Implications for high-rate GPS positioning. Geophysical Research Letters. 2004
- Modeling the rupture process of the 2003 September 25 Tokachi-Oki (Hokkaido) earthquake using 1-Hz GPS data. Geophysical Research Letters. 2004
- Interplate coupling and a recent aseismic slow slip event in the Guerrero seismic gap of the Mexican subduction zone, as deduced from GPS data inversion using a Bayesian information criterion. Physics of the Earth and Planetary Interiors. 513-530. 2004
- Slip history of the 2003 San Simeon earthquake constrained by combining 1-Hz GPS, strong motion, and teleseismic data. Geophysical Research Letters. 2004
- Crustal deformation measurements in Guerrero, Mexico -: art. no. B04409. Journal of Geophysical Research. Solid Earth. 2004
- Earthquake nucleation by transient deformations caused by the M=7.9 Denali, Alaska, earthquake. Nature. 621-624. 2004
- A large silent earthquake in the Guerrero seismic gap, Mexico. Geophysical Research Letters. 2003
- Using 1-Hz GPS data to measure deformations caused by the Denali fault earthquake. Science. 1421-1424. 2003
- Present-day crustal movement and tectonic deformation in China continent. Science China Earth Sciences. 865-874. 2002
- Surface melt-induced acceleration of Greenland ice-sheet flow. Science. 218-222. 2002
- Current status of the DORIS Pilot Experiment and the future international DORIS Service. Advances in Space Research. 151-156. 2002
- GPS measurements of vertical crustal motion in Greenland. Journal of Geophysical Research: Atmospheres. 33755-33759. 2001
- Present-day crustal deformation in China constrained by global positioning system measurements. Science. 574-577. 2001
- Transient fault slip in Guerrero, southern Mexico. Geophysical Research Letters. 3753-3756. 2001
- Volcano monitoring using the Global Positioning System: Filtering strategies. Journal of Geophysical Research. Solid Earth. 19453-19464. 2001
- Geodetic measurements in Greenland and their implications. Journal of Geophysical Research. Solid Earth. 16567-16581. 2001
- Crustal displacements due to continental water loading. Geophysical Research Letters. 651-654. 2001
- The motion and active deformation of India. Geophysical Research Letters. 647-650. 2001
- Measuring postglacial rebound with GPS and absolute gravity. Geophysical Research Letters. 3925-3928. 2000
- Geodetic evidence for a low slip rate in the Altyn Tagh fault system. Nature. 69-72. 2000
- Assessment of GPS carrier-phase stability for time-transfer applications. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 484-494. 2000
- Secular and tidal strain across the main Ethiopian rift. Geophysical Research Letters. 2789-2792. 1999
- Carrier-phase time transfer. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 1001-1012. 1999
- Kinematics of the India-Eurasia collision zone from GPS measurements. Journal of Geophysical Research. Solid Earth. 1077-1093. 1999
- Time transfer using the phase of the GPS carrier. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 539-540. 1998
- Performance and simulation of CdZnTe strip detectors as sub-millimeter resolution imaging gamma radiation spectrometers. IEEE Transactions on Nuclear Science. 922-928. 1997
- Global plate velocities from the Global Positioning System. Journal of Geophysical Research. Solid Earth. 9961-9981. 1997
- GPS measurements of present-day convergence across the Nepal Himalaya. Nature. 61-64. 1997
- Global positioning system measurements of Indian plate motion and convergence across the Lesser Himalaya. Geophysical Research Letters. 3107-3110. 1996
- CRUSTAL DEFORMATION. Reviews of Geophysics. 371-377. 1995
- RELATIVE MOTIONS OF THE AUSTRALIAN, PACIFIC AND ANTARCTIC PLATES ESTIMATED BY THE GLOBAL POSITIONING SYSTEM. Geophysical Research Letters. 37-40. 1995
- STRAIN ACCUMULATION IN THE SHUMAGIN ISLANDS - RESULTS OF INITIAL GPS MEASUREMENTS. Geophysical Research Letters. 489-492. 1994
- APPLICATION OF THE GLOBAL POSITIONING SYSTEM TO CRUSTAL DEFORMATION MEASUREMENTS .3. RESULT FROM THE SOUTHERN CALIFORNIA BORDERLANDS. Journal of Geophysical Research. Solid Earth. 21713-21726. 1993
- SPACE GEODETIC MEASUREMENT OF CRUSTAL DEFORMATION IN CENTRAL AND SOUTHERN CALIFORNIA, 1984-1992. Journal of Geophysical Research. Solid Earth. 21677-21712. 1993
- AN EFFICIENT ALGORITHM FOR THE CALCULATION OF PARASITIC COUPLING BETWEEN LINES IN MICS. IEEE Transactions on Microwave Theory and Techniques. 1287-1293. 1993
- DEFORMATION IN THE SANTA-BARBARA CHANNEL FROM GPS MEASUREMENTS 1987-1991. Geophysical Research Letters. 1491-1494. 1992
- APPLICATION OF THE GLOBAL POSITIONING SYSTEM TO CRUSTAL DEFORMATION MEASUREMENT .1. PRECISION AND ACCURACY. Journal of Geophysical Research. Solid Earth. 16547-16565. 1991
- APPLICATION OF THE GLOBAL POSITIONING SYSTEM TO CRUSTAL DEFORMATION MEASUREMENT .2. THE INFLUENCE OF ERRORS IN ORBIT DETERMINATION NETWORKS. Journal of Geophysical Research. Solid Earth. 16567-16584. 1991
- EVALUATION OF GPS ESTIMATES OF RELATIVE POSITIONS FROM CENTRAL CALIFORNIA, 1986-1988. Geophysical Research Letters. 2433-2436. 1990