TY - JOUR
T1 - PCR-GLOBWB 2: A 5 arcmin global hydrological and water resources model
AU - Sutanudjaja, Edwin H.
AU - Van Beek, Rens
AU - Wanders, Niko
AU - Wada, Yoshihide
AU - Bosmans, Joyce H.C.
AU - Drost, Niels
AU - Van Der Ent, Ruud J.
AU - De Graaf, Inge E.M.
AU - Hoch, Jannis M.
AU - De Jong, Kor
AU - Karssenberg, Derek
AU - López López, Patricia
AU - Peßenteiner, Stefanie
AU - Schmitz, Oliver
AU - Straatsma, Menno W.
AU - Vannametee, Ekkamol
AU - Wisser, Dominik
AU - Bierkens, Marc F.P.
N1 - Generated from Scopus record by KAUST IRTS on 2023-09-18
PY - 2018/6/20
Y1 - 2018/6/20
N2 - We present PCR-GLOBWB 2, a global hydrology and water resources model. Compared to previous versions of PCR-GLOBWB, this version fully integrates water use. Sector-specific water demand, groundwater and surface water withdrawal, water consumption, and return flows are dynamically calculated at every time step and interact directly with the simulated hydrology. PCR-GLOBWB 2 has been fully rewritten in Python and PCRaster Python and has a modular structure, allowing easier replacement, maintenance, and development of model components. PCR-GLOBWB 2 has been implemented at 5 arcmin resolution, but a version parameterized at 30 arcmin resolution is also available. Both versions are available as open-source codes on https://github.com/UU-Hydro/PCR-GLOBWB-model (Sutanudjaja et al., 2017a). PCR-GLOBWB 2 has its own routines for groundwater dynamics and surface water routing. These relatively simple routines can alternatively be replaced by dynamically coupling PCR-GLOBWB 2 to a global two-layer groundwater model and 1-D-2-D hydrodynamic models. Here, we describe the main components of the model, compare results of the 30 and 5 arcmin versions, and evaluate their model performance using Global Runoff Data Centre discharge data. Results show that model performance of the 5 arcmin version is notably better than that of the 30 arcmin version. Furthermore, we compare simulated time series of total water storage (TWS) of the 5 arcmin model with those observed with GRACE, showing similar negative trends in areas of prevalent groundwater depletion. Also, we find that simulated total water withdrawal matches reasonably well with reported water withdrawal from AQUASTAT, while water withdrawal by source and sector provide mixed results.
AB - We present PCR-GLOBWB 2, a global hydrology and water resources model. Compared to previous versions of PCR-GLOBWB, this version fully integrates water use. Sector-specific water demand, groundwater and surface water withdrawal, water consumption, and return flows are dynamically calculated at every time step and interact directly with the simulated hydrology. PCR-GLOBWB 2 has been fully rewritten in Python and PCRaster Python and has a modular structure, allowing easier replacement, maintenance, and development of model components. PCR-GLOBWB 2 has been implemented at 5 arcmin resolution, but a version parameterized at 30 arcmin resolution is also available. Both versions are available as open-source codes on https://github.com/UU-Hydro/PCR-GLOBWB-model (Sutanudjaja et al., 2017a). PCR-GLOBWB 2 has its own routines for groundwater dynamics and surface water routing. These relatively simple routines can alternatively be replaced by dynamically coupling PCR-GLOBWB 2 to a global two-layer groundwater model and 1-D-2-D hydrodynamic models. Here, we describe the main components of the model, compare results of the 30 and 5 arcmin versions, and evaluate their model performance using Global Runoff Data Centre discharge data. Results show that model performance of the 5 arcmin version is notably better than that of the 30 arcmin version. Furthermore, we compare simulated time series of total water storage (TWS) of the 5 arcmin model with those observed with GRACE, showing similar negative trends in areas of prevalent groundwater depletion. Also, we find that simulated total water withdrawal matches reasonably well with reported water withdrawal from AQUASTAT, while water withdrawal by source and sector provide mixed results.
UR - https://gmd.copernicus.org/articles/11/2429/2018/
UR - http://www.scopus.com/inward/record.url?scp=85048867068&partnerID=8YFLogxK
U2 - 10.5194/gmd-11-2429-2018
DO - 10.5194/gmd-11-2429-2018
M3 - Article
SN - 1991-9603
VL - 11
SP - 2429
EP - 2453
JO - Geoscientific Model Development
JF - Geoscientific Model Development
IS - 6
ER -