High-resolution mapping of spatial heterogeneity in ice wedge polygon geomorphology near Prudhoe Bay, Alaska
Abstract It is well known that microtopography associated with ice wedge polygons drives pronounced, meter-scale spatial gradients in hydrologic and ecological processes on the tundra. However, high-resolution maps of polygonal geomorphology are rarely available, due to the complexity and subtlety o...
Published in: | Scientific Data |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Springer Science and Business Media LLC
2020
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1038/s41597-020-0423-9 http://www.nature.com/articles/s41597-020-0423-9.pdf http://www.nature.com/articles/s41597-020-0423-9 |
id |
crspringernat:10.1038/s41597-020-0423-9 |
---|---|
record_format |
openpolar |
spelling |
crspringernat:10.1038/s41597-020-0423-9 2023-05-15T18:03:38+02:00 High-resolution mapping of spatial heterogeneity in ice wedge polygon geomorphology near Prudhoe Bay, Alaska Abolt, Charles J. Young, Michael H. 2020 http://dx.doi.org/10.1038/s41597-020-0423-9 http://www.nature.com/articles/s41597-020-0423-9.pdf http://www.nature.com/articles/s41597-020-0423-9 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Data volume 7, issue 1 ISSN 2052-4463 Library and Information Sciences Statistics, Probability and Uncertainty Computer Science Applications Education Information Systems Statistics and Probability journal-article 2020 crspringernat https://doi.org/10.1038/s41597-020-0423-9 2022-01-04T15:19:42Z Abstract It is well known that microtopography associated with ice wedge polygons drives pronounced, meter-scale spatial gradients in hydrologic and ecological processes on the tundra. However, high-resolution maps of polygonal geomorphology are rarely available, due to the complexity and subtlety of ice wedge polygon relief at landscape scales. Here we present a sub-meter resolution map of >10 6 discrete ice wedge polygons across a ~1200 km 2 landscape, delineated within a lidar-derived digital elevation model. The delineation procedure relies on a convolutional neural network paired with a set of common image processing operations and permits explicit measurement of relative elevation at the center of each ice wedge polygon. The resulting map visualizes meter- to kilometer-scale spatial gradients in polygonal geomorphology across an extensive landscape with unprecedented detail. This high-resolution inventory of polygonal geomorphology provides rich spatial context for extrapolating observations of environmental processes across the landscape. The map also represents an extensive baseline dataset for quantifying contemporary land surface deformation ( i.e ., thermokarst) at the survey area, through future topographic surveys. Article in Journal/Newspaper Prudhoe Bay Thermokarst Tundra Alaska Springer Nature (via Crossref) Scientific Data 7 1 |
institution |
Open Polar |
collection |
Springer Nature (via Crossref) |
op_collection_id |
crspringernat |
language |
English |
topic |
Library and Information Sciences Statistics, Probability and Uncertainty Computer Science Applications Education Information Systems Statistics and Probability |
spellingShingle |
Library and Information Sciences Statistics, Probability and Uncertainty Computer Science Applications Education Information Systems Statistics and Probability Abolt, Charles J. Young, Michael H. High-resolution mapping of spatial heterogeneity in ice wedge polygon geomorphology near Prudhoe Bay, Alaska |
topic_facet |
Library and Information Sciences Statistics, Probability and Uncertainty Computer Science Applications Education Information Systems Statistics and Probability |
description |
Abstract It is well known that microtopography associated with ice wedge polygons drives pronounced, meter-scale spatial gradients in hydrologic and ecological processes on the tundra. However, high-resolution maps of polygonal geomorphology are rarely available, due to the complexity and subtlety of ice wedge polygon relief at landscape scales. Here we present a sub-meter resolution map of >10 6 discrete ice wedge polygons across a ~1200 km 2 landscape, delineated within a lidar-derived digital elevation model. The delineation procedure relies on a convolutional neural network paired with a set of common image processing operations and permits explicit measurement of relative elevation at the center of each ice wedge polygon. The resulting map visualizes meter- to kilometer-scale spatial gradients in polygonal geomorphology across an extensive landscape with unprecedented detail. This high-resolution inventory of polygonal geomorphology provides rich spatial context for extrapolating observations of environmental processes across the landscape. The map also represents an extensive baseline dataset for quantifying contemporary land surface deformation ( i.e ., thermokarst) at the survey area, through future topographic surveys. |
format |
Article in Journal/Newspaper |
author |
Abolt, Charles J. Young, Michael H. |
author_facet |
Abolt, Charles J. Young, Michael H. |
author_sort |
Abolt, Charles J. |
title |
High-resolution mapping of spatial heterogeneity in ice wedge polygon geomorphology near Prudhoe Bay, Alaska |
title_short |
High-resolution mapping of spatial heterogeneity in ice wedge polygon geomorphology near Prudhoe Bay, Alaska |
title_full |
High-resolution mapping of spatial heterogeneity in ice wedge polygon geomorphology near Prudhoe Bay, Alaska |
title_fullStr |
High-resolution mapping of spatial heterogeneity in ice wedge polygon geomorphology near Prudhoe Bay, Alaska |
title_full_unstemmed |
High-resolution mapping of spatial heterogeneity in ice wedge polygon geomorphology near Prudhoe Bay, Alaska |
title_sort |
high-resolution mapping of spatial heterogeneity in ice wedge polygon geomorphology near prudhoe bay, alaska |
publisher |
Springer Science and Business Media LLC |
publishDate |
2020 |
url |
http://dx.doi.org/10.1038/s41597-020-0423-9 http://www.nature.com/articles/s41597-020-0423-9.pdf http://www.nature.com/articles/s41597-020-0423-9 |
genre |
Prudhoe Bay Thermokarst Tundra Alaska |
genre_facet |
Prudhoe Bay Thermokarst Tundra Alaska |
op_source |
Scientific Data volume 7, issue 1 ISSN 2052-4463 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41597-020-0423-9 |
container_title |
Scientific Data |
container_volume |
7 |
container_issue |
1 |
_version_ |
1766174568647491584 |