Welcome to the Madrigal Database
at Haystack Observatory

Madrigal is an upper atmospheric science database used by groups throughout the world. Madrigal is a robust, World Wide Web based system capable of managing and serving archival and real-time data, in a variety of formats, from a wide range of upper atmospheric science instruments. Data at each Madrigal site is locally controlled and can be updated at any time, but shared metadata between Madrigal sites allow searching of all Madrigal sites at once from any Madrigal site.

GPS TEC data has moved!!!
GPS TEC data has moved to http://cedar.openmadrigal.org as of Aug 3, 2018. At that site it now includes the normal data product (data binned into 1 degree latitude by 1 degree longitude by five minutes), or, for recent years, the complete line-of-sight measurements that are used to create each day's binned data product. Note this line of sight data is only available after the TEC is processed in batch, two months after real time. Note also that this dataset is very large; typically with over 100 million measurements in each daily file (and that number is growing). Line-of-site data is available going back two years, and more is being added each week.

Data can be accessed from a variety of Madrigal sites, including (but not limited to) Millstone Hill, USA, Arecibo, Puerto Rico, EISCAT, Norway, SRI International, USA, Cornell University, USA, Jicamarca, Peru, the Consortium of Resonance and Rayleigh Lidars, the Institute of Geology and Geophysics, the Chinese Academy of Sciences, the University of Oulu, Finland, and finally, the archival CEDAR site. To see a list of all Madrigal sites, choose Full Data Access and select Go to a different Madrigal site. Data can also be accessed directly, using APIs which are available for several popular programming languages (Matlab, python, and IDL). A Subversion archive of all Madrigal software and documentation is available from the Open Madrigal Web site. The latest version of Madrigal and the remote API's may also be downloaded from there.

[Open Madrigal logo]
[CEDAR logo]
[Chinese Academy of Sciences logo]
[Arecibo logo]
[NSF logo]
[NSF logo]
[Boston University Imaging Center logo]
[MHR logo]
[EISCAT logo]
[SRI logo]
[Cornell logo]
[IGP logo]
University of Oulu

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