Data to support "Reduced winter-time Clear Air Turbulence in the trans-Atlantic region under Stratospheric Aerosol Injection by Katie L Barnes, Anthony C Jones, Paul D Williams and James M Haywood, Submitted to Geophysical Research Letters, November 2024"

This dataset contains all the UKESM1 climate model output needed to reproduce Figures 1-4 in the paper "Reduced winter-time Clear Air Turbulence in the trans-Atlantic region under Stratospheric Aerosol Injection by Katie L Barnes, Anthony C Jones, Paul D Williams and James M Haywood, Submitted to Geophysical Research Letters, November 2024". UKESM1 is the Met Office Earth System Model (N96 resolution) with simulations using a fully-coupled ocean-atmosphere following CMIP6 protocol.

All files are CF-1.7 compliant and in NetCDF format with appropriate metadata. Each file contains 6 hourly data for the 30 simulated years used in the paper (50 for the pre-industrial control period).

The following simulations are included, following ScenarioMIP and GeoMIP specifications:

Folder | Simulation name | Time period-------------------------------------------------------------piControl | PiControl | 2250-2299historical | Historical | 1985-2014ssp245 | SSP2-4.5 | 2070-2099ssp585 | SSP5-8.5 | 2070-2099g6sulfur | G6sulfur | 2070-2099

The files use CMIP-like naming conventions.

VARIABLE_LEVEL_TIMEPERIOD_MODEL_EXPERIMENT_STARTDATE-ENDDATE_SEASON.nc

The variables comprise:

Short name | Description (units, if any)-------------------------------------------------------------ua | zonal wind (m.s-1)va | meridional wind (kg.m-3)ta | air temperature (K)

All figures in the paper were produced using Python (3.11) and Iris scientific analysis software.

All data is Crown Copyright, Met Office, and is made available under the terms of the Non-Commercial Government Licence: http://www.nationalarchives.gov.uk/doc/non-commercial-government-licence/version/2/

Description of the UKESM1 model is provided in Sellar, A. A., et al.: UKESM1: Description and evaluation of the U.K. Earth System Model. Journal of Advances in Modeling Earth Systems, 11, 4513–4558. https://doi.org/10.1029/2019MS001739, 2019.

Description of the ScenarioMIP specifications are provided here: O'Neill, B. C., et al.: The Scenario Model Intercomparison Project (ScenarioMIP) for CMIP6, Geosci. Model Dev., 9, 3461–3482, https://doi.org/10.5194/gmd-9-3461-2016, 2016.

Description of G6sulfur is provided here: Kravitz, B., et al. : The Geoengineering Model Intercomparison Project Phase 6 (GeoMIP6): simulation design and preliminary results, Geosci. Model Dev., 8, 3379–3392, https://doi.org/10.5194/gmd-8-3379-2015, 2015.