TY  - JOUR
AU  - Furusho-Percot, C.
AU  - Goergen, K.
AU  - Hartick, C.
AU  - Poshyvailo-Strube, L.
AU  - Kollet, S.
TI  - Groundwater Model Impacts Multiannual Simulations of Heat Waves
JO  - Geophysical research letters
VL  - 49
IS  - 10
SN  - 0094-8276
CY  - Hoboken, NJ
PB  - Wiley
M1  - FZJ-2022-02165
SP  - e2021GL096781
PY  - 2022
AB  - Climate change increases the frequency and intensity of heat waves, bringing along multiple adverse impacts on ecosystems, human health, societies, and the economy. Groundwater influences the near surface air temperature evolution through land–atmosphere interactions. Using simplified and shallow groundwater representations, reproducing heat waves in a regional climate model (RCM) is challenging. Currently, RCMs applied over Europe exhibit a warm bias. This study analyzes heat waves over a 13-year evaluation period, comparing the terrestrial systems modeling platform (TSMP) with an explicit groundwater representation to a EURO-CORDEX RCM ensemble, the ERA5 reanalysis, and observations. The TSMP multiannual heat wave statistics are consistent with observations and reanalysis data. We attribute the lower absolute deviations of heat wave metrics simulated by TSMP to the improved hydrology including 3D groundwater flow. The findings emphasize the importance of hydrological process representation in RCMs.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000798222900001
DO  - DOI:10.1029/2021GL096781
UR  - https://juser.fz-juelich.de/record/907696
ER  -