This free, three-day workshop explores technical aspects and research applications of declassified, Cold War-era CORONA satellite imagery. In operation from 1960-1972, the CORONA satellite program collected over 860,000 images across the entire globe, all of which are now publicly available through the USGS. These extraordinary, high-resolution images preserve a unique picture of the world as it appeared a half-century ago, and have become a critical research tool in archaeology, environmental science, geography and other disciplines. Despite the unrivaled value of CORONA for global-scale landscape reconstruction, technical challenges involved in correcting the extreme spatial distortions contained in raw imagery has long presented a hurdle to researchers.
This workshop, led by the directors of the CORONA Atlas Project, Prof. Jesse Casana (Dartmouth) and Prof. Jackson Cothren (University of Arkansas), will offer training in all aspects of using CORONA imagery. From acquiring the best images, to correcting distortions using a powerful new online service called Sunspot, to stereo analysis and surface model generation, the workshop will provide participants with all the skills needed to unlock the hidden potential of CORONA imagery and to apply this resource in their own research.
There is no cost to participate in the CORONA workshop, but space is limited so registration is required. The workshop is made possible through support from the American Council of Learned Societies and is hosted by New York University’s Department of Anthropology, in collaboration with Dartmouth College and the Center for Advanced Spatial Technologies at the University of Arkansas.
Future workshops will be held at Dartmouth College, the University of Arkansas, and UCLA (Dates TBA).
For more information, please contact Chad Hill (Austin.Chad.Hill@dartmouth.edu).
Workshop Outline
Thursday, December 1:
CORONA Imagery 101
- History of the CORONA program
- Unique strengths of CORONA imagery for research
- Technical aspects of CORONA sensors and imagery
- Acquiring CORONA images from USGS
- Practicum #1: Selecting the best CORONA in EarthExplorer
Correcting Distortions
- Photogrammetry theory
- Full-scene orthorectification using Sunspot
- Assessing errors, troubleshooting, downloading results
- Practicum #2: Orthorectification in Sunspot
Friday, December 2:
Exploring the CORONA Atlas
- Basic navigation, tools, and capabilties
- Downloading and displaying NITFs
- Integration with other geospatial data
- Practicum #3: Working with CORONA imagery in ArcGIS and Q-GIS
CORONA in Stereo
- Overview of possibilities and challenges
- Approaches to stereo analysis
- DSM extraction from CORONA imagery
- Practicum #4: DSM extraction from CORONA image segments in AgiSoft Photoscan
Saturday, December 3:
Analysis of CORONA imagery
- Archaeological site and feature identification
- Assessing changes in the landscape
- History, human rights, and other applications
- Practicum #5: Sample research project application in ArcGIS/Q-GIS
- Individual research project consultations