Integrating Spatial Data Management and Web-GIS Consultation for Multidisciplinary Spectral Archives: The INGV Spectral Library

The management and consultation of heterogeneous spectral datasets present significant challenges in multidisciplinary research, where records from different campaigns, instruments, and scientific domains must remain linked to consistent metadata, geographic provenance, and analytical tools within a unified framework. This paper presents the design, implementation, and operational use of the INGV Spectral Library, a web-based spatial data infrastructure integrating structured metadata management, georeferenced Web-GIS consultation, and browser-native spectral preprocessing within a single environment. The system relies on a three-tier architecture and organizes spectral records through a domain-aware metadata model associating each entry with geographic, thematic, and domain-specific descriptors. Consultation is supported through two complementary access modes: an interactive map enabling spatial exploration and direct map-to-record navigation, and a metadata-driven filtered table supporting progressive retrieval across domains including geology, mineralogy, environmental surveys, and cultural heritage. Integrated preprocessing tools—first derivative, continuum removal, and sensor spectral response function-based resampling—operate directly within the environment without export to external software. A controlled ingest and harmonization workflow ensures metadata consistency and spectral validity prior to record exposure. The paper discusses the platform’s geoinformation design principles, spatial consultation model, and current limitations, contributing a practical example of georeferenced spatial data management applied to multidisciplinary spectral archives.