News

Request for NCALM Seed Proposals from Graduate Students
October 7, 2016
The National Center for Airborne Laser Mapping, funded by the National Science Foundation, invites proposals from graduate students seeking Airborne Laser Swath Mapping observations...
Request for NCALM Seed Proposals from Graduate Students

The National Center for Airborne Laser Mapping, funded by the National Science Foundation, invites proposals from graduate students seeking Airborne Laser Swath Mapping observations covering limited areas (no more than 40 km2) for use in research toward an M.S. or Ph.D. degree. Proposals must be submitted online. For background information and complete guidelines for submitting a proposal, please see the Seed Proposals and Format Guidelines pages. The period for proposal submission is October 10 – December 23, 2016. For more information, contact ncalm [at] egr.uh.edu (subject: Seed%20Project%20Proposal%20Information) or call 832.842.8881.

OpenTopography Releases New NCALM Dataset from New Zealand
September 29, 2016
OpenTopography has released a dataset from the South Island of New Zealand. The data are part of the Marlborough Fault System and were collected by NCALM in March, 2014. Access to the data...
OpenTopography Releases New NCALM Dataset from New Zealand

OpenTopography has released a dataset from the South Island of New Zealand. The data are part of the Marlborough Fault System and were collected by NCALM in March, 2014. Access to the data can be found here.

UH Engineer Dives In to Determine How Much Water Exists In the World
September 12, 2016
Hyongki Lee, assistant professor of civil and environmental engineering at the Cullen College, is making quite a splash. Lee has accomplished so much in the field of water you could say he’...
SWOT image artist rendering, courtesy of NASA

Hyongki Lee, assistant professor of civil and environmental engineering at the Cullen College, is making quite a splash. Lee has accomplished so much in the field of water you could say he’s all over the map, but soon his work will be high above the map. He’s helped Pakistani officials manage water resources and was selected by NASA to do the same in Indochina.

Ph.D. Student Opportunities in Geosensing Systems Engineering & Sciences
August 18, 2016
The Geosensing Systems Engineering & Sciences (GSES) Graduate Program in the Department of Civil & Environmental Engineering at the University of Houston, in conjunction with the...
Ph.D. Student Opportunities in Geosensing Systems Engineering & Sciences

The Geosensing Systems Engineering & Sciences (GSES) Graduate Program in the Department of Civil & Environmental Engineering at the University of Houston, in conjunction with the NSF National Center for Airborne Laser Mapping (NCALM), is seeking qualified applicants (with backgrounds in engineering, geomatics, geosciences, physics, astronomy, computer sciences, or geography) interested in: Design, development, and testing of lidar, digital image, and hyperspectral sensors; Research applications of lidar observations, including when combined with digital imagery or hyperspectral measurements; Study of satellite altimetry for applications in hydrology, glaciology, geodynamics, and sea levels; Applications of terrestrial laser scanning, airborne lidar, and GPS in natural hazards studies and mitigation; and Applications of airborne remote sensing techniques in geomorphology, climate/weather studies, hydrology, and tectonics.

Additionally, U.S. citizens interested in single photon and Geiger mode lidar analysis are encouraged to apply for opportunities to participate in sensor design and error analysis, geometric and radiometric calibration algorithm development, data filtering and feature extraction, comparison and fusion with traditional active and passive remote sensing products, and multi-sensor fusion design and data exploitation.

Please visit: ncalm.cive.uh.edu/gses/geosensing, for more information.

The application process and forms can be found on the Civil & Environmental Engineering website. Interested students can contact Dr. Craig Glennie at: clglennie [at] uh.edu (subject: GSES%20Graduate%20Program%20Information%20Request) .

Deadline: February 1st, 2017

Hyongki Lee’s Plan to Monitor Water is Out of This World
July 25, 2016
If it has to do with water, you can bet Assistant Civil and Environmental Engineering Professor Hyongki Lee has an appetite whet for it. Fresh off the success of helping Pakistani officials...
Professor Hyongki Lee is helping manage water via satellite for Indochina

If it has to do with water, you can bet Assistant Civil and Environmental Engineering Professor Hyongki Lee has an appetite whet for it. Fresh off the success of helping Pakistani officials manage water resources, he’s at it again, now selected by NASA to manage water for Indochina.

For Lee, it’s an issue of fairness.

GSES Ph.D. Student Defends Dissertation
June 22, 2016
Zhigang Pan defended his Ph.D. dissertation, "Shallow Water Bathymetry Using Full Waveform Bathymetric LiDAR and Hyperspectral Imagery." High-resolution airborne hyperspectral imagery and...
Zhigang Pan Defends Dissertation

Zhigang Pan defended his Ph.D. dissertation, "Shallow Water Bathymetry Using Full Waveform Bathymetric LiDAR and Hyperspectral Imagery." High-resolution airborne hyperspectral imagery and high-resolution, low-pulse energy, full waveform lidar were investigated to determine their capabilities for predicting water column characteristics and bathymetry. Using multiple evaluations, significant improvements in point density, multiple return detection, water turbidity, and accuracy were determined for full waveform bathymetric lidar. Additionally, improvements were made to the determination of shallow water bathymetry, water turbidity, and water column constituent concentration using hyperspectral imagery.

Zhigang becomes the fifth Geosensing Systems Engineering & Sciences (GSES) doctoral student to defend in 2016. His advisor was Dr. Craig Glennie. Zhigang will be working closely with Dr. Glennie and Leica Geosystems as a postdoctoral researcher, where he will be concentrating on single photon lidar calibration and filtering.

Congratulations, Zhigang!

2014 Titan Point Clouds Now Available
June 16, 2016
Seven new NCALM lidar datasets are now available on OpenTopograpy. These point clouds were among the first collected by the Optech Titan in 2014. The datasets, which were CZO and SEED...
2014 Titan Point Clouds Now Available

Seven new NCALM lidar datasets are now available on OpenTopograpy. These point clouds were among the first collected by the Optech Titan in 2014. The datasets, which were CZO and SEED projects, are located in California, Montana, South Carolina, Utah, and Wyoming. Lidar data can be found here.

GSES Doctoral Candidate Successfully Defends Dissertation
May 27, 2016
Doctoral student Hongzhou Wang, from the Geosensing Systems Engineering & Sciences (GSES) graduate studies program, recently defended his dissertation on, “Fusion of Full Waveform LiDAR...
GSES Doctoral Candidate Successfully Defends Dissertation

Doctoral student Hongzhou Wang, from the Geosensing Systems Engineering & Sciences (GSES) graduate studies program, recently defended his dissertation on, “Fusion of Full Waveform LiDAR and Passive Remote Sensing for Improved Land-Cover Classification.” Land cover classification is a crucial step in interpreting remote sensing data, and the accuracy of the classification determines the reliability of the product for further downstream applications. Hyperspectral sensors have been widely utilized for classification because of the discrimination afforded by their rich spectral information and high resolution in both the spatial and spectral domains. Additionally, lidar data has gained increased interest for use in classification, because it provides precise 3D data with information regarding target backscattering properties. With the introduction of full waveform lidar (FWL), the possibility of using lidar for target discrimination has been enhanced due to the additional structural information acquired. The geometrical information and backscattering properties measured by FWL is complementary to the reflectance characteristics recorded within hyperspectral imagery (HI). The fusion of FWL and HI is, consequently, desirable. Hongzhou’s research aimed to build a framework for fusing FWL and HI while demonstrating the application of combined datasets for land cover classification. Feature extraction methods and classifier designs were proposed after considering characteristics of both datasets, and performance of the proposed methods were evaluated. Experimental results showed that the suggested methods were successful in extracting features from reconstructed FWL data.

Hongzhou has accepted a position at CGG as a Seismic Imager. Dr. Craig Glennie was Hongzhou’s graduate advisor. Congratulations and good luck!

NCALM/GSES Hires New Research Professor
May 25, 2016
Dr. Preston Hartzell joins NCALM and the Geosensing Systems Engineering & Sciences faculty as a Research Assistant Professor. Preston earned his Ph.D. (2016) from University of Houston...
Dr. Preston Hartzell

Dr. Preston Hartzell joins NCALM and the Geosensing Systems Engineering & Sciences faculty as a Research Assistant Professor. Preston earned his Ph.D. (2016) from University of Houston and his B.S. (2004) from Pennsylvania State University. His doctoral dissertation focused on using terrestrial laser scanning intensity to enhance terrestrial hyperspectral image shadow restoration.

Preston will be working closely with Dr. Craig Glennie and the USACE Cold Regions Research & Engineering Laboratory on related work in instrument and data calibration and multi-instrument integration.

GSES Doctoral Candidate Defends Dissertation
April 25, 2016
A Ph.D. student from the Geosensing Systems Engineering & Sciences (GSES) graduate research program successfully defended his dissertation. Ning Cao defended on, “Advanced SAR...
GSES Doctoral Candidate Defends Dissertation

A Ph.D. student from the Geosensing Systems Engineering & Sciences (GSES) graduate research program successfully defended his dissertation. Ning Cao defended on, “Advanced SAR Interferometry Methods for Ground Displacement Estimation from Spaceborne and Airborne Platforms.” Ground deformation measurements are important for monitoring and improving understanding of many natural geological phenomena or human-induced events, such as earthquakes, volcanoes, landslides, and land subsidence. Therefore, ground deformation studies can provide critical information for disaster prevention and protection of people and property. Interferometric synthetic aperture radar (InSAR) is a powerful technique for monitoring ground deformation phenomena.

In Ning's dissertation, several problems with the current advanced InSAR techniques were expressed, and corresponding approaches were proposed to solve them. He mainly focused on studying subsidence and landslide phenomena, producing results that can be used to monitor land subsidence in high spatial and temporal resolutions and to assess the impacts on civil infrastructure. The research also improves understanding of landslides to provide critical predictions and warnings.

Ning will be working as a postdoctoral researcher with NCALM/GSES at the University of Houston. Ning’s advisor was Dr. Hyongki Lee.

Congratulations, Ning!

Pages