Abstract
Downscaling of water withdrawals from regional/national to local scale is a fundamental step and also a common problem when integrating large scale economic and integrated assessment models with high-resolution detailed sectoral models. Tethys, an open-access software written in Python, is developed with statistical downscaling algorithms, to spatially and temporally downscale water withdrawal data to a finer scale. The spatial resolution will be downscaled from region/basin scale to grid (0.5 geographic degree) scale and the temporal resolution will be downscaled from year to month. Tethys is used to produce monthly global gridded water withdrawal products based on estimates from the Global Change Assessment Model (GCAM). Funding statement: PNNL is operated for DOE by Battelle Memorial Institute under contract DE-AC05-76RL01830
Highlights
Downscaling of water withdrawals from regional/national to local scale is a fundamental step and a common problem when integrating large scale economic and integrated assessment models with high-resolution detailed sectoral models
The spatial resolution will be downscaled from region/basin scale to grid (0.5 geographic degree) scale and the temporal resolution will be downscaled from year to month
Tethys is used to produce monthly global gridded water withdrawal products based on estimates from the Global Change Assessment Model (GCAM)
Summary
Tethys – A Python Package for Spatial and Temporal Downscaling of Global Water Withdrawals. An open-access software written in Python, is developed with statistical downscaling algorithms, to spatially and temporally downscale water withdrawal data to a finer scale. Xanthos is a globally gridded hydrology model that operates at monthly scale Resolving such a mismatch in spatial and temporal scales facilitated coupling these models together. The main objective of Tethys is to reconstruct global monthly gridded (0.5 geographic degree) water withdrawal datasets by spatial and temporal downscaling water withdrawal estimates at region/basin and annual scale (Figure 1). As an open-access software, Tethys applies statistical downscaling algorithms, to spatially and temporally downscale water withdrawal data from annual region/basin scale into monthly grid scale. Water Withdrawal of Livestock rgn_tot_withd_liv.csv Water Withdrawal of Livestock (total) withd_manuf.csv
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