
ENVI Inform automatically monitors wide areas by processing and analyzing large volumes of data, extracting actionable information, and publishing the results to the customer's platform.
When developing the solution, the first thing that needed to be determined was which satellite data source to use. Given the requirement for a frequent revisit rate, availability of historical data, and low cost, data from the European Space Agency’s (ESA) Copernicus programme was chosen. Specifically, a solution based on multispectral data from Sentinel-2 and Synthetic Aperture Radar (SAR) data from Sentinel-1 was selected. Utilizing SAR meant data could be collected at night and in cloudy conditions. Combining this with multispectral data provided an increased revisit rate.
Using archives hosted by ESA, the Alaska Satellite Facility and Amazon, NV5 Geospatial hosted industry-leading ENVI® and ENVI SARscape® analytics on ENVI Inform to create a historical baseline that identified changes in forested areas. As new multispectral and SAR satellite data is collected and made available, ENVI Inform automatically retrieves the data and processes it, generating fully updated results within hours of acquisition. The processing results are appended to previous outputs to identify temporal changes compared to the historical baseline. Updates are published to the customer’s platform which combines them with additional data sources providing users with an on-demand, event-centric solution.