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Ionospheric Science, Models and Databases at Haystack Observatory

Ionospheric Science, Models and Databases at Haystack Observatory. Haystack Observatory/Lincoln Laboratory Collaboration Workshop March 9, 2007. Madrigal Database/Virtual Observatory. Distributed, open-source, standards-based local databases that share metadata and have VO-features built in.

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Ionospheric Science, Models and Databases at Haystack Observatory

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  1. Ionospheric Science, Models and Databases atHaystack Observatory Haystack Observatory/Lincoln Laboratory Collaboration Workshop March 9, 2007

  2. Madrigal Database/Virtual Observatory Distributed, open-source, standards-based local databases that share metadata and have VO-features built in ●AMISR

  3. The Madrigal database stores data from a wide variety of upper atmosphere research instruments in the Cedar database format. Incoherent Scatter Radar TEC via GPS MF Radar Loading programs can be written in Python, C, or Tcl Cedar database format Other instrument types in Madrigal: Meteor radar, Digisonde, Fabry-Perot, Geophysical indices

  4. What is the local Madrigal database? User • Web services API • Python API • Matlab API • Allows for easy VO access • From anywhere on internet Web interface Database standard – Cedar file format Metadata standard – Madrigal standard Real-time and historical data

  5. How is Madrigal a Virtual Observatory? • Searches from local Madrigal site can link to any other site User chooses whether the search is local or includes all Madrigal sites Implemented via shared, standard metadata

  6. eGY, IPY, IHY • All inspired by the success of the 1957 International Geophysical Year 50 years ago • eGY – The electronic Geophysical Year • IPY – The International Polar Year • Starts March 2007 • IHY – The International Heliophysical Year (2007) • For space physics, all three overlap

  7. Shigaraki Electron density annual variations derived from long-term datasets for worldwide ISRs Arecibo LowerMidlatitudes St Santin East Asia Millstone Subauroral Millstone / Sondrestrom Convection Model Midlatitude Tromso Sondrestrom Highlatitude Svalbard America Sector European Sector

  8. St Santin, June, 350-400 km

  9. Storm-Time Penetration Electric Fields

  10. Ring Current / SAPS/ SED Plume(Sub Auroral Polarization Stream Electric Field) • Duskside Region-2 FACs close poleward across low-conductance gap • SAPS: Strong poleward Electric Fields are set up across the sub-auroral ionosphere • SAPS erodes the cold plasma of the ionosphere and the outer plasmasphere AURORAL OVAL LOW SSAPS E FIELD

  11. GPS/ISR Study of Flux of Plasmaspheric Material to the Magnetopause Magnetosphere-Ionosphere Coupling at thePlasmasphere Boundary Layer

  12. September 2005 wind features Fall climatology Sep 2005 Wind magnitude in September 2005 is higher than average wind during fall equinox for both zonal and meridional components

  13. MIT Haystack Observatory Atmospheric Sciences Group • Haystack Observatory's Atmospheric Sciences Group studies all levels of the atmosphere using incoherent scatter radar (ISR) and distributed arrays of radiowave instruments such as Global Positioning System (GPS) receivers. • The group has been operating for more than forty years, collecting ionospheric measurements spanning a range of latitudes covering most of Eastern North America. Most of these measurements are available from the Madrigal Database. • Recent GPS measurements have extended this to global coverage. • The unique location of Millstone Hill near the Earth's plasmapause, combined with the wide reach of the Millstone Hill steerable antenna, have made it a premier facility for mid-latitude ionospheric research, magnetospheric studies and thermospheric measurements. • In addition to improving our fundamental understanding of the near-Earth environment, this research has immediate relevance to the welfare of people and our technological society since it contributes to the development of improved space weather alerts and storm predictions.

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