Role of infiltration on land–atmosphere feedbacks in Central Europe: Fully coupled WRF-Hydro simulations evaluated with cosmic-ray neutron soil moisture measurements

Journal of Hydrometeorology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 23, 2024

Abstract The skill of regional climate models partly relies on their ability to represent land–atmosphere feedbacks in a realistic manner, through the coupling with land surface model. However, these often suffer from insufficient or erroneous information soil hydraulic parameters. In this study, fully coupled model WRF-Hydro driven ERA5 reanalysis is employed reproduce over Central Europe horizontal resolution 4 km for period 2017–2020. Simulated moisture compared data cosmic-ray neutron sensors (CRNS) at three terrestrial environmental observatories. Soil parameters continental and global digital datasets (SoilGrids EU-SoilHydroGrids), together Campbell van Genuchten–Mualem retention curve equations, are used assess role infiltration modeled feedbacks. percolation parameter calibrated better capture observed discharge amounts SoilGrids gives lowest mean annual temperature precipitation differences E-OBS product European Climate Assessment & Dataset, which achieved by reducing rootzone, increasing air temperature, decreasing positive moisture–precipitation feedback process. EU-SoilHydroGrids best reproduces CRNS daily variations, despite enhanced biases that generate larger proportion convective favored wet soils spurious peaks. This study demonstrates importance processes realistically

Language: Английский

A high-resolution, 3D groundwater-surface water simulation of the contiguous US: Advances in the integrated ParFlow CONUS 2.0 modeling platform

EarthArXiv (California Digital Library), Journal Year: 2023, Volume and Issue: unknown

Published: July 10, 2023

Large-scale, high-resolution hydrologic modeling is an important tool to address questions of water quantity, availability, and recharge. Continental-to-Global scale models, particularly those that include groundwater, are growing in number. However, many these approaches simplify aspects the system connections between e.g., surface groundwater. The ParFlow CONUS platform a large-scale, hyper-resolution, model relies on integrated solution 3D partial differential equations describe soil, flow. prior version, 1.0, was first large-scale included explicit treatment lateral groundwater flow for contiguous US. Here, we present 2.0 model. This extends coastlines contributing basins United States (i.e., CONUS) consistent with NOAA National Water Model. Here document roughly five years technical development this platform, steady-state simulation results, rigorously compare results 1.0 simulations, evaluate performance based observations. Simulated table depth streamflow were evaluated using more than 635K observations from USGS monitoring wells gauges. Our demonstrate improvement both simulations over generation all Hydrologic Unit Code (HUC) basins. These also suggest current has good excellent entire CONUS, almost half HUC subbasins exhibiting normalized root-square error (RSR). metric not usually compared directly at studies, good-to-excellent exhibited some regions.

Language: Английский