Sean Swenson
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View article: One‐at‐a‐Time Parameter Perturbation Ensemble of the Community Land Model, Version 5.1
One‐at‐a‐Time Parameter Perturbation Ensemble of the Community Land Model, Version 5.1 Open
Comprehensive land models are subject to significant parametric uncertainty, which can be hard to quantify due to the large number of parameters and high model computational costs. We constructed a large parameter perturbation ensemble (PP…
View article: On Using AI‐Based Large‐Sample Emulators for Land/Hydrology Model Calibration and Regionalization
On Using AI‐Based Large‐Sample Emulators for Land/Hydrology Model Calibration and Regionalization Open
AI‐based model emulators have emerged as a pragmatic strategy for calibrating Earth System models or their components (e.g., land, atmosphere, ocean), circumventing the previously insurmountable hurdle of the process‐heavy models' computat…
View article: Global quantification of the eco-hydrological co-benefits of soil carbon sequestration
Global quantification of the eco-hydrological co-benefits of soil carbon sequestration Open
Soil carbon sequestration is an important strategy for climate change mitigation with several co-benefits, including increased water holding capacity and infiltration. However, a global-scale quantification of hydrological co-benefits for …
View article: Constraining climate model projections with observations amplifies future runoff declines
Constraining climate model projections with observations amplifies future runoff declines Open
Climate models are increasingly used to inform water availability projections at regional scales. However, the models' own runoff sensitivities—the change in runoff per unit change of precipitation or temperature—are often biased, which ca…
View article: Ensemble‐Based Spatially Distributed CLM5 Hydrological Parameter Estimation for the Continental United States
Ensemble‐Based Spatially Distributed CLM5 Hydrological Parameter Estimation for the Continental United States Open
One of the major challenges in large‐domain hydrological modeling efforts lies in the estimation of spatially distributed hydrological parameters while simultaneously accounting for their associated uncertainties. Addressing this challenge…
View article: Toward Understanding Parametric Controls on Runoff Sensitivity to Climate in the Community Land Model: A Case Study Over the Colorado River Headwaters
Toward Understanding Parametric Controls on Runoff Sensitivity to Climate in the Community Land Model: A Case Study Over the Colorado River Headwaters Open
Crucial to the assessment of future water security is how the land model component of Earth System Models partition precipitation into evapotranspiration and runoff, and the sensitivity of this partitioning to climate. This sensitivity is …
View article: Roles of forests in moderating the diurnal cycle of land–atmosphere interactions
Roles of forests in moderating the diurnal cycle of land–atmosphere interactions Open
Forests moderate the microclimate through evapotranspiration and biomass heat flux. However, understanding the contributions of dense forests remains challenging due to observational limitations. Our in-situ observations show that forests …
View article: Land Surface Modeling as a Tool to Explore Sustainable Irrigation Practices in Mediterranean Fruit Orchards
Land Surface Modeling as a Tool to Explore Sustainable Irrigation Practices in Mediterranean Fruit Orchards Open
Irrigation strongly influences land‐atmosphere processes from regional to global scale. Therefore, an accurate representation of irrigation is crucial to understand these interactions and address water resources issues. While irrigation sc…
View article: Novel assessment and development of land surface modelling for irrigation schemes in Mediterranean apple orchards
Novel assessment and development of land surface modelling for irrigation schemes in Mediterranean apple orchards Open
Land-surface models (LSM) that simulate agricultural systems can provide key support for decision makers in precision irrigation and in the management of water resources under different climate scenarios. An accurate representation of irri…
View article: Simulating Mass Balance and Dynamics of Mountain Glaciers within an Earth System Modeling Framework
Simulating Mass Balance and Dynamics of Mountain Glaciers within an Earth System Modeling Framework Open
Simulating mass changes and ice dynamics for mountain glaciers using Earth System Models (ESMs) is challenging due to their small size, sheer number, and spatial discontinuities in the ground ice coverage. This has resulted in a knowledge …
View article: Investigating the hydrological co-benefits of soil carbon sequestration using a land surface model
Investigating the hydrological co-benefits of soil carbon sequestration using a land surface model Open
Soil carbon sequestration is an important strategy for climate change mitigation. Soil carbon stocks on agricultural lands can be augmented through sustainable land management practices such as organic manures addition, cover cropping, mul…
View article: Land surface modeling as a tool to explore sustainable irrigation practices in Mediterranean fruit orchards
Land surface modeling as a tool to explore sustainable irrigation practices in Mediterranean fruit orchards Open
Land surface modeling as a tool to explore sustainable irrigation practices in Mediterranean fruit orchardsO. Dombrowski1, C. Brogi1, H.-J. Hendricks Franssen1, V. Pisinaras2, A. Panagopoulos2, S. Swenson3, H. Bogena11Agrosphere (IBG-3), F…
View article: Large Ensemble Diagnostic Evaluation of Hydrologic Parameter Uncertainty in the Community Land Model Version 5 (CLM5)
Large Ensemble Diagnostic Evaluation of Hydrologic Parameter Uncertainty in the Community Land Model Version 5 (CLM5) Open
Land surface models such as the Community Land Model version 5 (CLM5) seek to enhance understanding of terrestrial hydrology and aid in the evaluation of anthropogenic and climate change impacts. However, the effects of parametric uncertai…
View article: Characterizing uncertainty in Community Land Model version 5 hydrological applications in the United States
Characterizing uncertainty in Community Land Model version 5 hydrological applications in the United States Open
View article: CLM5 CAMELS Basins Ensemble
CLM5 CAMELS Basins Ensemble Open
Land surface models such as Community Land Model Version 5 (CLM5) are essential tools for simulating the behaviors of the terrestrial system. Despite the extensive application of CLM5, limited attention has been paid to the underlying unce…
View article: Moving Land Models Toward More Actionable Science: A Novel Application of the Community Terrestrial Systems Model Across Alaska and the Yukon River Basin
Moving Land Models Toward More Actionable Science: A Novel Application of the Community Terrestrial Systems Model Across Alaska and the Yukon River Basin Open
The Arctic hydrological system is an interconnected system that is experiencing rapid change. It is comprised of permafrost, snow, glacier, frozen soils, and inland river systems. In this study, we aim to lower the barrier of using complex…
View article: Implementation and Evaluation of Irrigation Techniques in the Community Land Model
Implementation and Evaluation of Irrigation Techniques in the Community Land Model Open
Several previous studies have highlighted the irrigation‐induced impacts on the global and regional water cycle, energy budget, and near‐surface climate. While land models are widely used to address this question, the implementations of ir…
View article: Evaluating a reservoir parametrization in the vector-based global routing model mizuRoute (v2.0.1) for Earth system model coupling
Evaluating a reservoir parametrization in the vector-based global routing model mizuRoute (v2.0.1) for Earth system model coupling Open
Human-controlled reservoirs have a large influence on the global water cycle. While global hydrological models use generic parameterizations to model dam operations, the representation of reservoir regulation is still lacking in many Earth…
View article: Comment on gmd-2022-16
Comment on gmd-2022-16 Open
Abstract. Human-controlled reservoirs have a large influence on the global water cycle. While global hydrological models use generic parameterizations to model dam operations, the representation of reservoir regulation is …
View article: Assessing the variability of soil temperatures in Land Surface Models using outputs from the Soil Parameter Model Intercomparison Project (SP-MIP)
Assessing the variability of soil temperatures in Land Surface Models using outputs from the Soil Parameter Model Intercomparison Project (SP-MIP) Open
<p><strong>Results: </strong>Soil temperature is a crucial variable in Land Surface Models (LSMs) because it affects the fractions of frozen and unfrozen water content in the soil. For example, getting the coupling betwee…
View article: Evaluating a reservoir parametrisation in a vector-based global routing model for Earth System Model coupling
Evaluating a reservoir parametrisation in a vector-based global routing model for Earth System Model coupling Open
<p>Humans have fundamentally altered global river flow by constructing reservoirs and building water-diversion schemes for irrigation. Reservoir operation and the regulation of river flow is important for estimating global water flux…
View article: Improvements in Wintertime Surface Temperature Variability in the Community Earth System Model Version 2 (CESM2) Related to the Representation of Snow Density
Improvements in Wintertime Surface Temperature Variability in the Community Earth System Model Version 2 (CESM2) Related to the Representation of Snow Density Open
The Community Earth System Model (CESM) is widely used for the prediction and understanding of climate variability and change. Accurate simulation of the behavior of near surface air temperature ( T 2 m ) is critical in such a model for ad…
View article: Moving land models towards actionable science: A novel application of the Community Terrestrial Systems Model across Alaska and the Yukon River Basin
Moving land models towards actionable science: A novel application of the Community Terrestrial Systems Model across Alaska and the Yukon River Basin Open
Earth and Space Science Open Archive This preprint has been submitted to and is under consideration at Water Resources Research. ESSOAr is a venue for early communication or feedback before peer review. Data may be preliminary.Learn more a…
View article: Evaluating a reservoir parametrisation in the vector-based global routing model mizuRoute (v2.0.1) for Earth System Model coupling
Evaluating a reservoir parametrisation in the vector-based global routing model mizuRoute (v2.0.1) for Earth System Model coupling Open
Human-controlled reservoirs have a large influence on the global water cycle. While global hydrological models use generic parametrisations to model human dam operations, the representation of reservoir regulation is often still lacking in…
View article: CLM5 CAMELS Basins Ensemble
CLM5 CAMELS Basins Ensemble Open
Land surface models such as Community Land Model Version 5 (CLM5) are essential tools for simulating the behaviors of the terrestrial system. Despite the extensive application of CLM5, limited attention has been paid to the underlying unce…
View article: Slippery Slopes: Gaining Traction in the Complex Process of Snow Model Intercomparison
Slippery Slopes: Gaining Traction in the Complex Process of Snow Model Intercomparison Open
he Earth System Model-Snow Model Intercomparison Project (ESM-SnowMIP) is the fourth such experiment in 24 years to investigate key processes in the modeling of snow mass and energy budgets {1995-2001: Project for Intercomparison of Land S…
View article: High-Resolution Regional Climate Simulations of Arctic Hydroclimatic Change
High-Resolution Regional Climate Simulations of Arctic Hydroclimatic Change Open
<p>The Arctic has warmed during the recent observational record and is projected to keep warming through the end of the 21<sup>st</sup> century in nearly every future emissions scenario and global climate model. This will…
View article: Evaluation of the new irrigation implementation in CTSM
Evaluation of the new irrigation implementation in CTSM Open
<p>Many observational and modelling studies have highlighted the important role that irrigation plays in the terrestrial hydrological and energy cycle. Land surface models are a key tool to study these interactions, underlining the i…
View article: A novel application of an adaptive surrogate-based modeling optimization (ASMO) for the Community Territory System Model (CTSM) in Alaska
A novel application of an adaptive surrogate-based modeling optimization (ASMO) for the Community Territory System Model (CTSM) in Alaska Open
<p>Climate-induced changes in snow cover, river flow, and freshwater ecosystems will greatly affect the indigenous groups in the Alaska and Yukon River Basin. To support policy-making on climate adaptation and mitigation for these un…
View article: Representation of Plant Hydraulics in the Noah‐MP Land Surface Model: Model Development and Multiscale Evaluation
Representation of Plant Hydraulics in the Noah‐MP Land Surface Model: Model Development and Multiscale Evaluation Open
Plants are expected to face increasing water stress under future climate change. Most land surface models, including Noah‐MP, employ an idealized “big‐leaf” concept to regulate water and carbon fluxes in response to soil moisture stress th…