Statistical associations of teleconnection indices and space weather with spring weather pattern in the Eastern Baltic region

2020 ◽  
Author(s):  
Jone Vencloviene ◽  
Giedre Kaciene ◽  
Deivydas Kiznys ◽  
Romualdas Juknys
Keyword(s):  
Space Weather ◽  
Baltic Region ◽  
Weather Pattern ◽  
Teleconnection Indices ◽  
Eastern Baltic

Statistical associations of teleconnection indices and space weather with spring weather pattern in the Eastern Baltic region

2021 ◽  
Author(s):  
Giedrė Kacienė ◽  
Jonė Venclovienė ◽  
Deivydas Kiznys
Keyword(s):  
Solar Wind ◽  
Space Weather ◽  
Baltic Region ◽  
Weather Variables ◽  
Short Term ◽  
Teleconnection Patterns ◽  
Teleconnection Indices ◽  
The Mean ◽  
The Baltic

<p><span>The studies of associations between solar inputs and climate are mostly designed for winter or cold period; </span><span>whereas</span> <span>the knowledge about these associations during spring </span>on a day-to-day time scale are very scarce. Therefore, the aim of this study is to detect the response of spring air temperature (T), relative humidity (RH), and atmospheric pressure (ATP) to variation in teleconnection indices and space weather variables on the day-to-day timescale during the period of 1998–2017 in six cities of Eastern part of the Baltic region. We created<span> a multivariate linear regression model for weather variables including month, the linear and seasonal trend, different teleconnection patterns, </span>El Niño–Southern Oscillation (<span>ENSO), the Quasi-biennial Oscillation (QBO) phase, the presence of Sudden Stratospheric Warming (SSW), and space weather variables.</span></p><p>T<span>he multivariate models for </span>the mean daily weather variables showed a positive association between T and the daily Arctic oscillation (AO), monthly Scandinavian pattern (SCA) indices, solar proton events (SPEs) with a lag of 1-9 days, and solar wind dynamic pressure (P) with a lag of 1-2 days and negative association between T and East Atlantic/West Russia (EA/WR) index. <span>The linear and seasonal trends, the presence of SSW during March, and changes in AO, EA/WR, and SCA indices explained about 73% of the variation in mean daily T in the investigated region in spring. </span>The presence of the daily mean proton flux of > 10 MeV and energy over 10 pfu with a lag of 1-9 days and higher P with a lag of 1-2 <span>days </span>were also related to higher mean T. The mean RH positively correlated with a long-term and short-term variation in galactic cosmic rays (GCR) and solar wind speed (SWS) with a lag of 0-6 days and negatively correlated with EAWR and NINO3.4 indices. <span>The seasonal variation, the presence of SSW during March, the QBO phase, and the changes in the EA/WRI and ENSO explained over 38% of variation in the daily mean RH in spring.</span></p><p>The mean <span>ATP was negatively associated with both long-term and short-term changes in GCR</span> <span>and positively associated with </span>the North Atlantic oscillation (NAO), EA/WR, and SCA indices, B<sub>y</sub> component of interplanetary magnetic field <span>with a lag of 2 days, P, days of </span><span>Stream Interaction Regions (SIRs)</span><span>, and SWS with a lag of 4-6 days. These space weather variables had stronger effect on spring ATP </span>in the eastern part of the Baltic region<span> as compared to stratospheric events and teleconnection patterns. </span>Results of the present study show the significant short-term effects of SSW, SPEs, SIRs, and solar wind variables on spring weather pattern in the Eastern part of the Baltic region.</p>

Glacially redeposited pollen in tills of southern Ontario, Canada

1989 ◽  
Vol 26 (9) ◽  
pp. 1667-1676 ◽  
Author(s):  
Aleksis Dreimanis ◽  
Elsbet Liivrand ◽  
Anto Raukas
Keyword(s):  
Analytical Data ◽  
Transitional Period ◽  
Baltic Region ◽  
Pollen Assemblage ◽  
Southern Ontario ◽  
European Model ◽  
Northern European ◽  
Pollen Content ◽  
Eastern Baltic ◽  
Glacial Advance

According to published opinion based on analytical data, the secondary pollen of subglacial till in the eastern Baltic region of Europe reflect the pollen assemblages of the preceding interstadial or interglacial sediment, including abundant thermo-philous pollen. Tills and glaciolacustrine sediments from 10 sites in southern Ontario, including the Don Valley Brickyard section at Toronto, where polynologically investigated to compare the pollen content in glacigenic deposits of various ages. Only one site (upper Bradtville till) contained a secondary pollen assemblage with abundant deciduous pollen, like those found in a Yarmouthian interglacial deposit in Indiana. In all the others, pine (Pinus) pollen dominate. This phenomenon is explained by glacial incorporation of sediments enriched in overproduced Pinus pollen, which had accumulated during either (i) a lengthy cool transitional period between the warm phase of the Sangamonian Interglacial and the first major Early Wisconsinan glacial advance, (ii) the interstadial Middle Wisconsinan, or (iii) the cool nonglacial episode of Illinoian and pre-Illinoian time. Therefore, the northern European model for distinguishing tills of different ages by their secondary pollen assemblages is applicable to southern Ontario only in exceptional cases. Pollen in the glaciolacustrine Early Wisconsinan Sunnybrook Drift sediments resembles those of Sunnybrook till, but are more variable in their preservation and composition and contain more pre-Quaternary palynomorphs.

Environmental Quality of Groundwater in Contaminated Areas—Challenges in Eastern Baltic Region

2020 ◽  
pp. 59-84
Author(s):  
Juris Burlakovs ◽  
William Hogland ◽  
Zane Vincevica-Gaile ◽  
Mait Kriipsalu ◽  
Maris Klavins ◽  
...  
Keyword(s):  
Environmental Quality ◽  
Baltic Region ◽  
Eastern Baltic

scholarly journals Rimutė Rimantienė: Founder of the School of Stone Age Explorations in Lithuania and the Eastern Baltic Region

2017 ◽  
Vol 17 (17) ◽  
pp. 11
Author(s):  
Adomas Butrimas
Keyword(s):  
Stone Age ◽  
Baltic Region ◽  
Eastern Baltic

...

Long-term air pollution trend analysis in the South-eastern Baltic region, 1981–2017

2021 ◽  
Vol 247 ◽  
pp. 105191
Author(s):  
Lina Davuliene ◽  
Dalia Jasineviciene ◽  
Inga Garbariene ◽  
Jelena Andriejauskiene ◽  
Vidmantas Ulevicius ◽  
...  
Keyword(s):  
Air Pollution ◽  
Trend Analysis ◽  
Baltic Region ◽  
The South ◽  
South Eastern ◽  
Eastern Baltic

Seismotectonic and seismic hazard maps of Lithuania – recent implications of intracratonic seismicity in the Eastern Baltic Region

Geologija ◽  
2012 ◽  
Vol 54 (1) ◽  
Author(s):  
Jurga Lazauskienė ◽  
Andrius Pačėsa ◽  
Jonas Satkūnas
Keyword(s):  
Seismic Hazard ◽  
Hazard Maps ◽  
Baltic Region ◽  
Seismic Hazard Maps ◽  
Eastern Baltic

Woodland and Urban Populations of the WoodpigeonColumba palumbusin the Eastern Baltic Region

Ardeola ◽  
2011 ◽  
Vol 58 (2) ◽  
pp. 315-321 ◽  
Author(s):  
Antonio Bea ◽  
Saulius Svazas ◽  
Gennady Grishanov ◽  
Alexander Kozulin ◽  
Vitas Stanevicius ◽  
...  
Keyword(s):  
Baltic Region ◽  
Urban Populations ◽  
Eastern Baltic

Y-Chromosomal Lineages of Latvians in the Context of the Genetic Variation of the Eastern-Baltic Region

2015 ◽  
Vol 79 (6) ◽  
pp. 418-430 ◽  
Author(s):  
Liana Pliss ◽  
Līga Timša ◽  
Siiri Rootsi ◽  
Kristiina Tambets ◽  
Inese Pelnena ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Baltic Region ◽  
Eastern Baltic
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