Datasets used for analysis and plotting in the study by Zhou et al. "Antarctic vortex dehy

Model-simulated water vapour and ozone mixing ratios from 2022 to 2030, used to analyze the impact of the Hunga Tonga-Hunga Ha'apai volcanic eruption. The data was generated by Xin Zhou of Chengdu University of Information Technology using the TOMCAT/SLIMCAT 3-D chemical transport model forced with ECMWF ERA5 meteorology. It includes a control simulation and several perturbed runs to quantify the longevity and ozone impacts of the injected water vapour plume.

Use Cases

• Analyzing the transport and longevity of the Hunga Tonga water vapour plume based on the perturbed model runs.
• Quantifying the impact of volcanic water vapour on stratospheric ozone levels based on the simulated ozone mixing ratios.
• Comparing atmospheric conditions with and without the volcanic perturbation based on the control and HT run simulations.
• Studying the role of polar stratospheric cloud particle sedimentation based on the run with sedimentation turned off.

Strengths

• Includes multiple model scenarios: a control run, a primary perturbed run, and three future evolution runs.
• Model was run at a defined horizontal resolution of 2.8 degrees and 32 vertical levels from the surface to about 60 km.
• Simulations cover a specific time period from 2022 to 2030, with a control run integrated from 1980.
• Perturbed run explicitly injects 150 Tg of H2O into the low-mid stratosphere at southern subtropical latitudes.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Xin Zhou, Chengdu University of Information Technology

Collection Method

Simulated using the TOMCAT/SLIMCAT 3-D off-line chemical transport model forced with ECMWF ERA5 meteorology.

Time Range

1980 to 2030 (primary analysis period 2022-2023, with extensions to 2030).

Geography

Global, with a focus on the Southern Hemisphere and Antarctic vortex region.