Jacob A. Nelson
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View article: Insights Into Water Vapor Uptake by Dry Soils Using a Global Eddy Covariance Observation Network
Insights Into Water Vapor Uptake by Dry Soils Using a Global Eddy Covariance Observation Network Open
The exchange of water vapor between soil and atmosphere is a key component of land–atmosphere interactions, especially under dry conditions. Soil water vapor adsorption (SVA) occurs when the atmospheric water vapor pressure is greater than…
View article: On the added value of sequential deep learning for the upscaling of evapotranspiration
On the added value of sequential deep learning for the upscaling of evapotranspiration Open
Estimating ecosystem–atmosphere fluxes such as evapotranspiration (ET) in a robust manner and at a global scale remains a challenge. Methods based on machine learning (ML) have shown promising results in achieving such upscaling, providing…
View article: A novel approach to increase accuracy in remotely sensed evapotranspiration through basin water balance and flux tower constraints
A novel approach to increase accuracy in remotely sensed evapotranspiration through basin water balance and flux tower constraints Open
Remote sensing-derived evapotranspiration (RSET) products capture the spatiotemporal variations of evapotranspiration (ET) from field to basin scales with unprecedented details. However, their accuracy varies across RSET estimation methods…
View article: Altered seasonal sensitivity of net ecosystem exchange to controls driven by nutrient balances in a semi-arid savanna
Altered seasonal sensitivity of net ecosystem exchange to controls driven by nutrient balances in a semi-arid savanna Open
Semi-arid ecosystems dominate the variability and trend of the terrestrial carbon sink. They are sensitive to environmental changes following anthropogenic influences, such as an altered ratio of nitrogen (N) to phosphorus (P) due to incre…
View article: Constraining a data-driven CO <sub>2</sub> flux model by ecosystem and atmospheric observations using atmospheric transport
Constraining a data-driven CO <sub>2</sub> flux model by ecosystem and atmospheric observations using atmospheric transport Open
Global estimates of the terrestrial land-atmosphere flux of CO2 (NEE) from data-driven models differ widely depending on their underlying data and methodology. Bottom-up models trained on eddy-covariance data are most informative at the ec…
View article: Evapotranspiration Dynamics and Partitioning in a Grassed Vineyard: Ecophysiological and Computational Modeling Approaches
Evapotranspiration Dynamics and Partitioning in a Grassed Vineyard: Ecophysiological and Computational Modeling Approaches Open
Plenty of information on evapotranspiration (ET) dynamics and partitioning into nonbiological (evaporation, E) and biological (transpiration, T) components is available in literature. However, in agro‐ecosystems where more than one vegetat…
View article: X-BASE: the first terrestrial carbon and water flux products from an extended data-driven scaling framework, FLUXCOM-X
X-BASE: the first terrestrial carbon and water flux products from an extended data-driven scaling framework, FLUXCOM-X Open
Mapping in situ eddy covariance measurements of terrestrial land–atmosphere fluxes to the globe is a key method for diagnosing the Earth system from a data-driven perspective. We describe the first global products (called X-BASE) from a ne…
View article: Satellite remote sensing reveals the footprint of biodiversity on multiple ecosystem functions across the NEON eddy covariance network
Satellite remote sensing reveals the footprint of biodiversity on multiple ecosystem functions across the NEON eddy covariance network Open
Biodiversity relates to ecosystem functioning by modulating biogeochemical cycles of carbon, water, energy, and nutrients within and between multiple biotic and abiotic components of the ecosystems. However, large-scale, systematic measure…
View article: Supplementary material to "Altered Seasonal Sensitivity of Net Ecosystem Exchange to Controls Driven by Nutrient Balances in a Semi-arid Savanna"
Supplementary material to "Altered Seasonal Sensitivity of Net Ecosystem Exchange to Controls Driven by Nutrient Balances in a Semi-arid Savanna" Open
View article: Altered Seasonal Sensitivity of Net Ecosystem Exchange to Controls Driven by Nutrient Balances in a Semi-arid Savanna
Altered Seasonal Sensitivity of Net Ecosystem Exchange to Controls Driven by Nutrient Balances in a Semi-arid Savanna Open
Semi-arid ecosystems dominate variability and trend of the terrestrial carbon sink. They are sensitive to environmental changes following anthropogenic influence, such as an altered ratio of nitrogen (N) to phosphorus (P) due to increasing…
View article: On the added value of sequential deep learning for upscaling evapotranspiration
On the added value of sequential deep learning for upscaling evapotranspiration Open
Estimating ecosystem-atmosphere fluxes such as evapotranspiration (ET) in a robust manner and at global scale remains a challenge. Machine learning-based methods have shown promising results to achieve such upscaling, providing a complemen…
View article: Challenges and Future Directions in Quantifying Terrestrial Evapotranspiration
Challenges and Future Directions in Quantifying Terrestrial Evapotranspiration Open
Terrestrial evapotranspiration is the second‐largest component of the land water cycle, linking the water, energy, and carbon cycles and influencing the productivity and health of ecosystems. The dynamics of ET across a spectrum of spatiot…
View article: Energy balance closure at FLUXNET sites revisited
Energy balance closure at FLUXNET sites revisited Open
View article: Interpretability of negative latent heat fluxes from eddy covariance measurements in dry conditions
Interpretability of negative latent heat fluxes from eddy covariance measurements in dry conditions Open
It is known from arid and semi-arid ecosystems that atmospheric water vapor can directly be adsorbed by the soil matrix. Soil water vapor adsorption was typically neglected and only recently received attention because of improvements in me…
View article: Reply on RC1
Reply on RC1 Open
Abstract. Mapping in-situ eddy covariance measurements of terrestrial land-atmosphere fluxes to the globe is a key method for diagnosing the Earth system from a data-driven perspective. We describe the first global product…
View article: Technical note: Flagging inconsistencies in flux tower data
Technical note: Flagging inconsistencies in flux tower data Open
Global collections of synthesized flux tower data such as FLUXNET have accelerated scientific progress beyond the eddy covariance community. However, remaining data issues in FLUXNET data pose challenges for users, particularly for multi-s…
View article: Comment on egusphere-2024-165
Comment on egusphere-2024-165 Open
Abstract. Mapping in-situ eddy covariance measurements of terrestrial land-atmosphere fluxes to the globe is a key method for diagnosing the Earth system from a data-driven perspective. We describe the first global product…
View article: Comment on egusphere-2024-165
Comment on egusphere-2024-165 Open
Abstract. Mapping in-situ eddy covariance measurements of terrestrial land-atmosphere fluxes to the globe is a key method for diagnosing the Earth system from a data-driven perspective. We describe the first global product…
View article: Mapping soil moisture uptake by dry soils across Eddy covariance measurement sites
Mapping soil moisture uptake by dry soils across Eddy covariance measurement sites Open
Soils take up water vapor from the atmosphere through processes that involve vapor diffusion and water retention. This can theoretically occur in any ecosystem under the preconditions of a humid atmosphere and dry soil pores. It can play a…
View article: A new post-hoc method to improve the eddy-covariance-based evapotranspiration measurements
A new post-hoc method to improve the eddy-covariance-based evapotranspiration measurements Open
Terrestrial evapotranspiration (ET) is the nexus of the water, energy and carbon cycles, and therefore accurate quantification of ET is important for understanding the climate and the Earth system. However, current ET estimates derived fro…
View article: Terrestrial carbon and water flux products from an extended data-driven scaling framework, FLUXCOM-X
Terrestrial carbon and water flux products from an extended data-driven scaling framework, FLUXCOM-X Open
Mapping in-situ eddy covariance measurements of terrestrial carbon and water fluxes to the globe is a key method for diagnosing the Earth system from a data-driven perspective. We describe the first global products (called X-BASE) from a n…
View article: Detecting Multiscale Carbon Controls in a Mediterranean Tree-Grass Ecosystem with Different Fertilization Treatments
Detecting Multiscale Carbon Controls in a Mediterranean Tree-Grass Ecosystem with Different Fertilization Treatments Open
Semi-arid ecosystems significantly impact the variability of the global terrestrial carbon sink and are influenced by a changing climate as well as anthropogenic nitrogen deposition. To understand how different nutrient availability impact…
View article: Empowering local Climate Change mitigation policies through Eddy Covariance flux measurements
Empowering local Climate Change mitigation policies through Eddy Covariance flux measurements Open
According to the IPCC and the Paris Agreement, the imperative to limit global warming to 1.5°C, or well below 2°C, compared to the pre-industrial era, necessitates achieving a balance between anthropogenic emissions by sources an…
View article: X-BASE: the first terrestrial carbon and water flux products from an extended data-driven scaling framework, FLUXCOM-X
X-BASE: the first terrestrial carbon and water flux products from an extended data-driven scaling framework, FLUXCOM-X Open
Mapping in-situ eddy covariance measurements of terrestrial land-atmosphere fluxes to the globe is a key method for diagnosing the Earth system from a data-driven perspective. We describe the first global products (called X-BASE) from a ne…
View article: A New Post‐Hoc Method to Reduce the Energy Imbalance in Eddy Covariance Measurements
A New Post‐Hoc Method to Reduce the Energy Imbalance in Eddy Covariance Measurements Open
Latent and sensible heat flux observations are essential for understanding land–atmosphere interactions. Measurements from the eddy covariance technique are widely used but suffer from systematic energy imbalance problems, partly due to mi…
View article: Charting the Future of the FLUXNET Network
Charting the Future of the FLUXNET Network Open
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View article: Comment on egusphere-2023-2556
Comment on egusphere-2023-2556 Open
Abstract. It is known from arid and semi-arid ecosystems that atmospheric water vapor is directly adsorbed by the soil matrix during the night. Soil water vapor adsorption was typically neglected and only recently go…
View article: Interpretability of negative latent heat fluxes from Eddy Covariance measurements during dry conditions
Interpretability of negative latent heat fluxes from Eddy Covariance measurements during dry conditions Open
It is known from arid and semi-arid ecosystems that atmospheric water vapor is directly adsorbed by the soil matrix during the night. Soil water vapor adsorption was typically neglected and only recently got attention because of improvemen…
View article: Dataset for intercomparison of Sen4GPP GPP products at fluxtower sites
Dataset for intercomparison of Sen4GPP GPP products at fluxtower sites Open
This dataset provides the estimation of various gross primary productivity (GPP) products made within the Sen4GPP project at eddy covariance flux tower sites. These cover about the time range from "2018-05-04" to "2020-12-29" with an 8-dai…
View article: Dataset for intercomparison of Sen4GPP GPP products at fluxtower sites
Dataset for intercomparison of Sen4GPP GPP products at fluxtower sites Open
This dataset provides the estimation of various gross primary productivity (GPP) products made within the Sen4GPP project at eddy covariance flux tower sites. These cover about the time range from "2018-05-04" to "2020-12-29" with an 8-dai…