Creator details:

Alexander Graf (Full Member of TR32)

Research Center Jülich
Institute of Bio- and Geosciences: Agrosphere (IBG-3)
Wilhelm-Johnen-Straße
52425 Jülich

E-Mail: a.graf@fz-juelich.de
ORCID: 0000-0003-4870-7622
Internet: http://www.fz-juelich.de/ibg/ibg-3/EN/Home/home_node.html



Associated data:

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[1883] - A comprehensive dataset of vegetation states, fluxes of matter and energy, weather, agricultural management, and soil properties from intensively monitored crop sites in Western Germany
Data - view metadataKeyword(s): Atmosphere, Vegetation, Soil, Agriculture, Biomass, Root, Leaf, APES, LAI, Eddy Covariance, Surface Fluxes, CO2 Flux, Evapotranspiration, Latent Heat Flux, NEE, Sensible Heat Flux, Land Management, [...]Data - view metadata
Creator(s): T. G. Reichenau W. Korres M. Schmidt A. Graf G. Welp N. Meyer A. Stadler C. Brogi K. Schneider no additional description
Metadata Creator: T. G. Reichenau     Metadata Date: 2020-09-21 13:19:32     TR32 Topic: VegetationData - download dataset

[1889] - A comprehensive dataset of vegetation states, fluxes of matter and energy, weather, agricultural management, and soil properties from intensively monitored crop sites in Western Germany
Data - view metadataKeyword(s): Atmosphere, Vegetation, Soil, Agriculture, Biomass, Root, Leaf, Stem, Fruit, Phenology, Canopy Photosynthesis, LAI, Eddy Covariance, Surface Fluxes, CO2 Flux, Evapotranspiration, Latent Heat Flux, [...]Data - view metadata
Creator(s): T. G. Reichenau W. Korres M. Schmidt A. Graf G. Welp N. Meyer A. Stadler C. Brogi K. Schneider no additional description
Metadata Creator: T. G. Reichenau     Metadata Date: 2020-06-25 20:15:56     TR32 Topic: VegetationData - download dataset

[1886] - A comprehensive dataset of vegetation states, fluxes of matter and energy, weather, agricultural management, and soil properties from intensively monitored crop sites in Western Germany
Data - view metadataKeyword(s): Atmosphere, Vegetation, Soil, Agriculture, Biomass, Root, Leaf, Stem, Fruit, Phenology, Canopy Photosynthesis, LAI, Eddy Covariance, Surface Fluxes, CO2 Flux, Evapotranspiration, Latent Heat Flux, [...]Data - view metadata
Creator(s): T. G. Reichenau W. Korres M. Schmidt A. Graf G. Welp N. Meyer A. Stadler C. Brogi K. Schneider no additional description
Metadata Creator: T. G. Reichenau     Metadata Date: 2020-06-23 08:34:35     TR32 Topic: VegetationData - download dataset

[1808] - Soil Respiration during CloudRoots
Data - view metadataKeyword(s): CloudRoots campaign 2018, Soil RespirationData - view metadata
Creator(s): A. Graf O. Esser J. Schmäck no additional description
Metadata Creator: A. Graf     Metadata Date: 2019-01-08 14:19:21     TR32 Topic: SoilData - download dataset

[1807] - Vegetation profiles of CO2, H2O, temperature and wind speed during the CloudRoots campaign 2018
Data - view metadataKeyword(s): CloudRoots campaign 2018, CO2, H2O, Temperature Profiles, Wind ProfileData - view metadata
Creator(s): A. Graf J. Schmäck Data - view additional description
Metadata Creator: A. Graf     Metadata Date: 2018-08-08 12:29:39     TR32 Topic: Vegetationno download possible

[1692] - Multi-site calibration and validation of a net ecosystem carbon exchange model for croplands
Publication - view metadataKeyword(s): Soil Respiration, Coupled Modeling, Carbon Modelling, Agriculture, CO2 Flux, NEEPublication - view metadata
Creator(s): A. Klosterhalfen M. Herbst L. Weihermüller A. Graf M. Schmidt A. Stadler K. Schneider J. Subke J. A. Huisman H. Vereecken no additional description
Metadata Creator: M. Herbst     Metadata Date: 2017-09-14 10:14:54     TR32 Topic: Vegetationno download possible

[1657] - Combining Sun-Induced Chlorophyll Fluorescence and Photochemical Reflectance Index Improves Diurnal Modeling of Gross Primary Productivity
Publication - view metadataKeyword(s): Spectroscopy, Chlorophyll Fluorescence, GPP, Vegetation, PhotosynthesisPublication - view metadata
Creator(s): A. Schickling M. Matveeva A. Damm J. Schween A. Wahner A. Graf S. Crewell U. Rascher no additional description
Metadata Creator: T. Kramm     Metadata Date: 2017-05-26 12:01:51     TR32 Topic: VegetationPublication - download dataset

[1655] - On the role of patterns in understanding the functioning of soil-vegetation-atmosphere systems
Publication - view metadataKeyword(s): Soil, Pattern, Soil Moisture, WaveletPublication - view metadata
Creator(s): H. Vereecken Y. A. Pachepsky C. Simmer J. Rihani A. Kunoth W. Korres A. Graf H. Hendricks-Franssen I. Thiele-Eich Y. Shao no additional description
Metadata Creator: C. Curdt     Metadata Date: 2017-05-23 12:30:00     TR32 Topic: Soilno download possible

[1043] - Intercomparison of methods for the simultaneous estimation of zero-plane displacement and aerodynamic roughness length from single-level eddy-covariance data
Publication - view metadataKeyword(s): Atmosphere–Land Interaction, Boundary Layer, Estimation, Momentum FluxPublication - view metadata
Creator(s): A. Graf A. van de Boer A. F. Moene H. Vereecken no additional description
Metadata Creator: A. Graf     Metadata Date: 2014-09-18 13:49:12     TR32 Topic: Atmosphereno download possible

[1080] - Uncertainty analysis of eddy covariance CO2 flux measurements for different EC tower distances using an extended two-tower approach
Publication - view metadataKeyword(s): Flux Footprint, Eddy Covariance, Uncertainty Quantification, CO2Publication - view metadata
Creator(s): H. Post H. Hendricks-Franssen A. Graf M. Schmidt H. Vereecken no additional description
Metadata Creator: M. Schmidt     Metadata Date: 2014-09-18 09:12:33     TR32 Topic: Atmosphereno download possible

[1038] - Estimation of the refractive index structure parameter from single-level daytime routine weather data
Publication - view metadataKeyword(s): Atmosphere, Meteorology, Scintillometry, Atmospheric MeasurementPublication - view metadata
Creator(s): A. van de Boer A. F. Moene A. Graf C. Simmer A. (. Holtslag no additional description
Metadata Creator: T. Kramm     Metadata Date: 2014-09-08 10:45:28     TR32 Topic: Atmosphereno download possible

[1015] - Spatiotemporal relations between water budget components and soil water content in a forested tributary catchment
Publication - view metadataKeyword(s): Soil Moisture, Atmosphere–Land Interaction, Catchment Hydrology, PatternPublication - view metadata
Creator(s): A. Graf H. Bogena C. Drüe H. Hardelauf T. Pütz G. Heinemann H. Vereecken no additional description
Metadata Creator: A. Graf     Metadata Date: 2014-08-26 16:16:25     TR32 Topic: Soilno download possible

[877] - Improving the stem heat balance method for determining sap-flow in wheat
Publication - view metadataKeyword(s): Sap Flow, Numeric Modelling, Eddy CovariancePublication - view metadata
Creator(s): M. Langensiepen M. Kupisch A. Graf M. Schmidt F. Ewert no additional description
Metadata Creator: M. Kupisch     Metadata Date: 2014-06-18 16:08:46     TR32 Topic: Vegetationno download possible

[876] - On the spatial variation of soil rhizospheric and heterotrophic respiration in a winter wheat stand
Publication - view metadataKeyword(s): Efflux, CO2, Carbon, Soil Respiration, Spatial Variability, Root, Heterotrophic RespirationPublication - view metadata
Creator(s): N. Prolingheuer B. Scharnagl A. Graf H. Vereecken M. Herbst no additional description
Metadata Creator: M. Herbst     Metadata Date: 2014-06-12 14:42:06     TR32 Topic: Soilno download possible

[832] - EOF analysis of spatiotemporal patterns at the field scale in the TR32 domain
Presentation - view metadataKeyword(s): Research Training Day, IRTGPresentation - view metadata
Creator(s): A. Graf no additional description
Metadata Creator: N. Heinrichs     Metadata Date: 2014-02-12 11:47:21     TR32 Topic: Otherno download possible

[794] - Sensitivity and uncertainty of analytical footprint models according to a combined natural tracer and ensemble approach
Publication - view metadataKeyword(s): Eddy Covariance, FootprintPublication - view metadata
Creator(s): A. van de Boer A. F. Moene D. Schüttemeyer A. Graf no additional description
Metadata Creator: D. Schüttemeyer     Metadata Date: 2013-12-10 14:06:29     TR32 Topic: Atmosphereno download possible

[676] - Errors in modelling carbon turnover induced by temporal temperature aggregation
Publication - view metadataKeyword(s): SOC, Soil Respiration, Temperature, Numerical SimulationPublication - view metadata
Creator(s): L. Weihermüller J. A. Huisman A. Graf M. Herbst H. Vereecken no additional description
Metadata Creator: J. A. (. Huisman     Metadata Date: 2013-12-05 13:49:33     TR32 Topic: Otherno download possible

[674] - Temporal downscaling of soil CO2 efflux measurements based on time-stable spatial patterns
Publication - view metadataKeyword(s): Soil CO2 efflux, Winter Wheat, Sugar Beet, Seasonal VariationPublication - view metadata
Creator(s): A. Graf N. Prolingheuer A. Schickling M. Schmidt K. Schneider D. Schüttemeyer M. Herbst J. A. Huisman L. Weihermüller B. Scharnagl C. Steenpass R. Harms H. Vereecken no additional description
Metadata Creator: A. Graf     Metadata Date: 2013-12-05 13:44:52     TR32 Topic: Soilno download possible

[678] - Analyzing spatiotemporal variability of heterotrophic soil respiration at the field scale using orthogonal functions
Publication - view metadataKeyword(s): Soil CO2 efflux, Semivariogram, Closed Chamber, Soil RespirationPublication - view metadata
Creator(s): A. Graf M. Herbst L. Weihermüller J. A. Huisman N. Prolingheuer L. Bornemann H. Vereecken no additional description
Metadata Creator: A. Graf     Metadata Date: 2013-12-05 13:31:14     TR32 Topic: Soilno download possible

[679] - A geostatistical approach to the field-scale pattern of heterotrophic soil CO2 emission using covariates
Publication - view metadataKeyword(s): Efflux, CO2, Carbon, Pools, Spatial Variability, Carbon Fractions, Heterotrophic RespirationPublication - view metadata
Creator(s): M. Herbst L. Bornemann A. Graf G. Welp H. Vereecken W. Amelung no additional description
Metadata Creator: M. Herbst     Metadata Date: 2013-12-05 13:17:09     TR32 Topic: Soilno download possible

[677] - Inverse determination of soil heterotrophic respiration dependency on temperature and water content under field conditions
Publication - view metadataKeyword(s): SRP, Soil Water Content, SensorPublication - view metadata
Creator(s): J. Bauer L. Weihermüller J. A. Huisman M. Herbst A. Graf J. Sequaris H. Vereecken no additional description
Metadata Creator: J. A. (. Huisman     Metadata Date: 2013-12-05 13:08:46     TR32 Topic: Soilno download possible

[734] - Inverse determination of heterotrophic soil respiration response to temperature and water content under field conditions
Publication - view metadataKeyword(s): Soil Respiration, Heterotrophic Respiration, Water Content, Inverse Parameter EstimationPublication - view metadata
Creator(s): J. Bauer L. Weihermüller J. A. Huisman M. Herbst A. Graf J. Sequaris H. Vereecken no additional description
Metadata Creator: J. A. (. Huisman     Metadata Date: 2013-12-03 16:05:03     TR32 Topic: Soilno download possible

[732] - A strategy for quality and uncertainty assessment of long-term eddy-covariance measurements
Publication - view metadataKeyword(s): Uncertainty Quantification, Eddy Covariance, Quality Control, Flux Footprint, Energy Balance ClosurePublication - view metadata
Creator(s): M. Mauder M. Cuntz C. Drüe A. Graf C. Rebmann H. P. Schmid M. Schmidt R. Steinbrecher no additional description
Metadata Creator: C. Drüe     Metadata Date: 2013-12-03 15:58:38     TR32 Topic: Atmosphereno download possible

[701] - Estimating random errors of eddy covariance data: an extended two-tower approach
Publication - view metadataKeyword(s): Measurement Error, Eddy Covariance, Random Error, Energy Balance Closure, Data AssimilationPublication - view metadata
Creator(s): W. Kessomkiat H. Hendricks-Franssen A. Graf H. Vereecken no additional description
Metadata Creator: H. Hendricks-Franssen     Metadata Date: 2013-12-03 12:52:25     TR32 Topic: Otherno download possible

[750] - The influence of leaf photosynthetic efficiency and stomatal closure on canopy carbon uptake and evapotranspiration - A model study in wheat and sugar beet
Publication - view metadataKeyword(s): Sugar Beet, Photosynthetic Efficiency, Carbon, Evapotranspiration, Winter Wheat, Crop/s, CO2Publication - view metadata
Creator(s): A. Schickling A. Graf R. Pieruschka C. Plückers H. Geiß I. Lai J. Schween K. Erentok M. Schmidt A. Wahner S. Crewell U. Rascher no additional description
Metadata Creator: A. Schickling     Metadata Date: 2013-12-03 10:53:10     TR32 Topic: Vegetationno download possible

[653] - Multistep outflow experiments to determine soil physical and carbon dioxide production parameters
Publication - view metadataKeyword(s): CO2, Soil Water Content, CO2 FluxPublication - view metadata
Creator(s): L. Weihermüller J. A. Huisman M. Herbst A. Graf J. Sequaris no additional description
Metadata Creator: J. A. (. Huisman     Metadata Date: 2013-12-02 16:12:41     TR32 Topic: Soilno download possible

[652] - Characterization and understanding of bare soil respiration spatial variability at plot scale
Publication - view metadataKeyword(s): Soil Respiration, Spatial Variability, Soil Water ContentPublication - view metadata
Creator(s): M. Herbst N. Prolingheuer A. Graf J. A. Huisman L. Weihermüller J. Vanderborght no additional description
Metadata Creator: M. Herbst     Metadata Date: 2013-12-02 16:09:13     TR32 Topic: Soilno download possible

[649] - Multivariate conditional stochastic simulation of soil heterotrophic respiration at plot scale
Publication - view metadataKeyword(s): CO2, Carbon, Field Scale, Spatial Variability, External Drift Kriging, Heterotrophic RespirationPublication - view metadata
Creator(s): M. Herbst N. Prolingheuer A. Graf J. A. Huisman L. Weihermüller J. Vanderborght H. Vereecken no additional description
Metadata Creator: N. Prolingheuer     Metadata Date: 2013-12-02 16:04:40     TR32 Topic: Soilno download possible

[655] - Boundedness of Turbulent Temperature Probability Distributions, and their Relation to the Vertical Profile in the Convective Boundary Layer
Publication - view metadataKeyword(s): Eddy Covariance, Higher Order Moments, Kurtosis, Probability Density Function, Skewness, TurbulencePublication - view metadata
Creator(s): A. Graf D. Schüttemeyer H. Geiß A. Knaps M. Möllmann-Coers J. Schween S. Kollet B. Neininger M. Herbst H. Vereecken no additional description
Metadata Creator: A. Graf     Metadata Date: 2013-12-02 15:59:10     TR32 Topic: Otherno download possible

[651] - Measurement depth effects on the apparent temperature sensitivity of soil respiration in field studies
Publication - view metadataKeyword(s): Temperature, Temperature Sensitivity, CO2 FluxPublication - view metadata
Creator(s): A. Graf L. Weihermüller J. A. Huisman M. Herbst J. Bauer H. Vereecken no additional description
Metadata Creator: A. Graf     Metadata Date: 2013-12-02 15:50:13     TR32 Topic: Soilno download possible

[684] - Validation of a minimum microclimate disturbance chamber for net ecosystem flux measurements
Publication - view metadataKeyword(s): CO2, Eddy Covariance, Evapotranspiration, H2O, ChamberPublication - view metadata
Creator(s): A. Graf J. Werner M. Langensiepen A. van de Boer M. Schmidt M. Kupisch H. Vereecken no additional description
Metadata Creator: A. Graf     Metadata Date: 2013-12-02 12:57:45     TR32 Topic: Vegetationno download possible

[659] - Within-Field Variability of Bare Soil Evaporation Derived from Eddy Covariance Measurements
Publication - view metadataKeyword(s): Eddy Covariance, Soil Moisture, Exchange, WaterPublication - view metadata
Creator(s): J. Vanderborght A. Graf C. Steenpass B. Scharnagl N. Prolingheuer M. Herbst H. Hendricks-Franssen no additional description
Metadata Creator: J. Vanderborght     Metadata Date: 2013-12-02 12:50:38     TR32 Topic: Soilno download possible

[96] - Eddy Covariance fluxes, Merken site 2009
Data - view metadataKeyword(s): 2m-Temperature, Agriculture, Boundary-Layer Stability , CO2Data - view metadata
Creator(s): A. Graf no additional description
Metadata Creator: A. Graf     Metadata Date: 2010-05-19 10:28:43     TR32 Topic: AtmosphereData - download dataset

[72] - Soil respiration surveys during FLUXPAT Selhausen/Merken 2007/2008
Data - view metadataKeyword(s): Atmosphere, CO2 Flux, Soil Moisture, Soil TemperatureData - view metadata
Creator(s): A. Graf no additional description
Metadata Creator: A. Graf     Metadata Date: 2009-12-16 15:10:11     TR32 Topic: SoilData - download dataset
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