Wet tundra polygon centers and distance between polygon centroids on Samoylov Island, Lena Delta, Siberia, Russia, with links to shape files
Subgrid processes occur in various ecosystems and landscapes but, because of their small scale, they are not represented or poorly parameterized in climate models. These local heterogeneities are often important or even fundamental for energy and carbon balances. This is especially true for northern...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.818292 2024-09-15T18:17:40+00:00 Wet tundra polygon centers and distance between polygon centroids on Samoylov Island, Lena Delta, Siberia, Russia, with links to shape files Cresto-Aleina, Fabio Brovkin, Victor Muster, Sina Boike, Julia Kutzbach, Lars Sachs, Torsten Zuyev, Sergey LATITUDE: 72.373760 * LONGITUDE: 126.488430 2013 text/tab-separated-values, 4 data points https://doi.pangaea.de/10.1594/PANGAEA.818292 https://doi.org/10.1594/PANGAEA.818292 en eng PANGAEA Overview image, distance between polygon centroids (URI: hdl:10013/epic.41957.d003) https://doi.pangaea.de/10.1594/PANGAEA.818292 https://doi.org/10.1594/PANGAEA.818292 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Cresto-Aleina, Fabio; Brovkin, Victor; Muster, Sina; Boike, Julia; Kutzbach, Lars; Sachs, Torsten; Zuyev, Sergey (2013): A stochastic model for the polygonal tundra based on Poisson–Voronoi diagrams. Earth System Dynamics, 4(2), 187-198, https://doi.org/10.5194/esd-4-187-2013 Arctic Tundra AWI_PerDyn File content island MULT Multiple investigations Permafrost Research (Periglacial Dynamics) @ AWI Samoylov_Island_Cresto Samoylov Island Lena Delta Siberia Uniform resource locator/link to file dataset 2013 ftpangaea https://doi.org/10.1594/PANGAEA.81829210.5194/esd-4-187-2013 2024-07-24T02:31:32Z Subgrid processes occur in various ecosystems and landscapes but, because of their small scale, they are not represented or poorly parameterized in climate models. These local heterogeneities are often important or even fundamental for energy and carbon balances. This is especially true for northern peatlands and in particular for the polygonal tundra, where methane emissions are strongly influenced by spatial soil heterogeneities. We present a stochastic model for the surface topography of polygonal tundra using Poisson–Voronoi diagrams and we compare the results with available recent field studies. We analyze seasonal dynamics of water table variations and the landscape response under different scenarios of precipitation income. We upscale methane fluxes by using a simple idealized model for methane emission. Hydraulic interconnectivities and large-scale drainage may also be investigated through percolation properties and thresholds in the Voronoi graph. The model captures the main statistical characteristics of the landscape topography, such as polygon area and surface properties as well as the water balance. This approach enables us to statistically relate large-scale properties of the system to the main small-scale processes within the single polygons. Dataset lena delta permafrost Tundra Siberia PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(126.488430,126.488430,72.373760,72.373760) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Arctic Tundra AWI_PerDyn File content island MULT Multiple investigations Permafrost Research (Periglacial Dynamics) @ AWI Samoylov_Island_Cresto Samoylov Island Lena Delta Siberia Uniform resource locator/link to file |
spellingShingle |
Arctic Tundra AWI_PerDyn File content island MULT Multiple investigations Permafrost Research (Periglacial Dynamics) @ AWI Samoylov_Island_Cresto Samoylov Island Lena Delta Siberia Uniform resource locator/link to file Cresto-Aleina, Fabio Brovkin, Victor Muster, Sina Boike, Julia Kutzbach, Lars Sachs, Torsten Zuyev, Sergey Wet tundra polygon centers and distance between polygon centroids on Samoylov Island, Lena Delta, Siberia, Russia, with links to shape files |
topic_facet |
Arctic Tundra AWI_PerDyn File content island MULT Multiple investigations Permafrost Research (Periglacial Dynamics) @ AWI Samoylov_Island_Cresto Samoylov Island Lena Delta Siberia Uniform resource locator/link to file |
description |
Subgrid processes occur in various ecosystems and landscapes but, because of their small scale, they are not represented or poorly parameterized in climate models. These local heterogeneities are often important or even fundamental for energy and carbon balances. This is especially true for northern peatlands and in particular for the polygonal tundra, where methane emissions are strongly influenced by spatial soil heterogeneities. We present a stochastic model for the surface topography of polygonal tundra using Poisson–Voronoi diagrams and we compare the results with available recent field studies. We analyze seasonal dynamics of water table variations and the landscape response under different scenarios of precipitation income. We upscale methane fluxes by using a simple idealized model for methane emission. Hydraulic interconnectivities and large-scale drainage may also be investigated through percolation properties and thresholds in the Voronoi graph. The model captures the main statistical characteristics of the landscape topography, such as polygon area and surface properties as well as the water balance. This approach enables us to statistically relate large-scale properties of the system to the main small-scale processes within the single polygons. |
format |
Dataset |
author |
Cresto-Aleina, Fabio Brovkin, Victor Muster, Sina Boike, Julia Kutzbach, Lars Sachs, Torsten Zuyev, Sergey |
author_facet |
Cresto-Aleina, Fabio Brovkin, Victor Muster, Sina Boike, Julia Kutzbach, Lars Sachs, Torsten Zuyev, Sergey |
author_sort |
Cresto-Aleina, Fabio |
title |
Wet tundra polygon centers and distance between polygon centroids on Samoylov Island, Lena Delta, Siberia, Russia, with links to shape files |
title_short |
Wet tundra polygon centers and distance between polygon centroids on Samoylov Island, Lena Delta, Siberia, Russia, with links to shape files |
title_full |
Wet tundra polygon centers and distance between polygon centroids on Samoylov Island, Lena Delta, Siberia, Russia, with links to shape files |
title_fullStr |
Wet tundra polygon centers and distance between polygon centroids on Samoylov Island, Lena Delta, Siberia, Russia, with links to shape files |
title_full_unstemmed |
Wet tundra polygon centers and distance between polygon centroids on Samoylov Island, Lena Delta, Siberia, Russia, with links to shape files |
title_sort |
wet tundra polygon centers and distance between polygon centroids on samoylov island, lena delta, siberia, russia, with links to shape files |
publisher |
PANGAEA |
publishDate |
2013 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.818292 https://doi.org/10.1594/PANGAEA.818292 |
op_coverage |
LATITUDE: 72.373760 * LONGITUDE: 126.488430 |
long_lat |
ENVELOPE(126.488430,126.488430,72.373760,72.373760) |
genre |
lena delta permafrost Tundra Siberia |
genre_facet |
lena delta permafrost Tundra Siberia |
op_source |
Supplement to: Cresto-Aleina, Fabio; Brovkin, Victor; Muster, Sina; Boike, Julia; Kutzbach, Lars; Sachs, Torsten; Zuyev, Sergey (2013): A stochastic model for the polygonal tundra based on Poisson–Voronoi diagrams. Earth System Dynamics, 4(2), 187-198, https://doi.org/10.5194/esd-4-187-2013 |
op_relation |
Overview image, distance between polygon centroids (URI: hdl:10013/epic.41957.d003) https://doi.pangaea.de/10.1594/PANGAEA.818292 https://doi.org/10.1594/PANGAEA.818292 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.81829210.5194/esd-4-187-2013 |
_version_ |
1810455748272979968 |