Research Article
Evaluation of Seven Gap-Filling Techniques for Daily Station-Based Rainfall Datasets in South Ethiopia
Table 1
Description of five meteorological stations in Wolaita Zone and the surroundings.
| | Geographic information | Stations | | Areka | Bele | Boditi | Hosana | Shone |
| | Latitude (degree) | 7.07 | 6.92 | 6.95 | 7.57 | 7.13 | | Longitude (degree) | 37.7 | 37.53 | 37.96 | 37.85 | 37.95 | | Altitude (meter) | 1804 | 1240 | 2043 | 2307 | 1959 |
| | Rainfall | | Data coverage | 1988/2017 | 1987–2018 | 1987–2018 | 1987–2018 | 1987–2018 | | Missing data (%) | 30.2 | 21.5 | 4.5 | 2.7 | 8.4 | | Monthly total value | 1536.84 | 1250.16 | 1264.66 | 1212.34 | 1560.58 | | Minimum value | 29.54 | 28.74 | 34.72 | 11.92 | 37.06 | | Maximum value | 209.1 | 174.44 | 182.08 | 165.66 | 235.94 | | Mean value | 128.07 | 104.18 | 105.4 | 101.03 | 130.05 | | Standard deviation | 68.7 | 61.13 | 53.94 | 55.1 | 68.63 |
| | Maximum temperature | | Data coverage | 1992–2017 | NA | 1987–2018 | 1987–2018 | NA | | Missing data (%) | 29.4 | NA | 4.6 | 14.8 | NA | | Minimum value | 22.2 | NA | 21 | 19.34 | NA | | Maximum value | 29.5 | NA | 28.4 | 25.6 | NA | | Mean value | 25.7 | NA | 25 | 22.7 | NA | | Standard deviation | 2.5 | NA | 2.5 | 2.14 | NA |
| | Minimum temperature | | Data coverage | 1992–2017 | NA | 1987–2018 | 1987–2018 | NA | | Missing data (%) | 19.36 | NA | 4.7 | 12.5 | NA | | Minimum value | 12.95 | NA | 11.99 | 8.65 | NA | | Maximum value | 15.44 | NA | 14.29 | 12.03 | NA | | Mean value | 14.14 | NA | 13.28 | 10.81 | NA | | Standard deviation | 0.72 | NA | 0.75 | 0.95 | NA |
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NA is data not available.
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