Christian Bernhofer
A5011136047- Plant Water Relations and Carbon Dynamics
- Climate variability and models
- Hydrology and Watershed Management Studies
- Atmospheric and Environmental Gas Dynamics
- Meteorological Phenomena and Simulations
- Tree-ring climate responses
- Forest ecology and management
- Plant responses to elevated CO2
- Hydrology and Drought Analysis
- Precipitation Measurement and Analysis
- Cryospheric studies and observations
- Flood Risk Assessment and Management
- Remote Sensing in Agriculture
- Peatlands and Wetlands Ecology
- Climate change impacts on agriculture
- Urban Heat Island Mitigation
- Forest Management and Policy
- Hydrological Forecasting Using AI
- Fire effects on ecosystems
- Wind and Air Flow Studies
- Soil Carbon and Nitrogen Dynamics
- Soil Moisture and Remote Sensing
- Remote Sensing and LiDAR Applications
- Aeolian processes and effects
- Climate change and permafrost
Technische Universität Dresden
2015-2024
Norsk Hydro (Germany)
2011-2023
Institute of Hydrology of the Slovak Academy of Sciences
2004-2023
National Institute of Meteorology
2004-2023
Max Planck Institute for Meteorology
2008-2022
State Key Laboratory of Remote Sensing Science
2015
Beijing Normal University
2015
Hess (United States)
2011
University of Bayreuth
2003
Università degli Studi della Tuscia
2003
FLUXNET is a global network of micrometeorological flux measurement sites that measure the exchanges carbon dioxide, water vapor, and energy between biosphere atmosphere. At present over 140 are operating on long-term continuous basis. Vegetation under study includes temperate conifer broadleaved (deciduous evergreen) forests, tropical boreal crops, grasslands, chaparral, wetlands, tundra. Sites exist five continents their latitudinal distribution ranges from 70°N to 30°S. has several...
Abstract This paper discusses the advantages and disadvantages of different methods that separate net ecosystem exchange (NEE) into its major components, gross carbon uptake (GEP) respiration ( R eco ). In particular, we analyse effect extrapolation night‐time values daytime; this is usually done with a temperature response function derived from long‐term data sets. For analysis, used 16 one‐year‐long sets dioxide measurements European US‐American eddy covariance networks. These sites span...
Abstract. Eddy covariance technique to measure CO2, water and energy fluxes between biosphere atmosphere is widely spread used in various regional networks. Currently more than 250 eddy sites are active around the world measuring carbon exchange at high temporal resolution for different biomes climatic conditions. In this paper a new standardized set of corrections introduced uncertainties associated with these assessed eight forest Europe total 12 yearly datasets. The on two components GPP...
[1] We upscaled FLUXNET observations of carbon dioxide, water, and energy fluxes to the global scale using machine learning technique, model tree ensembles (MTE). trained MTE predict site-level gross primary productivity (GPP), terrestrial ecosystem respiration (TER), net exchange (NEE), latent (LE), sensible heat (H) based on remote sensing indices, climate meteorological data, information land use. applied MTEs generate flux fields at a 0.5° × spatial resolution monthly temporal from 1982...
Abstract The FLUXNET2015 dataset provides ecosystem-scale data on CO 2 , water, and energy exchange between the biosphere atmosphere, other meteorological biological measurements, from 212 sites around globe (over 1500 site-years, up to including year 2014). These sites, independently managed operated, voluntarily contributed their create global datasets. Data were quality controlled processed using uniform methods, improve consistency intercomparability across sites. is already being used...
Summary This paper presents CO 2 flux data from 18 forest ecosystems, studied in the European Union funded EUROFLUX project. Overall, mean annual gross primary productivity (GPP, total amount of carbon (C) fixed during photosynthesis) these forests was 1380 ± 330 gC m −2 y −1 (mean ±SD). On average, 80% GPP respired by autotrophs and heterotrophs released back into atmosphere (total ecosystem respiration, TER = 1100 260 ). Mean soil respiration (SR) 760 340 (55% 69% TER). Among investigated...
Abstract Terrestrial ecosystems sequester 2.1 Pg of atmospheric carbon annually. A large amount the terrestrial sink is realized by forests. However, considerable uncertainties remain regarding fate this over both short and long timescales. Relevant data to address these are being collected at many sites around world, but syntheses still sparse. To facilitate future synthesis activities, we have assembled a comprehensive global database for forest ecosystems, which includes budget variables...
Abstract The European CARBOEUROPE/FLUXNET monitoring sites, spatial remote sensing observations via the EOS‐MODIS sensor and ecosystem modelling provide independent complementary views on effect of 2003 heatwave biosphere's productivity carbon balance. In our analysis, these data streams consistently demonstrate a strong negative anomaly primary during summer 2003. FLUXNET eddy‐covariance indicate that drop in was not primarily caused by high temperatures (‘heat stress’) but rather...
Abstract Estimates of carbon leaching losses from different land use systems are few and their contribution to the net ecosystem balance is uncertain. We investigated dissolved organic (DOC), inorganic (DIC), methane (CH 4 ), at forests, grasslands, croplands across Europe. Biogenic contributions DIC were estimated by means its δ 13 C signature. Leaching biogenic was 8.3±4.9 g m −2 yr −1 for 24.1±7.2 14.6±4.8 croplands. DOC equalled 3.5±1.3 5.3±2.0 4.1±1.3 The average flux total 19.4±4.0 ....
Abstract Drought is typically associated with a lack of precipitation, whereas the contribution evapotranspiration and runoff to drought evolution not well understood. Here we use unique long‐term observations made in four headwater catchments central western Europe reconstruct storage anomalies study drivers anomaly during drought. We provide observational evidence for “drought‐paradox” that region: consistent significant increase episodes, which acts amplify anomalies. In contrast,...
The ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS) was launched to the International 29 June 2018 by National Aeronautics and Administration (NASA). primary science focus of ECOSTRESS is centered evapotranspiration (ET), which produced as Level-3 (L3) latent heat flux (LE) data products. These are generated from Level-2 land surface temperature emissivity product (L2_LSTE), in conjunction with ancillary atmospheric data. Here, we provide first validation...