Presented at the American Geophysical Union Fall Meeting, San Francisco, CA, December 2015.

[Abstract]

Measurements of soil carbon dioxide efflux provide critical information on soil carbon balance. In light of increasing interest in monitoring carbon balance of northern soils, it is important that we develop new methodologies that are better suited to long-term, remote, and off-grid deployments. In this study, we describe a Forced Diffusion (FD) dynamic chamber, in which a gas permeable membrane passively regulates mixing of atmosphere and soil air in the chamber, in place of the active pumping system inside a regular dynamic efflux chamber system.

[Journal] [ResearchGate]

A better understanding of temporal and spatial variability of soil CO2 fluxes is essential to improve model predictions of soil effluxes. To accomplish that goal, high-frequency and long-term data sets for model development and validation are needed.

[Journal] [ResearchGate]

Presented at the American Geophysical Union, San Francisco, CA, Dec 2012 (using eosFD prototypes).

[Abstract (Not available)]

To help evaluate surface monitoring tools for Weyburn, it is important to establish ranges of natural variation, and signal to noise ratio (SNR) of MMV tools in their intended setting. This study took place at three sites, two of which were in the injection field. For six months, we measured parameters at various temporal scales from half-hourly (CO2 surface flux and meteorology), to monthly (soil gas CO2 and δ13CO2), to bi-monthly (soil gas CO142), to compare SNRs of promising MMV techniques for Weyburn.

[Journal] [ResearchGate]

A variety of chamber methodologies have been developed in an attempt to accurately measure the rate of soil CO2 respiration. However, the degree to which these methods perturb and misread the soil signal is poorly understood. Using a numerical three-dimensional (3D) soil-atmosphere diffusion model, we have undertaken a comprehensive and comparative study of existing static and dynamic chambers. Specifically, we are examining the 3D diffusion errors associated with each method and opportunities for correction.

[Journal] [ResearchGate]

The McMurdo Dry Valleys of Antarctica are home to unique soil microbial communities. Using a specially designed Forced Diffusion flux chamber, we logged the first year-round record of soil surface CO2 flux in Hidden Valley.

[Journal] [ResearchGate]

This paper examines the sources of uncertainty for the Forced Diffusion (FD) chamber soil respiration (Rs) measurement technique, and demonstrates a protocol for uncertainty quantification that could be appropriate with any soil flux technique.

[Journal] [ResearchGate]

Presented at the American Geophysical Union Fall Meeting, San Francisco, CA, December 2015.

[Presentation]

Presented at the Arctic Net Annual Meeting. Vancouver, BC, December 2015 (Using eosFD prototypes).

[Abstract]

Learn more about running the eosFD from solar power.

[Application Note]

Detailed technical specifications for the eosFD.

[Technical Specifications]

Learn more about the eosFD including selected technical specifications.

[Brochure]

Eddy covariance (EC) is an established technique that measures carbon exchange across the terrestrial-atmospheric interface, and is used to evaluate climate- and management-driven changes to carbon cycling across landscapes. Measurements of soil respiration (RS) at the ground level may provide opportunities for rich information that may help in the interpretation of EC data and ecosystem carbon dynamics.

[Blog]

A set of eosFD chambers are enjoying their new home as part of a Mitacs-funded graduate internship, co-installed alongside existing automated soil respiration chambers at the Howland Forest in central Maine.

[Blog]

So, you’ve got a set of chambers and you want to measure greenhouse gas emissions such as CO2 flux from a site. Now what? You want to be able to accurately comment on C budget by quantifying the soil CO2 flux at a site, but there is an impressive (and daunting?) level of spatial and temporal variability in soil CO2 flux. Important questions arise: How many chambers do I need? Where do I place them? How often should I sample? First, it is important to consider the factors that influence soil CO2 emissions.

[Blog]

Presented at the American Geophysical Union Fall Meeting, San Francisco, CA, December 2016.

[Abstract]

Revisiting the partitioning of net ecosystem exchange of CO2 into photosynthesis and respiration
The partitioning of net ecosystem exchange of CO2 (NEE) into photosynthesis and respiration can be challenging and is often associated with assumptions that yield unknown amounts of uncertainty …

[Journal] [ResearchGate]

Dr. Kim and his collaborators are interested in understanding the controls on soil respiration in Arctic ecosystems to understand how these controls might affect the long term carbon balance of Arctic soils, especially considering global warming, which is projected to affect Arctic regions most.

[Blog]

Soil is a significant source of CO2 emission to the atmosphere, and this process is accelerating at high latitudes due to rapidly changing climates. To investigate the sensitivity of soil CO2 emissions.

[Journal] [ResearchGate]

Presented at the American Geophysical Union Fall Meeting, San Francisco, CA, December 2016.

[Presentation]

Learn more about partitioning ecosystem respiration and the eosFD deployment in Zackenberg, Greenland.

[Eosense Blog]

Measurements of soil carbon dioxide efflux provide critical information on soil carbon balance. In light of increasing interest in monitoring carbon balance of northern soils, it is important that we develop new methodologies that are better suited to long-term, remote, and off-grid deployments. In this study, we describe a Forced Diffusion (FD) dynamic chamber, in which a gas permeable membrane passively regulates mixing of atmosphere and soil air in the chamber, in place of the active pumping system inside a regular dynamic efflux chamber system.

[Journal] [ResearchGate]

A better understanding of temporal and spatial variability of soil CO2 fluxes is essential to improve model predictions of soil effluxes. To accomplish that goal, high-frequency and long-term data sets for model development and validation are needed.

[Journal] [ResearchGate]

Presented at the American Geophysical Union, San Francisco, CA, Dec 2012 (using eosFD prototypes).

[Abstract (Not available)]

To help evaluate surface monitoring tools for Weyburn, it is important to establish ranges of natural variation, and signal to noise ratio (SNR) of MMV tools in their intended setting. This study took place at three sites, two of which were in the injection field. For six months, we measured parameters at various temporal scales from half-hourly (CO2 surface flux and meteorology), to monthly (soil gas CO2 and δ13CO2), to bi-monthly (soil gas CO142), to compare SNRs of promising MMV techniques for Weyburn.

[Journal] [ResearchGate]

A variety of chamber methodologies have been developed in an attempt to accurately measure the rate of soil CO2 respiration. However, the degree to which these methods perturb and misread the soil signal is poorly understood. Using a numerical three-dimensional (3D) soil-atmosphere diffusion model, we have undertaken a comprehensive and comparative study of existing static and dynamic chambers. Specifically, we are examining the 3D diffusion errors associated with each method and opportunities for correction.

[Journal] [ResearchGate]

The McMurdo Dry Valleys of Antarctica are home to unique soil microbial communities. Using a specially designed Forced Diffusion flux chamber, we logged the first year-round record of soil surface CO2 flux in Hidden Valley.

[Journal] [ResearchGate]

This paper examines the sources of uncertainty for the Forced Diffusion (FD) chamber soil respiration (Rs) measurement technique, and demonstrates a protocol for uncertainty quantification that could be appropriate with any soil flux technique.

[Journal] [ResearchGate]

Presented at the American Geophysical Union Fall Meeting, San Francisco, CA, December 2015.

[Presentation]

Presented at the Arctic Net Annual Meeting. Vancouver, BC, December 2015 (Using eosFD prototypes).

[Abstract]

Learn more about running the eosFD from solar power.

[Application Note]

Detailed technical specifications for the eosFD.

[Technical Specifications]

Learn more about the eosFD including selected technical specifications.

[Brochure]

Eddy covariance (EC) is an established technique that measures carbon exchange across the terrestrial-atmospheric interface, and is used to evaluate climate- and management-driven changes to carbon cycling across landscapes. Measurements of soil respiration (RS) at the ground level may provide opportunities for rich information that may help in the interpretation of EC data and ecosystem carbon dynamics.

[Blog]

A set of eosFD chambers are enjoying their new home as part of a Mitacs-funded graduate internship, co-installed alongside existing automated soil respiration chambers at the Howland Forest in central Maine.

[Blog]

So, you’ve got a set of chambers and you want to measure greenhouse gas emissions such as CO2 flux from a site. Now what? You want to be able to accurately comment on C budget by quantifying the soil CO2 flux at a site, but there is an impressive (and daunting?) level of spatial and temporal variability in soil CO2 flux. Important questions arise: How many chambers do I need? Where do I place them? How often should I sample? First, it is important to consider the factors that influence soil CO2 emissions.

[Blog]

Presented at the American Geophysical Union Fall Meeting, San Francisco, CA, December 2016.

[Abstract]

Revisiting the partitioning of net ecosystem exchange of CO2 into photosynthesis and respiration
The partitioning of net ecosystem exchange of CO2 (NEE) into photosynthesis and respiration can be challenging and is often associated with assumptions that yield unknown amounts of uncertainty …

[Journal] [ResearchGate]

Dr. Kim and his collaborators are interested in understanding the controls on soil respiration in Arctic ecosystems to understand how these controls might affect the long term carbon balance of Arctic soils, especially considering global warming, which is projected to affect Arctic regions most.

[Blog]

Soil is a significant source of CO2 emission to the atmosphere, and this process is accelerating at high latitudes due to rapidly changing climates. To investigate the sensitivity of soil CO2 emissions.

[Journal] [ResearchGate]

Presented at the American Geophysical Union Fall Meeting, San Francisco, CA, December 2016.

[Presentation]

Learn more about partitioning ecosystem respiration and the eosFD deployment in Zackenberg, Greenland.

[Eosense Blog]

Measurements of soil carbon dioxide efflux provide critical information on soil carbon balance. In light of increasing interest in monitoring carbon balance of northern soils, it is important that we develop new methodologies that are better suited to long-term, remote, and off-grid deployments. In this study, we describe a Forced Diffusion (FD) dynamic chamber, in which a gas permeable membrane passively regulates mixing of atmosphere and soil air in the chamber, in place of the active pumping system inside a regular dynamic efflux chamber system.

[Journal] [ResearchGate]

A better understanding of temporal and spatial variability of soil CO2 fluxes is essential to improve model predictions of soil effluxes. To accomplish that goal, high-frequency and long-term data sets for model development and validation are needed.

[Journal] [ResearchGate]

Presented at the American Geophysical Union, San Francisco, CA, Dec 2012 (using eosFD prototypes).

[Abstract (Not available)]

To help evaluate surface monitoring tools for Weyburn, it is important to establish ranges of natural variation, and signal to noise ratio (SNR) of MMV tools in their intended setting. This study took place at three sites, two of which were in the injection field. For six months, we measured parameters at various temporal scales from half-hourly (CO2 surface flux and meteorology), to monthly (soil gas CO2 and δ13CO2), to bi-monthly (soil gas CO142), to compare SNRs of promising MMV techniques for Weyburn.

[Journal] [ResearchGate]

A variety of chamber methodologies have been developed in an attempt to accurately measure the rate of soil CO2 respiration. However, the degree to which these methods perturb and misread the soil signal is poorly understood. Using a numerical three-dimensional (3D) soil-atmosphere diffusion model, we have undertaken a comprehensive and comparative study of existing static and dynamic chambers. Specifically, we are examining the 3D diffusion errors associated with each method and opportunities for correction.

[Journal] [ResearchGate]

The McMurdo Dry Valleys of Antarctica are home to unique soil microbial communities. Using a specially designed Forced Diffusion flux chamber, we logged the first year-round record of soil surface CO2 flux in Hidden Valley.

[Journal] [ResearchGate]

Presented at the American Geophysical Union Fall Meeting, San Francisco, CA, December 2015.

[Presentation]

Presented at the Arctic Net Annual Meeting. Vancouver, BC, December 2015 (Using eosFD prototypes).

[Abstract]

Learn more about running the eosFD from solar power.

[Application Note]

Detailed technical specifications for the eosFD.

[Technical Specifications]

Learn more about the eosFD including selected technical specifications.

[Brochure]

Eddy covariance (EC) is an established technique that measures carbon exchange across the terrestrial-atmospheric interface, and is used to evaluate climate- and management-driven changes to carbon cycling across landscapes. Measurements of soil respiration (RS) at the ground level may provide opportunities for rich information that may help in the interpretation of EC data and ecosystem carbon dynamics.

[Blog]

A set of eosFD chambers are enjoying their new home as part of a Mitacs-funded graduate internship, co-installed alongside existing automated soil respiration chambers at the Howland Forest in central Maine.

[Blog]

So, you’ve got a set of chambers and you want to measure greenhouse gas emissions such as CO2 flux from a site. Now what? You want to be able to accurately comment on C budget by quantifying the soil CO2 flux at a site, but there is an impressive (and daunting?) level of spatial and temporal variability in soil CO2 flux. Important questions arise: How many chambers do I need? Where do I place them? How often should I sample? First, it is important to consider the factors that influence soil CO2 emissions.

[Blog]

Presented at the American Geophysical Union Fall Meeting, San Francisco, CA, December 2016.

[Abstract]

Revisiting the partitioning of net ecosystem exchange of CO2 into photosynthesis and respiration
The partitioning of net ecosystem exchange of CO2 (NEE) into photosynthesis and respiration can be challenging and is often associated with assumptions that yield unknown amounts of uncertainty …

[Journal] [ResearchGate]

Dr. Kim and his collaborators are interested in understanding the controls on soil respiration in Arctic ecosystems to understand how these controls might affect the long term carbon balance of Arctic soils, especially considering global warming, which is projected to affect Arctic regions most.

[Blog]

Soil is a significant source of CO2 emission to the atmosphere, and this process is accelerating at high latitudes due to rapidly changing climates. To investigate the sensitivity of soil CO2 emissions.

[Journal] [ResearchGate]

Presented at the American Geophysical Union Fall Meeting, San Francisco, CA, December 2016.

[Presentation]

Learn more about partitioning ecosystem respiration and the eosFD deployment in Zackenberg, Greenland.

[Eosense Blog]

Measurements of soil carbon dioxide efflux provide critical information on soil carbon balance. In light of increasing interest in monitoring carbon balance of northern soils, it is important that we develop new methodologies that are better suited to long-term, remote, and off-grid deployments. In this study, we describe a Forced Diffusion (FD) dynamic chamber, in which a gas permeable membrane passively regulates mixing of atmosphere and soil air in the chamber, in place of the active pumping system inside a regular dynamic efflux chamber system.

[Journal] [ResearchGate]

A better understanding of temporal and spatial variability of soil CO2 fluxes is essential to improve model predictions of soil effluxes. To accomplish that goal, high-frequency and long-term data sets for model development and validation are needed.

[Journal] [ResearchGate]

Presented at the American Geophysical Union, San Francisco, CA, Dec 2012 (using eosFD prototypes).

[Abstract (Not available)]

To help evaluate surface monitoring tools for Weyburn, it is important to establish ranges of natural variation, and signal to noise ratio (SNR) of MMV tools in their intended setting. This study took place at three sites, two of which were in the injection field. For six months, we measured parameters at various temporal scales from half-hourly (CO2 surface flux and meteorology), to monthly (soil gas CO2 and δ13CO2), to bi-monthly (soil gas CO142), to compare SNRs of promising MMV techniques for Weyburn.

[Journal] [ResearchGate]

A variety of chamber methodologies have been developed in an attempt to accurately measure the rate of soil CO2 respiration. However, the degree to which these methods perturb and misread the soil signal is poorly understood. Using a numerical three-dimensional (3D) soil-atmosphere diffusion model, we have undertaken a comprehensive and comparative study of existing static and dynamic chambers. Specifically, we are examining the 3D diffusion errors associated with each method and opportunities for correction.

[Journal] [ResearchGate]

The McMurdo Dry Valleys of Antarctica are home to unique soil microbial communities. Using a specially designed Forced Diffusion flux chamber, we logged the first year-round record of soil surface CO2 flux in Hidden Valley.

[Journal] [ResearchGate]

This paper examines the sources of uncertainty for the Forced Diffusion (FD) chamber soil respiration (Rs) measurement technique, and demonstrates a protocol for uncertainty quantification that could be appropriate with any soil flux technique.

[Journal] [ResearchGate]

Presented at the American Geophysical Union Fall Meeting, San Francisco, CA, December 2015.

[Presentation]

Presented at the Arctic Net Annual Meeting. Vancouver, BC, December 2015 (Using eosFD prototypes).

[Abstract]

Learn more about running the eosFD from solar power.

[Application Note]

Detailed technical specifications for the eosFD.

[Technical Specifications]

Learn more about the eosFD including selected technical specifications.

[Brochure]

Eddy covariance (EC) is an established technique that measures carbon exchange across the terrestrial-atmospheric interface, and is used to evaluate climate- and management-driven changes to carbon cycling across landscapes. Measurements of soil respiration (RS) at the ground level may provide opportunities for rich information that may help in the interpretation of EC data and ecosystem carbon dynamics.

[Blog]

A set of eosFD chambers are enjoying their new home as part of a Mitacs-funded graduate internship, co-installed alongside existing automated soil respiration chambers at the Howland Forest in central Maine.

[Blog]

So, you’ve got a set of chambers and you want to measure greenhouse gas emissions such as CO2 flux from a site. Now what? You want to be able to accurately comment on C budget by quantifying the soil CO2 flux at a site, but there is an impressive (and daunting?) level of spatial and temporal variability in soil CO2 flux. Important questions arise: How many chambers do I need? Where do I place them? How often should I sample? First, it is important to consider the factors that influence soil CO2 emissions.

[Blog]

Presented at the American Geophysical Union Fall Meeting, San Francisco, CA, December 2016.

[Abstract]

Revisiting the partitioning of net ecosystem exchange of CO2 into photosynthesis and respiration
The partitioning of net ecosystem exchange of CO2 (NEE) into photosynthesis and respiration can be challenging and is often associated with assumptions that yield unknown amounts of uncertainty …

[Journal] [ResearchGate]

Dr. Kim and his collaborators are interested in understanding the controls on soil respiration in Arctic ecosystems to understand how these controls might affect the long term carbon balance of Arctic soils, especially considering global warming, which is projected to affect Arctic regions most.

[Blog]

Soil is a significant source of CO2 emission to the atmosphere, and this process is accelerating at high latitudes due to rapidly changing climates. To investigate the sensitivity of soil CO2 emissions.

[Journal] [ResearchGate]

Presented at the American Geophysical Union Fall Meeting, San Francisco, CA, December 2016.

[Presentation]

Learn more about partitioning ecosystem respiration and the eosFD deployment in Zackenberg, Greenland.

[Eosense Blog]