Article
Meteorology & Atmospheric Sciences
Xiaoming Sun, Guiling Wang
Summary: Negative scaling, a decrease of extreme precipitation at high temperature, is primarily caused by the impact of high temperature-induced saturation deficit on precipitation over land and storm-induced temperature variations over the ocean. A large saturation deficit reduces precipitation intensity by slowing down the convective updraft condensation rate and accelerating condensate evaporation. This mechanism can contribute to increased compound drought and heat events.
JOURNAL OF CLIMATE
(2022)
Article
Environmental Sciences
Andrew M. Linke, Andreas Foro Tollefsen
Summary: The study shows that weather variability in Africa significantly affects agricultural landownership rates, with drier than average growing seasons leading to a decline in landownership rates. This could exacerbate existing development challenges on the continent.
GLOBAL ENVIRONMENTAL CHANGE-HUMAN AND POLICY DIMENSIONS
(2021)
Article
Environmental Sciences
Vasileios Tzallas, Anja Huenerbein, Martin Stengel, Jan Fokke Meirink, Nikos Benas, Joerg Trentmann, Andreas Macke
Summary: This study aims to create a cloud regime dataset over Europe based on the CLAAS-2.1 climate data record, in order to analyze their variability and changes at different spatio-temporal scales. The co-occurrences between cloud regimes and large-scale weather patterns are investigated, providing a detailed description of the climate of cloud properties over Europe. The study also examines the annual and diurnal variabilities of the cloud regimes and trends in their frequency of occurrence.
Article
Geosciences, Multidisciplinary
Zhengtai Zhang, Kaicun Wang
Summary: This study investigated the variability of surface wind speed in China under different weather regimes, highlighting the significant impacts of the Siberian high pressure and Aleutian low pressure on the wind speed, especially at decadal scales. However, these weather regimes cannot fully explain the decreasing trend of surface wind speed observed in China from 1980 to 2017.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Yang He, Xiaoqian Zhu, Zheng Sheng, Mingyuan He
Summary: Extreme events have increased in frequency in the mid-latitudes of the Northern Hemisphere in recent decades, resulting in significant impacts on the ecosystem and society. The amplification of planetary waves through quasi-resonance is believed to be a dynamic mechanism leading to extreme weather. However, the specific impact of resonant waves on surface heat extremes caused by quasi-resonance is still not well understood.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Meteorology & Atmospheric Sciences
Sarah Wilson Kemsley, Timothy J. Osborn, Stephen R. Dorling, Craig Wallace
Summary: By combining a stochastic precipitation generator with pattern scaling, the limitations of climate models can be overcome to study future climate and the risk of extreme weather events.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2023)
Article
Environmental Sciences
Yongqiang Zhang, Alberto Viglione, Gunter Bloeschl
Summary: This study analyzes streamflow records from 7,053 catchments worldwide from 1950 to 2016 and finds a significant scaling relationship between streamflow elasticity to precipitation and aggregation time. Catchments that are more arid, have less rainfall, are less forested, and have a larger base flow contribution are more likely to exhibit positive scaling. It is suggested to use decadal elasticities instead of annual elasticities in climate impact analyses to account for their scaling behavior.
WATER RESOURCES RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Xiaodong Chen, L. Ruby Leung, Ning Sun
Summary: This study introduces a new method called Weather Anomaly Clustering (WAC-hydro) for predicting both precipitation and temperature, which helps link large-scale climate conditions to regional hydroclimate conditions. By identifying 12 clusters of daily weather anomaly modes in the US Pacific Northwest Puget Sound region, this method provides insights into the flood mechanisms and their connections to climate variability modes.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Assaf Hochman, Gabriele Messori, Julian F. Quinting, Joaquim G. Pinto, Christian M. Grams
Summary: Research shows that most Atlantic-European winter weather regimes display distinct and predictable flow characteristics at their maximum stage, providing strong evidence for their physical foundation.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Multidisciplinary Sciences
Bijan Fallah, Emmanuele Russo, Christoph Menz, Peter Hoffmann, Iulii Didovets, Fred F. Hattermann
Summary: We investigate the contribution of anthropogenic forcing to extreme temperature and precipitation events in Central Asia. Our analysis shows a higher risk of extreme heat events and precipitation events in the region, particularly in Kyrgyzstan and Tajikistan.
SCIENTIFIC REPORTS
(2023)
Article
Agronomy
Simon Reynaert, Arthur Vienne, Hans J. De Boeck, Tommy D'Hose, Ivan Janssens, Ivan Nijs, Miguel Portillo-Estrada, Erik Verbruggen, Sara Vicca
Summary: Global warming is changing the variability of precipitation patterns in the mid-latitudes, leading to longer dry and wet spells. This fluctuation can negatively affect the soil water and nutrient dynamics of managed ecosystems, impacting their functioning. This study found that the addition of basalt can mitigate the effects of persistent precipitation regimes on agricultural grassland, improving productivity and soil nutrient availability without compromising fodder quality.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Meteorology & Atmospheric Sciences
Corey E. Clay, Lukas J. McGuire, Alex J. Nixon, Anthony R. Lupo
Summary: Previous studies have shown that increased soil moisture can affect atmospheric boundary layer (ABL) water vapor, resulting in a higher surface buoyancy and more severe weather. This research aims to demonstrate the correlation between soil moisture and tornado, hail, and severe wind activity in Missouri from 1980-2018. Data from the Storm Prediction Center in Norman, OK was used to analyze the relationship between April-June soil moisture anomalies and severe weather occurrence. Pearson correlation coefficient and Poisson regression were used for significance testing. Results showed a significant positive relationship between April-June soil moisture and tornado and severe wind activity.
THEORETICAL AND APPLIED CLIMATOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Nasser Najibi, Sudarshana Mukhopadhyay, Scott Steinschneider
Summary: A novel hierarchical Bayesian quantile regression model is proposed to estimate the relationship between precipitation and temperature in different seasons, weather regimes, and precipitation percentiles. The study finds that the scaling rates of regional precipitation vary depending on the season and percentile, while the variations across different weather regimes are modest.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Meteorology & Atmospheric Sciences
Cameron C. Lee
Summary: This study examines the trends in short-term temperature ranges globally, showing significant increases in 7- and 1-day ranges over a 70-year period, particularly in oceanic regions. Changes are largely driven by shifts in wind speeds and cloud cover, highlighting the inverse relationship between temperature variability over land and cloud cover.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
Soo-Hyun Seok, Kyong-Hwan Seo
Summary: Recent studies show that the position of the Tibetan Plateau plays a crucial role in determining the precipitation of the East Asian summer monsoon. The strength of monsoon aspects is entirely determined by the location of the plateau, with north-south displacement affecting precipitation intensity significantly.
JOURNAL OF CLIMATE
(2021)
Article
Computer Science, Artificial Intelligence
Claude M. J. Braun, Shaun Lovejoy
Article
Geosciences, Multidisciplinary
Raphael Hebert, Shaun Lovejoy
GEOPHYSICAL RESEARCH LETTERS
(2018)
Article
Astronomy & Astrophysics
Francois Landais, Frederic Schmidt, Shaun Lovejoy
Article
Astronomy & Astrophysics
F. Landais, F. Schmidt, S. Lovejoy
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2019)
Article
Meteorology & Atmospheric Sciences
Lenin Del Rio Amador, Shaun Lovejoy
Article
Meteorology & Atmospheric Sciences
Shaun Lovejoy, Roman Procyk, Raphael Hebert, Lenin Del Rio Amador
Summary: The Fractional Energy Balance Equation introduces complex climate sensitivities and describes the process of temperature relaxation to equilibrium when the Earth is perturbed, with stability and finite climate sensitivity. Solving the FEBE using Green's functions results in solutions with power law limits in high and low frequencies.
QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY
(2021)
Article
Geosciences, Multidisciplinary
L. Del Rio Amador, S. Lovejoy
Summary: Granger causality analysis demonstrates that spatial correlations in temperature are not useful for improving predictions based on long memory, indicating that long-term stochastic temperature forecasting is a past value problem. The m-StocSIPS model, despite reproducing teleconnection patterns and El Nino events, does not have causal relationships between different locations useful for long-range predictions. Real-world statistics and teleconnection patterns can be accurately represented through stochastic simulations without causal relationships.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Multidisciplinary Sciences
Andrej Spiridonov, Shaun Lovejoy
Summary: This article analyzes the various factors controlling biological diversity on Earth, revealing the patterns of change in the biosphere over long time scales, which is important for understanding the process of biological evolution.
Review
Geosciences, Multidisciplinary
Shaun Lovejoy
Summary: This article reviews the development of scaling theory in the past few decades, focusing on multifractals and generalized scale invariance. Scaling theory is considered to be an important theoretical basis in atmospheric science, which can be used to describe and simulate the characteristics and changes of weather and climate. The article also discusses the applications and limitations of scaling theory in atmospheric science, and highlights the necessity of developing new meteorological and climatic models based on generalized scaling theory.
NONLINEAR PROCESSES IN GEOPHYSICS
(2023)
Article
Geosciences, Multidisciplinary
Shaun Lovejoy
Summary: This article discusses the statistical properties of the stochastic fractional relaxation equation and its extensions that model the Earth's energy balance. The authors analyze the stationary solutions and develop power series expansions for modeling energy storage processes. They analyze autocorrelation functions, Haar fluctuations, and spectra, and provide sample realizations. Finally, the predictability of these processes and their implications for temperature forecasts are discussed.
NONLINEAR PROCESSES IN GEOPHYSICS
(2022)
Article
Geosciences, Multidisciplinary
Roman Procyk, Shaun Lovejoy, Raphael Hebert
Summary: This study uses the fractional energy balance equation (FEBE) to project future climate and estimate model parameters. The results show that the FEBE predictions are consistent with IPCC AR5 and CMIP6 MME, but slightly lower in value. The climate projections using FEBE parameters are slightly lower but have smaller uncertainties compared to CMIP5 and CMIP6 multi-model ensembles.
EARTH SYSTEM DYNAMICS
(2022)
Article
Geosciences, Multidisciplinary
Shaun Lovejoy
Summary: This study focuses on advancements in energy balance models, addressing issues with radiative-conductive surface boundary conditions and introducing the half-ordered energy balance equation. Research on periodically forced Earth systems is conducted, explaining the phase lag between summer maximum forcing and maximum surface temperature response using a semi-empirical model.
EARTH SYSTEM DYNAMICS
(2021)
Article
Geosciences, Multidisciplinary
Shaun Lovejoy
Summary: This study explores the half-ordered relationships between surface heat fluxes and temperatures, as well as the heterogeneity of the Earth in time and space. By analyzing the energy balance equations under homogeneous and inhomogeneous conditions, new models for meteorological forecasting and climate change research are proposed.
EARTH SYSTEM DYNAMICS
(2021)
Article
Geosciences, Multidisciplinary
Shaun Lovejoy, Fabrice Lambert
CLIMATE OF THE PAST
(2019)
Article
Water Resources
Isabel Pedroso de Lima, Shaun Lovejoy
RIBAGUA-REVISTA IBEROAMERICANA DEL AGUA
(2019)