Data for: Recent trends and variability in hydroclimatological variables of the Okavango Delta and its terminal basins
Description
This dataset contains annual hydroclimatological time series for the Okavango Delta and its terminal basins in northern Botswana, 1974–2019 (46 years). It includes mean annual river discharge (m³/s) at five gauging stations (Mohembo, Maun Bridge, North Gate, Mogapelwa and Rakops), and annual rainfall (mm), potential evapotranspiration (mm) and the aridity index (rainfall/PET, dimensionless) at five climate stations (Shakawe, Maun, Mababe, Sehithwa and Rakops). North Gate discharge is available only for 1987–2010 (24 years). Blank cells indicate missing data; zero values indicate no recorded flow. The data were used to analyse trends, change points and drivers of variability in the associated article [citation]. Data sources: [state sources, copied from the Datasets section of your manuscript]. File: Data_Masaka2026.xlsx (one sheet, 46 rows × 21 columns).
Files
Steps to reproduce
Annual series were compiled for each station from monthly data from respective Government bodies responsible for data monitoring and collection. i.e., the Department of Water and Sanitation (DWS) for river discharge and the Department of Meteorological Services (DMS) for climatological data. 2. Discharge is the mean of [daily/monthly] flows per year; rainfall and PET are annual totals. 3. Aridity index = annual rainfall ÷ annual PET.
Institutions
- University of BotswanaGaborone, Gaborone