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10-14 15-19 ≥20 Water run-off is the surface and sub-surface water flowing into rivers. This is the water available for use from precipitation, taking into account losses due to evaporation. Future change in water demand for irrigation 2 3 1 4 6 7 5 8 Present day population density 2 4 8 16 31 62
for UKCP09 users 1 What is happening to the UKCP09 website, User Interface and User Interface 2 Which emissions scenarios are used in UKCP18 3 Which data products have been updated and which are new 4 The rotated-pole grid and Ordnance Survey’s British National Grid 2 UKCP18 Guidance: UKCP18 for UKCP09
Contents Contents ..................................................................................................................... 1 Executive Summary ..................................................................................................... 2 Key Tracker Questions
First explorations Climate change jargon busting 1 2 3 If your group is new to the concept of climate change, you can start by asking them what they know about it. Explain that climate change is the long-term shift in average weather patterns across the world. Since the mid-1800s, humans have
was recorded. New station record beating the previous high of 32.8 °C on 29 July 1948, using digitised data records back to 1931. Guernsey Airport had a night-time minimum temperature of 23.7 °C on 4/5 August 2003, its highest on record. Previous highest night-time (12-hour) minimum was 22.9 °C on 2/3
in the winter in 2080-2099 with respect to 1981-2000. The Probability Density Function shown in Figure 2 is an alternative representation of the same distribution. As probability is represented by the area under a PDF curve, the y-axis in Figure 2 is referred to as a probability density. Figure 2 Probability
WAFS 10 YEAR PLAN PHASE 1 PHASE 2 In Nov 2020: NEW 0.25° Icing, Turbulence and CB gridded data NEW Improved Icing and Turbulence algorithms NEW OPMET data in IWXXM format Retired: In-cloud turbulence gridded data In Nov 2022: All SIGWX will cover the range FL100-FL600 Some SIGWX elements included
Major hurricanes 2012 17 10 2 2013 13 2 0 2014 8 6 2 2015 10 4 2 2016 14 6 4 2017 16 10 6 2018 14 8 2 2019 17 6 3 2020 28 13 7 2021 20 7 4 Climate change Tropical cyclones derive their energy from warm water, and sea surface temperatures above 26°C are necessary to sustain them. Tropical
million square km below the 1981-2010 average, and only 0.09 million square km above the lowest value for this date, which occurred in 2012 (Figure 1). Figure 1. Daily Arctic sea ice extent since April 2019, compared with recent years and the 1981-2010 average with ± 1 and 2 standard deviation
reaches tropical storm status. 2. Tropical cyclone activity Tropical cyclone activity SWI AUS SAT TOTAL Tropical depressions (<35 knots) 0 0 0 0 Tropical storms (35-63 knots) 7 6 1 14 Hurricanes/typhoons (>63 knots) 4 8 0 12 Total 11 14 1 26 Basin name abbreviations: SWI : South-West Indian (west
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