Zobrazeno 1 - 10
of 161
pro vyhledávání: '"D. Paillard"'
Publikováno v:
Geoscientific Model Development, Vol 17, Pp 3801-3814 (2024)
All climate models use parameterizations and tuning in order to be accurate. The different parameterizations and tuning processes are the primary source of difference between models. Because models are tuned with present observations of Earth, they m
Externí odkaz:
https://doaj.org/article/aa9c24c3a4c24dba90046a3d85abc267
Publikováno v:
Climate of the Past, Vol 19, Pp 1027-1042 (2023)
During the last deglaciation, the climate evolves from a cold state at the Last Glacial Maximum (LGM) at 21 ka (thousand years ago) with large ice sheets to the warm Holocene at ∼9 ka with reduced ice sheets. The deglacial ice sheet melt can impact
Externí odkaz:
https://doaj.org/article/61803a42ee96442294485daa0fb3c926
Autor:
G. Leloup, D. Paillard
Publikováno v:
Earth System Dynamics, Vol 14, Pp 291-307 (2023)
Along with 400 kyr periodicities, multi-million-year cycles have been found in δ13C records over different time periods. An ∼ 8–9 Myr periodicity is found throughout the Cenozoic and part of the Mesozoic. The robust presence of this periodicity
Externí odkaz:
https://doaj.org/article/a3b133c571d84345b3f0f6adebdf065e
Autor:
G. Leloup, D. Paillard
Publikováno v:
Climate of the Past, Vol 18, Pp 547-558 (2022)
Over the Quaternary, ice volume variations are “paced” by astronomy. However, the precise way in which the astronomical parameters influence the glacial–interglacial cycles is not clear. The origin of the 100 kyr cycles over the last 1 million
Externí odkaz:
https://doaj.org/article/05218377d7f0438d8cfda5ca0610040f
Publikováno v:
Climate of the Past, Vol 17, Pp 1139-1159 (2021)
Changes in water mass distribution are considered to be a significant contributor to the atmospheric CO2 concentration drop to around 186 ppm recorded during the Last Glacial Maximum (LGM). Yet simulating a glacial Atlantic Meridional Overturning Cir
Externí odkaz:
https://doaj.org/article/5479f14d06974092a798cd473ae94ed6
Publikováno v:
Earth System Dynamics, Vol 10, Pp 365-378 (2019)
The representation of atmospheric convection induced by radiative forcing is a long-standing question mainly because turbulence plays a key role in the transport of energy as sensible heat, geopotential, and latent heat. Recent works have tried using
Externí odkaz:
https://doaj.org/article/6af66c07d7874f89827a177df9bd0b81
Publikováno v:
Geoscientific Model Development, Vol 11, Pp 453-466 (2018)
This paper presents the inclusion of an online dynamical downscaling of temperature and precipitation within the model of intermediate complexity iLOVECLIM v1.1. We describe the following methodology to generate temperature and precipitation field
Externí odkaz:
https://doaj.org/article/0c82d4f1a2d64b178035a3647fb77ecc
Autor:
D. Paillard
Publikováno v:
Climate of the Past, Vol 13, Pp 1259-1267 (2017)
Since the discovery of ice ages in the 19th century, a central question of climate science has been to understand the respective role of the astronomical forcing and of greenhouse gases, in particular changes in the atmospheric concentration of ca
Externí odkaz:
https://doaj.org/article/df94d34b4ff54deb88b2f060d3d08d66
Publikováno v:
Nonlinear Processes in Geophysics, Vol 22, Iss 2, Pp 187-196 (2015)
We derive rigorous results on the link between the principle of maximum entropy production and the principle of maximum Kolmogorov–Sinai entropy for a Markov model of the passive scalar diffusion called the Zero Range Process. We show analytically
Externí odkaz:
https://doaj.org/article/9e3ba42cf896412ea23d84a57e0d5fc1
Autor:
D. Paillard, F. Parrenin
Publikováno v:
Climate of the Past, Vol 8, Iss 6, Pp 2031-2037 (2012)
The main variations of ice volume of the last million years can be explained from orbital parameters by assuming climate oscillates between two states: glaciations and deglaciations (Parrenin and Paillard, 2003; Imbrie et al., 2011) (or terminations)
Externí odkaz:
https://doaj.org/article/f034f880711b4a62af9a0c0b188acfea