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© Crow n Copyright 2021, Met Office Doppler filtering of stationary ground clutter stationary ground clutter weather “notch out” clutter reconstruct weather signal (CLEAN-AP TM ) 0 m/s 0 m/s 0 m/s Automatic detection and removal of ground clutter contamination on weather radars, Warde & Torres (2009

-hourly interval to T+120 Model run times 00 UTC & 12 UTC to T+120 06 UTC & 18 UTC to T+48 Resolution Data are released at the model’s base resolution of 0.352° E/W by 0.234° N/S (approximately 25km at 50 degrees north). Format GRIB2 Domain Northern Hemisphere Area A: Latitude 89.9° to 0.3°N, Area B

days (1 st percentile of daily average surface temperature) in winter. Shown are (left) RCM model bias, (centre left) original UKCP CPM model bias and (centre) test CPM model bias with graupel code error fixed, for the standard unperturbed ensemble member compared to NCIC observations. Also shown

England. 88 knots (101 m.p.h.) was recorded at St Bees Head (Cumbria) and 89 knots (102 m.p.h.) at Aberdaron on the Lleyn peninsula (Gwynedd). The synoptic chart at 0600 GMT on 8 January 2005 Map of highest gusts 7-8 January 2005 January 11/12 - another very deep depression (944 mb) tracked north

Information, Products and Services 6 th August 9 th December Winter Weather Hazards 1 st October 10 th November Climate Change and Community 9 th September 18 th November 2 Issued: June 2025 OFFICIAL OFFICIAL Met Office Information, Products and Services Aims and objectives: This 1½-hour course

0.8 10.3 1.4 14.1 1.1 122.7 82 103.9 128 16.1 3.0 0.0 0.0 England & Wales 21.5 2.7 11.8 2.1 16.6 2.4 225.3 121 60.4 88 10.1 -0.1 0.0 0.0 England N 20.5 2.7 11.1 1.9 15.8 2.3 208.8 122 74.2 98 12.0 0.8 0.0 0.0 England S 22.6 3.0 12.2 2.1 17.4 2.6 246.4 125 40.1 68 8.0 -1.3 0.0 0.0 Scotland N 15.8

weather prediction filtered 500 models Atmosphere-onl y model 5-year climate simulations filtered 25 models Coupled model Multi-decadal climate simulations 1 st set of coupled PPE filter extended PPE New coupled model variants Multi-decadal climate simulations Projections! 4 Q: Can we utilise data from

. (2014, 2015) CHIRPS v2 is a quasi-global (50°S - 50°N) gridded dataset derived from: (i) the monthly precipitation climatology product CHPClim (based on satellite and gauge data); (ii) quasiglobal geostationary thermal infrared satellite observations from the Climate Prediction Center (CPC, Janowiak et

valid on the day it was printed. Revision History Date of this revision: 27 th May 2016 Date of Next revision: 1 st June 2017 Revision date 27 May 2016 First issue Summary of Changes Distribution This document has been distributed to Name Title Date of Issue Version Page 2 Product Description

The National Meteorological Archive (NMA) in Exeter holds observation data, in paper format, for Met Office sites in England, Wales and around the world including St Helena and the Falkland Islands. It also holds a large collection of published materials, as well as private weather diaries which