Neco Model Questions Vol1 2018 Geography Question 5

The following table gives the average monthly temperature (\(^\circ\)C) and total rainfall (mm) for a location. | Month | Temp (°C) | Rainfall (mm) | |-------|----------|---------------| | Jan | 28 | 20 | | Feb | 30 | 30 | | Mar | 32 | 80 | | Apr | 33 | 150 | | May | 31 | 200 | | Jun | 27 | 250 | | Jul | 24 | 300 | | Aug | 23 | 280 | | Sep | 25 | 180 | | Oct | 27 | 100 | | Nov | 28 | 50 | | Dec | 29 | 30 | (a) Using the Köppen climate classification, determine the climate type (e.g., Aw, Am, etc.) for this location. (b) Estimate the annual potential evapotranspiration (PET) in mm using the Thornthwaite method, where \[\nI = \sum_{i=1}^{12}\left(\frac{T_i}{5}\right)^{1.514},\n\qquad\n a = 6.75\times10^{-7}I^{3} - 7.71\times10^{-5}I^{2} + 1.792\times10^{-2}I + 0.49239,\n\]\n\[\n\text{PET}_i = 16\left(\frac{10T_i}{I}\right)^{a}\;(\text{mm}).\n\]\nGive the climate type and the annual PET rounded to the nearest ten millimetres.