Julia Pongratz
A5054849631- Atmospheric and Environmental Gas Dynamics
- Climate variability and models
- Plant Water Relations and Carbon Dynamics
- Climate Change Policy and Economics
- Atmospheric chemistry and aerosols
- Carbon Dioxide Capture Technologies
- Environmental Impact and Sustainability
- Forest Management and Policy
- Land Use and Ecosystem Services
- Atmospheric Ozone and Climate
- Remote Sensing in Agriculture
- Fire effects on ecosystems
- Meteorological Phenomena and Simulations
- Tree-ring climate responses
- Geology and Paleoclimatology Research
- Climate change impacts on agriculture
- Cryospheric studies and observations
- Climate change and permafrost
- Forest ecology and management
- Soil Carbon and Nitrogen Dynamics
- Climate Change and Health Impacts
- Hydrology and Watershed Management Studies
- Plant Ecology and Soil Science
- Energy, Environment, and Transportation Policies
- Science and Climate Studies
Max Planck Institute for Meteorology
2016-2025
Ludwig-Maximilians-Universität München
2006-2025
Karlsruhe Institute of Technology
2024
National Centre for Earth Observation
2024
University of Leeds
2024
CSIRO Oceans and Atmosphere
2023
Oeschger Centre for Climate Change Research
2021
University of Bern
2021
Université Libre de Bruxelles
2020
Hamburg Institut (Germany)
2018-2020
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere in a changing climate – “global budget” is important to better understand global cycle, support development policies, project future change. Here we describe synthesize data sets methodology quantify five major components budget uncertainties. Fossil CO2 (EFOS) are based on energy statistics cement production data, while from land-use...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere – “global budget” is important to better understand global cycle, support development climate policies, project future change. Here we describe data sets methodology quantify five major components budget uncertainties. Fossil CO2 (EFF) are based on energy statistics cement production data, while from land use change (ELUC), mainly...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere – “global budget” is important to better understand global cycle, support development climate policies, project future change. Here we describe data sets methodology quantify five major components budget uncertainties. Fossil CO2 (EFF) are based on energy statistics cement production data, while from land use land-use change (ELUC), mainly...
Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere in a changing climate is critical to better understand global cycle, support development policies, project future change. Here we describe synthesize datasets methodology quantify five major components budget uncertainties. Fossil CO2 (EFOS) are based on energy statistics cement production data, while from land-use change (ELUC), mainly...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere in a changing climate is critical to better understand global cycle, support development policies, project future change. Here we describe synthesize data sets methodologies quantify five major components budget uncertainties. Fossil CO2 (EFOS) are based on energy statistics cement production data, while from land-use change (ELUC), mainly...
A new release of the Max Planck Institute for Meteorology Earth System Model version 1.2 (MPI-ESM1.2) is presented. The development focused on correcting errors in and improving physical processes representation, as well computational performance, versatility, overall user friendliness. In addition to radiation aerosol parameterizations atmosphere, several relatively large, but partly compensating, coding model's cloud, convection, turbulence were corrected. representation land was refined...
Abstract. The net flux of carbon from land use and land-cover change (LULCC) accounted for 12.5% anthropogenic emissions 1990 to 2010. This is the most uncertain term in global budget, not only because uncertainties rates deforestation forestation, but also density lands actually undergoing change. Furthermore, there are differences approaches used determine that introduce variability into estimates ways difficult evaluate, all analyses consider same types management activities. Thirteen...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere – global budget is important to better understand cycle, support development climate policies, project future change. Here we describe data sets methodology quantify five major components uncertainties. CO2 from fossil fuels industry (EFF) are based on energy statistics cement production data, respectively, while land-use change (ELUC),...
Abstract. Human land use activities have resulted in large changes to the biogeochemical and biophysical properties of Earth's surface, with consequences for climate other ecosystem services. In future, are likely expand and/or intensify further meet growing demands food, fiber, energy. As part World Climate Research Program Coupled Model Intercomparison Project (CMIP6), international community has developed next generation advanced Earth system models (ESMs) estimate combined effects human...
Humans have substantially modified the Earth's land cover, especially by transforming natural ecosystems to agricultural areas. In preindustrial times, expansion of agriculture was probably dominant process which humankind altered Earth system, but little is known about its extent, timing, and spatial pattern. This study presents an approach reconstruct spatially explicit changes in global areas (cropland pasture) resulting cover over last millennium. The reconstruction based on published...
Abstract. FLUXNET comprises globally distributed eddy-covariance-based estimates of carbon fluxes between the biosphere and atmosphere. Since eddy covariance flux towers have a relatively small footprint are unevenly across world, upscaling observations is necessary to obtain global-scale biosphere–atmosphere exchange. Based on cross-consistency checks with atmospheric inversions, sun-induced fluorescence (SIF) dynamic global vegetation models (DGVMs), here we provide systematic assessment...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere in a changing climate is critical to better understand global cycle, support development policies, project future change. Here we describe synthesize data sets methodology quantify five major components budget uncertainties. Fossil CO2 (EFOS) are based on energy statistics cement production data, while from land-use change (ELUC), mainly...
Abstract. Results from the fully and biogeochemically coupled simulations in which CO2 increases at a rate of 1 % yr−1 (1pctCO2) its preindustrial value are analyzed to quantify magnitude carbon–concentration carbon–climate feedback parameters measure response ocean terrestrial carbon pools changes atmospheric concentration resulting change global climate, respectively. The results based on 11 comprehensive Earth system models most recent (sixth) Coupled Model Intercomparison Project (CMIP6)...
Abstract. Simulations of climate over the Last Millennium (850–1850 CE) have been incorporated into third phase Paleoclimate Modelling Intercomparison Project (PMIP3). The drivers this period are chiefly orbital, solar, volcanic, changes in land use/land cover and some variation greenhouse gas levels. While these effects can be easily defined, reconstructions volcanic use-related forcing more uncertain. We describe here approach taken defining scenarios used PMIP3, document discuss likely...
Abstract. Human land-use activities have resulted in large changes to the Earth's surface, with resulting implications for climate. In future, are likely expand and intensify further meet growing demands food, fiber, energy. The Land Use Model Intercomparison Project (LUMIP) aims advance understanding of impacts land-cover change (LULCC) on climate, specifically addressing following questions. (1) What effects LULCC climate biogeochemical cycling (past–future)? (2) land management surface...
In summer 2018, central and northern Europe were stricken by extreme drought heat (DH2018). The DH2018 differed from previous events in being preceded spring warming brightening, but moderate rainfall deficits, yet registering the fastest transition between wet winter conditions drought. Using 11 vegetation models, we show that promoted increased growth, which, turn, contributed to fast soil moisture depletion, amplifying We find regional asymmetries ecosystem carbon fluxes: (reduced) sink...
Abstract The effects of land-use changes on climate are assessed using specified-concentration simulations complementary to the representative concentration pathway 2.6 (RCP2.6) and RCP8.5 scenarios performed for phase 5 Coupled Model Intercomparison Project (CMIP5). This analysis focuses differences in land–atmosphere fluxes between ensemble averages with without by end twenty-first century. Even though common used, areas crops pastures specific each Earth system model (ESM). is due...