Geographic, hydrological, and climatic significance of rock glaciers in the Great Basin, USA
We present the first comprehensive inventory and analysis of rock glaciers in the hydrographic Great Basin (GB), United States, documenting 842 features (mean 9.9 ha; range 0.1–201 ha) across thirty-two mountain ranges. These encompassed 8° latitude (from 36.5°N to 44.3°N) and 11° longitude (from −1...
Published in: | Arctic, Antarctic, and Alpine Research |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Taylor & Francis Group
2019
|
Subjects: | |
Online Access: | https://doi.org/10.1080/15230430.2019.1618666 https://doaj.org/article/88c6bd1bd7a7411c907064626b6710bc |
id |
fttriple:oai:gotriple.eu:oai:doaj.org/article:88c6bd1bd7a7411c907064626b6710bc |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:oai:doaj.org/article:88c6bd1bd7a7411c907064626b6710bc 2023-05-15T14:14:21+02:00 Geographic, hydrological, and climatic significance of rock glaciers in the Great Basin, USA Constance I. Millar Robert D. Westfall 2019-01-01 https://doi.org/10.1080/15230430.2019.1618666 https://doaj.org/article/88c6bd1bd7a7411c907064626b6710bc en eng Taylor & Francis Group 1523-0430 1938-4246 doi:10.1080/15230430.2019.1618666 https://doaj.org/article/88c6bd1bd7a7411c907064626b6710bc undefined Arctic, Antarctic, and Alpine Research, Vol 51, Iss 1, Pp 232-249 (2019) rock glaciers glaciers permanent ice fields great basin hydrology climate refugia geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2019 fttriple https://doi.org/10.1080/15230430.2019.1618666 2023-01-22T19:11:44Z We present the first comprehensive inventory and analysis of rock glaciers in the hydrographic Great Basin (GB), United States, documenting 842 features (mean 9.9 ha; range 0.1–201 ha) across thirty-two mountain ranges. These encompassed 8° latitude (from 36.5°N to 44.3°N) and 11° longitude (from −110.7°W to −121.4°W), and composed 83.1 km2, or 1.1 percent, of the cumulative area above the lowest rock glacier elevation. Forty-five percent of the features were mapped as intact (containing ice) and occurred across sixteen mountain ranges. Rock glaciers conservatively contained cumulative water volume of 0.8924 km3. We also mapped 237 persistent ice fields from thirteen GB ranges. Ice-field water equivalent was 0.0653 km3; rock glaciers contributed 93 percent of the total water volume (rock glacier:icefield ratio, 14:1). Rock glaciers occurred on northerly aspects at high elevations (mean, 3,196 m) and had a mean annual air temperature of 1.7°C (range, 1.3–3.3°C). Contributions of water from rock-glacier springs and groundwater have not been included in GB hydrologic assessments, nor have rock glaciers been evaluated for their roles in supporting cold-adapted aquatic fauna and promoting vegetation communities and habitat for alpine terrestrial species. Rock glaciers provide hydrologic and ecologic refugia previously unrecognized in the GB with respect to warming future climates. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Unknown The Gib ENVELOPE(-57.531,-57.531,51.817,51.817) Arctic, Antarctic, and Alpine Research 51 1 232 249 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
rock glaciers glaciers permanent ice fields great basin hydrology climate refugia geo envir |
spellingShingle |
rock glaciers glaciers permanent ice fields great basin hydrology climate refugia geo envir Constance I. Millar Robert D. Westfall Geographic, hydrological, and climatic significance of rock glaciers in the Great Basin, USA |
topic_facet |
rock glaciers glaciers permanent ice fields great basin hydrology climate refugia geo envir |
description |
We present the first comprehensive inventory and analysis of rock glaciers in the hydrographic Great Basin (GB), United States, documenting 842 features (mean 9.9 ha; range 0.1–201 ha) across thirty-two mountain ranges. These encompassed 8° latitude (from 36.5°N to 44.3°N) and 11° longitude (from −110.7°W to −121.4°W), and composed 83.1 km2, or 1.1 percent, of the cumulative area above the lowest rock glacier elevation. Forty-five percent of the features were mapped as intact (containing ice) and occurred across sixteen mountain ranges. Rock glaciers conservatively contained cumulative water volume of 0.8924 km3. We also mapped 237 persistent ice fields from thirteen GB ranges. Ice-field water equivalent was 0.0653 km3; rock glaciers contributed 93 percent of the total water volume (rock glacier:icefield ratio, 14:1). Rock glaciers occurred on northerly aspects at high elevations (mean, 3,196 m) and had a mean annual air temperature of 1.7°C (range, 1.3–3.3°C). Contributions of water from rock-glacier springs and groundwater have not been included in GB hydrologic assessments, nor have rock glaciers been evaluated for their roles in supporting cold-adapted aquatic fauna and promoting vegetation communities and habitat for alpine terrestrial species. Rock glaciers provide hydrologic and ecologic refugia previously unrecognized in the GB with respect to warming future climates. |
format |
Article in Journal/Newspaper |
author |
Constance I. Millar Robert D. Westfall |
author_facet |
Constance I. Millar Robert D. Westfall |
author_sort |
Constance I. Millar |
title |
Geographic, hydrological, and climatic significance of rock glaciers in the Great Basin, USA |
title_short |
Geographic, hydrological, and climatic significance of rock glaciers in the Great Basin, USA |
title_full |
Geographic, hydrological, and climatic significance of rock glaciers in the Great Basin, USA |
title_fullStr |
Geographic, hydrological, and climatic significance of rock glaciers in the Great Basin, USA |
title_full_unstemmed |
Geographic, hydrological, and climatic significance of rock glaciers in the Great Basin, USA |
title_sort |
geographic, hydrological, and climatic significance of rock glaciers in the great basin, usa |
publisher |
Taylor & Francis Group |
publishDate |
2019 |
url |
https://doi.org/10.1080/15230430.2019.1618666 https://doaj.org/article/88c6bd1bd7a7411c907064626b6710bc |
long_lat |
ENVELOPE(-57.531,-57.531,51.817,51.817) |
geographic |
The Gib |
geographic_facet |
The Gib |
genre |
Antarctic and Alpine Research Arctic |
genre_facet |
Antarctic and Alpine Research Arctic |
op_source |
Arctic, Antarctic, and Alpine Research, Vol 51, Iss 1, Pp 232-249 (2019) |
op_relation |
1523-0430 1938-4246 doi:10.1080/15230430.2019.1618666 https://doaj.org/article/88c6bd1bd7a7411c907064626b6710bc |
op_rights |
undefined |
op_doi |
https://doi.org/10.1080/15230430.2019.1618666 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
51 |
container_issue |
1 |
container_start_page |
232 |
op_container_end_page |
249 |
_version_ |
1766286866132238336 |