Article
Meteorology & Atmospheric Sciences
K. Sakaguchi, L. K. Berg, J. Chen, J. Fast, R. Newsom, S. L. Tai, Z. Yang, W. I. Gustafson, B. J. Gaudet, M. Huang, M. Pekour, K. Pressel, H. Xiao
Summary: The study focuses on quantifying spatial scales of land-atmosphere interactions over heterogeneous soil moisture patterns, using high-resolution numerical experiments. The simulations compare different scenarios of land cover and soil moisture, showing variations in surface sensible heat flux at different scales and secondary circulations induced by land cover variations. The results highlight the importance of considering non-linear effects of soil moisture variability in large-scale models, despite their small areal coverage.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2022)
Article
Meteorology & Atmospheric Sciences
Qinqin Kong, Matthew Huber
Summary: The study reveals the coupling relationship between soil moisture and heat stress and finds that wetter soil could potentially amplify heat stress. This is significant in improving the prediction of extreme heat stress events and informing strategies for mitigation.
JOURNAL OF CLIMATE
(2023)
Article
Environmental Sciences
Jianzhi Dong, Ruzbeh Akbar, Andrew F. Feldman, Daniel Short Gianotti, Dara Entekhabi
Summary: The surface water and energy balances can either be coupled or uncoupled depending on the evaporation regime. The transition between regimes during drydowns indicates a nonlinear change in water-energy-carbon coupling. Regions that frequently switch between these regimes are vulnerable to climate variability and change. This study identifies the tipping points and evaporation regime transitions using global soil moisture data sets and observation-based water availability indices.
WATER RESOURCES RESEARCH
(2023)
Article
Meteorology & Atmospheric Sciences
Chul-Su Shin, Paul A. Dirmeyer, Bohua Huang
Summary: This study presents a joint approach combining correlation and NMI to examine land and ocean surface forcing of U.S. drought at varying lead times. The proposed method can discriminate linear and nonlinear relationships more intuitively and identify non-linear relationships, particularly in cases where there are clusters and blank areas in the joint probability distributions between source and target variables. Therefore, this joint approach is a potentially powerful tool to reveal complex and heretofore undetected relationships.
JOURNAL OF CLIMATE
(2023)
Article
Meteorology & Atmospheric Sciences
Yajing Qi, Haishan Chen, Siguang Zhu
Summary: Land-atmosphere coupling has a significant impact on low temperature extremes during fall and winter over southern Eurasia. It explains around 70% of temperature variability, increases near-surface air temperature, and reduces the frequency of LTEs. The coupling also alters atmospheric circulation, affecting the frequency and intensity of LTEs.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Environmental Sciences
Jianhong Zhou, Kun Yang, Jianzhi Dong, Long Zhao, Huihui Feng, Mijun Zou, Hui Lu, Ronglin Tang, Yaozhi Jiang, Wade T. Crow
Summary: Imperfect land physics in land surface models (LSMs) introduce uncertainty and bias in the representation of land-atmosphere coupling (rho), which degrades the accuracy of lower atmosphere forecasts. This study investigates the potential of two remote sensing (RS)-based references for addressing LSM rho bias. Results show that calibrating LSM using ET-represented rho reference data outperforms using dT-represented rho reference data in ET and dT modeling, due to confounding impacts and uncertainties. Both ET and dT-represented rho references have the potential for diagnosing and understanding LSM rho bias.
REMOTE SENSING OF ENVIRONMENT
(2023)
Article
Meteorology & Atmospheric Sciences
Hsin Hsu, Paul A. Dirmeyer
Summary: This study examines the impact of soil moisture on latent heat flux using segmented regression and mutual information analysis. It identifies dry, transitional, and wet regimes and reveals both linear and nonlinear relationships between soil moisture and latent heat flux. The results show general consistencies in the global patterns of soil moisture-latent heat flux coupling, suggesting that only the transitional soil moisture regime determines the strength of coupling.
JOURNAL OF HYDROMETEOROLOGY
(2022)
Article
Remote Sensing
Qing Tian, Jianzhong Lu, Xiaoling Chen
Summary: Understanding the feedback and reactions of soil moisture to meteorological factors is important in meteorological-hydrological processes. This study found two patterns of land-atmosphere interaction, as well as the influence of regional climate on the lag times. The results showed that soil moisture has both long-term and short-term responses to meteorological variables, with positive correlation with precipitation but negative correlation with temperature and evapotranspiration. The contribution rates of meteorological elements on soil moisture were enhanced by considering the lag time.
GEO-SPATIAL INFORMATION SCIENCE
(2023)
Article
Environmental Sciences
Zesu Yang, Qiang Zhang, Yu Zhang, Ping Yue, Liang Zhang, Jian Zeng, Yulei Qi
Summary: As a land-atmosphere coupling hot spot, the northern China climate transition zone exhibits significant spatial and temporal variations in land-atmosphere coupling strength, which are influenced by soil moisture and air temperature.
Article
Meteorology & Atmospheric Sciences
Enda Zhu, Xing Yuan
Summary: Freshwater storage capability in river basins is influenced by various factors, with the root zone contributing significantly to global land FSC. Long-term simulations indicate that changes in FSC in most basins are linked to internal climate variability, highlighting the importance of understanding the proportion of precipitation retained on land for water resource predictability.
ADVANCES IN ATMOSPHERIC SCIENCES
(2021)
Article
Computer Science, Interdisciplinary Applications
Ryan Murphy, Chikwesiri Imediegwu, Robert Hewson, Matthew Santer
Summary: The study presents a robust three-dimensional multiscale structural optimization framework with concurrent coupling between scales, reducing computational expenses and enabling storage of microscale data for support of a greater number of design variables. Additionally, the framework allows for the derivation of structures with functionally graded mechanical properties satisfying various functional objectives.
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2021)
Article
Meteorology & Atmospheric Sciences
Eric Rappin, Rezaul Mahmood, Udaysankar Nair, Roger A. Pielke, William Brown, Steve Oncley, Joshua Wurman, Karen Kosiba, Aaron Kaulfus, Chris Phillips, Emilee Lachenmeier, Joseph Santanello, Edward Kim, Patricia Lawston-Parker
Summary: The passage discusses the impacts of irrigated agriculture on temperature and precipitation in the central United States, as well as the Great Plains Irrigation Experiment conducted in southeastern Nebraska. The experiment showed a clear irrigation signal during the peak growing season, affecting surface fluxes, temperature, humidity, and boundary layer dynamics.
BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
(2021)
Article
Meteorology & Atmospheric Sciences
Bin Zheng, Dejun Gu, Ailan Lin, Dongdong Peng, Chunhui Li, Yanyan Huang
Summary: This study investigates the structures and mechanisms of heatwaves associated with quasi-biweekly variability over southern China. It reveals that anticyclonic anomalies and subsidence lead to excess solar radiation and heating, favoring the occurrence of heatwaves. The study also highlights the importance of moist soil and near-surface moisture in the occurrence of heatwaves.
JOURNAL OF CLIMATE
(2022)
Article
Meteorology & Atmospheric Sciences
Yao Feng, Hong Wang, Wenbin Liu, Fubao Sun
Summary: Soil moisture has a significant impact on plant transpiration and photosynthesis, as well as on the land energy and water balance. This study examines global soil moisture-climate interactions during the peak growing season from 1982 to 2015. The results show positive interactions between soil moisture and precipitation, evapotranspiration, and negative interactions with temperature. The compounded effect of climate factors strengthens the soil moisture-climate interactions. Precipitation, evapotranspiration, and temperature are the main drivers of soil moisture variations in different regions. The study emphasizes the importance of considering climate factors and their interactions in understanding soil moisture dynamics and its response to climate extremes.
JOURNAL OF CLIMATE
(2023)
Article
Meteorology & Atmospheric Sciences
Jared T. T. Trok, Frances V. V. Davenport, Elizabeth A. A. Barnes, Noah S. S. Diffenbaugh
Summary: Soil moisture affects near-surface air temperature by dividing downwelling radiation into latent and sensible heat fluxes, resulting in higher temperatures with drier soils. This study proposes a nonlinear machine learning method to analyze the coupling between soil moisture and temperature in various mid-latitude regions. The method uses convolutional neural networks to predict daily maximum temperature based on soil moisture and geopotential height fields, and partial dependence analysis to determine the sensitivity of temperature prediction to soil moisture input under different atmospheric conditions. The results show nonlinear relationships between temperature prediction and soil moisture, which vary regionally. The study also explores the influence of soil moisture memory on the coupling, with consistent results with previous studies.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2023)
Article
Meteorology & Atmospheric Sciences
Caglar Kucuk, Sujan Koirala, Nuno Carvalhais, Diego G. Miralles, Markus Reichstein, Martin Jung
Summary: Hydrological interactions between vegetation, soil, and topography in semi-arid landscapes are complex and heterogeneous. This study utilizes daily satellite data to analyze spatial patterns of vegetation-water interactions. The findings suggest that the proposed metrics are meaningful for large-scale ecohydrological studies by showing correlations with soil moisture and topographic, soil, and vegetation factors.
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
(2022)
Article
Multidisciplinary Sciences
Hendrik Wouters, Jessica Keune, Irina Y. Petrova, Chiel C. van Heerwaarden, Adriaan J. Teuling, Jeremy S. Pal, Jordi Vila-Guerau de Arellano, Diego G. Miralles
Summary: Global warming has led to an increase in the number and severity of deadly heatwaves. Recent heatwaves have been accompanied by soil droughts that intensify air temperature but decrease air humidity. Despite the increase in temperature, soil droughts actually result in a mild reduction in the lethality of heatwaves.
Article
Cardiac & Cardiovascular Systems
Yasbanoo Moayedi, Eduard Rodenas-Alesina, Brigitte Mueller, Chun-Po S. Fan, Wida S. Cherikh, Josef Stehlik, Jeffrey J. Teuteberg, Heather J. Ross, Kiran K. Khush
Summary: European heart transplantation centers are more likely to accept higher-risk donor hearts than North American centers. The acceptance of higher-risk donor hearts is associated with higher survival rates in European centers.
CIRCULATION-HEART FAILURE
(2023)
Review
Geochemistry & Geophysics
D. Barriopedro, R. Garcia-Herrera, C. Ordonez, D. G. Miralles, S. Salcedo-Sanz
Summary: Heat waves have significant socioeconomic and environmental impacts, and their frequency, intensity, and duration are projected to increase with global warming. While some thermodynamic processes have been identified, there is still a lack of understanding regarding dynamical aspects, regional forcings, and feedbacks, as well as their future changes.
REVIEWS OF GEOPHYSICS
(2023)
Article
Environmental Sciences
A. Barbeta, D. G. Miralles, L. Mendiola, T. E. Gimeno, S. Sabate, J. Carnicer
Summary: The thermal balance of forests is influenced by land-atmosphere interactions, climate regimes, and plant functional types. However, the influence of forest structure and functional traits on thermal balance is not well understood.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2023)
Article
Environmental Sciences
Paulo Bittencourt, Lucy Rowland, Stephen Sitch, Rafael Poyatos, Diego G. G. Miralles, Maurizio Mencuccini
Summary: Tree-level sap flow data can be used to evaluate the quality of global transpiration products and identify issues and assumptions in models. By comparing it with global transpiration products, inconsistencies under extreme climatic conditions can be detected, providing the basis for model improvement.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2023)
Article
Meteorology & Atmospheric Sciences
Hao Li, Jessica Keune, Femke Smessaert, Raquel Nieto, Luis Gimeno, Diego G. Miralles
Summary: Global crop yields are highly influenced by climate variability, with severe droughts and heatwaves leading to major agricultural failures. While the impact of local land-atmosphere feedbacks on agricultural productivity has been studied, the dependency of crop yields on upwind regions remains understudied. Research shows that crop failure increases by around 40% when both local and upwind land-atmosphere feedbacks cause anomalously low moisture and high heat transport into agricultural regions. Understanding the upwind-downwind dependencies in agricultural regions can help develop adaptation strategies to prevent food shortage in a changing climate.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
Bram Valkenborg, Gabrielle J. M. De Lannoy, Alexander Gruber, Diego G. Miralles, Philipp Koehler, Christian Frankenberg, Ankur R. Desai, Elyn Humphreys, Janina Klatt, Annalea Lohila, Mats B. Nilsson, Eeva-Stiina Tuittila, Michel Bechtold
Summary: This study investigates water-related vegetation stress in northern peatlands using satellite-observed Solar-Induced chlorophyll Fluorescence (SIF). The results show that most locations experience both drought and waterlogging stress, while some regions only experience waterlogging or drought stress. The study finds that the minimal water-related vegetation stress occurs at a water table depth of -0.22 m (short-term) and -0.20 m (long-term).
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
P. Hulsman, J. Keune, A. Koppa, J. Schellekens, D. G. Miralles
Summary: This study proposes a new approach to incorporate plant access to groundwater in global evaporation models and analyzes the contribution of groundwater to evaporation globally. The proposed approach improves the representation of evaporation under water-limited conditions and has the potential to assimilate satellite gravimetry data in the future.
WATER RESOURCES RESEARCH
(2023)
Article
Multidisciplinary Sciences
Wantong Li, Javier Pacheco-Labrador, Mirco Migliavacca, Diego Miralles, Anne Hoek van Dijke, Markus Reichstein, Matthias Forkel, Weijie Zhang, Christian Frankenberg, Annu Panwar, Qian Zhang, Ulrich Weber, Pierre Gentine, Rene Orth
Summary: This study investigates the physiological responses of global vegetation to drought using remote sensing data, machine learning, and model simulations. The findings show that the decrease in vegetation functionality is mainly driven by the downregulation of physiological processes, such as stomatal conductance and light use efficiency, with the most significant downregulation in water-limited regions. The study also highlights the role of abnormal hydro-meteorological conditions and vegetation types in modulating physiological drought responses.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Yuquan Qu, Diego G. Miralles, Sander Veraverbeke, Harry Vereecken, Carsten Montzka
Summary: In many parts of the world, conditions for wildfires are increasing. This study examines the impact of weather and fuel conditions on wildfires and finds that weather plays a larger role than fuel, especially in tropical rainforests, mid-latitudes, and Siberian boreal forests. Fuel conditions are more dominant in North American and European boreal forests, as well as African and Australian savannahs. The study also highlights the complementary predictability of weather and fuel conditions for wildfire forecasting, with seasonal or interannual predictions feasible in areas where fuel conditions dominate.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Hylke E. Beck, Tim R. Mcvicar, Noemi Vergopolan, Alexis Berg, Nicholas J. Lutsko, Ambroise Dufour, Zhenzhong Zeng, Xin Jiang, Albert I. J. M. van Dijk, Diego G. Miralles
Summary: This study introduces Version 2 of the widely used 1-km Koppen-Geiger climate classification maps, which include historical and future climate conditions. The maps are based on high-resolution observation data and climate projections. The results show that approximately 5% of the global land surface has transitioned to a different major climate class in the past, and this proportion is projected to increase in the future under different emissions scenarios.
Review
Environmental Sciences
Yuting Yang, Michael L. Roderick, Hui Guo, Diego G. Miralles, Lu Zhang, Simone Fatichi, Xiangzhong Luo, Yongqiang Zhang, Tim R. McVicar, Zhuoyi Tu, Trevor F. Keenan, Joshua B. Fisher, Rong Gan, Xuanze Zhang, Shilong Piao, Baoqing Zhang, Dawen Yang
Summary: Evapotranspiration (ET), which is regulated by vegetation, plays a central role in water, energy, and carbon cycles. There has been a global increase in ET since the 1980s, primarily driven by vegetation greening. The impacts of specific drivers on ET, such as CO2 fertilization and land use change, are uncertain at a global scale but have regional effects. Improving model validation, understanding key processes, and data-model fusion techniques are essential for better understanding ET characteristics.
NATURE REVIEWS EARTH & ENVIRONMENT
(2023)
Article
Multidisciplinary Sciences
A. J. Baxter, D. Verschuren, F. Peterse, D. G. Miralles, C. M. Martin-Jones, A. Maitituerdi, T. van der Meeren, M. Van Daele, C. S. Lane, G. H. Haug, D. O. Olago, J. S. Sinninghe Damste
Summary: By studying organic geochemical climate-proxy data from the sediment record of Lake Chala in Kenya and Tanzania, it was found that the positive relationship between effective moisture and temperature in easternmost Africa has shifted to negative in the past 75,000 years. This implies that under continued anthropogenic warming, the Horn of Africa will probably experience further drying.
Article
Meteorology & Atmospheric Sciences
J. L. Geirinhas, A. C. Russo, R. Libonati, D. G. Miralles, A. M. Ramos, L. Gimeno, R. M. Trigo
Summary: Changes in the global water cycle have led to changes in the frequency and intensity of dry spells, resulting in a period of severe soil drought in central-east South America from 2019 to 2022. This extreme drought was driven by internal variability and tropical/subtropical forcing, highlighting the importance of representing dynamic processes in climate models.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2023)