the highest annual rainfall in ghana is recorded at
This means that there are difficulties in identifying long term trends. Extensive quality control was performed by the manuscript authors, along with a team of experts from the GMet. Based on a 20-year baseline climate observation, it is forecasted that maize and other cereal crop yields will reduce by 7% by 2050. The amount of rainfall over Ghana is known to have been particularly high in the 1960s. Studies have shown that the annual rainfall in Ghana is highly variable on inter‐annual and inter‐decadal timescales [2]. Very high annual rainfall totals between 1500–1900 mm are recorded at the south-western part of the country. The daily rainfall dataset used in this report is provided by the GMet (Ghana Meteorological Agency) and consists of daily rainfall amounts recorded at 590 stations covering all of Ghana, with a much higher density of stations in the southern half of the country. The mean annual rainfall total over Ghana was computed using GPCC data. Nyankpala experiences a unimodal pattern of rainfall with mean annual rainfall of 118.61 mm within 95 days with average annual temperature of 28.2°C (Nkrumah et al. 2014). From Fig. Because the country sits at the intersection of three hydro-climatic zones, the climate of Ghana is expected to become incredibly variable. 3, the highest rainfall erosivity index of 200.4 mm depicting very high erosion risk, was recorded in 2003 while the lowest, 73.5 mm depicting low erosion risk, was recorded in 2004. In January 2018 the record temperature of 35.6 °C was reported here. If my memory serves me right, the lowest temperature ever recorded in Ghana was 9 degrees Celsius recorded at Bole in the Northern region. The mean annual rainfall erosivity was 129.8 mm at the site. The hottest summer from July to September, based on all 21 weather stations in Ghana below 640 metres altitude, was recorded in 2019 with an average temperature of 25.9 °C. It can be observed that, high annual rainfall totals ranging from 900–1900 mm are recorded over the the entire nation . The variation in rainfall agrees with analysis of Ghana Environmental Protection Agency [EPA, 2015b] which projected a reduction in rainfall on average between 2.8% and 10.9% by 2050 in the Savannah agroecological zone over the coming decades but contravenes the findings of Jung and Kunstmann that a moderate increase in rainfall was anticipated in the northern regions of Ghana. The highest amount of average monthly rainfall was recorded in June (182.1 mm) and contributed to 14.3% of annual rainfall, followed by September with 12.8%, and the lowest was in January with 1.4% of annual total followed by December with 2.3%. This average temperature will normally be measured every 4 to 6 hours, thus also including the nights. Normally, this value is 25.2 degrees Celsius. Climate change in Ghana will have wide reaching impacts on the country. This fell within the high erosivity category, as can be interpreted from Table 1.


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