ghana climate change vulnerability and adaptation assessment

parameter (temperature and precipitation) the ensemble average, standard deviation (Std Dev), minimum(Min) and maximum (Max) values are presented.Table 3.6 Potential change in temperature and % change in precipitation, WalembelleWalembelle Dry Season Wet SeasonB1 A1B A2 Mean B1 A1B A2 Mean2050 Temperature Mean 1.67 2.37 2.26 2.10 1.55 2.17 2.04 1.92Std Dev 0.51 0.61 0.81 0.71 0.43 0.47 0.45 0.52Min 0.50 0.92 -0.21 -0.21 0.72 1.17 1.12 0.72Max 2.22 3.27 3.05 3.27 2.39 3.01 2.84 3.012080 Temperature Mean 2.39 3.45 3.98 3.27 2.09 3.14 3.65 2.96Std Dev 0.55 0.77 1.24 1.11 0.59 0.81 0.81 0.98Min 1.62 1.99 0.44 0.44 0.85 1.44 1.78 0.85Max 3.66 4.73 5.82 5.82 3.33 4.75 5.12 5.122050 Precipitation Mean 17.56 16.75 28.56 20.96 -0.56 -1.19 0.50 -0.42Std Dev 35.68 31.82 42.37 36.50 6.90 10.26 9.78 8.93Min -44.00 -34.00 -20.00 -44.00 -14.00 -18.00 -18.00 -18.00Max 68.00 82.00 139.00 139.00 11.00 21.00 15.00 21.002080 Precipitation Mean 14.50 35.69 43.56 31.25 -0.88 -1.00 -1.31 -1.06Std Dev 39.49 50.80 73.38 56.51 8.92 13.13 13.55 11.79Min -24.00 -33.00 -61.00 -61.00 -19.00 -24.00 -25.00 -25.00Max 141.00 153.00 235.00 235.00 16.00 24.00 23.00 24.00Potential change in temperature (°C) and percentage change in rainfall for the dry (Dec-Feb) and wet (Jun-Aug) seasons at Bawku (Sudan Savanna Zone) in 2050 and 2080 based on an ensemble of 16 atmosphereoceancoupled global climate models across three emissions scenarios (B1, A1B, A2). For each season, valuesare given by emission scenario and an overall mean across emission scenarios. For each parameter(temperature and precipitation) the ensemble average, standard deviation (Std Dev), minimum (Min) andmaximum (Max) values are presented.Table 3.7 Potential change in temperature and % change in rainfall, BawkuBawku Dry Season Wet SeasonB1 A1B A2 Mean B1 A1B A2 Mean2050 Temperature Mean 1.69 2.36 2.27 2.11 1.54 2.18 2.05 1.92Std Dev 0.49 0.58 0.77 0.68 0.44 0.49 0.46 0.53Min 0.73 1.20 0.02 0.02 0.68 1.13 1.08 0.68Max 2.27 3.30 3.07 3.30 2.37 3.07 2.78 3.072080 Temperature Mean 2.37 3.42 3.95 3.25 2.11 3.15 3.65 2.97Std Dev 0.54 0.75 1.20 1.08 0.57 0.82 0.83 0.98Min 1.55 2.14 0.60 0.60 0.89 1.38 1.72 0.89Max 3.61 4.65 5.88 5.88 3.26 4.70 5.08 5.082050 Precipitation Mean 17.31 11.31 21.56 16.73 -0.13 -0.81 0.63 -0.10Std Dev 32.37 28.69 36.81 32.37 7.33 10.89 10.81 9.63Min -51.00 -28.00 -31.00 -51.00 -13.00 -20.00 -20.00 -20.00Max 73.00 72.00 107.00 107.00 14.00 23.00 19.00 23.002080 Precipitation Mean 18.19 35.13 34.19 29.17 -0.75 -0.56 -0.75 -0.69Std Dev 33.94 55.97 64.68 52.57 9.43 14.42 15.11 12.94Min -23.00 -41.00 -60.00 -60.00 -18.00 -25.00 -28.00 -28.00Max 105.00 166.00 193.00 193.00 19.00 30.00 29.00 30.00PRECIPITATION PROJECTIONSProjections of mean annual rainfall averaged over the country (UNDP report) from different models in theensemble project a wide range of changes in precipitation for Ghana with about half the models projectingincreases and half decreases (McSweeney et al., no date a). Seasonally, the projections tend towards decreasesGHANA CLIMATE CHANGE VULNERABILITY AND ADAPTATION ASSESSMENT 33