  At Pic du Midi observatory we carry out a solar survey with images of the
photosphere, prominences and corona. This survey, named CLIMSO (CLIch\'es
Multiples du SOleil), is in the following spectral lines: Fe XIII corona (1.075
micron), H-alpha (656.3 nm) and He I (1.083 micron) prominences, H-alpha and Ca
II (393.4 nm) photosphere. All frames cover 1.3 times the diameter of the Sun
with an angular resolution approaching one arc second. The frame rate is one
per minute per channel (weather permitting) for the prominences and
chromosphere, and one per hour for the Fe XIII corona. This survey started in
2007 for the disk and prominences, and in 2015 for the corona. We have almost
completed one solar cycle, and hope to cover several more, keeping the same
wavelengths or adding others. Aims: Make the CLIMSO images easier to use and
more profitable for the scientific community. Methods: Providing
'science-ready' data. We have improved the contrast capabilities of our
coronagraphs, which now provide images of the Fe XIII corona, in addition to
the previous spectral channels. We have also implemented an autoguiding system
based on a diffractive Fresnel array for precise positioning of the Sun behind
the coronagraphic masks. Results: The data (images and films) are publicly
available and downloadable through virtual observatories and dedicated sites:
e.g. http://climso.irap.omp.eu. For the H-alpha and and Ca II channels we
calibrate the data into physical units, independent of atmospheric or
instrumental conditions: we provide solar maps of spectral radiances inW m^-2
sr^-1 nm^-1. The instrumental improvements and the calibration process are
presented in this paper.

Instrumentation and Methods for Astrophysics