A limited memory algorithm for bound constrained optimization
SIAM Journal on Scientific Computing
Algorithm 778: L-BFGS-B: Fortran subroutines for large-scale bound-constrained optimization
ACM Transactions on Mathematical Software (TOMS)
Adjoints of nonoscillatory advection schemes
Journal of Computational Physics
A framework for the numerical treatment of aerosol dynamics
Applied Numerical Mathematics
Adjoint sensitivity analysis of regional air quality models
Journal of Computational Physics
Computational aspects of chemical data assimilation into atmospheric models
ICCS'03 Proceedings of the 2003 international conference on Computational science
Ensemble–Based data assimilation for atmospheric chemical transport models
ICCS'05 Proceedings of the 5th international conference on Computational Science - Volume Part II
On adaptive mesh refinement for atmospheric pollution models
ICCS'05 Proceedings of the 5th international conference on Computational Science - Volume Part II
Total energy singular vectors for atmospheric chemical transport models
ICCS'05 Proceedings of the 5th international conference on Computational Science - Volume Part II
Analysis of discrete adjoints for upwind numerical schemes
ICCS'05 Proceedings of the 5th international conference on Computational Science - Volume Part II
Discrete second order adjoints in atmospheric chemical transport modeling
Journal of Computational Physics
Development and acceleration of parallel chemical transport models
SpringSim '10 Proceedings of the 2010 Spring Simulation Multiconference
Variational chemical data assimilation with approximate adjoints
Computers & Geosciences
Hi-index | 31.45 |
Air quality prediction plays an important role in the management of our environment. Computational power and efficiencies have advanced to the point where chemical transport models can predict pollution in an urban air shed with spatial resolution less than a kilometer, and cover the globe with a horizontal resolution of less than 50km. Predicting air quality remains a challenge due to the complexity of the governing processes and the strong coupling across scales. While air quality prediction is closely aligned with weather prediction, there are important differences, including the role of pollution emissions and their associated large uncertainties. Improvements in air quality prediction require a close integration of observations. As more atmospheric chemical observations become available chemical data assimilation is expected to play an essential role in air quality forecasting. In this paper advances in air quality forecasting are discussed with an emphasis on data assimilation. Applications of the four-dimensional variational method (4D-Var) and the ensemble Kalman filter (EnKF) approach are presented and the computation challenges are discussed.