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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. - PowerPoint PPT Presentation
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Ionospheric Science, Models and Ionospheric Science, Models and Databases atDatabases at
Haystack ObservatoryHaystack Observatory
Haystack Observatory/Lincoln Laboratory Haystack Observatory/Lincoln Laboratory Collaboration WorkshopCollaboration Workshop
March 9, 2007March 9, 2007
Madrigal Database/Virtual ObservatoryMadrigal Database/Virtual Observatory
Distributed, open-source, standards-based local databases that share metadata and have VO-features built in
●AMISR
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
Cedar database format Loading programs can bewritten in Python, C, or Tcl
Other instrument types in Madrigal: Meteor radar, Digisonde, Fabry-Perot, Geophysical indices
What is the local Madrigal database?What is the local Madrigal database?
User
Webinterface
Web services API•Python API•Matlab API•Allows for easy VO access•From anywhere on internet
Database standard – Cedar file formatMetadata standard – Madrigal standardReal-time and historical data
How is Madrigal a Virtual How is Madrigal a Virtual Observatory?Observatory?
Searches from local Madrigal site can Searches from local Madrigal site can link to any other sitelink to any other site
User chooses whetherthe search is local orincludes all Madrigalsites
Implemented via shared,standard metadata
eGY, IPY, IHYeGY, IPY, IHY
All inspired by the success of the 1957 All inspired by the success of the 1957 International Geophysical Year 50 years International Geophysical Year 50 years agoago
eGYeGY – The electronic Geophysical Year – The electronic Geophysical Year IPYIPY – The International Polar Year – The International Polar Year
• Starts March 2007Starts March 2007 IHYIHY – The International Heliophysical Year – The International Heliophysical Year
(2007)(2007) For space physics, all three overlapFor space physics, all three overlap
Arecibo
Millstone
Sondrestrom
America Sector
Lower Midlatitudes
Shigaraki
St Santin
Subauroral
Midlatitude
Tromso
Highlatitude
Svalbard
East Asia
European Sector
Electron density annual variations derived from long-term datasets
for worldwide ISRs
Millstone / Sondrestrom Convection Model
St Santin, June, 350-400 km
Storm-Time Penetration Electric FieldsStorm-Time Penetration Electric Fields
AURORAL OVAL
LOW
SAPS E FIELD
Ring Current / SAPS/ SED PlumeRing Current / SAPS/ SED Plume(Sub Auroral Polarization Stream Electric Field)(Sub Auroral Polarization Stream Electric Field)
Duskside Region-2 FACs Duskside Region-2 FACs close poleward across low-close poleward across low-conductance gapconductance gap
SAPS: Strong poleward SAPS: Strong poleward Electric Fields are set up Electric Fields are set up across the sub-auroral across the sub-auroral ionosphereionosphere
SAPS erodes the cold SAPS erodes the cold plasma of the ionosphere plasma of the ionosphere and the outer and the outer plasmasphereplasmasphere
Magnetosphere-Ionosphere Coupling at theMagnetosphere-Ionosphere Coupling at thePlasmasphere Boundary LayerPlasmasphere Boundary Layer
GPS/ISR Study of Flux of Plasmaspheric Material to the Magnetopause
September 2005 wind featuresSeptember 2005 wind features
Sep 2005 Fall climatology
Wind magnitude in September 2005 is higher than average wind during fall equinox for both zonal and meridional components
MIT Haystack Observatory Atmospheric Sciences GroupMIT Haystack Observatory Atmospheric Sciences Group
Haystack Observatory's Atmospheric Sciences Group studies all Haystack Observatory's Atmospheric Sciences Group studies all levels of the atmosphere using incoherent scatter radar (ISR) and levels of the atmosphere using incoherent scatter radar (ISR) and distributed arrays of radiowave instruments such as Global distributed arrays of radiowave instruments such as Global Positioning System (GPS) receivers. Positioning System (GPS) receivers.
The group has been operating for more than forty years, collecting The group has been operating for more than forty years, collecting ionospheric measurements spanning a range of latitudes covering ionospheric measurements spanning a range of latitudes covering most of Eastern North America. Most of these measurements are most of Eastern North America. Most of these measurements are available from the Madrigal Database. available from the Madrigal Database.
Recent GPS measurements have extended this to global coverage.Recent GPS measurements have extended this to global coverage.
The unique location of Millstone Hill near the Earth's plasmapause, The unique location of Millstone Hill near the Earth's plasmapause, combined with the wide reach of the Millstone Hill steerable combined with the wide reach of the Millstone Hill steerable antenna, have made it a premier facility for mid-latitude antenna, have made it a premier facility for mid-latitude ionospheric research, magnetospheric studies and thermospheric ionospheric research, magnetospheric studies and thermospheric measurements. measurements.
In addition to improving our fundamental understanding of the In addition to improving our fundamental understanding of the near-Earth environment, this research has immediate relevance to near-Earth environment, this research has immediate relevance to the welfare of people and our technological society since it the welfare of people and our technological society since it contributes to the development of improved space weather alerts contributes to the development of improved space weather alerts and storm predictions. and storm predictions.