SunCalc - Geospatial OSINT using shadows
Introduction
Using geospatial OSINT (Open Source Intelligence) with SunCalc can provide valuable information about a location based on sunlight and shadow patterns. SunCalc is a JavaScript library (and also available as a web tool) that calculates the sun’s position and phases for a specific time and place. This data can aid in geospatial analysis, especially when combined with satellite imagery, street views, and other geospatial data sources.
Uses of SunCalc
Determine Sun Position at a Specific Location and Time
Verify the Time of Imagery Using Shadows
Calculate Sunrise, Sunset, and Twilight Times
Plan Surveillance or Site Visits with Lighting in Mind
Use in Conjunction with Map Data and Satellite Imagery
Example Workflow for Geospatial OSINT with SunCalc
Identify the Coordinates: Gather the exact coordinates (latitude and longitude) of the location you’re investigating.
Set the Date and Time: Use SunCalc to input the specific date and time to get the sun’s position.
Calculate Shadow Direction and Length: From the sun’s altitude and azimuth, determine where shadows should fall at that time.
Analyze Images or Videos: Use the calculated shadow direction to check if shadows in images or videos align with SunCalc’s predictions.
Compare with Other Sources: Cross-reference findings with map or satellite imagery to confirm location details and improve the accuracy of your analysis.
REFERENCES
Last updated