  Modern cosmic ray experiments consisting of large array of particle detectors
measure the signals of electromagnetic or muon components or their combination.
The correction for an amount of atmosphere passed is applied to the surface
detector signal before its conversion to the shower energy. Either Monte Carlo
based approach assuming certain composition of primaries or indirect estimation
using real data and assuming isotropy of arrival directions can be used. Toy
surface arrays of different sensitivities to electromagnetic and muon
components are assumed in MC simulations to study effects imposed on
attenuation curves for varying composition or possible high energy anisotropy.
The possible sensitivity of the attenuation curve to the mass composition is
also tested for different array types focusing on a future apparatus that can
separate muon and electromagnetic component signals.
