RT Journal Article
T1 Quantification of subsurface heat storage in a GCM simulation
A1 MacDougall, Andrew H.
A1 González Rouco, Jesús Fidel
A1 Stevens, M. Bruce
A1 Beltrami, Hugo
AB Shallow bottom boundary conditions (BBCs) in the soil components of general circulation models (GCMs) impose artificial limits on subsurface heat storage. To assess this problem we estimate the subsurface heat content from two future climate simulations and compare to that obtained from an offline soil model (FDLSM) driven by GCM skin temperatures. FDLSM is then used as an offline substitute for the subsurface of the GCM ECHO-G. With a 600-m BBC and driven by ECHO-G future temperatures, the FDLSM subsurface absorbs 6.2 (7.5) times more heat than the ECHO-G soil model (10 m deep) under the Intergovernmental Panel on Climate Change (IPCC) A2 (B2) emission scenario. This suggests that shallow BBCs in GCM simulations may underestimate the heat stored in the subsurface, particularly for northern high latitudes. This effect could be relevant in assessing the energy balance and climate change in the next century.
PB American Geophysical Union
SN 0094-8276
YR 2008
FD 2008-07-04
LK https://hdl.handle.net/20.500.14352/51820
UL https://hdl.handle.net/20.500.14352/51820
LA eng
NO Copyright 2008 by the American Geophysical Union. This research was funded by grants from NSERC Discovery, AIF (ACOA), CFCAS, and ACEnet (HB); Ramón y Cajal (JFGR); NSERC PGS-D (MBS); and NSERC USRA (AHM).
NO Natural Sciences and Engineering Research Council of Canada (NSERC)
NO Atlantic Innovation Fund (AIF), Canadá
NO Canadian Foundation for Climate and Atmospheric Sciences (CFCAS)
NO Atlantic Computational Excellence Network (ACEnet), Canadá
NO Programa Ramón y Cajal (MEC)
NO NSERC PGS-D
NO Undergraduate Student Research Awards (USRA), NSERC
NO Atlantic Canada Opportunities Agency (ACOA)
DS Docta Complutense
RD 10 abr 2025