The Tangent Linear and Adjoint of the FV3 Dynamical Core: Development and Applications

Holdaway, Daniel

关键词: FINITE VOLUME METHOD;    ADJOINTS;    TIME DEPENDENCE;    DATA CORRELATION;    DATA PROCESSING;    MATHEMATICAL MODELS;    TANGENTS;    LINEAR PREDICTION;    NUMERICAL WEATHER FORECASTING;    SENSITIVITY;    ATMOSPHERIC GENERAL CIRCULATION MODELS;    NONLINEAR SYSTEMS;    ERRORS;    DATA PRODUCTS;    DYNAMIC MODELS;    CORES;    EARTH OBSERVING SYSTEM (EOS);   

RP-ID  :  GSFC-E-DAA-TN55874

学科分类：大气科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

GMAO (NASA's Global Modeling and Assimilation Office) has developed a highly sophisticated adjoint modeling system based on the most recent version of the finite volume cubed sphere (FV3) dynamical core. This provides a mechanism for investigating sensitivity to initial conditions and examining observation impacts. It also allows for the computation of singular vectors and for the implementation of hybrid 4DVAR (4-Dimensional Variational Assimilation). In this work we will present the scientific assessment of the new adjoint system and show results from a number of research application of the adjoint system.