Effects of land surface model resolution on fluxes and soil state in the Arctic
Arctic land is characterized by a high surface and subsurface heterogeneity on different scales. However, the effects of land surface model resolution on fluxes and soil state variables in the Arctic have never been systematically studied, even though smaller scale heterogeneities are resolved in hi...
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Online Access: | https://doi.org/10.1088/1748-9326/ad6019 https://doaj.org/article/4e2df50108204ad4b12911c7f118aecb |
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ftdoajarticles:oai:doaj.org/article:4e2df50108204ad4b12911c7f118aecb 2024-09-15T18:30:11+00:00 Effects of land surface model resolution on fluxes and soil state in the Arctic Meike Schickhoff Philipp de Vrese Annett Bartsch Barbara Widhalm Victor Brovkin 2024-01-01T00:00:00Z https://doi.org/10.1088/1748-9326/ad6019 https://doaj.org/article/4e2df50108204ad4b12911c7f118aecb EN eng IOP Publishing https://doi.org/10.1088/1748-9326/ad6019 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/ad6019 1748-9326 https://doaj.org/article/4e2df50108204ad4b12911c7f118aecb Environmental Research Letters, Vol 19, Iss 10, p 104032 (2024) land surface modeling permafrost high resolution Arctic Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 article 2024 ftdoajarticles https://doi.org/10.1088/1748-9326/ad6019 2024-09-02T15:34:36Z Arctic land is characterized by a high surface and subsurface heterogeneity on different scales. However, the effects of land surface model resolution on fluxes and soil state variables in the Arctic have never been systematically studied, even though smaller scale heterogeneities are resolved in high-resolution land boundary condition datasets. Here, we compare 210 km and 5 km setups of the land surface model JSBACH3 for an idealized case study in eastern Siberia to investigate the effects of high versus low-resolution land boundary conditions on simulating the interactions of soil physics, hydrology and vegetation. We show for the first time that there are differences in the spatial averages of the simulated fluxes and soil state variables between resolution setups. Most differences are small in the summer mean, but larger within individual months. Heterogeneous soil properties induce large parts of the differences while vegetation characteristics play a minor role. Active layer depth shows a statistically significant increase of +20% in the 5 km setup relative to the 210 km setup for the summer mean and +43% for August. The differences are due to the nonlinear vertical discretization of the soil column amplifying the impact of the heterogeneous distributions of soil organic matter content and supercooled water. Resolution-induced differences in evaporation fluxes amount to +43% in July and are statistically significant. Our results show that spatial resolution significantly affects model outcomes due to nonlinear processes in heterogenous land surfaces. This suggests that resolution needs to be accounted in simulations of land surface models in the Arctic. Article in Journal/Newspaper permafrost Siberia Directory of Open Access Journals: DOAJ Articles Environmental Research Letters 19 10 104032 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
land surface modeling permafrost high resolution Arctic Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
spellingShingle |
land surface modeling permafrost high resolution Arctic Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 Meike Schickhoff Philipp de Vrese Annett Bartsch Barbara Widhalm Victor Brovkin Effects of land surface model resolution on fluxes and soil state in the Arctic |
topic_facet |
land surface modeling permafrost high resolution Arctic Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Science Q Physics QC1-999 |
description |
Arctic land is characterized by a high surface and subsurface heterogeneity on different scales. However, the effects of land surface model resolution on fluxes and soil state variables in the Arctic have never been systematically studied, even though smaller scale heterogeneities are resolved in high-resolution land boundary condition datasets. Here, we compare 210 km and 5 km setups of the land surface model JSBACH3 for an idealized case study in eastern Siberia to investigate the effects of high versus low-resolution land boundary conditions on simulating the interactions of soil physics, hydrology and vegetation. We show for the first time that there are differences in the spatial averages of the simulated fluxes and soil state variables between resolution setups. Most differences are small in the summer mean, but larger within individual months. Heterogeneous soil properties induce large parts of the differences while vegetation characteristics play a minor role. Active layer depth shows a statistically significant increase of +20% in the 5 km setup relative to the 210 km setup for the summer mean and +43% for August. The differences are due to the nonlinear vertical discretization of the soil column amplifying the impact of the heterogeneous distributions of soil organic matter content and supercooled water. Resolution-induced differences in evaporation fluxes amount to +43% in July and are statistically significant. Our results show that spatial resolution significantly affects model outcomes due to nonlinear processes in heterogenous land surfaces. This suggests that resolution needs to be accounted in simulations of land surface models in the Arctic. |
format |
Article in Journal/Newspaper |
author |
Meike Schickhoff Philipp de Vrese Annett Bartsch Barbara Widhalm Victor Brovkin |
author_facet |
Meike Schickhoff Philipp de Vrese Annett Bartsch Barbara Widhalm Victor Brovkin |
author_sort |
Meike Schickhoff |
title |
Effects of land surface model resolution on fluxes and soil state in the Arctic |
title_short |
Effects of land surface model resolution on fluxes and soil state in the Arctic |
title_full |
Effects of land surface model resolution on fluxes and soil state in the Arctic |
title_fullStr |
Effects of land surface model resolution on fluxes and soil state in the Arctic |
title_full_unstemmed |
Effects of land surface model resolution on fluxes and soil state in the Arctic |
title_sort |
effects of land surface model resolution on fluxes and soil state in the arctic |
publisher |
IOP Publishing |
publishDate |
2024 |
url |
https://doi.org/10.1088/1748-9326/ad6019 https://doaj.org/article/4e2df50108204ad4b12911c7f118aecb |
genre |
permafrost Siberia |
genre_facet |
permafrost Siberia |
op_source |
Environmental Research Letters, Vol 19, Iss 10, p 104032 (2024) |
op_relation |
https://doi.org/10.1088/1748-9326/ad6019 https://doaj.org/toc/1748-9326 doi:10.1088/1748-9326/ad6019 1748-9326 https://doaj.org/article/4e2df50108204ad4b12911c7f118aecb |
op_doi |
https://doi.org/10.1088/1748-9326/ad6019 |
container_title |
Environmental Research Letters |
container_volume |
19 |
container_issue |
10 |
container_start_page |
104032 |
_version_ |
1810471659587502080 |