Abstract. The NASA NEESPI Data Center is an online multi-sensor archive and distribution system of satellite remote sensing data designed to provide advanced data management capabilities in support of the NEESPI scientific objectives. Its tools include data analysis, visualization, and other techniques enhancing exploration of scientific data. The NASA NEESPI Data Center portal integrates remote sensing data from MODIS, AIRS, OMI, and other instruments onboard polar-orbiting satellites with customized data products from climatology data sets and models into a single 'one-stop-shop' interdisciplinary NASA-NEESPI data center. The system promotes inter-comparison and on-line analysis of scientific data from various sources by bringing data to common grids while preserving available and statistically important information from higher resolution inputs. The NEESPI instance of Giovanni features the first collection of atmospheric, fire, and snow and ice data products, organized to provide quick and user-friendly exploration capabilities.