ESIP Federation 2004 : L.B.Pham

S. Berrick, L. Pham, G. Leptoukh,

Z. Liu, H. Rui, S. Shen, W. Teng, T. ZhuNASA Goddard Earth Sciences (GES) Data & Information Services Center (DISC)

Distributed Active Archive Center (DAAC)

Code 902

NASA Goddard Space Flight Center

Greenbelt, Maryland 20771 USA

http://daac.gsfc.nasa.gov/

FOR MORE INFORMATION: Stephen.W.Berrick@nasa.gov

Multi-Sensor Distributive On-line Processing Visualization and Analysis System Using Giovanni

Multi-Sensor Distributive On-line Processing Visualization and Analysis System Using Giovanni

             

Access to data from multiple remote sites as well as local sites

Server-side temporal and spatial subsetting

Server-side processing

Support for multiple data formats including Hierarchical Data Format (HDF), HDF-EOS, network Common Data Form (netCDF), GRIdded Binary (GRIB), and binary.

Support for multiple plot types including area, time, Hovmoller, and image animation

Support for outputting data in ASCII format

Easily configurable to support customized portals for measurements-based projects or disciplines

The ability to use data stored in the current Earth Observing System (EOS) archives for studying regional or global phenomena is highly dependent on having a detailed understanding of the data's internal structure and physical implementation. Gaining this understanding and applying it to data reduction is a time-consuming task that must be undertaken before the core investigation can begin. This is an especially difficult challenge when science objectives require users to deal with large multi-sensor data sets that are usually of different formats, structures, and resolutions. The NASA Goddard Earth Sciences Data and Information Services Center (GES DISC) has taken a major step towards meeting this challenge by developing an infrastructure that supports a Web interface that allows users to perform interactive analysis online without downloading any data. The underlying infrastructure that integrates all the components is called GES-DISC Interactive Online Visualization and Analysis Infrastructure or “Giovanni.“ Giovanni provides interactive, online, analysis tools for data users to facilitate their research.

From the user's perspective, Giovanni is a simple Web application. Both Java and non Java versions are available. The user selects one or more parameters to display along with the spatial area, the temporal range, and the plot type. Plot types include area, time series, Hovmoller, and animation. ASCII output, appropriate for GIS or other user applications, is also available. The user may also select one of several color options.

• SEAWIFS – monthly global 9-km product• MODIS – atmosphere monthly global• TRMM – three hourly, daily, monthly and global

Time Plot

ASCII Text

Area Plot

Hovmoller (longitude-time)

Data Description

Main Screen

Ocean Color : http://reason.gsfc.nasa.gov/Giovanni/

Atmosphere : http://lake.nascom.nasa.gov/movas/

Rainfall and Precip. : http://lake.nascom.nasa.gov/tovas/

FOCUS ON RESULTS ADD VALUE TO RESULTS USE GIOVANNI FOR FURTHER ANALYSIS PUBLISHBRING THE EARTH INTO FOCUS

Remote sensing data and data products at no cost

Modular algorithm integration for high-volume processing

Complex data interpretations and statistical analyses

Focus on analysis without having to download data

ABSTRACT

ARCHITECTURE

FEATURES

WEB INTERFACE

THE BRIDGE BETWEEN DATA AND SCIENCE

WEB ACCESS

DATA AVAILABLE

IIGARSS2004-106-12284