scholarly journals Assessment of NTSG MODIS NPP product for forests in Kurzeme region, Latvia / Kuramaa metsade primaarproduktsiooni hindamisest NTSG MODIS NPP andmestiku abil

2013 ◽  
Vol 58 (1) ◽  
pp. 26-36
Author(s):  
Mait Lang ◽  
Agris Traškovs ◽  
Linda Gulbe
Keyword(s):  
Baltic Sea ◽  
Forest Cover ◽  
Net Primary Production ◽  
Growth Potential ◽  
Stem Biomass ◽  
Biomass Increment ◽  
Potential Estimate ◽  
Site Fertility ◽  
The Baltic ◽  
Sea Coast

Abstract The space-borne Moderate Resolution Imaging Spectroradiometer (MODIS) data based net primary production (NPP) product from Numerical Terradynamic Simulation Group (NTSG) was tested in the Kurzeme region, Latvia using a stand-wise forest inventory database. The NPP product has been validated globally and found to have no overall bias. In this study the NPP product was compared with stem biomass increment and soil fertility in respect to distance from the Baltic Sea coast. For each MODIS NPP product pixel we calculated forest cover, share of coniferous trees, average stem biomass increment and average site fertility (growth potential estimate). Then, 2432 pixels with a forest cover over 75% were selected for analysis. The results indicated that MODIS NPP decreased with distance from Baltic Sea coast but stem biomass increment and site fertility indicated a trend of increase. There was no functional relationship between MODIS NPP and stem biomass increment. Analysis of the landcover map used by NTSG for MODIS NPP product showed that the classes “Evergreen needleleaf” and “Mixed forests” differentiated only 10% by mode value of coniferous proportions in species composition. A non-natural jump was detected in the MODIS NPP values at a longitude of 22.5 degrees east corresponding to the border of the coarse scale meteorological dataset (NCEP Reanalysis (R2)) data representation unit. According to the results the MODIS NPP product is not applicable for regional level planning but can probably provide only rough average estimates of NPP for the Baltic region

The Baltic Sea coast—A model of interrelations among geosphere, climate, and anthroposphere

2007 ◽  
Author(s):  
Jan Harff ◽  
Wolfram Lemke ◽  
Reinhard Lampe ◽  
Friedrich Lüth ◽  
Harald Lübke ◽  
...  
Keyword(s):  
Baltic Sea ◽  
The Baltic Sea ◽  
The Baltic ◽  
Sea Coast

Mastogloia jahniae sp. nov., a new diatom (Bacillariophyceae) from the Baltic Sea coast of Sweden

Phytotaxa ◽  
2021 ◽  
Vol 484 (1) ◽  
pp. 121-128
Author(s):  
ADIL Y. AL-HANDAL ◽  
ANGELA WULFF ◽  
CHIARA PENNESI
Keyword(s):  
New Species ◽  
Baltic Sea ◽  
East Coast ◽  
Central Area ◽  
The Baltic Sea ◽  
The Baltic ◽  
Brackish Water Species ◽  
Water Species ◽  
Sea Coast ◽  
Scanning Electron

Described is here Mastogloia jahniae sp. nov. a species new to science from Skatan on the Baltic Sea, east coast of Sweden. Description of this new species is based on light and scanning electron microscopy. The new species is classified in the Mastogloia section Ellipticae and is characterized by having radiating short and long striae around the central area, sinuous raphe branches and partecta displaced toward the middle of the valve by a siliceous flange. M. jahniae sp. nov. in terms of size is rather small whereas in terms of ecology appears an epipelic brackish water species. The new species was rather rare in all samples collected from Skatan and has not been found in the other adjacent regions sampled. A comparison with similar established Mastogloia species is provided.

Simulating extreme sea levels at the Baltic Sea coast from synthetic cyclones

2020 ◽  
Author(s):  
Jani Särkkä ◽  
Jani Räihä ◽  
Matti Kämäräinen ◽  
Kirsti Jylhä
Keyword(s):  
Baltic Sea ◽  
Sea Level ◽  
Water Volume ◽  
The Baltic Sea ◽  
Data Set ◽  
Sea Levels ◽  
Extreme Sea Levels ◽  
Level Model ◽  
The Baltic ◽  
Sea Coast

<p>Coastal areas are under rapid changes. Management to face flooding hazards in changing climate is of great significance due to the major impact of flooding events in densely populated coastal regions, where also important and vulnerable infrastructure is located. The sea level of the Baltic Sea is affected by internal fluctuations caused by wind, air pressure and seiche oscillations, and by variations of the water volume due to the water exchange between the Baltic Sea and the North Sea through the Danish Straits. The highest sea level extremes are caused by cyclones moving over the region. The most vulnerable locations are at the ends of the bays. St. Petersburg, located at the eastern end of the Gulf of Finland, has experienced major sea floods in 1777, 1824 and 1924.</p><p>In order to study the effects of the depths and tracks of cyclones on the extreme sea levels, we have developed a method to generate cyclones for numerical sea level studies. A cyclone is modelled as a two-dimensional Gaussian function with adjustable horizontal size and depth. The cyclone moves through the Baltic Sea region with given direction and velocity. The output of this method is the gridded data set of mean sea level pressure and wind components which are used as an input for the sea level model. The internal variations of the Baltic Sea are calculated with a numerical barotropic sea level model, and the water volume variations are evaluated using a statistical sea level model based on wind speeds near the Danish Straits. The sea level model simulations allow us to study extremely rare but physically plausible sea level events that have not occurred during the observation period at the Baltic Sea coast. The simulation results are used to investigate extreme sea levels that could occur at selected sites at the Finnish coastline.</p>

Modeling of Storm Induced Island Breaching at the Baltic Sea Coast

2006 ◽  
Author(s):  
Markus Witting ◽  
Peter Mewis ◽  
Ulrich Zanke
Keyword(s):  
Baltic Sea ◽  
The Baltic Sea ◽  
The Baltic ◽  
Sea Coast

scholarly journals The flies (Diptera) say that amber from the Gulf of Gdańsk, Bitterfeld and Rovno is the same Baltic amber

2013 ◽  
Vol 82 (4) ◽  
pp. 379-388 ◽  
Author(s):  
Jacek Szwedo ◽  
Elżbieta Sontag
Keyword(s):  
Species Composition ◽  
Baltic Sea ◽  
Geographical Origin ◽  
Baltic Amber ◽  
Gulf Of Gdańsk ◽  
The Baltic Sea ◽  
Biting Midges ◽  
Gulf Of Gdansk ◽  
The Baltic ◽  
Sea Coast

ABSTRACT Amber and its inclusions have been studied for over 200 years. Particular reverence was accorded the amber from the deposits around the Gulf of Gdańsk. As knowledge of amber increased, the problem of distinguishing amber from the various deposits along the Baltic Sea coast, but also in Germany, Belarus and Ukraine arose. Here we discuss the species composition of biting midges (Ceratopogonidae) from amber derived from different deposits, and discuss the use of regional names for Baltic amber yielding inclusions from the same taphocoenosis but of different geographical origin.

Description of a new fossil Statira Lepeletier et Audinet-Serville, 1828 (Coleoptera: Tenebrionidae: Lagriinae) from Baltic amber of the Sambian Peninsula

Zootaxa ◽  
2019 ◽  
Vol 4683 (4) ◽  
pp. 508-514 ◽  
Author(s):  
DMITRY TELNOV ◽  
ANDRIS BUKEJS ◽  
OTTÓ MERKL
Keyword(s):  
Baltic Sea ◽  
New World ◽  
Baltic Amber ◽  
The Baltic Sea ◽  
Kaliningrad Region ◽  
The Baltic ◽  
Sea Coast ◽  
Coleoptera Tenebrionidae

Statira baltica sp. nov. is described from Eocene Baltic amber found in the Baltic Sea coast, Yantarny settlement, Kaliningrad Region, Russia. This is the second described fossil member of the genus Statira Lepeletier et Audinet-Serville, 1828 and the tribe Lagriini Latreille, 1825, and the first from outside the New World. 

scholarly journals Orientation and flight behaviour identify the Soprano pipistrelle as a migratory bat species at the Baltic Sea coast

2019 ◽  
Vol 308 (1) ◽  
pp. 56-65 ◽  
Author(s):  
O. Lindecke ◽  
A. Elksne ◽  
R. A. Holland ◽  
G. Pētersons ◽  
C. C. Voigt
Keyword(s):  
Baltic Sea ◽  
The Baltic Sea ◽  
Flight Behaviour ◽  
The Baltic ◽  
Sea Coast

scholarly journals Comparative Analysis of Ports on the Eastern Baltic Sea Coast

Logistics ◽  
2021 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
Jūratė Liebuvienė ◽  
Kristina Čižiūnienė
Keyword(s):  
Comparative Analysis ◽  
Baltic Sea ◽  
General Type ◽  
Statistical Data ◽  
Eastern Shore ◽  
The Baltic Sea ◽  
Baltic Sea Region ◽  
The Baltic ◽  
Sea Coast ◽  
Eastern Baltic

Ports are an important part of the global and regional freight supply chain and transport network. As port activities have a significant impact on the economic growth of these countries, it is necessary to constantly analyse and plan port activities, anticipate market changes and improve the ability of ports to withstand the growing general competitive pressure. This article analyses studies conducted by researchers on the topic of seaports, thus, and find that there are no analyses comparing more than two ports. A comparative analysis of the ports on the eastern shore of the Baltic Sea was conducted using the analysis of statistical data. The comparative analysis of ports on the eastern Baltic Sea revealed that Klaipeda port is the most diversified port in the eastern Baltic Sea region, given that it does not have any single most important type of cargo. The largest ports in terms of bulk cargo are in Tallinn, Riga and Ventspils. Primorsk is the largest port for liquid cargo and St. Petersburg handles the greatest volumes of cargo of a general type andwhile the distribution of cargo flows in the port of Visotsk is best correlated with the selected parameters, which allows us to state that the infrastructure of this port is used to the maximum.

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