Department of Pure Mathematics, Ferdowsi University of Mashhad (in cooperation with the Center of Excellence in Analysis on Algebraic Structures and Tusi Mathematical Research Group)Khayyam Journal of Mathematics2423-47887120210101Some remarks on chaos in nonautonomous dynamical systems11513012305610.22034/kjm.2020.209183.1631ENAli RezaZamani BahabadiFerdowsi University of MashhadMonaEffatiPure Mathematics, Faculty of Mathematical science, Mashhad, IranBahmanHonaryFerdowsi university of MashhhadJournal Article20191124We introduce the concept of almost thick chaos and continuously almost thick transitivity for continuous maps and nonautonomous dynamical systems (NDS). We show that NDS $f_{1,\infty}$ is sensitive if it is thick transitive and syndetic.<br /> Under certain conditions, we show that NDS $(X,f_{1,\infty})$ generated by a sequence $(f_n)$ of continuous maps on $X$ converging uniformly to $f$ is almost thick transitive if and only if $(X,f)$ is almost thick transitive.<br /> Moreover, we prove that if $f_{1,\infty}$ is continuously almost thick transitive and syndetic, then it is strongly topologically ergodic. In addition, the relationship between the large deviations theorem and almost thick chaos is studied.http://www.kjm-math.org/article_123056_08214b4428e55ce385d320df099089aa.pdf