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Jack Ireland & Helioviewer Team ADNET Systems, Inc. Helioviewer Discovery for Everyone Everywhere
Helioviewer Discovery for Everyone Everywhere Desmond Amadigwe Jack Ireland Patrick Schmiedel George Dimitoglou Ben Karel ...
The Helioviewer Project <ul><li>Challenges </li></ul><ul><li>Huge amounts   of data: </li></ul><ul><li>SOHO: ~0.2 Gbyte/da...
The Helioviewer Project <ul><li>Goals </li></ul><ul><li>Enable efficient data browsing and visualization for users everywh...
Components <ul><li>Image service </li></ul><ul><li>Database of images from multiple observatories </li></ul><ul><li>JPEG20...
Image storage with JPEG2000 Advantages: <ul><li>Multiple resolutions   [Images at different resolutions are automatically ...
Remote Access to Image Data <ul><li>JPIP = JPEG2000 Interactive Protocol </li></ul><ul><li>JPIP provides a client−server a...
SDO-AIA image data <ul><li>JPEG2000 compression by a factor 16 yields reasonable browse EIT images. </li></ul><ul><li>16x ...
Feature/event service <ul><li>Works with heterogenous feature/event services and archives, e.g., HEK, VSO, stand-alone cat...
www.helioviewer.org Date/Time navigator Ajax, PHP, ImageMagick, Kakadu/JPEG2000, Javascript libraries
www.helioviewer.org Data overlay selector  & manager
www.helioviewer.org Feature/Event selector
www.helioviewer.org zoom bar and centering
www.helioviewer.org step forward in time add LASCO C2 add SEEDS CME catalog zoom out / widen field of view
www.helioviewer.org
www.helioviewer.org add LASCO C3, vary layer opacity, zoom out
www.helioviewer.org toggle full screen
www.helioviewer.org click on an icon to get details on an event
www.helioviewer.org view FITS keywords for selected image press ‘D’ for quick details
Jhelioviewer Java, JPIP server, Kakadu
Jhelioviewer movie controls image processing and overview
Future developments <ul><li>our own server </li></ul><ul><li>pipeline real-time SOHO image data (SPD mtg) </li></ul><ul><l...
Thank you! www.helioviewer.org http://achilles.nascom.nasa.gov/~dmueller
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Transcript of "hv_talk.ppt"

  1. 1. Jack Ireland & Helioviewer Team ADNET Systems, Inc. Helioviewer Discovery for Everyone Everywhere
  2. 2. Helioviewer Discovery for Everyone Everywhere Desmond Amadigwe Jack Ireland Patrick Schmiedel George Dimitoglou Ben Karel Benjamin Wamsler Bernhard Fleck Daniel Müller Alen Agheksanterian Keith Hughitt Juan Pablo Garcia Ortiz
  3. 3. The Helioviewer Project <ul><li>Challenges </li></ul><ul><li>Huge amounts of data: </li></ul><ul><li>SOHO: ~0.2 Gbyte/day </li></ul><ul><li>SDO: ~1400 Gbyte/day </li></ul><ul><li>Large range of time & length-scales </li></ul><ul><li>Many different data products </li></ul><ul><li>Distributed archives </li></ul><ul><li>Multiple interest groups </li></ul>There are many distributed sources of information for one physical system - the heliosphere.
  4. 4. The Helioviewer Project <ul><li>Goals </li></ul><ul><li>Enable efficient data browsing and visualization for users everywhere </li></ul><ul><li>Transparent access to multiple distributed archives e.g. HEK, VSO, GOES flare catalogs, ground based data </li></ul><ul><li>Extensible, open design that requires a minimal effort to join </li></ul>Create a discovery infrastructure that allows users to explore the heliosphere as a physical system
  5. 5. Components <ul><li>Image service </li></ul><ul><li>Database of images from multiple observatories </li></ul><ul><li>JPEG2000 compression scheme - many advantages </li></ul><ul><li>API to use service - open to all </li></ul><ul><li>Feature/Event service </li></ul><ul><li>A web service that interacts with multiple archives, e.g. HEK, VSO, GOES flare catalogs. </li></ul><ul><li>API to use service - open to all </li></ul><ul><li>Browse tools </li></ul><ul><li>www.helioviewer.org - web interface </li></ul><ul><li>JHelioviewer - Java application </li></ul>
  6. 6. Image storage with JPEG2000 Advantages: <ul><li>Multiple resolutions [Images at different resolutions are automatically created during wavelet compression process] </li></ul><ul><li>Random image access [Selected parts + quality layers can be accessed] </li></ul><ul><li>Flexible file format [for metadata] </li></ul><ul><li>Well-suited for archives [lossless mode, “Compress once, decompress many ways”] </li></ul>JPEG2000 = new wavelet-based compression standard multiple heliospheric length-scales ✓ ✓ selectable sub-regions ✓ FITS header ✓ lower data transfer requirements for distributed archives
  7. 7. Remote Access to Image Data <ul><li>JPIP = JPEG2000 Interactive Protocol </li></ul><ul><li>JPIP provides a client−server architecture for transmitting JPEG2000 imagery over networks </li></ul><ul><li>Can query arbitrary parts, quality levels of images and movies </li></ul><ul><li>IDL, Solarsoft, Kakadu JPEG2000 libraries </li></ul>movie cube level 1 level 2 level 3 level 4 level 5 4096 2 px image 5 level DWT we need transfer only those wavelet coefficients required for the requested field of view and time
  8. 8. SDO-AIA image data <ul><li>JPEG2000 compression by a factor 16 yields reasonable browse EIT images. </li></ul><ul><li>16x compression @ 1 minute cadence yields ~ 0.3 Tb/year/wavelength. </li></ul><ul><li>Keep most recent data (1-3 mo.) at full cadence? </li></ul><ul><li>Permanent library of browsable images for entire mission. </li></ul><ul><li>Very easy to concatenate JPEG2000 files to make movies and serve them remotely. </li></ul>
  9. 9. Feature/event service <ul><li>Works with heterogenous feature/event services and archives, e.g., HEK, VSO, stand-alone catalogs (e.g., GOES) </li></ul><ul><li>Transparent to the user </li></ul><ul><li>API is open to other developers </li></ul><ul><li>Many types of meta-data are handled </li></ul>
  10. 10. www.helioviewer.org Date/Time navigator Ajax, PHP, ImageMagick, Kakadu/JPEG2000, Javascript libraries
  11. 11. www.helioviewer.org Data overlay selector & manager
  12. 12. www.helioviewer.org Feature/Event selector
  13. 13. www.helioviewer.org zoom bar and centering
  14. 14. www.helioviewer.org step forward in time add LASCO C2 add SEEDS CME catalog zoom out / widen field of view
  15. 15. www.helioviewer.org
  16. 16. www.helioviewer.org add LASCO C3, vary layer opacity, zoom out
  17. 17. www.helioviewer.org toggle full screen
  18. 18. www.helioviewer.org click on an icon to get details on an event
  19. 19. www.helioviewer.org view FITS keywords for selected image press ‘D’ for quick details
  20. 20. Jhelioviewer Java, JPIP server, Kakadu
  21. 21. Jhelioviewer movie controls image processing and overview
  22. 22. Future developments <ul><li>our own server </li></ul><ul><li>pipeline real-time SOHO image data (SPD mtg) </li></ul><ul><li>SDO JPEG2000 pipeline </li></ul><ul><li>VSO mediated data access </li></ul><ul><li>movie generation via www.helioviewer.org </li></ul><ul><li>better feature/event browsing and navigation </li></ul><ul><li>complex query tool - HEK, VSO </li></ul><ul><li>web browser plug-in for JPEG2000 streaming </li></ul><ul><li>establish multiple Helioviewer service providers </li></ul><ul><li>social networking </li></ul>
  23. 23. Thank you! www.helioviewer.org http://achilles.nascom.nasa.gov/~dmueller
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