Upscaling methane emission hotspots in boreal peatlands
Upscaling the properties and effects of small-scale surface heterogeneities to larger scales is a challenging issue in land surface modeling. We developed a novel approach to upscale local methane emissions in a boreal peatland from the micro-topographic scale to the landscape scale. We based this n...
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2016-03-01
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Series: | Geoscientific Model Development |
Online Access: | http://www.geosci-model-dev.net/9/915/2016/gmd-9-915-2016.pdf |
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doaj-46f25deddecc4fe1ae4e6e2c3bc30cc02020-11-24T22:36:00ZengCopernicus PublicationsGeoscientific Model Development1991-959X1991-96032016-03-019291592610.5194/gmd-9-915-2016Upscaling methane emission hotspots in boreal peatlandsF. Cresto Aleina0B. R. K. Runkle1T. Brücher2T. Kleinen3V. Brovkin4Max Planck Institute for Meteorology, Hamburg, GermanyInstitute of Soil Science, Center for Earth System Research and Sustainability, Universität Hamburg, Hamburg, GermanyMax Planck Institute for Meteorology, Hamburg, GermanyMax Planck Institute for Meteorology, Hamburg, GermanyMax Planck Institute for Meteorology, Hamburg, GermanyUpscaling the properties and effects of small-scale surface heterogeneities to larger scales is a challenging issue in land surface modeling. We developed a novel approach to upscale local methane emissions in a boreal peatland from the micro-topographic scale to the landscape scale. We based this new parameterization on the analysis of the water table pattern generated by the Hummock–Hollow model, a micro-topography resolving model for peatland hydrology. We introduce this parameterization of methane hotspots in a global model-like version of the Hummock–Hollow model that underestimates methane emissions. We tested the robustness of the parameterization by simulating methane emissions for the next century, forcing the model with three different RCP scenarios. The Hotspot parameterization, despite being calibrated for the 1976–2005 climatology, mimics the output of the micro-topography resolving model for all the simulated scenarios. The new approach bridges the scale gap of methane emissions between this version of the model and the configuration explicitly resolving micro-topography.http://www.geosci-model-dev.net/9/915/2016/gmd-9-915-2016.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
F. Cresto Aleina B. R. K. Runkle T. Brücher T. Kleinen V. Brovkin |
spellingShingle |
F. Cresto Aleina B. R. K. Runkle T. Brücher T. Kleinen V. Brovkin Upscaling methane emission hotspots in boreal peatlands Geoscientific Model Development |
author_facet |
F. Cresto Aleina B. R. K. Runkle T. Brücher T. Kleinen V. Brovkin |
author_sort |
F. Cresto Aleina |
title |
Upscaling methane emission hotspots in boreal peatlands |
title_short |
Upscaling methane emission hotspots in boreal peatlands |
title_full |
Upscaling methane emission hotspots in boreal peatlands |
title_fullStr |
Upscaling methane emission hotspots in boreal peatlands |
title_full_unstemmed |
Upscaling methane emission hotspots in boreal peatlands |
title_sort |
upscaling methane emission hotspots in boreal peatlands |
publisher |
Copernicus Publications |
series |
Geoscientific Model Development |
issn |
1991-959X 1991-9603 |
publishDate |
2016-03-01 |
description |
Upscaling the properties and effects of small-scale surface heterogeneities
to larger scales is a challenging issue in land surface modeling. We
developed a novel approach to upscale local methane emissions in a boreal
peatland from the micro-topographic scale to the landscape scale. We based
this new parameterization on the analysis of the water table pattern
generated by the Hummock–Hollow model, a micro-topography resolving model
for peatland hydrology. We introduce this parameterization of methane
hotspots in a global model-like version of the Hummock–Hollow model that
underestimates methane emissions. We tested the robustness of the
parameterization by simulating methane emissions for the next century,
forcing the model with three different RCP scenarios. The
Hotspot
parameterization, despite being calibrated for the 1976–2005 climatology,
mimics the output of the micro-topography resolving model for all the
simulated scenarios. The new approach bridges the scale gap of methane
emissions between this version of the model and the configuration explicitly
resolving micro-topography. |
url |
http://www.geosci-model-dev.net/9/915/2016/gmd-9-915-2016.pdf |
work_keys_str_mv |
AT fcrestoaleina upscalingmethaneemissionhotspotsinborealpeatlands AT brkrunkle upscalingmethaneemissionhotspotsinborealpeatlands AT tbrucher upscalingmethaneemissionhotspotsinborealpeatlands AT tkleinen upscalingmethaneemissionhotspotsinborealpeatlands AT vbrovkin upscalingmethaneemissionhotspotsinborealpeatlands |
_version_ |
1725721676907282432 |