Mathias Goeckede
A5053961564- Atmospheric and Environmental Gas Dynamics
- Climate change and permafrost
- Cryospheric studies and observations
- Methane Hydrates and Related Phenomena
- Peatlands and Wetlands Ecology
- Geology and Paleoclimatology Research
- Hydrocarbon exploration and reservoir analysis
- Geological Studies and Exploration
- Plant Water Relations and Carbon Dynamics
- Climate variability and models
- Arctic and Antarctic ice dynamics
- Hydrology and Watershed Management Studies
- Vehicle emissions and performance
- Indigenous Studies and Ecology
- Geophysics and Gravity Measurements
- Environmental Impact and Sustainability
- Energy Load and Power Forecasting
- Offshore Engineering and Technologies
- Reservoir Engineering and Simulation Methods
- Science and Climate Studies
- Soil and Unsaturated Flow
- Soil Geostatistics and Mapping
- Atmospheric Ozone and Climate
- Polar Research and Ecology
- Meteorological Phenomena and Simulations
Max Planck Institute for Biogeochemistry
2014-2025
European Space Agency
2024
Finnish Meteorological Institute
2024
University of California, Berkeley
2022
Lund University
2022
Oregon State University
2008-2009
University of Bayreuth
2004
Abstract This paper describes the formation of, and initial results for, a new FLUXNET coordination network for ecosystem-scale methane (CH 4 ) measurements at 60 sites globally, organized by Global Carbon Project in partnership with other initiatives regional flux tower networks. The objectives of effort are presented along an overview coverage eddy covariance (EC) CH comparing fluxes across sites, future research directions needs. Annual estimates net ranged from −0.2 ± 0.02 g C m –2 yr –1...
Abstract The regional variability in tundra and boreal carbon dioxide (CO 2 ) fluxes can be high, complicating efforts to quantify sink‐source patterns across the entire region. Statistical models are increasingly used predict (i.e., upscale) CO large spatial domains, but reliability of different modeling techniques, each with specifications assumptions, has not been assessed detail. Here, we compile eddy covariance chamber measurements annual growing season gross primary productivity (GPP),...
Abstract Phosphorus availability in soils is an important parameter influencing primary production terrestrial ecosystems. limitation exists many since a high proportion of soil phosphorus stored unavailable forms for plants, such as bound to iron minerals or stabilized organic matter. This spite having amount total phosphorus. The feasibility silicon mobilize from strong binding sites has been shown marine sediments but less well studied soils. Here we tested the effect on mobilization 143...
Abstract. Methane (CH4) emissions from natural landscapes constitute roughly half of global CH4 contributions to the atmosphere, yet large uncertainties remain in absolute magnitude and seasonality emission quantities drivers. Eddy covariance (EC) measurements flux are ideal for constraining ecosystem-scale due quasi-continuous high-temporal-resolution measurements, coincident carbon dioxide, water, energy lack ecosystem disturbance, increased availability datasets over last decade. Here, we...
Abstract While wetlands are the largest natural source of methane (CH 4 ) to atmosphere, they represent a large uncertainty in global CH budget due complex biogeochemical controls on dynamics. Here we present, our knowledge, first multi‐site synthesis how predictors fluxes (FCH4) freshwater vary across wetland types at diel, multiday (synoptic), and seasonal time scales. We used several statistical approaches (correlation analysis, generalized additive modeling, mutual information, random...
Abstract Significant progress in permafrost carbon science made over the past decades include identification of vast stocks, development new pan‐Arctic maps, an increase terrestrial measurement sites for CO 2 and methane fluxes, important factors affecting cycling, including vegetation changes, periods soil freezing thawing, wildfire, other disturbance events. Process‐based modeling studies now key elements cycling advances statistical inverse enhance understanding region C budgets. By...
Abstract The Arctic–Boreal Zone is rapidly warming, impacting its large soil carbon stocks. Here we use a new compilation of terrestrial ecosystem CO 2 fluxes, geospatial datasets and random forest models to show that although the was overall an increasing sink from 2001 2020 (mean ± standard deviation in net exchange, −548 140 Tg C yr −1 ; trend, −14 P < 0.001), more than 30% region source. Tundra regions may have already started function on average as sources, demonstrating shift...
Abstract Wetland methane (CH 4 ) emissions ( $${F}_{{{CH}}_{4}}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mrow> <mml:mi>F</mml:mi> </mml:mrow> <mml:mi>C</mml:mi> <mml:mi>H</mml:mi> <mml:mn>4</mml:mn> </mml:msub> </mml:math> are important in global carbon budgets and climate change assessments. Currently, projections rely on prescribed static temperature sensitivity that varies among biogeochemical models. Meta-analyses have proposed a consistent dependence...
Abstract Soils are warming as air temperatures rise across the Arctic and Boreal region concurrent with expansion of tall-statured shrubs trees in tundra. Changes vegetation structure function expected to alter soil thermal regimes, thereby modifying climate feedbacks related permafrost thaw carbon cycling. However, current understanding impacts on temperature is limited local or regional scales lacks generality necessary predict stability a pan-Arctic scale. Here we synthesize shallow...
Abstract. Past efforts to synthesize and quantify the magnitude change in carbon dioxide (CO2) fluxes terrestrial ecosystems across rapidly warming Arctic–boreal zone (ABZ) have provided valuable information but were limited their geographical temporal coverage. Furthermore, these been based on data aggregated over varying time periods, often with only minimal site ancillary data, thus limiting potential be used large-scale budget assessments. To bridge gaps, we developed a standardized...
Wetland CH4 emissions are among the most uncertain components of global budget. The complex nature wetland processes makes it challenging to identify causal relationships for improving our understanding and predictability emissions. In this study, we used flux measurements from eddy covariance towers (30 sites 4 wetlands types: bog, fen, marsh, wet tundra) construct a causality-constrained machine learning (ML) framework explain regulative factors capture at sub-seasonal scale. We found that...
Abstract Wetlands are responsible for 20%–31% of global methane (CH 4 ) emissions and account a large source uncertainty in the CH budget. Data‐driven upscaling fluxes from eddy covariance measurements can provide new independent bottom‐up estimates wetland emissions. Here, we develop six‐predictor random forest model (UpCH4), trained on 119 site‐years flux data 43 freshwater sites FLUXNET‐CH4 Community Product. Network patterns site‐level annual means mean seasonal cycles were reproduced...
Abstract. The identification of spatial soil moisture patterns is high importance for various applications in high-latitude permafrost regions but challenging with common remote sensing approaches due to landscape heterogeneity. Seasonal thawing and freezing near-surface lead subsidence–heave cycles the presence ground ice, which exhibit magnitudes typically less than 10 cm. Our investigations document higher Sentinel-1 InSAR (interferometric synthetic aperture radar) seasonal subsidence...
Abstract. Mapping in situ eddy covariance measurements of terrestrial land–atmosphere fluxes to the globe is a key method for diagnosing Earth system from data-driven perspective. We describe first global products (called X-BASE) newly implemented upscaling framework, FLUXCOM-X, representing an advancement previous generation FLUXCOM terms flexibility and technical capabilities. The X-BASE are comprised estimates CO2 net ecosystem exchange (NEE), gross primary productivity (GPP),...
Over the past two decades, numerous studies have emphasised importance of including organic matter (OM) in land surface models (LSMs) to accurately represent soil thermal and hydrological properties. This is particularly relevant Arctic regions, where organic-rich soils are widespread. Consequently, most LSMs incorporate parameterisations that account for OM effects, although these implementations often simplified. Recent advancements global datasets now enable more precise modelling...
Abstract. Nitrous oxide (N2O) is the third most important greenhouse gas, with its atmospheric concentration rising from 273 parts per billion (ppb) to 336 ppb since 1800, primarily due agricultural activities. However, nutrient-poor natural soils, including those in sub-Arctic, also emit and consume N2O. These soils have not been studied extensively, partly challenges reliably detecting low fluxes. Methodological limitations were largely influenced by available instrumentation; lack of...
The rapid thawing of Arctic permafrost is driving significant changes in both the hydrological and carbon cycles, with critical implications for surface wetness ecosystem processes. These are contributing to increased wetness, which, turn, accelerates degradation alters dynamics. Understanding feedback mechanisms governing these processes essential predicting future impacts, as seasonal variations directly influence stability fluxes. This study integrates in-situ measurements satellite-based...
Since eddy covariance (EC) flux towers are&#160;typically mounted&#160;within structured landscapes, interpreting EC data is complicated due to spatial heterogeneity, which may exhibit sources and sinks simultaneously. This complexity makes it challenging understand mechanisms controls determining budgets for the individual land cover types&#160;that make up entire ecosystem. Therefore, complicates scaling of results in space and/or time, or comparing fluxes under different...
Nitrous oxide (N&#8322;O) is a critical greenhouse gas, ranking third in prevalence and serving as the leading contributor to ozone depletion twenty-first century. Its global warming potential 298 times higher than that of carbon dioxide (CO&#8322;) over 100-year timeframe. Current estimates suggest N&#8322;O emissions range from 8.1 30.7 teragrams (Tg) per year. Alarmingly, about two-thirds these stem natural terrestrial sources, mainly related microbial processes soils. While...
Stratified turbulence is a prominent feature in the Arctic boundary layer, where land surface cooling during night may induce strong stable stratification. This process significantly alters transport dynamics of heat, momentum and trace gases, including greenhouse gases , which are critical to understanding carbon feedback processes. The warming at rate three four times faster than global average, threatening destabilize its permafrost reservoir, stores about 60% soil carbon&#8212;an...