Observationally constrained stratospheric residence times

General description Age-of-air observations serve as a proxy to constrain stratospheric residence time estimates using a simpe linear relation. Technical description This dataset record hosts a configurable residence-time dataset from age-of-air observations and model support fields, written as a NetCDF product for reproducible analysis of stratospheric transport constraints. The NetCDF output uses time, latitude, and vertical coordinates and contains fused observational fields (aoa_obs_mean, aoa_obs_sem, aoa_obs_n_source) plus residence-time estimates (residence_time, residence_time_hemispheric, residence_time_global) and uncertainty variables, including residence_time_sem, residence_time_hemispheric_sem, and residence_time_global_sem. A companion provenance manifest records the resolved configuration, runtime environment, checksums for observation/model inputs and outputs, per-stage timing and status, and explicit lineage links between the generated NetCDF file and its contributing source datasets.