Exploring Aura Data Products with Giovanni

The NASA GSFC Atmospheric Composition Data and Information Services Center (ACDISC) has developed Giovanni, a web-based tool for the visualization and analysis of its atmospheric composition data sets. Giovanni allows on-line interactive data exploration, analysis, and downloading of subsetted data from multiple sensors independent of the underlying file format. This presentation will focus on the Giovanni development efforts made in supporting Aura MLS and OMI data. In the future HIRDLS will also be supported. Several plot types are available within Giovanni depending on the parameter selected: time-series, spatial distribution, vertical profile, animation, or Hovmoller (latitude vs. time and longitude vs. time) plot along with simple statistics. The images generated during the Giovanni session can be saved. Data for the selected region, time period and parameter can also be downloaded in ASCII format. Additionally, several other Giovanni instances have been developed to support satellite data from: 1) UARS HALOE (profiles of ozone, trace gases, water vapor, temperature, and aerosol extinction); 2) TOMS (column ozone, aerosol index, effective surface reflectivity, erythemal UV); 3) AIRS (column ozone, and vertical profiles of water vapor, relative humidity, temperature, geopotential height, etc.); and 4) Aqua and Terra MODIS (aerosols, clouds, and water vapor). A future goal for Giovanni would allow users to do intercomparisons of data from Aura with these other atmospheric data sets. Giovanni is a simple, yet powerful tool enabling investigators to conduct regional or global long-term and short-term studies, as well as data validation.