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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[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
	Keyword(s): Atmosphere, Vegetation, Soil, Agriculture, Biomass, Root, Leaf, Stem, Fruit, Phenology, Canopy Photosynthesis, LAI, Eddy Covariance, Surface Fluxes, CO2 Flux, Evapotranspiration, Latent Heat Flux, [...]
	Creator(s): T. G. Reichenau W. Korres M. Schmidt A. Graf G. Welp N. Meyer A. Stadler C. Brogi K. Schneider
	Metadata Creator: T. G. Reichenau     Metadata Date: 2020-06-25 20:15:56     TR32 Topic: Vegetation

[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
	Keyword(s): Atmosphere, Vegetation, Soil, Agriculture, Biomass, Root, Leaf, Stem, Fruit, Phenology, Canopy Photosynthesis, LAI, Eddy Covariance, Surface Fluxes, CO2 Flux, Evapotranspiration, Latent Heat Flux, [...]
	Creator(s): T. G. Reichenau W. Korres M. Schmidt A. Graf G. Welp N. Meyer A. Stadler C. Brogi K. Schneider
	Metadata Creator: T. G. Reichenau     Metadata Date: 2020-06-23 08:34:35     TR32 Topic: Vegetation

[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
	Keyword(s): Atmosphere, Vegetation, Soil, Agriculture, Biomass, Root, Leaf, APES, APES, APES, APES, LAI, Eddy Covariance, Surface Fluxes, CO2 Flux, Evapotranspiration, Latent Heat Flux, NEE, Sensible Heat Flux, [...]
	Creator(s): T. G. Reichenau W. Korres M. Schmidt A. Graf G. Welp N. Meyer A. Stadler C. Brogi K. Schneider
	Metadata Creator: T. G. Reichenau     Metadata Date: 2020-06-23 08:34:07     TR32 Topic: Vegetation

[1808] - Soil Respiration during CloudRoots
	Keyword(s): CloudRoots campaign 2018, Soil Respiration
	Creator(s): A. Graf O. Esser J. Schmäck
	Metadata Creator: A. Graf     Metadata Date: 2019-01-08 14:19:21     TR32 Topic: Soil

[1807] - Vegetation profiles of CO2, H2O, temperature and wind speed during the CloudRoots campaign 2018
	Keyword(s): CloudRoots campaign 2018, CO2, H2O, Temperature Profiles, Wind Profile
	Creator(s): A. Graf J. Schmäck
	Metadata Creator: A. Graf     Metadata Date: 2018-08-08 12:29:39     TR32 Topic: Vegetation

[1692] - Multi-site calibration and validation of a net ecosystem carbon exchange model for croplands
	Keyword(s): Soil Respiration, Coupled Modeling, Carbon Modelling, Agriculture, CO2 Flux, NEE
	Creator(s): A. Klosterhalfen M. Herbst L. Weihermüller A. Graf M. Schmidt A. Stadler K. Schneider J. Subke J. A. Huisman H. Vereecken
	Metadata Creator: M. Herbst     Metadata Date: 2017-09-14 10:14:54     TR32 Topic: Vegetation

[1657] - Combining Sun-Induced Chlorophyll Fluorescence and Photochemical Reflectance Index Improves Diurnal Modeling of Gross Primary Productivity
	Keyword(s): Spectroscopy, Chlorophyll Fluorescence, GPP, Vegetation, Photosynthesis
	Creator(s): A. Schickling M. Matveeva A. Damm J. Schween A. Wahner A. Graf S. Crewell U. Rascher
	Metadata Creator: T. Kramm     Metadata Date: 2017-05-26 12:01:51     TR32 Topic: Vegetation

[1655] - On the role of patterns in understanding the functioning of soil-vegetation-atmosphere systems
	Keyword(s): Soil, Pattern, Soil Moisture, Wavelet
	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
	Metadata Creator: C. Curdt     Metadata Date: 2017-05-23 12:30:00     TR32 Topic: Soil

[1043] - Intercomparison of methods for the simultaneous estimation of zero-plane displacement and aerodynamic roughness length from single-level eddy-covariance data
	Keyword(s): Atmosphere–Land Interaction, Boundary Layer, Estimation, Momentum Flux
	Creator(s): A. Graf A. van de Boer A. F. Moene H. Vereecken
	Metadata Creator: A. Graf     Metadata Date: 2014-09-18 13:49:12     TR32 Topic: Atmosphere

[1080] - Uncertainty analysis of eddy covariance CO2 flux measurements for different EC tower distances using an extended two-tower approach
	Keyword(s): Flux Footprint, Eddy Covariance, Uncertainty Quantification, CO2
	Creator(s): H. Post H. Hendricks-Franssen A. Graf M. Schmidt H. Vereecken
	Metadata Creator: M. Schmidt     Metadata Date: 2014-09-18 09:12:33     TR32 Topic: Atmosphere

[1038] - Estimation of the refractive index structure parameter from single-level daytime routine weather data
	Keyword(s): Atmosphere, Meteorology, Scintillometry, Atmospheric Measurement
	Creator(s): A. van de Boer A. F. Moene A. Graf C. Simmer A. (. Holtslag
	Metadata Creator: T. Kramm     Metadata Date: 2014-09-08 10:45:28     TR32 Topic: Atmosphere

[1015] - Spatiotemporal relations between water budget components and soil water content in a forested tributary catchment
	Keyword(s): Soil Moisture, Atmosphere–Land Interaction, Catchment Hydrology, Pattern
	Creator(s): A. Graf H. Bogena C. Drüe H. Hardelauf T. Pütz G. Heinemann H. Vereecken
	Metadata Creator: A. Graf     Metadata Date: 2014-08-26 16:16:25     TR32 Topic: Soil

[877] - Improving the stem heat balance method for determining sap-flow in wheat
	Keyword(s): Sap Flow, Numeric Modelling, Eddy Covariance
	Creator(s): M. Langensiepen M. Kupisch A. Graf M. Schmidt F. Ewert
	Metadata Creator: M. Kupisch     Metadata Date: 2014-06-18 16:08:46     TR32 Topic: Vegetation

[876] - On the spatial variation of soil rhizospheric and heterotrophic respiration in a winter wheat stand
	Keyword(s): Efflux, CO2, Carbon, Soil Respiration, Spatial Variability, Root, Heterotrophic Respiration
	Creator(s): N. Prolingheuer B. Scharnagl A. Graf H. Vereecken M. Herbst
	Metadata Creator: M. Herbst     Metadata Date: 2014-06-12 14:42:06     TR32 Topic: Soil

[832] - EOF analysis of spatiotemporal patterns at the field scale in the TR32 domain
	Keyword(s): Research Training Day, IRTG
	Creator(s): A. Graf
	Metadata Creator: N. Heinrichs     Metadata Date: 2014-02-12 11:47:21     TR32 Topic: Other

[794] - Sensitivity and uncertainty of analytical footprint models according to a combined natural tracer and ensemble approach
	Keyword(s): Eddy Covariance, Footprint
	Creator(s): A. van de Boer A. F. Moene D. Schüttemeyer A. Graf
	Metadata Creator: D. Schüttemeyer     Metadata Date: 2013-12-10 14:06:29     TR32 Topic: Atmosphere

[676] - Errors in modelling carbon turnover induced by temporal temperature aggregation
	Keyword(s): SOC, Soil Respiration, Temperature, Numerical Simulation
	Creator(s): L. Weihermüller J. A. Huisman A. Graf M. Herbst H. Vereecken
	Metadata Creator: J. A. (. Huisman     Metadata Date: 2013-12-05 13:49:33     TR32 Topic: Other

[674] - Temporal downscaling of soil CO2 efflux measurements based on time-stable spatial patterns
	Keyword(s): Soil CO2 efflux, Winter Wheat, Sugar Beet, Seasonal Variation
	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
	Metadata Creator: A. Graf     Metadata Date: 2013-12-05 13:44:52     TR32 Topic: Soil

[678] - Analyzing spatiotemporal variability of heterotrophic soil respiration at the field scale using orthogonal functions
	Keyword(s): Soil CO2 efflux, Semivariogram, Closed Chamber, Soil Respiration
	Creator(s): A. Graf M. Herbst L. Weihermüller J. A. Huisman N. Prolingheuer L. Bornemann H. Vereecken
	Metadata Creator: A. Graf     Metadata Date: 2013-12-05 13:31:14     TR32 Topic: Soil

[679] - A geostatistical approach to the field-scale pattern of heterotrophic soil CO2 emission using covariates
	Keyword(s): Efflux, CO2, Carbon, Pools, Spatial Variability, Carbon Fractions, Heterotrophic Respiration
	Creator(s): M. Herbst L. Bornemann A. Graf G. Welp H. Vereecken W. Amelung
	Metadata Creator: M. Herbst     Metadata Date: 2013-12-05 13:17:09     TR32 Topic: Soil

[677] - Inverse determination of soil heterotrophic respiration dependency on temperature and water content under field conditions
	Keyword(s): SRP, Soil Water Content, Sensor
	Creator(s): J. Bauer L. Weihermüller J. A. Huisman M. Herbst A. Graf J. Sequaris H. Vereecken
	Metadata Creator: J. A. (. Huisman     Metadata Date: 2013-12-05 13:08:46     TR32 Topic: Soil

[734] - Inverse determination of heterotrophic soil respiration response to temperature and water content under field conditions
	Keyword(s): Soil Respiration, Heterotrophic Respiration, Water Content, Inverse Parameter Estimation
	Creator(s): J. Bauer L. Weihermüller J. A. Huisman M. Herbst A. Graf J. Sequaris H. Vereecken
	Metadata Creator: J. A. (. Huisman     Metadata Date: 2013-12-03 16:05:03     TR32 Topic: Soil

[732] - A strategy for quality and uncertainty assessment of long-term eddy-covariance measurements
	Keyword(s): Uncertainty Quantification, Eddy Covariance, Quality Control, Flux Footprint, Energy Balance Closure
	Creator(s): M. Mauder M. Cuntz C. Drüe A. Graf C. Rebmann H. P. Schmid M. Schmidt R. Steinbrecher
	Metadata Creator: C. Drüe     Metadata Date: 2013-12-03 15:58:38     TR32 Topic: Atmosphere

[701] - Estimating random errors of eddy covariance data: an extended two-tower approach
	Keyword(s): Measurement Error, Eddy Covariance, Random Error, Energy Balance Closure, Data Assimilation
	Creator(s): W. Kessomkiat H. Hendricks-Franssen A. Graf H. Vereecken
	Metadata Creator: H. Hendricks-Franssen     Metadata Date: 2013-12-03 12:52:25     TR32 Topic: Other

[750] - The influence of leaf photosynthetic efficiency and stomatal closure on canopy carbon uptake and evapotranspiration - A model study in wheat and sugar beet
	Keyword(s): Sugar Beet, Photosynthetic Efficiency, Carbon, Evapotranspiration, Winter Wheat, Crop/s, CO2
	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
	Metadata Creator: A. Schickling     Metadata Date: 2013-12-03 10:53:10     TR32 Topic: Vegetation

[653] - Multistep outflow experiments to determine soil physical and carbon dioxide production parameters
	Keyword(s): CO2, Soil Water Content, CO2 Flux
	Creator(s): L. Weihermüller J. A. Huisman M. Herbst A. Graf J. Sequaris
	Metadata Creator: J. A. (. Huisman     Metadata Date: 2013-12-02 16:12:41     TR32 Topic: Soil

[652] - Characterization and understanding of bare soil respiration spatial variability at plot scale
	Keyword(s): Soil Respiration, Spatial Variability, Soil Water Content
	Creator(s): M. Herbst N. Prolingheuer A. Graf J. A. Huisman L. Weihermüller J. Vanderborght
	Metadata Creator: M. Herbst     Metadata Date: 2013-12-02 16:09:13     TR32 Topic: Soil

[649] - Multivariate conditional stochastic simulation of soil heterotrophic respiration at plot scale
	Keyword(s): CO2, Carbon, Field Scale, Spatial Variability, External Drift Kriging, Heterotrophic Respiration
	Creator(s): M. Herbst N. Prolingheuer A. Graf J. A. Huisman L. Weihermüller J. Vanderborght H. Vereecken
	Metadata Creator: N. Prolingheuer     Metadata Date: 2013-12-02 16:04:40     TR32 Topic: Soil

[655] - Boundedness of Turbulent Temperature Probability Distributions, and their Relation to the Vertical Profile in the Convective Boundary Layer
	Keyword(s): Eddy Covariance, Higher Order Moments, Kurtosis, Probability Density Function, Skewness, Turbulence
	Creator(s): A. Graf D. Schüttemeyer H. Geiß A. Knaps M. Möllmann-Coers J. Schween S. Kollet B. Neininger M. Herbst H. Vereecken
	Metadata Creator: A. Graf     Metadata Date: 2013-12-02 15:59:10     TR32 Topic: Other

[651] - Measurement depth effects on the apparent temperature sensitivity of soil respiration in field studies
	Keyword(s): Temperature, Temperature Sensitivity, CO2 Flux
	Creator(s): A. Graf L. Weihermüller J. A. Huisman M. Herbst J. Bauer H. Vereecken
	Metadata Creator: A. Graf     Metadata Date: 2013-12-02 15:50:13     TR32 Topic: Soil

[684] - Validation of a minimum microclimate disturbance chamber for net ecosystem flux measurements
	Keyword(s): CO2, Eddy Covariance, Evapotranspiration, H2O, Chamber
	Creator(s): A. Graf J. Werner M. Langensiepen A. van de Boer M. Schmidt M. Kupisch H. Vereecken
	Metadata Creator: A. Graf     Metadata Date: 2013-12-02 12:57:45     TR32 Topic: Vegetation

[659] - Within-Field Variability of Bare Soil Evaporation Derived from Eddy Covariance Measurements
	Keyword(s): Eddy Covariance, Soil Moisture, Exchange, Water
	Creator(s): J. Vanderborght A. Graf C. Steenpass B. Scharnagl N. Prolingheuer M. Herbst H. Hendricks-Franssen
	Metadata Creator: J. Vanderborght     Metadata Date: 2013-12-02 12:50:38     TR32 Topic: Soil

[96] - Eddy Covariance fluxes, Merken site 2009
	Keyword(s): 2m-Temperature, Agriculture, Boundary-Layer Stability , CO2
	Creator(s): A. Graf
	Metadata Creator: A. Graf     Metadata Date: 2010-05-19 10:28:43     TR32 Topic: Atmosphere

[72] - Soil respiration surveys during FLUXPAT Selhausen/Merken 2007/2008
	Keyword(s): Atmosphere, CO2 Flux, Soil Moisture, Soil Temperature
	Creator(s): A. Graf
	Metadata Creator: A. Graf     Metadata Date: 2009-12-16 15:10:11     TR32 Topic: Soil