  We present a homogeneous set of stellar atmospheric parameters Teff, log g,
[Fe/H] for MILES, a new spectral stellar library covering the range 3525 - 7500
angstrom at 2.3 angstrom (FWHM) spectral resolution. The library consists of
985 stars spanning a large range in atmospheric parameters, from super
metal-rich, cool stars to hot, metal-poor stars. The spectral resolution,
spectral type coverage and number of stars represent a substantial improvement
over previous libraries used in population synthesis models. The atmospheric
parameters that we present here are the result of a previous, extensive
compilation from the literature. In order to construct a homogeneous dataset of
atmospheric parameters we have taken the sample of stars of Soubiran, Katz &
Cayrel, which has very well determined fundamental parameters, as the standard
reference system for our field stars, and have calibrated and bootstrapped the
data from other papers against it. The atmospheric parameters for our cluster
stars have also been revised and updated according to recent metallicity
scales, colour-temperature relations and improved set of isochrones.
