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Table 4 Seasonal variability of the mean climatic and environmental factors in Ndumo area, uMkhanyakude, South Africa (n = 580)

From: Modelling the spatial and seasonal distribution of suitable habitats of schistosomiasis intermediate host snails using Maxent in Ndumo area, KwaZulu-Natal Province, South Africa

Variable Rainy Post-rainy Cold/dry Hot/dry
Mean ± SD Mean ± SD Mean ± SD Mean ± SD
Tampl (°C) 15.29 ± 1.62 14.50 ± 1.34 17.23 ± 1.36 20.74 ± 1.88
EVI 0.43 ± 0.05 0.37 ± 0.04 0.26 ± 0.05 0.28 ± 0.05
NDVI 0.68 ± 0.06 0.66 ± 0.06 0.51 ± 0.08 0.50 ± 0.07
NDWI 0.46 ± 0.08 0.44 ± 0.10 0.21 ± 0.13 0.18 ± 0.11
Rainfall (mm) 91.19 ± 5.51 41.28 ± 3.73 12.76 ± 1.39 62.64 ± 3.21
Tmax (°C) 35.53 ± 1.58 31.11 ± 1.11 29.11 ± 1.15 36.72 ± 1.85
Tmin (°C) 20.15 ± 0.42 16.48 ± 0.87 11.85 ± 0.96 15.98 ± 0.59
  1. Abbreviations: EVI Enhanced Vegetation Index, NDVI Normalised Difference Vegetation Index, NDWI Normalised Difference Water Index, SD standard deviation, T ampl temperature amplitude, T max maximum temperature, T min minimum temperature