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, A. Arribas, G. S. Jones, D. Copsey, J. R. Knight, and W. J. Tennant, 2013: A new HadGEM3-A based system for attribution of weather and climaterelated extreme events, J. Clim., 26, 2756-2783, https://doi.org/10.1175/JCLI-D-12-00169.1. Christidis, N., 2021: Using CMIP6 multi-model ensembles for near real-time

change. © Crown copyright 2025, Met Office Page 10 of 12 OFFICIAL-SENSITIVE References Christidis, N., P. A. Stott, A. Scaife, A. Arribas, G. S. Jones, D. Copsey, J. R. Knight, and W. J. Tennant, 2013: A new HadGEM3-A based system for attribution of weather and climaterelated extreme events, J. Clim

Current issue date: 14 August 2023 Original approval(s): Expiry date: 13 August 2026 ISO 14001 - 3 August 2017 Certificate identity number: 10543563 Certificate of Approval This is to certify that the Management System of: Met Office FitzRoy Road, Exeter, EX1 3PB, United Kingdom has been approved

geomagnetic storm, so far, of this solar cycle • Major disturbance of ionosphere: – Night-time ionosphere over S. England heavily depleted, compared to normal – EGNOS (GPS correction system) degraded, see left (red = best performance, blue = worst) • Aurora seen in north of UK • Cause may

: ……………………………………climatic zone(s) Morning Afternoon Night Rainfall distribution Maximum temperature Minimum temperature Hazards Tuesday Wednesday Thursday Friday Saturday Sunday Monday Key to rainfall distribution symbols: rain likely to fall in few places (less than 33%), rain likely to fall in many places (33% -67

: ……………………………………climatic zone(s) Morning Afternoon Night Rainfall distribution Maximum temperature Minimum temperature Hazards Tuesday Wednesday Thursday Friday Saturday Sunday Monday Key to rainfall distribution symbols: rain likely to fall in few places (less than 33%), rain likely to fall in many places (33% -67

and vegetation Neil Kaye Neil specialises in creating bespoke visualisations and interactive web tools for climate science Dr Fraser Lott Fraser works on the detection and attribution of climate change, particularly of climate-related events. Dr Gareth S Jones Gareth's main research activity

capacity horizontal of user organisation(s) scaling Enhancing Planning to Increasing Enhancing the the scalability address capacity the enabling of of spontaneous the service environment developer scaling Determining Increasing team the role users’ of diversification capacity Planning to Making

Deeper discovery Session 2 – Climate change and 2050’s forecast https://showyourstripes.info/ Professor Ed Hawkins Global temperature change www.metoffice.gov.uk/schools 2 © Crown Copyright 2024, Met Office Global Projections www.metoffice.gov.uk/schools 3 © Crown Copyright 2024, Met Office Met

for results at 250hPa (which equates to FL340), over the Northern Hemisphere (90N-20N). The graphs below display the accuracy of these two forecasts, with the smaller the error being a better value forecast to airline operators. Performance measure: ≤ 2.85m/s for Wind and ≤ 0.56K for Temperature (based