MEDOC, the space solar data center at Orsay (www.medoc-ias.u-psud.fr) is now providing a database of synoptic DEM maps, obtained using the SDO/AIA data. This interface has the advantage of being simple, intuitive, very stable and fast.
The purpose of the Gaussian AIA DEm Maps (GAIA-DEM) database is to provide synoptic DEM inversions of the AIA data. The Gaussian approximation is used to describe the main features of the true DEM by its first moments.
The data are accessible via an easy to use web interface (http://medoc-dem.ias.u-psud.fr) that allows users to request DEM maps by selecting a date range, at a sampling range of 6 hours (3 hours soon!). For each date, maps of the three Gaussian fit parameters (central temperature, total emission measure and thermal width) and of the chi squared are available in FITS format (see the user manual online for a detailed description of each map). Users can preview the maps before downloading them. In addition, users can also display the initial SDO/AIA images, using the Helioviewer tool.
This web interface was build using Sitools2, a tool developed by CNES, the french space agency, and supports most browsers (Firefox, Chrome and Safari but NOT Internet Explorer).
We encourage everyone in Europe and beyond to use this new service!
C. Guennou, F. Auchère, K. Bocchialini, E. Soubrié, (IAS), S. Parenti (ROB), P. Alingery (ITTVIS), J.C Malappert (CNES), AKKA Technologies