Navajo Nation, USA, Precipitation Variability from 2002 to 2015
Abstract Due to its semi‐arid climate, the Navajo Nation, situated in the southwestern United States, is sensitive to small changes in precipitation. However, little information on patterns and causes of rainfall variation is available for this sparsely populated region. In order to study stability...
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crwiley:10.1111/j.1936-704x.2018.03273.x 2024-04-28T07:53:56+00:00 Navajo Nation, USA, Precipitation Variability from 2002 to 2015 Tulley‐Cordova, Crystal L. Strong, Courtenay Brady, Irving P. Bekis, Jerome Bowen, Gabriel J. 2018 http://dx.doi.org/10.1111/j.1936-704x.2018.03273.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1936-704X.2018.03273.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1936-704X.2018.03273.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Contemporary Water Research & Education volume 163, issue 1, page 109-123 ISSN 1936-7031 1936-704X General Medicine journal-article 2018 crwiley https://doi.org/10.1111/j.1936-704x.2018.03273.x 2024-04-02T08:41:58Z Abstract Due to its semi‐arid climate, the Navajo Nation, situated in the southwestern United States, is sensitive to small changes in precipitation. However, little information on patterns and causes of rainfall variation is available for this sparsely populated region. In order to study stability and variability over time, this study characterized hydroclimatic changes for the Navajo Nation over timescales of months to years based on data from 90 sites from 2002 to 2015. This research will help local water managers identify related precipitation areas within the region, compare Navajo Nation precipitation with climate indices to ascertain larger‐scale atmospheric contributors to precipitation in the Four Corners region, and support future water planning in this understudied region. A vector quantization method, called k ‐means clustering, identified five sub‐regions of contrasting precipitation climatology. The regions differed in the timing, magnitude, and relative importance of the winter and summer peaks comprising the bimodal precipitation regime of the area. Correlation examination of spatial and temporal trends of precipitation variability with three climate indices revealed strong winter precipitation relationships to the Pacific North American teleconnection pattern for all regions; summer precipitation teleconnections were weaker and more variable; however, modest correlations with Pacific Decadal Oscillation were observed. Climate field analysis indicates that cold‐season precipitation is enhanced by intensification of the Aleutian Low with a storm trajectory into the southwest United States; warm season precipitation is enhanced by poleward shift of the North American monsoon ridge. Article in Journal/Newspaper aleutian low Wiley Online Library Journal of Contemporary Water Research & Education 163 1 109 123 |
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Wiley Online Library |
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English |
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General Medicine |
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General Medicine Tulley‐Cordova, Crystal L. Strong, Courtenay Brady, Irving P. Bekis, Jerome Bowen, Gabriel J. Navajo Nation, USA, Precipitation Variability from 2002 to 2015 |
topic_facet |
General Medicine |
description |
Abstract Due to its semi‐arid climate, the Navajo Nation, situated in the southwestern United States, is sensitive to small changes in precipitation. However, little information on patterns and causes of rainfall variation is available for this sparsely populated region. In order to study stability and variability over time, this study characterized hydroclimatic changes for the Navajo Nation over timescales of months to years based on data from 90 sites from 2002 to 2015. This research will help local water managers identify related precipitation areas within the region, compare Navajo Nation precipitation with climate indices to ascertain larger‐scale atmospheric contributors to precipitation in the Four Corners region, and support future water planning in this understudied region. A vector quantization method, called k ‐means clustering, identified five sub‐regions of contrasting precipitation climatology. The regions differed in the timing, magnitude, and relative importance of the winter and summer peaks comprising the bimodal precipitation regime of the area. Correlation examination of spatial and temporal trends of precipitation variability with three climate indices revealed strong winter precipitation relationships to the Pacific North American teleconnection pattern for all regions; summer precipitation teleconnections were weaker and more variable; however, modest correlations with Pacific Decadal Oscillation were observed. Climate field analysis indicates that cold‐season precipitation is enhanced by intensification of the Aleutian Low with a storm trajectory into the southwest United States; warm season precipitation is enhanced by poleward shift of the North American monsoon ridge. |
format |
Article in Journal/Newspaper |
author |
Tulley‐Cordova, Crystal L. Strong, Courtenay Brady, Irving P. Bekis, Jerome Bowen, Gabriel J. |
author_facet |
Tulley‐Cordova, Crystal L. Strong, Courtenay Brady, Irving P. Bekis, Jerome Bowen, Gabriel J. |
author_sort |
Tulley‐Cordova, Crystal L. |
title |
Navajo Nation, USA, Precipitation Variability from 2002 to 2015 |
title_short |
Navajo Nation, USA, Precipitation Variability from 2002 to 2015 |
title_full |
Navajo Nation, USA, Precipitation Variability from 2002 to 2015 |
title_fullStr |
Navajo Nation, USA, Precipitation Variability from 2002 to 2015 |
title_full_unstemmed |
Navajo Nation, USA, Precipitation Variability from 2002 to 2015 |
title_sort |
navajo nation, usa, precipitation variability from 2002 to 2015 |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1111/j.1936-704x.2018.03273.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1936-704X.2018.03273.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1936-704X.2018.03273.x |
genre |
aleutian low |
genre_facet |
aleutian low |
op_source |
Journal of Contemporary Water Research & Education volume 163, issue 1, page 109-123 ISSN 1936-7031 1936-704X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1936-704x.2018.03273.x |
container_title |
Journal of Contemporary Water Research & Education |
container_volume |
163 |
container_issue |
1 |
container_start_page |
109 |
op_container_end_page |
123 |
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1797574112269303808 |