Multi-scenario, high-resolution Lagrangian transport modeling for the analysis of the Asian tropopause aerosol layer / Jan Heinrich Clemens. Wuppertal, 2024
Inhalt
- Introduction
- The Asian tropopause aerosol layer
- Surface air pollution and emissions in Asia
- Transport within the Asian monsoon circulation
- Composition and chemistry of the ATAL
- Climate response to Asian aerosol and trace gases
- Lagrangian transport modeling
- Reanalysis data & models
- ECMWF reanalysis
- The Lagrangian transport models MPTRAC and CLaMS
- High-performance Lagrangian transport modelling
- Implementation of diabatic transport into MPTRAC
- Evaluation of diabatic advection in MPTRAC
- Diagnostics to evaluate the diabatic transport in MPTRAC
- Results of the evaluation
- Examples of trajectories and transport deviations
- Transport uncertainties over 1 day
- Uncertainty growth during 90 day forward calculations
- Air parcel distribution on seasonal timescales
- Differences between diabatic and kinematic calculations
- Conservation of dynamical tracers in the stratosphere
- Conclusions
- Source regions of the Asian tropopause aerosol layer on the Indian subcontinent
- Data and methods
- Results
- Transport pathways from source regions to the measured ATAL
- Scenario intercomparison of contributions from source regions and related transport pathways
- Scenario intercomparison of the temporal evolution of transport from the MBL to the measured ATAL
- Backscatter changes associated with changes in the transport and source regions
- Discussion and conclusions
- Summary
- The Asian tropopause aerosol layer
- Performance optimization of Lagrangian transport calculations
- Performance analysis of netcdf format, compression and chunking options
- Optimization experiments with parallel IO and the MPI-3 shared memory model in CLaMS
- Conclusions
- Evaluation of diabatic advection in MPTRAC
- Source regions of the Asian Tropopause Layer on the Indian subcontinent
- Definition of source regions
- Transport pathways from source regions
- PDF for different scenarios
- PDF differences for different scenarios
- Correlation to all regions
- Sensitivity tests for simulations employing the ECP
- List of figures
- List of tables
- List of abbreviations
- List of symbols
- Bibliography