Article
Environmental Sciences
Zhi Li, Hao Wang, Tao Zhang, Qiangyu Zeng, Jie Xiang, Zhihao Liu, Rong Yang
Summary: A satellite, reanalysis, and gauge data merging model using a random forest algorithm was developed for daily-scale analysis in Sichuan province. A high-precision daily precipitation merging dataset (MSMP) with a spatial resolution of 0.1° was successfully generated. The study found that the GPM-IMERG satellite observation data performed the best and improved dataset accuracy, especially in the plain regions, while the merging experiment had unstable effects in higher elevated areas.
Article
Geosciences, Multidisciplinary
Joel Fiddes, Kristoffer Aalstad, Michael Lehning
Summary: This study presents and evaluates a new downscaling scheme that utilizes synthetic observations and quantile mapping method to provide hillslope-scale atmospheric-forcing time series for modelling the local impact of regional climate change on land surface in complex terrain.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2022)
Article
Environmental Sciences
P. A. Mooney, H. Lee, S. Sobolowski
Summary: Afforestation is gaining popularity as a climate mitigation policy, but the impacts on local-to-regional climate in high latitudes like Norway are complex. Different forestry scenarios in Norway lead to additional warming in winter and spring, and cooling in summer. Current afforestation policies may partially mitigate the effects of global warming but also exacerbate some locally.
Article
Geochemistry & Geophysics
Qin Lang, Wei Zhao, Wenping Yu, Mingguo Ma, Yao Xiao, Yajun Huang, Lunche Wang
Summary: This study proposed an integrated method for estimating downward surface shortwave radiation (DSSR). The method initializes the estimation model with reanalysis data and iteratively refines the estimation. Validated against measurements and compared with other products, the proposed method shows good accuracy and potential.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2023)
Article
Geosciences, Multidisciplinary
Michael P. Erb, Nicholas P. McKay, Nathan Steiger, Sylvia Dee, Chris Hancock, Ruza F. Ivanovic, Lauren J. Gregoire, Paul Valdes
Summary: Paleoclimatic records provide valuable information about Holocene climate, but also have limitations such as uneven proxy networks and seasonal biases. Paleoclimatic data assimilation is an effective method to reconstruct past climate by considering the diversity of proxy records and the simulated covariance structures of climate models.
CLIMATE OF THE PAST
(2022)
Article
Geosciences, Multidisciplinary
Yann Quilcaille, Fulden Batibeniz, Andreia F. S. Ribeiro, Ryan S. Padron, Sonia I. Seneviratne
Summary: Human-induced climate change is increasing the incidence of fire events and associated impacts on livelihood, biodiversity, and nature across the world. Understanding current and projected fire activity together with its impacts on ecosystems is crucial for evaluating future risks and taking actions to prevent such devastating events.
EARTH SYSTEM SCIENCE DATA
(2023)
Article
Computer Science, Interdisciplinary Applications
Wenjie Liu, Huade Guan, Hugo A. Gutierrez-Jurado, Eddie W. Banks, Xinguang He, Xinping Zhang
Summary: A double-shading transposition model (DST) is proposed to simulate the temporal and spatial distribution of solar radiation. The model performs well in simulating above- and under-canopy radiation and has potential applications in ecohydrological modelling and catchment management in mountainous areas.
ENVIRONMENTAL MODELLING & SOFTWARE
(2022)
Article
Engineering, Aerospace
Cagri Hasan Karaman, Zuhal Akyurek
Summary: This study evaluates the performance of several reanalysis products in estimating daily and monthly air temperatures across the complex terrain of Turkey. Among the evaluated products, the AgERA5 product performs the best, especially in seasonal and annual estimations. The Random Forest algorithm also shows superior performance in certain seasons.
ADVANCES IN SPACE RESEARCH
(2023)
Article
Meteorology & Atmospheric Sciences
Tomeu Rigo, Oriol Rodriguez, Joan Bech, Carme Farnell
Summary: This article analyzes two long-lived supercell thunderstorms that formed in a complex topographic area in northern Catalonia on May 11, 2017. The study reveals a significant interaction between topography and storm cells, influencing their internal dynamics and the development of mesocyclones.
ATMOSPHERIC RESEARCH
(2022)
Review
Geochemistry & Geophysics
R. Baatz, H. J. Hendricks Franssen, E. Euskirchen, D. Sihi, M. Dietze, S. Ciavatta, K. Fennel, H. Beck, G. De Lannoy, V. R. N. Pauwels, A. Raiho, C. Montzka, M. Williams, U. Mishra, C. Poppe, S. Zacharias, A. Lausch, L. Samaniego, K. Van Looy, H. Bogena, M. Adamescu, M. Mirtl, A. Fox, K. Goergen, B. S. Naz, Y. Zeng, H. Vereecken
Summary: Reanalysis involves merging simulated model states and observational data through data assimilation. Recent developments have led to Earth system specific reanalysis products for the atmosphere, ocean, and land, with advanced uncertainty quantification and biogeochemical reanalysis included.
REVIEWS OF GEOPHYSICS
(2021)
Article
Environmental Sciences
Loubna Hamdi, Nabil Defaflia, Abdelaziz Merghadi, Chamssedine Fehdi, Ali P. Yunus, Jie Dou, Quoc Bao Pham, Hazem Ghassan Abdo, Hussein Almohamad, Motrih Al-Mutiry
Summary: This study uses GPS data and PS-InSAR techniques to monitor land subsidence in the Cheria basin in Algeria. The results show significant changes in land surface, with a maximum subsidence of 500 mm over 6 years. These findings can be used to identify vulnerable areas and evaluate surface deformation for potential damage reduction in the future.
Article
Multidisciplinary Sciences
Arnald Puy, Emanuele Borgonovo, Samuele Lo Piano, Simon A. Levin, Andrea Saltelli
Summary: This study shows that modeling irrigation water withdrawals as a function of irrigated areas can provide a simpler yet robust estimation of global freshwater demands in irrigated agriculture, while also allowing for exploration of model uncertainties.
NATURE COMMUNICATIONS
(2021)
Article
Environmental Sciences
Vasco Mantas, Claudia Caro
Summary: Land cover in mountainous regions is influenced by a complex range of stressors. This study presents the development of a land cover database for the Junin National Reserve in Peru using satellite data and in situ observations. The database was used to identify ecosystem services provided by different land cover classes.
Article
Geosciences, Multidisciplinary
S. Kratschmer, A. Cauquoin, G. Lohmann, M. Werner
Summary: Simulating the Last Glacial Maximum provides a rigorous test of climate models' ability. Comparing simulated land surface temperatures with reconstructed data, inconsistencies between the two suggest potential biases in proxy reconstructions and/or climate models' sensitivity.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Environmental Sciences
Piyush Jain, Dante Castellanos-Acuna, Sean C. P. Coogan, John T. Abatzoglou, Mike D. Flannigan
Summary: Recent increases in regional wildfire activity have been linked to climate change, driven predominantly by decreasing relative humidity and increasing temperature. Future fire risk may increase as climate change projections suggest global decreases in relative humidity and increases in temperature.
NATURE CLIMATE CHANGE
(2022)
Article
Computer Science, Interdisciplinary Applications
Young-Don Choi, Jonathan L. Goodall, Jeffrey M. Sadler, Anthony M. Castronova, Andrew Bennett, Zhiyu Li, Bart Nijssen, Shaowen Wang, Martyn P. Clark, Daniel P. Ames, Jeffery S. Horsburgh, Hong Yi, Christina Bandaragoda, Martin Seul, Richard Hooper, David G. Tarboton
Summary: To enable reproducible environmental modeling research, advanced cyberinfrastructure is needed. Recent efforts have focused on advancing online repositories for data and model sharing, online computational environments, and model APIs. Integrating these efforts can advance reproducible environmental modeling.
ENVIRONMENTAL MODELLING & SOFTWARE
(2021)
Article
Meteorology & Atmospheric Sciences
Naoki Mizukami, Martyn P. Clark, Shervan Gharari, Erik Kluzek, Ming Pan, Peirong Lin, Hylke E. Beck, Dai Yamazaki
Summary: A vector-river network utilizes realistic geometries to improve the accuracy of physical properties in river modeling, requiring efficient methods for streamflow routing. A new parallelization method effectively decomposes river networks for parallel routing computations, demonstrating excellent computational scaling globally but facing challenges in computing for a single large basin. Global routing experiments show that vector-river network scale has less impact on discharge simulations compared to runoff inputs generated by land surface models and meteorological forcing.
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
(2021)
Editorial Material
Environmental Sciences
Martyn P. Clark, Richard M. Vogel, Jonathan R. Lamontagne, Naoki Mizukami, Wouter J. M. Knoben, Guoqiang Tang, Shervan Gharari, Jim E. Freer, Paul H. Whitfield, Kevin R. Shook, Simon Michael Papalexiou
Summary: This commentary critically evaluates the use of popular performance metrics in hydrologic modeling, emphasizing the substantial sampling uncertainty in the NSE and KGE estimators. The importance of quantifying this uncertainty when selecting and comparing models is highlighted to improve the estimation, interpretation, and use of performance metrics in hydrologic modeling.
WATER RESOURCES RESEARCH
(2021)
Article
Meteorology & Atmospheric Sciences
I Vanderkelen, N. P. M. Lipzig, W. J. Sacks, D. M. Lawrence, M. P. Clark, N. Mizukami, Y. Pokhrel, W. Thiery
Summary: Reservoir expansion over the last century has had a significant impact on downstream flow characteristics, but little is known about its effects on the climate. A study implementing reservoir construction in the Community Land Model found that globally, reservoir expansion has limited influence on global temperatures and surface energy balance.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Environmental Sciences
Naoki Mizukami, Andrew J. Newman, Jeremy S. Littell, Thomas W. Giambelluca, Andrew W. Wood, Ethan D. Gutmann, Joseph J. Hamman, Diana R. Gergel, Bart Nijssen, Martyn P. Clark, Jeffrey R. Arnold
Summary: This study focuses on hydroclimate projections for Alaska and Hawaii in the United States using statistical downscaling and hydrologic model simulations. The results show runoff increases in Alaska due to warming and increased precipitation, while Hawaii exhibits high spatial variability of climate variables and a large spread of runoff across different models.
Article
Environmental Sciences
Octavio Murillo, Pablo A. Mendoza, Nicolas Vasquez, Naoki Mizukami, Alvaro Ayala
Summary: The implementation of elevation bands has implications for snowpack modeling, particularly in terms of precipitation distribution, snowmelt, sublimation, and snow water equivalent. These implications may vary with climate conditions and vertical discretization.
WATER RESOURCES RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Zhi Li, Shang Gao, Mengye Chen, Jonathan Gourley, Naoki Mizukami, Yang Hong
Summary: This study presents a hydrologic modeling framework, CREST-VEC, which combines a gridded water balance model and a newly developed vector-based routing scheme. The framework demonstrates significant improvements in computational efficiency and performance compared to conventional fully-gridded models, and incorporates a lake module for further enhanced accuracy. The proposed framework provides a solid basis for continental- and global-scale water modeling and allows for optimized streamflow predictions with quantified uncertainty information.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2022)
Article
Geosciences, Multidisciplinary
Ulises M. Sepulveda, Pablo A. Mendoza, Naoki Mizukami, Andrew J. Newman
Summary: This study investigates the sensitivities of 43 soil, vegetation and snow parameters in the VIC model for 101 catchments in continental Chile. It confirms overparameterization, with only 12 parameters found to be sensitive, and highlights the influence of climate variables, leaf area index, and snow parameters on parameter sensitivities. The results provide guidance on relevant parameters for model calibration based on target processes and prevailing climate types.
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2022)
Article
Geosciences, Multidisciplinary
Inne Vanderkelen, Shervan Gharari, Naoki Mizukami, Martyn P. Clark, David M. Lawrence, Sean Swenson, Yadu Pokhrel, Naota Hanasaki, Ann van Griensven, Wim Thiery
Summary: Human-controlled reservoirs have a significant impact on the global water cycle, but the accurate representation of reservoir regulation is lacking in Earth system models. This study evaluates the effectiveness of a widely used reservoir parametrization in a global river-routing model and highlights its clear added value in simulating storage for large reservoirs. However, for global applications, the performance of the reservoir parametrization is similar to representing reservoirs as natural lakes.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2022)
Article
Meteorology & Atmospheric Sciences
Ridwan Siddique, Alfonso Mejia, Naoki Mizukami, Richard N. Palmer
Summary: The study conducted a comprehensive impact analysis on watersheds in the northeastern region of the United States under different thresholds of global temperature increases, indicating that most watersheds will enter a wetter regime while late summer and fall conditions will become drier. Uncertainties are mainly present under lower thresholds of global temperature increases.
Article
Geosciences, Multidisciplinary
Manuela Brunner, Lieke A. Melsen, Andrew W. Wood, Oldrich Rakovec, Naoki Mizukami, Wouter J. M. Knoben, Martyn P. Clark
Summary: This study evaluates the ability of models calibrated according to standard model calibration metrics to capture flood spatial coherence and triggering mechanisms. It was found that the models tend to underestimate flood magnitude and do not accurately capture flood timing. Results also show that changes in precipitation and temperature may not always be well translated into changes in flood flow, making local and regional flood hazard assessments more difficult for future conditions.
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2021)
Article
Geosciences, Multidisciplinary
Manuela Brunner, Lieke A. Melsen, Andrew J. Newman, Andrew W. Wood, Martyn P. Clark
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2020)
Article
Meteorology & Atmospheric Sciences
Andreas F. Prein, Changhai Liu, Kyoko Ikeda, Randy Bullock, Roy M. Rasmussen, Greg J. Holland, Martyn Clark
Article
Geosciences, Multidisciplinary
Andrew J. Newman, Martyn P. Clark
GEOSCIENTIFIC MODEL DEVELOPMENT
(2020)