Search Results - "Zebker, H. A"

Estimating the permanent loss of groundwater storage in the southern San Joaquin Valley, California by Smith, R. G., Knight, R., Chen, J., Reeves, J. A., Zebker, H. A., Farr, T., Liu, Z.

“…In the San Joaquin Valley, California, recent droughts starting in 2007 have increased the pumping of groundwater, leading to widespread subsidence. In the…”
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Surface motion of active rock glaciers in the Sierra Nevada, California, USA: inventory and a case study using InSAR by Liu, L, Millar, C. I, Westfall, R. D, Zebker, H. A

“…Despite the abundance of rock glaciers in the Sierra Nevada of California, USA, few efforts have been made to measure their surface flow. Here we use the…”
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Smoothness of Titan's Ontario Lacus: Constraints from Cassini RADAR specular reflection data by Wye, L. C., Zebker, H. A., Lorenz, R. D.

“…Cassini RADAR altimetry data collected on the 49th flyby of Titan (2008 December 21) over Ontario Lacus in Titan's south polar region provides strong evidence…”
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Correction for interferometric synthetic aperture radar atmospheric phase artifacts using time series of zenith wet delay observations from a GPS network by Onn, F., Zebker, H. A.

“…Radar interferograms provide precise (millimeter level) measurements of crustal deformation at fine resolution over wide areas. The dominant error source in…”
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Seasonal thaw settlement at drained thermokarst lake basins, Arctic Alaska by Liu, L, Schaefer, K, Gusmeroli, A, Grosse, G, Jones, B. M, Zhang, T, Parsekian, A. D, Zebker, H. A

“…Drained thermokarst lake basins (DTLBs) are ubiquitous landforms on Arctic tundra lowland. Their dynamic states are seldom investigated, despite their…”
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Remote sensing measurements of thermokarst subsidence using InSAR by Liu, L., Schaefer, K. M., Chen, A. C., Gusmeroli, A., Zebker, H. A., Zhang, T.

“…Thawing of ice‐rich permafrost followed by surface subsidence results in irregular, depressed landforms known as thermokarst. Many remote sensing studies have…”
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Detailed rockslide mapping in northern Norway with small baseline and persistent scatterer interferometric SAR time series methods by Lauknes, T.R., Piyush Shanker, A., Dehls, J.F., Zebker, H.A., Henderson, I.H.C., Larsen, Y.

“…Rockslides have a high socioeconomic and environmental importance in many countries. Norway is particularly susceptible to large rockslides due to its many…”
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Transient surface liquid in Titan’s polar regions from Cassini by Hayes, A.G., Aharonson, O., Lunine, J.I., Kirk, R.L., Zebker, H.A., Wye, L.C., Lorenz, R.D., Turtle, E.P., Paillou, P., Mitri, G., Wall, S.D., Stofan, E.R., Mitchell, K.L., Elachi, C.

“…Cassini RADAR images of Titan’s south polar region acquired during southern summer contain lake features which disappear between observations. These features…”
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Radar: The Cassini Titan Radar Mapper by Elachi, C, Allison, MD, Borgarelli, L, Encrenaz, P, Im, E, Janssen, MA, Johnson, WTK, Kirk, R L, Lorenz, R D, Lunine, JI, Muhleman, DO, Ostro, S J, Picardi, G, Posa, F, Rapley, C G, Roth, LE, Seu, R, Soderblom, LA, Vetrella, S, Wall, S D, Wood, CA, Zebker, HA

“…The Cassini RADAR instrument is a multimode 13.8 GHz multiple-beam sensor that can operate as a synthetic-aperture radar (SAR) imager, altimeter,…”
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Decorrelation in interferometric radar echoes by Zebker, H.A., Villasenor, J.

“…A radar interferometric technique for topographic mapping of surfaces, implemented utilizing a single synthetic aperture radar (SAR) system in a nearly…”
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Shallow Aseismic Slip in the Delaware Basin Determined by Sentinel‐1 InSAR by Pepin, K. S., Ellsworth, W. L., Sheng, Y., Zebker, H. A.

“…The Delaware Basin, Texas is currently a hot‐spot of induced seismicity and ground deformation due to fluid extraction and injection associated with horizontal…”
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Titan as Revealed by the Cassini Radar by Lopes, R. M. C., Wall, S. D., Elachi, C., Birch, S. P. D., Corlies, P., Coustenis, A., Hayes, A. G., Hofgartner, J. D., Janssen, M. A., Kirk, R. L., LeGall, A., Lorenz, R. D., Lunine, J. I., Malaska, M. J., Mastroguiseppe, M., Mitri, G., Neish, C. D., Notarnicola, C., Paganelli, F., Paillou, P., Poggiali, V., Radebaugh, J., Rodriguez, S., Schoenfeld, A., Soderblom, J. M., Solomonidou, A., Stofan, E. R., Stiles, B. W., Tosi, F., Turtle, E. P., West, R. D., Wood, C. A., Zebker, H. A., Barnes, J. W., Casarano, D., Encrenaz, P., Farr, T., Grima, C., Hemingway, D., Karatekin, O., Lucas, A., Mitchell, K. L., Ori, G., Orosei, R., Ries, P., Riccio, D., Soderblom, L. A., Zhang, Z.

“…Titan was a mostly unknown world prior to the Cassini spacecraft’s arrival in July 2004. We review the major scientific advances made by Cassini’s Titan Radar…”
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Accuracy of topographic maps derived from ERS-1 interferometric radar by Zebker, H.A., Werner, C.L., Rosen, P.A., Hensley, S.

“…An interferometric radar technique for topographic mapping of surfaces promises a high-resolution approach to the generation of digital elevation models. The…”
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Interferometric radar measurement of ocean surface currents by Goldstein, R. M., Zebker, H. A.

“…A new method of measuring surface currents using an interferometric synthetic aperture radar is presented. An airborne implementation has been tested over San…”
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Phase unwrapping for large SAR interferograms: statistical segmentation and generalized network models by Chen, C.W., Zebker, H.A.

“…Two-dimensional (2-D) phase unwrapping is a key step in the analysis of interferometric synthetic aperture radar (InSAR) data. While challenging even in the…”
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Remote Sensing of Ocean Currents by Goldstein, R. M., Barnett, T. P., Zebker, H. A.

“…A method of remotely measuring near-surface ocean currents with a synthetic aperture radar (SAR) is described. The apparatus consists of a single SAR…”
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Permanent Scatterer investigation of land subsidence in Greater Cairo, Egypt by Aly, M. H., Zebker, H. A., Giardino, J. R., Klein, A. G.

“…Land subsidence is a major geomorphic problem commonly associated with densely populated areas, such as the Greater Cairo area. Prior to this study, rates and…”
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Network approaches to two-dimensional phase unwrapping: intractability and two new algorithms by Chen, C W, Zebker, H A

“…Two-dimensional (2-D) phase unwrapping, that is, deducing unambiguous phase values from a 2-D array of values known only modulo 2pi, is a key step in…”
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Constraining the physical properties of Titan’s empty lake basins using nadir and off-nadir Cassini RADAR backscatter by Michaelides, R.J., Hayes, A.G., Mastrogiuseppe, M., Zebker, H.A., Farr, T.G., Malaska, M.J., Poggiali, V., Mullen, J.P.

“…•We study the radar backscatter properties of Titan’s empty lake basins.•Empty lake basins are compositionally and structurally distinct from their…”
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Cryovolcanic features on Titan's surface as revealed by the Cassini Titan Radar Mapper by Lopes, R.M.C., Mitchell, K.L., Stofan, E.R., Lunine, J.I., Lorenz, R., Paganelli, F., Kirk, R.L., Wood, C.A., Wall, S.D., Robshaw, L.E., Fortes, A.D., Neish, C.D., Radebaugh, J., Reffet, E., Ostro, S.J., Elachi, C., Allison, M.D., Anderson, Y., Boehmer, R., Boubin, G., Callahan, P., Encrenaz, P., Flamini, E., Francescetti, G., Gim, Y., Hamilton, G., Hensley, S., Janssen, M.A., Johnson, W.T.K., Kelleher, K., Muhleman, D.O., Ori, G., Orosei, R., Picardi, G., Posa, F., Roth, L.E., Seu, R., Shaffer, S., Soderblom, L.A., Stiles, B., Vetrella, S., West, R.D., Wye, L., Zebker, H.A.

“…The Cassini Titan Radar Mapper obtained Synthetic Aperture Radar images of Titan's surface during four fly-bys during the mission's first year. These images…”
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