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In this contribution, we present the StaggerGrid, a collaborative project forthe construction of a comprehensive grid of time-dependent, three-dimensional(3D), hydrodynamic model atmospheres of solar- and late-type stars withdifferent effective temperatures, surface gravities, and chemical compositions.We illustrate the main characteristics of these 3D models and their effects onthe predicted strengths, wavelength-shifts, and shapes of spectral lines,highlighting the differences with respect to calculations based on classical,one-dimensional, hydrostatic models, and discuss some of their possibleapplications to elemental abundance analysis of stellar spectra in the contextof large observational surveys.

The StaggerGrid Project: a Grid of 3D Model Atmospheres for High-Precision Spectroscopy