Semilocal dynamical correlation with increased localization

Using a localization technique for the correlation energy density and a linear response constraint, we construct a localized semilocal model for dynamical correlation. The model is incorporated into a meta-generalized gradient approximation functional which is very accurate for jellium surfaces, Hooke's atom at all regimes, and works well both in conjunction with a semilocal exchange and together with local and nonlocal exact exchange.