research report Simultaneous state and parameter estimation in newell's simplified kinematic wave model with heterogeneous data Publication Date January 1, 2015 Author(s) Zhe (Jared) Sun, Wenlong Jin, Stephen Ritchie Suggested Citation Zhe Sun, Wen-Long Jin and Stephen G Ritchie (2015) Simultaneous state and parameter estimation in newell's simplified kinematic wave model with heterogeneous data.