Publications
Research
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"Design of a Wideband Vivaldi Antenna Array and Performance Enhancement of Small Vivaldi Arrays Using Baffles", Department of Electrical Engineering and Computer Science, Lawrence, Kansas, University of Kansas, 04/2006.
, "The Meridian UAV Flight Performance Analysis Using Analytical and Experimental Data", AIAA Infotech@Aerospace Conference and Exhibit, Seattle, WA, 4/6-4/9, 2009.
, "A Wideband Direction of Arrival Technique for Multibeam, Wide-Swath Imaging of Ice Sheet Basal Morphology", CReSIS Technical Report, Lawrence, KS, University of Kansas, 2015.
TechRpt163.pdf (18.01 MB)
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"A Novel FMCW Radar Altimeter Design Capable of Achieving Fine Range Accuracy Needed for Autonomous UAV Operation", CReSIS Technical Report, no. 156: University of Kansas, pp. 1-50, 2013.
TechRpt156.pdf (3.66 MB)
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"A Wideband Direction of Arrival Technique for Multibeam, Wide-Swath Imaging of Ice Sheet Basal Morphology", Department of Electrical Engineering and Computer Science, Lawrence, Kansas, University of Kansas, pp. 125, 2015.
TechRpt163.pdf (18.01 MB)
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"Exploring the Gamburtsev Subglacial Mountains with aerogeophysical surveys during the IPY", EOS Trans. AGUEOS Trans. AGU, vol. 87, no. 52, pp. Fall Meet. Suppl., Abstract U21B-0814, 2006.
, "Mapping Pine Island Glacier's sub-ice cavity with airborne gravimetry", International Symposium on Interactions of Ice Sheets and Glaciers with the Ocean, vol. 60A016, San Diego, CA, International Glaciological Society, 6/5-6/10, 2011.
, "Mapping Pine Island Glacier's Sub-ice Cavity with Airborne Gravimetry", 2010 Fall Meeting, AGU, San Francisco, CA, pp. 12/13-12/17, 2010.
, "The Case for a Sustained Greenland Ice Sheet-Ocean Observing System (GrIOOS)", Front. Mar. Sci., vol. 6, issue 138, 3/2019.
, "Impact of fjord dynamics and glacial runoff on the circulation near Helheim Glacier", Nature GeoscienceNature Geoscience, vol. 4, pp. 322-327, 2011.
, "Cyclogenesis Near the Adélie Coast and Influence of the Low- Level Wind Regime", CReSIS Technical Report, no. 136: University of Kansas, pp. 284, 03/2008.
TechRpt136.pdf (56.11 MB)
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"The Change in Surface Acuumulation-Rate Pattern along the Ridge from GRIP to NEEM during the Holocene", International Symposium on Radioglaciology and its Application, Madrid, Spain, 6/11, 2008.
, "Response to Comment on “Friction at the bed does not control fast glacier flow”", Science, vol. 363, issue 4267, 02/2019.
, "Helheim Strain Rates: 2006-2008", Midwest Glaciology Meeting (MGM) 2009, Chicago, IL, 3/26-3/28, 2009.
, "A new velocity map for Byrd Glacier, East Antarctica, from sequential ASTER satellite imagery", Annals of GlaciologyAnnals of Glaciology, vol. 41, no. 1, pp. 71-76, 2005.
, "Dynamics and mass balance of four large East Antarctic outlet glaciers", Annals of GlaciologyAnnals of Glaciology, vol. 52, no. 59, pp. 116-126, 2011.
, "Decadal-scale variations in ice flow along Whillans Ice Stream and its tributaries, West Antarctica", Journal of GlaciologyJournal of Glaciology, vol. 51, no. 172, pp. 147-157, 2005.
, "Collision and Obstacle Avoidance in Unmanned Aerial Systems Using Morphing Potential Field Navigation and Nonlinear Model Predictive Control", Journal of Dynamic Systems, Measurement, and Control, vol. 137, no. 1, 2015.
, "Robust Three-Dimensional Collision Avoidance for Fixed-Wing Unmanned Aerial Systems", AIAA Guidance Navigation and Control Conference, Kissimmee, Florida, 2015.
, "Constraint-Based Task Selection and Configuration for Autonomous Mobile Robots", CReSIS Technical Report, no. 126: University of Kansas, pp. 182, 07/2007.
TechRpt126.pdf (2.66 MB)
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"Developing a bubble number-density paleoclimatic indicator for glacier ice", Journal of GlaciologyJournal of Glaciology, vol. 52, no. 178, pp. 358-364, 2006.
, "Developing a Bubble Number-Density Paleoclimatic Indicator for Glacier Ice", EOS Trans. AGUEOS Trans. AGU, vol. 86, no. 52, pp. Fall Meet. Suppl., Abstract C51B-0283, 2005.
, "A closer look at the IPCC report", ScienceScienceScience, vol. 319, no. 5862, pp. 409-410, Jan, 2008.
, "Jakobshavn Glacier, West Greenland: 30 years of spaceborne observations", Geophysical Research LettersGeophysical Research Letters, vol. 25, no. 14, pp. 2699-2702, Jul, 1998.
, "Active Receive Antennas as Sensors for Radars", Department of Electrical Engineering and Computer Science, Lawrence, Kansas, University of Kansas, 08/2006.
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