A Study on the Relationship of Arctic Oscillation with Atmospheric Rivers and Snowpack in the Western United States Using Forty-Year Multi-Platform Dataset
Atmospheric rivers (ARs) are affected by large-scale climate variability. We investigate how ARs and snowpack are shaped by arctic oscillation (AO) by examining the synoptic conditions and characteristics of ARs and snowpack in the different phases of AO using forty years (1980-2019) of Integrated M...
Main Author: | |
---|---|
Format: | Text |
Language: | unknown |
Published: |
SJSU ScholarWorks
2021
|
Subjects: | |
Online Access: | https://scholarworks.sjsu.edu/etd_theses/5236 https://doi.org/10.31979/etd.2vtu-rdc4 https://scholarworks.sjsu.edu/context/etd_theses/article/8783/viewcontent/Liner_sj.PDF |
id |
ftsanjosestate:oai:scholarworks.sjsu.edu:etd_theses-8783 |
---|---|
record_format |
openpolar |
spelling |
ftsanjosestate:oai:scholarworks.sjsu.edu:etd_theses-8783 2023-07-30T04:01:31+02:00 A Study on the Relationship of Arctic Oscillation with Atmospheric Rivers and Snowpack in the Western United States Using Forty-Year Multi-Platform Dataset Liner, Samuel 2021-12-20T08:00:00Z application/pdf https://scholarworks.sjsu.edu/etd_theses/5236 https://doi.org/10.31979/etd.2vtu-rdc4 https://scholarworks.sjsu.edu/context/etd_theses/article/8783/viewcontent/Liner_sj.PDF unknown SJSU ScholarWorks https://scholarworks.sjsu.edu/etd_theses/5236 doi:10.31979/etd.2vtu-rdc4 https://scholarworks.sjsu.edu/context/etd_theses/article/8783/viewcontent/Liner_sj.PDF Master's Theses Meteorology text 2021 ftsanjosestate https://doi.org/10.31979/etd.2vtu-rdc4 2023-07-17T19:08:18Z Atmospheric rivers (ARs) are affected by large-scale climate variability. We investigate how ARs and snowpack are shaped by arctic oscillation (AO) by examining the synoptic conditions and characteristics of ARs and snowpack in the different phases of AO using forty years (1980-2019) of Integrated Multi-satellite Retrievals for Global Precipitation Measurement (IMERG) data, Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA2) reanalysis data, and in-situ observation data over the eastern Pacific and western U.S. region. More precipitation is found in lower latitudes during negative AO months and farther north in latitude during positive AO months. These are associated with wavelike synoptic patterns in negative AO months while more straight-type synoptic patterns in positive AO months. The AR characteristics are also modulated by the different phase of AO: lower (higher) integrated water vapor transport and total precipitation, shorter (longer) duration of ARs, and less (more) ARs per month were more likely found during positive AO (negative AO) months with regional variability. Finally, snow water equivalent (SWE) tends to be reduced in positive AO phase and in high temperature condition, especially in the recent years, although the robust relationship remains unclear for long-term period. These findings highlight how the characteristics of local extreme weather during ARs can be shaped by large-scale climate variability. Text Arctic San José State University: SJSU ScholarWorks Arctic Pacific |
institution |
Open Polar |
collection |
San José State University: SJSU ScholarWorks |
op_collection_id |
ftsanjosestate |
language |
unknown |
topic |
Meteorology |
spellingShingle |
Meteorology Liner, Samuel A Study on the Relationship of Arctic Oscillation with Atmospheric Rivers and Snowpack in the Western United States Using Forty-Year Multi-Platform Dataset |
topic_facet |
Meteorology |
description |
Atmospheric rivers (ARs) are affected by large-scale climate variability. We investigate how ARs and snowpack are shaped by arctic oscillation (AO) by examining the synoptic conditions and characteristics of ARs and snowpack in the different phases of AO using forty years (1980-2019) of Integrated Multi-satellite Retrievals for Global Precipitation Measurement (IMERG) data, Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA2) reanalysis data, and in-situ observation data over the eastern Pacific and western U.S. region. More precipitation is found in lower latitudes during negative AO months and farther north in latitude during positive AO months. These are associated with wavelike synoptic patterns in negative AO months while more straight-type synoptic patterns in positive AO months. The AR characteristics are also modulated by the different phase of AO: lower (higher) integrated water vapor transport and total precipitation, shorter (longer) duration of ARs, and less (more) ARs per month were more likely found during positive AO (negative AO) months with regional variability. Finally, snow water equivalent (SWE) tends to be reduced in positive AO phase and in high temperature condition, especially in the recent years, although the robust relationship remains unclear for long-term period. These findings highlight how the characteristics of local extreme weather during ARs can be shaped by large-scale climate variability. |
format |
Text |
author |
Liner, Samuel |
author_facet |
Liner, Samuel |
author_sort |
Liner, Samuel |
title |
A Study on the Relationship of Arctic Oscillation with Atmospheric Rivers and Snowpack in the Western United States Using Forty-Year Multi-Platform Dataset |
title_short |
A Study on the Relationship of Arctic Oscillation with Atmospheric Rivers and Snowpack in the Western United States Using Forty-Year Multi-Platform Dataset |
title_full |
A Study on the Relationship of Arctic Oscillation with Atmospheric Rivers and Snowpack in the Western United States Using Forty-Year Multi-Platform Dataset |
title_fullStr |
A Study on the Relationship of Arctic Oscillation with Atmospheric Rivers and Snowpack in the Western United States Using Forty-Year Multi-Platform Dataset |
title_full_unstemmed |
A Study on the Relationship of Arctic Oscillation with Atmospheric Rivers and Snowpack in the Western United States Using Forty-Year Multi-Platform Dataset |
title_sort |
study on the relationship of arctic oscillation with atmospheric rivers and snowpack in the western united states using forty-year multi-platform dataset |
publisher |
SJSU ScholarWorks |
publishDate |
2021 |
url |
https://scholarworks.sjsu.edu/etd_theses/5236 https://doi.org/10.31979/etd.2vtu-rdc4 https://scholarworks.sjsu.edu/context/etd_theses/article/8783/viewcontent/Liner_sj.PDF |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Master's Theses |
op_relation |
https://scholarworks.sjsu.edu/etd_theses/5236 doi:10.31979/etd.2vtu-rdc4 https://scholarworks.sjsu.edu/context/etd_theses/article/8783/viewcontent/Liner_sj.PDF |
op_doi |
https://doi.org/10.31979/etd.2vtu-rdc4 |
_version_ |
1772812295764705280 |