The Helioviewer Project: Browsing, Visualizing and Accessing Petabytes of Solar Data

Details The Helioviewer Project: Browsing, Visualizing and Accessing Petabytes of Solar Data The Helioviewer Project: Browsing, Visualizing and Accessing Petabytes of Solar Data

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21640223m&link_type=abstract

American Astronomical Society, AAS Meeting #216, #402.23; Bulletin of the American Astronomical Society, Vol. 41, p.876

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Scientific paper

After its successful launch, NASA's Solar Dynamics Observatory (SDO) will soon return more than 1 Terabyte worth of images per day. This unprecedented torrent of data will pose an entirely new set of challenges with respect to data access, data browsing and searching for interesting data while avoiding the proverbial search for "a needle in a haystack". In order to fully exploit SDO's wealth of data and connect it to data from other solar missions like SOHO, scientists need to be able to interactively browse and visualize many different data products spanning a large range of physical length and time scales. So far, all tools available to the scientific community either require downloading all potentially relevant data sets beforehand in their entirety or provide only movies with a fixed resolution and cadence. The Helioviewer project offers a solution to these challenges by providing a suite of tools that are based on the new JPEG 2000 compression standard and enable scientists and the general public alike to intuitively browse visualize and access petabytes of image data remotely:
- JHelioviewer, a cross-platform application that offers movie streaming and real-time processing using the JPEG 2000 Interactive Protocol (JPIP) and OpenGL, as well as feature/event overlays.
- helioviewer.org, a web-based image and feature/event browser.
- Server-side services to stream movies of arbitrary spatial and temporal resolution in a region-of-interest and quality-progressive form, a JPEG 2000 image database and a feature/event server. All the services can be accessed through well-documented interfaces (APIs).
- Code to convert images into JPEG 2000 format.
This presentation will give an overview of the Helioviewer Project, illustrate new features and highlight the advantages of JPEG 2000 as a data format for solar physics that has the potential to revolutionize the way high-resolution image data are disseminated and analyzed.

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