Observations of Wintertime Low-Level Jets in the Coastal Region of the Laptev Sea in the Siberian Arctic Using SODAR/RASS
In 2014/2015 a one-year field campaign at the Tiksi observatory in the Laptev Sea area was carried out using Sound Detection and Ranging/Radio Acoustic Sounding System (SODAR/RASS) measurements to investigate the atmospheric boundary layer (ABL) with a focus on low-level jets (LLJ) during the winter...
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ftmdpi:oai:mdpi.com:/2072-4292/13/8/1421/ 2023-08-20T04:04:37+02:00 Observations of Wintertime Low-Level Jets in the Coastal Region of the Laptev Sea in the Siberian Arctic Using SODAR/RASS Günther Heinemann Clemens Drüe Pascal Schwarz Alexander Makshtas 2021-04-07 application/pdf https://doi.org/10.3390/rs13081421 EN eng Multidisciplinary Digital Publishing Institute Atmosphere Remote Sensing https://dx.doi.org/10.3390/rs13081421 https://creativecommons.org/licenses/by/4.0/ Remote Sensing; Volume 13; Issue 8; Pages: 1421 low-level jets SODAR/RASS atmospheric boundary layer Laptev Sea Text 2021 ftmdpi https://doi.org/10.3390/rs13081421 2023-08-01T01:27:00Z In 2014/2015 a one-year field campaign at the Tiksi observatory in the Laptev Sea area was carried out using Sound Detection and Ranging/Radio Acoustic Sounding System (SODAR/RASS) measurements to investigate the atmospheric boundary layer (ABL) with a focus on low-level jets (LLJ) during the winter season. In addition to SODAR/RASS-derived vertical profiles of temperature, wind speed and direction, a suite of complementary measurements at the Tiksi observatory was available. Data of a regional atmospheric model were used to put the local data into the synoptic context. Two case studies of LLJ events are presented. The statistics of LLJs for six months show that in about 23% of all profiles LLJs were present with a mean jet speed and height of about 7 m/s and 240 m, respectively. In 3.4% of all profiles LLJs exceeding 10 m/s occurred. The main driving mechanism for LLJs seems to be the baroclinicity, since no inertial oscillations were found. LLJs with heights below 200 m are likely influenced by local topography. Text Arctic laptev Laptev Sea Tiksi MDPI Open Access Publishing Arctic Laptev Sea Tiksi ENVELOPE(128.867,128.867,71.633,71.633) Remote Sensing 13 8 1421 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
low-level jets SODAR/RASS atmospheric boundary layer Laptev Sea |
spellingShingle |
low-level jets SODAR/RASS atmospheric boundary layer Laptev Sea Günther Heinemann Clemens Drüe Pascal Schwarz Alexander Makshtas Observations of Wintertime Low-Level Jets in the Coastal Region of the Laptev Sea in the Siberian Arctic Using SODAR/RASS |
topic_facet |
low-level jets SODAR/RASS atmospheric boundary layer Laptev Sea |
description |
In 2014/2015 a one-year field campaign at the Tiksi observatory in the Laptev Sea area was carried out using Sound Detection and Ranging/Radio Acoustic Sounding System (SODAR/RASS) measurements to investigate the atmospheric boundary layer (ABL) with a focus on low-level jets (LLJ) during the winter season. In addition to SODAR/RASS-derived vertical profiles of temperature, wind speed and direction, a suite of complementary measurements at the Tiksi observatory was available. Data of a regional atmospheric model were used to put the local data into the synoptic context. Two case studies of LLJ events are presented. The statistics of LLJs for six months show that in about 23% of all profiles LLJs were present with a mean jet speed and height of about 7 m/s and 240 m, respectively. In 3.4% of all profiles LLJs exceeding 10 m/s occurred. The main driving mechanism for LLJs seems to be the baroclinicity, since no inertial oscillations were found. LLJs with heights below 200 m are likely influenced by local topography. |
format |
Text |
author |
Günther Heinemann Clemens Drüe Pascal Schwarz Alexander Makshtas |
author_facet |
Günther Heinemann Clemens Drüe Pascal Schwarz Alexander Makshtas |
author_sort |
Günther Heinemann |
title |
Observations of Wintertime Low-Level Jets in the Coastal Region of the Laptev Sea in the Siberian Arctic Using SODAR/RASS |
title_short |
Observations of Wintertime Low-Level Jets in the Coastal Region of the Laptev Sea in the Siberian Arctic Using SODAR/RASS |
title_full |
Observations of Wintertime Low-Level Jets in the Coastal Region of the Laptev Sea in the Siberian Arctic Using SODAR/RASS |
title_fullStr |
Observations of Wintertime Low-Level Jets in the Coastal Region of the Laptev Sea in the Siberian Arctic Using SODAR/RASS |
title_full_unstemmed |
Observations of Wintertime Low-Level Jets in the Coastal Region of the Laptev Sea in the Siberian Arctic Using SODAR/RASS |
title_sort |
observations of wintertime low-level jets in the coastal region of the laptev sea in the siberian arctic using sodar/rass |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/rs13081421 |
long_lat |
ENVELOPE(128.867,128.867,71.633,71.633) |
geographic |
Arctic Laptev Sea Tiksi |
geographic_facet |
Arctic Laptev Sea Tiksi |
genre |
Arctic laptev Laptev Sea Tiksi |
genre_facet |
Arctic laptev Laptev Sea Tiksi |
op_source |
Remote Sensing; Volume 13; Issue 8; Pages: 1421 |
op_relation |
Atmosphere Remote Sensing https://dx.doi.org/10.3390/rs13081421 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/rs13081421 |
container_title |
Remote Sensing |
container_volume |
13 |
container_issue |
8 |
container_start_page |
1421 |
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1774715003617673216 |