Assignment_4_2015_v1 - (i the seasonal variation in the CO...

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PHYS0629/PHYS1056 Weather and Climate First Semester 2015-16 Assignment 4 (Due date: 27 November 2015) Q1 [16 marks] (a) Refer to Figures A to D. Indicate which figure likely matches the climate of Hong Kong, Ho Chi Minh City, Beijing and Honolulu respectively. (b) Explain why: (i) Figure B has a much larger annual temperature range than that of Figure C (ii) Figure D has more rainfall than that of Figure C Figure A Figure B
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Figure C Figure D
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Q2. [14 marks] (a) Figure 1 shows the sea surface temperature anomalies in degree Celsius. Describe what is the status of the ENSO condition as depicted in Figure 1 ? (b) Briefly explain what is Southern Oscillation Index and what is the expected sign of the index corresponding to the ENSO status in Figure 1 ? (c) Briefly describe two potential impacts of La Nina to the climate of Hong Kong ? (Source: National Oceanic and Atmospheric Administration, USA) Figure 1
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Q 3. [20 marks] (a) Figure 2 which show the monthly average atmospheric concentration of carbon dioxide (CO 2 ) measured at the Mauna Loa (Hawaii) from 1960 to 2011. Give the major cause of :
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Unformatted text preview: (i) the seasonal variation in the CO 2 (ii) the long term rising trend of the CO 2 level (b) Briefly explain what is greenhouse effect. What will happen if there is no greenhouse gas in the atmosphere ? (c) Briefly explain what is global warming potential (GWP) and CO 2-equivalents (CO 2-eq). (d) Refer to Table 1 for the GWP of different greenhouse gases (GHG). Village A has 1000 people. Each year this village consumes 3,000,000 kWh of electricity and emits another 50 tonnes of methane and 2 tonnes of nitrous oxide. Assume the emission factor reported by the local power company is 0.8 kg CO 2-eq/kWh and there is no other GHG emission involved. Calculate the annual per capita GHG emission of village A (in terms of tonnes CO 2-eq). Atmospheric CO2 at Mauna Loa Observatory 310 320 330 340 350 360 370 380 390 400 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010 YEAR Parts per million Monthly mean (Data source : NOAA ESRL Global Monitoring Division, Boulder, Colorado, USA ( http://esrl.noaa.gov/gmd/ )) Figure 2 Table 1...
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