TY  - NEWS
A1  - Heinemann, Günther
A1  - Drüe, Clemens
A1  - Schwarz, Pascal
A1  - Makshtas, Alexander
T1  - Observations of Wintertime Low-Level Jets in the Coastal Region of the Laptev Sea in the Siberian Arctic Using SODAR/RASS
T2  - Remote Sensing
N2  - 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.
KW  - Laptev Sea
KW  - low-level jets
KW  - SODAR/RASS
KW  - atmospheric boundary layer
KW  - Laptewsee
KW  - Atmosphärische Grenzschicht
KW  - Sodar
KW  - Strahlstrom
Y1  - 2021
UR  - https://ubt.opus.hbz-nrw.de/frontdoor/index/index/docId/1790
UR  - https://nbn-resolving.org/urn:nbn:de:hbz:385-1-17901
VL  - 2021
IS  - Band 13, Heft 8
PB  - MDPI
CY  - Basel
ER  -