Contact Information

Marius Necsoiu, Ph.D., PMP
Certified Mapping Scientist-Remote Sensing
(210) 522-5541

Optical & Radar Remote Sensing

Image: Fault rupture map

Fault rupture mapping—This displacement gradient map is derived from a SAR image pair collected on April 24 and August 7, 1992, showing the Newberry fracture zone in California. Cultural and agricultural features (e.g., center pivot irrigation circles, ponds) are outlined in white. Suspected fault ruptures are indicated by black ellipses.

image of Detecting and Monitoring Geologic Hazards Using Remote Sensing Methods Brochure.

Detecting & Monitoring Geologic Hazards Using Remote Sensing Methods Brochure

Advanced optical and radar remote sensing and image processing techniques are used at Southwest Research Institute (SwRI) for detailed site-specific surveys and regional or global assessments. The remote sensing techniques are routinely supplementing near-surface geophysical techniques in projects related to the management of natural resources, natural hazard assessment, and infrastructure planning.

We have expertise in processing and analyzing radar interferometry (InSAR) data and have developed techniques for generating surface displacement maps and mapping fault ruptures. These techniques are essential for analysis of crustal deformation, natural hazard assessment, regulatory review and analysis, and performance confirmation.

Remote Sensing Core Capabilities

  • Terrain analysis, categorization and other feature extraction techniques for mineral exploration and geological mapping
  • Robust change detection and time series analyses
  • Vegetation mapping
  • Land use and land cover analyses

Remote Sensing Techniques

Earth Airborne and Satellite Data

  • Optical
    • Multispectral (IKONOS, Landsat MSS, TM, ETM+; SPOT; MODIS; SeaWiFS, and weather satellites)
    • Hyperspectral (AVIRIS and Hyperion)
  • Radar
    • Amplitude images (ALOS, ERS-1/2, RADARSAT, JERS, ENVISAT, TerraSAR-X)
    • SAR interferometry

Planetary Science Satellite Data

  • Galileo, HRSC, THEMIS, TES, MOC, MOLA, and Viking

SwRI maintains state-of-the-art equipment and software to support GIS (geographic information systems), remote sensing, and visualization projects. On the Solaris XP platforms, we utilize ARC/INFO®, ArcView®, ERDAS IMAGINE®, EarthVision® as well as a few freeware image processing and GIS packages. Under the Windows®NT/2000/XP platforms, we utilize ArcGIS®, ArcView®, IDL/ENVI®, Surfer®, and Petrel® software.

Image: image of a High Resolution Stereo Camera image draped over gridded topography to provide a perspective view of a canyon system

A High Resolution Stereo Camera image is draped over gridded topography to provide a perspective view of a canyon system. Higher resolution altimeter tracks (dotted colored lines) provide precise elevation information and high resolution Mars Orbiter Camera images (gray swath) give detail.

Related Terminology

Earth and planetary geomatics  •  Earth sciences  •  planetary sciences  •  geo-spatial data management  •  geoinformatics  •  data mapping  •  geographic information systems  •  GIS  •  global positioning systems  •  GPS  •  visualization and modeling  •  Earth-orbiting satellites  •  aerial imagery  •  optical and radar remote sensing  •  multispectral  •  hyperspectral  •  radar interferometry  •  data sharing systems

Benefiting government, industry and the public through innovative science and technology
Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 9 technical divisions.