GVI Viewer

GVI Viewer enables visualization and analysis of Global Vegetation Indices from satellite imagery. It supports multiple index types (NDVI, EVI, GVI) and time-series exploration over a defined region of interest. Data ingestion is performed from user-supplied datasets or URLs, with reprojection and resampling as needed to match a common CRS. Visual encoding uses configurable color ramps to highlight vegetation health, stress, and seasonal changes. The tool emphasizes reproducibility by exposing per-date statistics and exportable visuals suitable for reports and dashboards.
GVI Viewer is designed for geospatial analysts, environmental scientists, urban planners, and NGO staff who need consistent, scalable vegetation analytics. It differentiates itself by multi-source support, robust mask handling, and explicit handling of data gaps across dates. Export options include PNG maps, CSV statistics, and GeoTIFF rasters, enabling seamless integration into workflows and archives.
Use cases include monitoring drought impact, assessing crop vigor across regions, and comparing vegetation dynamics between urban and peri-urban areas. The tool adheres to standard geospatial practices, ensuring compatibility with common GIS pipelines and data catalogs.
Key differentiators are its combination of index flexibility, time-series capability, and straightforward exports, all while maintaining strict data quality controls and transparent error handling.