Laurent Li
Biographic Data
| ID | 6820052 |
|---|---|
| NAME | Laurent Li |
| GIVEN NAMES | Laurent |
| FAMILY NAME | Li |
| SIGNATURE | LI L |
| AFFILIATIONS | Laboratoire de Météorologie Dynamique |
| ORCID | 0000-0002-3855-3976 |
| VERIFIED | Yes |
| TOTAL WORKS | 12 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 12 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2008 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 0 |
Climats régionaux et régionalisation du climat
Une très grande variété de climats existe sur la Terre et des méthodes dédiées sont nécessaires pour comprendre leur variabilité et évolution dans un contexte de réchauffement climatique global. Au LMD, sont développées des approches numériques pour étudier les climats régionaux. Il s’agit historiquement du modèle global zoomé LMDZ et plus récemment du modèle régional du système Terre Reg-IPSL. Ces modèles ont permis l’étude de climats de nombreu…
Météo, climat et transition énergétique
Actuellement, la production d’énergie représente environ 35 % des émissions de gaz à effet de serre. Respecter l’accord de Paris nécessite d’avoir d’ici 2100, 90 % d’énergies décarbonées dans la consommation d’énergie primaire. Pour atteindre ces objectifs ambitieux, il est impératif d’électrifier certains usages tels que le chauffage et la mobilité. Cela implique une transformation rapide de la production énergétique actuelle, majoritairement ba…
Propagation of climate extremes across global value chains
This paper presents a theoretical frame relying on the graph theory for assessing extreme weather events relative damage to global value chains. The approach is defined in three steps: the first part of the paper presents the intuition inspiring the defined model and associated theory , the second part is focused on a scenario analysis declining extreme events relative severity by countries, the third part leverages on the graph theory to transla…
Earth greening mitigates hot temperature extremes despite the effect being dampened by rising CO2
Increases in China’s wind energy production from the recovery of wind speed since 2012
China has realized a 56-fold increase in installed wind capacity, from 5.9 GW in 2007 to 328 GW in 2021. In addition to increasing installed capacity, plans to substantially increase wind energy production for climate change mitigation also depend on future wind speeds, which strongly influences the efficiencies of installed turbines within individual wind farms. A reversal in globally decreasing wind speeds over several decades has been reported…
Machine learning to optimize climate projection over China with multi-model ensemble simulations
The multi-model ensemble approach is generally considered as the best way to explore the advantage and to avoid the weakness of each individual model, and ultimately to achieve the best climate projection. But the design of an optimal strategy and its practical implementation still constitutes a challenge. Here we use the random forest (RF) algorithm (from the category of machine learning) to explore the information offered by the multi-model ens…
Salient difference of sea surface temperature over the North Atlantic in the spring following three super El Niño events
Despite similar evolution of Niño3.4 index for three strong El Niño events in the tropical Pacific in 1982–1983, 1997–1998 and 2015–2016, divergent sea surface temperature anomalies (SSTAs) were observed in the North Atlantic (NA) in spring following El Niño peak. Strong teleconnection occurred for the first two events in 1982–1983 and 1997–1998, leading to a negative phase of a North Atlantic Oscillation-like circulation over the extratropical N…
Emergent constraint on crop yield response to warmer temperature from field experiments
Responses of global crop yields to warmer temperatures are fundamental to sustainable development under climate change but remain uncertain. Here, we combined a global dataset of field warming experiments (48 sites) for wheat, maize, rice and soybean with gridded global crop models to produce field-data-constrained estimates on responses of crop yield to changes in temperature (ST) with the emergent-constraint approach. Our constrained estimates …
Global terrestrial stilling
Previous studies have documented that surface wind speed (u) has been increasing over the ocean but decreasing over land for the past several decades. The decreasing u at the surface over land has been referred to as terrestrial stilling. A plausible hypothesis for terrestrial stilling is an increase in surface roughness associated with changes in land surface (e.g. enhanced vegetation growth, landscape fragmentation or urbanization). One of the …
Responses of land evapotranspiration to Earth’s greening in CMIP5 Earth System Models
Climate change projections using the IPSL-CM5 Earth System Model
We present the global general circulation model IPSL-CM5 developed to study the long-term response of the climate system to natural and anthropogenic forcings as part of the 5th Phase of the Coupled Model Intercomparison Project (CMIP5). This model includes an interactive carbon cycle, a representation of tropospheric and stratospheric chemistry, and a comprehensive representation of aerosols. As it represents the principal dynamical, physical, a…
Mediterranean water cycle changes
We use CMIP3 multi-model simulations to show how individual hydroclimatic changes will concur to determine even greater alterations of 21st century Mediterranean water cycle characteristics, with contrasting behavior over land and sea. By 2070-2099, the average of the models predicts a 20% decrease in land surface water availability and a 24% increase in the loss of fresh water over the Mediterranean Sea due to precipitation reduction and warming…
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Mediterranean water cycle changes
We use CMIP3 multi-model simulations to show how individual hydroclimatic changes will concur to determine even greater alterations of 21st century Mediterranean water cycle characteristics, with contrasting behavior over land and sea. By 2070-2099, the average of the models predicts a 20% decrease in land surface water availability and a 24% increase in the loss of fresh water over the Mediterranean Sea due to precipitation reduction and warming…
Climate change projections using the IPSL-CM5 Earth System Model
We present the global general circulation model IPSL-CM5 developed to study the long-term response of the climate system to natural and anthropogenic forcings as part of the 5th Phase of the Coupled Model Intercomparison Project (CMIP5). This model includes an interactive carbon cycle, a representation of tropospheric and stratospheric chemistry, and a comprehensive representation of aerosols. As it represents the principal dynamical, physical, a…
Responses of land evapotranspiration to Earth’s greening in CMIP5 Earth System Models
Global terrestrial stilling
Previous studies have documented that surface wind speed (u) has been increasing over the ocean but decreasing over land for the past several decades. The decreasing u at the surface over land has been referred to as terrestrial stilling. A plausible hypothesis for terrestrial stilling is an increase in surface roughness associated with changes in land surface (e.g. enhanced vegetation growth, landscape fragmentation or urbanization). One of the …
Salient difference of sea surface temperature over the North Atlantic in the spring following three super El Niño events
Despite similar evolution of Niño3.4 index for three strong El Niño events in the tropical Pacific in 1982–1983, 1997–1998 and 2015–2016, divergent sea surface temperature anomalies (SSTAs) were observed in the North Atlantic (NA) in spring following El Niño peak. Strong teleconnection occurred for the first two events in 1982–1983 and 1997–1998, leading to a negative phase of a North Atlantic Oscillation-like circulation over the extratropical N…
Emergent constraint on crop yield response to warmer temperature from field experiments
Responses of global crop yields to warmer temperatures are fundamental to sustainable development under climate change but remain uncertain. Here, we combined a global dataset of field warming experiments (48 sites) for wheat, maize, rice and soybean with gridded global crop models to produce field-data-constrained estimates on responses of crop yield to changes in temperature (ST) with the emergent-constraint approach. Our constrained estimates …
Machine learning to optimize climate projection over China with multi-model ensemble simulations
The multi-model ensemble approach is generally considered as the best way to explore the advantage and to avoid the weakness of each individual model, and ultimately to achieve the best climate projection. But the design of an optimal strategy and its practical implementation still constitutes a challenge. Here we use the random forest (RF) algorithm (from the category of machine learning) to explore the information offered by the multi-model ens…
Increases in China’s wind energy production from the recovery of wind speed since 2012
China has realized a 56-fold increase in installed wind capacity, from 5.9 GW in 2007 to 328 GW in 2021. In addition to increasing installed capacity, plans to substantially increase wind energy production for climate change mitigation also depend on future wind speeds, which strongly influences the efficiencies of installed turbines within individual wind farms. A reversal in globally decreasing wind speeds over several decades has been reported…
Earth greening mitigates hot temperature extremes despite the effect being dampened by rising CO2
Climats régionaux et régionalisation du climat
Une très grande variété de climats existe sur la Terre et des méthodes dédiées sont nécessaires pour comprendre leur variabilité et évolution dans un contexte de réchauffement climatique global. Au LMD, sont développées des approches numériques pour étudier les climats régionaux. Il s’agit historiquement du modèle global zoomé LMDZ et plus récemment du modèle régional du système Terre Reg-IPSL. Ces modèles ont permis l’étude de climats de nombreu…
Météo, climat et transition énergétique
Actuellement, la production d’énergie représente environ 35 % des émissions de gaz à effet de serre. Respecter l’accord de Paris nécessite d’avoir d’ici 2100, 90 % d’énergies décarbonées dans la consommation d’énergie primaire. Pour atteindre ces objectifs ambitieux, il est impératif d’électrifier certains usages tels que le chauffage et la mobilité. Cela implique une transformation rapide de la production énergétique actuelle, majoritairement ba…
Propagation of climate extremes across global value chains
This paper presents a theoretical frame relying on the graph theory for assessing extreme weather events relative damage to global value chains. The approach is defined in three steps: the first part of the paper presents the intuition inspiring the defined model and associated theory , the second part is focused on a scenario analysis declining extreme events relative severity by countries, the third part leverages on the graph theory to transla…
Climate variability and models (9 works) · Environmental Science (9 works) · Climatology (8 works) · Geology (8 works) · Climate change (7 works) · Atmospheric sciences (6 works) · Geography (6 works) · Climate model (5 works) · Ecology (4 works) · Coupled model intercomparison project (3 works)