Martin Heimann
Biographic Data
| ID | 5597357 |
|---|---|
| NAME | Martin Heimann |
| GIVEN NAMES | Martin |
| FAMILY NAME | Heimann |
| SIGNATURE | HEIMANN M |
| AFFILIATIONS | Max Planck Institute for Biogeochemistry |
| ORCID | 0000-0001-6296-5113 |
| VERIFIED | Yes |
| TOTAL WORKS | 6 |
| TOTAL CITATIONS | 24 |
| WORKS AS AUTHOR | 6 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1980 |
| LATEST PUBLICATION YEAR | 2017 |
| H-INDEX | 2 |
Contrasting and interacting changes in simulated spring and summer carbon cycle extremes in European ecosystems
Climate extremes have the potential to cause extreme responses of terrestrial ecosystem functioning. However, it is neither straightforward to quantify and predict extreme ecosystem responses, nor to attribute these responses to specific climate drivers. Here, we construct a factorial experiment based on a large ensemble of process-oriented ecosystem model simulations driven by a regional climate model (12 500 model years in 1985–2010) in six Eur…
The carbon budget of the northern cryosphere region
Modelling terrestrial vegetation dynamics and carbon cycling for an abrupt climatic change event
Abrupt climatic changes have occurred several times in the past, leading to large-scale modifications of vegetation patterns with important consequences for the global carbon cycle. Dynamic global vegetation models (DGVM) constitute an advanced tool for reconstructing past or predicting future shifts in vegetation distributions in response to climatic change on a global scale. The Lund-Potsdam-Jena (LPJ) model is a DGVM that also includes a compl…
Water isotope modeling in the Asian monsoon region
Low-Level Gas Proportional Counting in An Underground Laboratory
Results of measurements in an underground laboratory, 70m of water equivalent below surface, are given. Background values of proportional gas counters with volumes between 16cc and 1.5L are lower by a factor of 2—4.5 compared to the values in the previously used laboratory (7m w.e.). High counting gas pressures, up to 5 at CH 4 and up to 36 at P-10, enable the use of relatively small counters with correspondingly small background contributions fr…
C Variations Caused by Changes in the Global Carbon Cycle
A box-diffusion model for the carbon cycle is used to estimate the magnitude of 14 C variations caused by changes of reservoir sizes and exchange fluxes in the global carbon system. The influence of changes in atmospheric CO 2 concentration, biomass, CO 2 exchange rate between atmosphere and ocean, and ocean mixing is considered. Steady-state 14 C concentrations as well as the transients are calculated. For changing biomass, atmospheric CO 2 leve…
C Variations Caused by Changes in the Global Carbon Cycle
A box-diffusion model for the carbon cycle is used to estimate the magnitude of 14 C variations caused by changes of reservoir sizes and exchange fluxes in the global carbon system. The influence of changes in atmospheric CO 2 concentration, biomass, CO 2 exchange rate between atmosphere and ocean, and ocean mixing is considered. Steady-state 14 C concentrations as well as the transients are calculated. For changing biomass, atmospheric CO 2 leve…
Low-Level Gas Proportional Counting in An Underground Laboratory
Results of measurements in an underground laboratory, 70m of water equivalent below surface, are given. Background values of proportional gas counters with volumes between 16cc and 1.5L are lower by a factor of 2—4.5 compared to the values in the previously used laboratory (7m w.e.). High counting gas pressures, up to 5 at CH 4 and up to 36 at P-10, enable the use of relatively small counters with correspondingly small background contributions fr…
The carbon budget of the northern cryosphere region
Low-Level Gas Proportional Counting in An Underground Laboratory
Results of measurements in an underground laboratory, 70m of water equivalent below surface, are given. Background values of proportional gas counters with volumes between 16cc and 1.5L are lower by a factor of 2—4.5 compared to the values in the previously used laboratory (7m w.e.). High counting gas pressures, up to 5 at CH 4 and up to 36 at P-10, enable the use of relatively small counters with correspondingly small background contributions fr…
C Variations Caused by Changes in the Global Carbon Cycle
A box-diffusion model for the carbon cycle is used to estimate the magnitude of 14 C variations caused by changes of reservoir sizes and exchange fluxes in the global carbon system. The influence of changes in atmospheric CO 2 concentration, biomass, CO 2 exchange rate between atmosphere and ocean, and ocean mixing is considered. Steady-state 14 C concentrations as well as the transients are calculated. For changing biomass, atmospheric CO 2 leve…
Water isotope modeling in the Asian monsoon region
Modelling terrestrial vegetation dynamics and carbon cycling for an abrupt climatic change event
Abrupt climatic changes have occurred several times in the past, leading to large-scale modifications of vegetation patterns with important consequences for the global carbon cycle. Dynamic global vegetation models (DGVM) constitute an advanced tool for reconstructing past or predicting future shifts in vegetation distributions in response to climatic change on a global scale. The Lund-Potsdam-Jena (LPJ) model is a DGVM that also includes a compl…
The carbon budget of the northern cryosphere region
Contrasting and interacting changes in simulated spring and summer carbon cycle extremes in European ecosystems
Climate extremes have the potential to cause extreme responses of terrestrial ecosystem functioning. However, it is neither straightforward to quantify and predict extreme ecosystem responses, nor to attribute these responses to specific climate drivers. Here, we construct a factorial experiment based on a large ensemble of process-oriented ecosystem model simulations driven by a regional climate model (12 500 model years in 1985–2010) in six Eur…
Environmental Science (6 works) · Geology (6 works) · Atmospheric sciences (5 works) · Climatology (5 works) · Carbon cycle (4 works) · Ecology (4 works) · Ecosystem (4 works) · Oceanography (4 works) · Atmospheric and Environmental Gas Dynamics (3 works) · Climate change (3 works)