Quantifying Dissolved Organic Carbon Dynamics Using a Three-Dimensional Terrestrial Ecosystem Model at High Spatial-Temporal Resolutions [version 1.0]
Arctic terrestrial ecosystems are very sensitive to the global climate change due to the large storage of soil organic carbon and the presence of snow, glacier and permafrost, which respond directly to near surface air temperature that has warmed in the Arctic by almost twice as much as the global a...
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ftpurdueunivpurr:https://doi.org/10.4231/7YY6-HQ02 2023-11-12T04:11:24+01:00 Quantifying Dissolved Organic Carbon Dynamics Using a Three-Dimensional Terrestrial Ecosystem Model at High Spatial-Temporal Resolutions [version 1.0] Chang Liao Laodong Guo Qianlai Zhuang Ruby Leung 2019-12-02T03:58:26Z https://doi.org/10.4231/7YY6-HQ02 unknown https://doi.org/10.4231/7YY6-HQ02 Alaska Arctic Region Biogeochemistry C Carbon Cycle Climate Change Earth and Atmospheric Sciences ECO3D Ecosystem Hydrology LSM Permafrost TEM publications:dataset 2019 ftpurdueunivpurr https://doi.org/10.4231/7YY6-HQ02 2023-10-30T09:32:16Z Arctic terrestrial ecosystems are very sensitive to the global climate change due to the large storage of soil organic carbon and the presence of snow, glacier and permafrost, which respond directly to near surface air temperature that has warmed in the Arctic by almost twice as much as the global average. These ecosystems play a significant role in affecting regional and global carbon cycling, which have been traditionally quantified using biogeochemical models that have not explicitly considered the loss of carbon due to lateral flow of water from land to aquatic ecosystems. Building upon an extant spatially-distributed hydrological model and a process-based biogeochemical model, we have developed a three-dimensional terrestrial ecosystem model (ECO3D) to elucidate how lateral water flow has impacted the regional dissolved organic carbon (DOC) dynamics in the Tanana Flats Basin in central Alaska. The model explicitly simulates the production, consumption and transport of DOC. Both in-situ observational data and remote sensing-based products were used to calibrate and validate the model. Our simulations show that: (1) plant-litter DOC leaching exerts significant controls on soil DOC concentration during precipitation and snowmelt events; (2) lateral transport plays an important role in affecting regional DOC dynamics; and (3) DOC export to the Tanana River is approximately 9.6 × 106 kg C yr-1. This study provides a modeling framework to adequately quantify the Arctic land ecosystem carbon budget by considering the lateral transport of carbon affected by permafrost degradation. The quantification of the lateral carbon fluxes will also improve future carbon cycle modeling for Arctic aquatic ecosystems. Dataset Arctic Climate change glacier permafrost Alaska Purdue University Research Repository Arctic |
institution |
Open Polar |
collection |
Purdue University Research Repository |
op_collection_id |
ftpurdueunivpurr |
language |
unknown |
topic |
Alaska Arctic Region Biogeochemistry C Carbon Cycle Climate Change Earth and Atmospheric Sciences ECO3D Ecosystem Hydrology LSM Permafrost TEM |
spellingShingle |
Alaska Arctic Region Biogeochemistry C Carbon Cycle Climate Change Earth and Atmospheric Sciences ECO3D Ecosystem Hydrology LSM Permafrost TEM Chang Liao Laodong Guo Qianlai Zhuang Ruby Leung Quantifying Dissolved Organic Carbon Dynamics Using a Three-Dimensional Terrestrial Ecosystem Model at High Spatial-Temporal Resolutions [version 1.0] |
topic_facet |
Alaska Arctic Region Biogeochemistry C Carbon Cycle Climate Change Earth and Atmospheric Sciences ECO3D Ecosystem Hydrology LSM Permafrost TEM |
description |
Arctic terrestrial ecosystems are very sensitive to the global climate change due to the large storage of soil organic carbon and the presence of snow, glacier and permafrost, which respond directly to near surface air temperature that has warmed in the Arctic by almost twice as much as the global average. These ecosystems play a significant role in affecting regional and global carbon cycling, which have been traditionally quantified using biogeochemical models that have not explicitly considered the loss of carbon due to lateral flow of water from land to aquatic ecosystems. Building upon an extant spatially-distributed hydrological model and a process-based biogeochemical model, we have developed a three-dimensional terrestrial ecosystem model (ECO3D) to elucidate how lateral water flow has impacted the regional dissolved organic carbon (DOC) dynamics in the Tanana Flats Basin in central Alaska. The model explicitly simulates the production, consumption and transport of DOC. Both in-situ observational data and remote sensing-based products were used to calibrate and validate the model. Our simulations show that: (1) plant-litter DOC leaching exerts significant controls on soil DOC concentration during precipitation and snowmelt events; (2) lateral transport plays an important role in affecting regional DOC dynamics; and (3) DOC export to the Tanana River is approximately 9.6 × 106 kg C yr-1. This study provides a modeling framework to adequately quantify the Arctic land ecosystem carbon budget by considering the lateral transport of carbon affected by permafrost degradation. The quantification of the lateral carbon fluxes will also improve future carbon cycle modeling for Arctic aquatic ecosystems. |
format |
Dataset |
author |
Chang Liao Laodong Guo Qianlai Zhuang Ruby Leung |
author_facet |
Chang Liao Laodong Guo Qianlai Zhuang Ruby Leung |
author_sort |
Chang Liao |
title |
Quantifying Dissolved Organic Carbon Dynamics Using a Three-Dimensional Terrestrial Ecosystem Model at High Spatial-Temporal Resolutions [version 1.0] |
title_short |
Quantifying Dissolved Organic Carbon Dynamics Using a Three-Dimensional Terrestrial Ecosystem Model at High Spatial-Temporal Resolutions [version 1.0] |
title_full |
Quantifying Dissolved Organic Carbon Dynamics Using a Three-Dimensional Terrestrial Ecosystem Model at High Spatial-Temporal Resolutions [version 1.0] |
title_fullStr |
Quantifying Dissolved Organic Carbon Dynamics Using a Three-Dimensional Terrestrial Ecosystem Model at High Spatial-Temporal Resolutions [version 1.0] |
title_full_unstemmed |
Quantifying Dissolved Organic Carbon Dynamics Using a Three-Dimensional Terrestrial Ecosystem Model at High Spatial-Temporal Resolutions [version 1.0] |
title_sort |
quantifying dissolved organic carbon dynamics using a three-dimensional terrestrial ecosystem model at high spatial-temporal resolutions [version 1.0] |
publishDate |
2019 |
url |
https://doi.org/10.4231/7YY6-HQ02 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change glacier permafrost Alaska |
genre_facet |
Arctic Climate change glacier permafrost Alaska |
op_relation |
https://doi.org/10.4231/7YY6-HQ02 |
op_doi |
https://doi.org/10.4231/7YY6-HQ02 |
_version_ |
1782330524537192448 |