TY - RPRT TI - Randomized Preconditioned Solvers for Strong Constraint 4D-Var Data Assimilation AU - Subrahmanya, Amit N. [Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg, VA (United States)] AU - Rao, Vishwas [Argonne National Laboratory (ANL), Argonne, IL (United States)] AU - Saibaba, Arvind K. [North Carolina State University, Raleigh, NC (United States)] PY - 2025 DO - 10.1007/s11081-025-10018-9 UR - https://www.osti.gov/biblio/3374733 ID - 3374733 ER -