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variability on inter-annual timescales. The ENSO cycle is illustrated in the figure by a time-series of the monthly sea surface temperature anomalies in a region of the central equatorial Pacific. This 'Niño3.4' region (5°S-5°N,120°W-170°W) is one of several used to monitor changes in the tropical Pacific

is important Materials required • • Cipher wheels • • Decoding D-Day slides ‘Top Secret’ worksheet Printed map(s) (optional) Curriculum Links • how people’s lives have shaped this nation • communication • History/ People, Past Events and Societies – understand English literacy and language – written

Figure 17. Map showing the 30-year (1971–2000) average number of days per year with rainfall amounts greater than or equal to 1 mm. 250 Nettlecombe (altitude 96 m) Plymouth (altitude 50 m) 200 Days 150 100 50 0 J F M A M J J A S O N D J F M A M J J A S O N D 250 Princetown (altitude 453 m) Yeovilton

into the long edge of the cork at right angles to each other. Step 4: Cut out four small squares of card and label with the four main points of the compass; N, E, S, W. Attach these to the end of each matchstick with Blu-tack. Step 6: Fill the bottle with sand (or pebbles or something else to weigh

meteorology and from 1989-2002 using ERA-Interim meteorology, amounting to more than 100000 maps. The model output estimates the 30-day timeintegrated air concentration (dosage) at each grid box (40 km horizontal resolution and 0-100m above ground level) from a release of 1 g/s at Mace Head

References Abas, N. et al. (2017) ‘Review of GHG Emissions in Pakistan Compared to SAARC Countries’, Renewable and Sustainable Energy Reviews, 80, pp. 990–1016. doi: 10.1016/j.rser.2017.04.022. Abbas, S. et al. (2011) ‘National Level Assessment of Mangrove Forest Cover in Pakistan’, International

Current issue date: 14 August 2023 Original approval(s): Expiry date: 13 August 2026 ISO 9001 - 3 August 2017 Certificate identity number: 10543517 Certificate of Approval This is to certify that the Management System of: Met Office FitzRoy Road, Exeter, EX1 3PB, United Kingdom has been approved

psychology; computer science), but with Social Sciences being particularly valuable. References: Potter, S., Harrison, S., & Kreft, P. (2021). The Benefits and Challenges of Implementing Impact-Based Severe Weather Warning Systems: Perspectives of Weather, Flood, and Emergency Management Personnel

indicates the similarities between the scenarios. Table 2 SRES scenarios that are most similar to the new RCPs, in terms of median global temperature increase by 2100 References Caesar, J., Palin, E., Liddicoat, S et al. Response of the HadGEM2 Earth System Model to Future Greenhouse Gas Emissions Pathways

ON THE IMPORTANCE OF POLARIZATION IN HELIOSPHERIC IMAGERS S. J. Tappin RAL Space Introduction ● ● ● Heliospheric imagers, have been shown to be a powerful tool for tracking CMEs (and other solar wind structures) through the heliosphere. Hitherto they have only detected total intensity. Coronagraphs