Back to matchesWe found a matchYour institution may have rights to this item. Sign in to continue.TitleAn Adjoint‐Free Alternating Direction Method for Four‐Dimensional Variational Data Assimilation With Multiple Parameter Tikhonov Regularization.AuthorsTian, Xiangjun; Han, Rui; Zhang, HongqinPublicationEarth & Space Science, 2020, Vol 7, Issue 11, p1ISSN2333-5084Publication typeArticleDOI10.1029/2020EA001307