scholarly journals ПОПЕРЕДНІ РЕЗУЛЬТАТИ РАДАРНИХ СПОСТЕРЕЖЕНЬ НІЧНОЙ МІГРАЦІЇ ПТАХІВ В ІЗРАЇЛІ

Author(s):  
О. V. Matsyura

<p>The results of radar-tracking supervisions over the night migration in Israel are submitted. The determination of flight altitudes, flight speeds, heights of maximum birds’ concentration, and migratory directions was performed. The average flight altitudes of night migration were 985 m in autumn and 1465 m in spring of 1998-2000, maximum flight altitudes were 2068 m and 2655 m correspondingly. The mean track direction of the night bird migration is 183° in spring and 6° in autumn. The migration of waterfowl over the Mediterranean Sea in the low altitude band was registered. Their average headings differ from the general migratory path, averaging 135° in autumn and 315° in spring. The average birds’ groundspeed was 14 m/s (50 km/h) in spring and 13 m/s (47 km/h) in autumn.</p> <p><em>Key words: Israel, radar, nocturnal bird migration.</em><em></em></p>

Brodogradnja ◽  
2019 ◽  
Vol 70 (3) ◽  
pp. 1-23
Author(s):  
Francesko Mauro ◽  
◽  
Luca Braidotti ◽  
Giorgio Trincas

2019 ◽  
Vol 511 ◽  
pp. 465-480 ◽  
Author(s):  
Isabelle Baconnais ◽  
Olivier Rouxel ◽  
Gabriel Dulaquais ◽  
Marie Boye

2015 ◽  
Vol 11 (1) ◽  
Author(s):  
Mar Melero ◽  
José Luis Crespo-Picazo ◽  
Consuelo Rubio-Guerri ◽  
Daniel García-Párraga ◽  
José Manuel Sánchez-Vizcaíno

2015 ◽  
Vol 34 (1) ◽  
pp. 37-53 ◽  
Author(s):  
Jan Degirmendžić ◽  
Krzysztof Kożuchowski

Abstract The article presents the results of the analysis of precipitation in Poland associated with cyclones moving from the Mediterranean Sea to East-Central Europe (Mediterranean Cyclonal Precipitation - MCP). The MCP accounts for about 10% of the total amount of precipitation in Poland. Average daily sum of MCP constitutes approximately 150% of daily amount of all precipitation in Poland. The MCP amount reaches its maxima at the end of April and in the mid-August. The highest MCP occurs in the Carpathians and the Sudetes as well as over stripes of land extending northward and covering the central-western and eastern parts of the country. In the years 1958-2008, the mean annual MCP was characterized by a significant decreasing trend - the MCP sum reduced by 29 mm, i.e. ca. 42% of its multiannual value.


Brodogradnja ◽  
2019 ◽  
Vol 70 (3) ◽  
pp. 1-23 ◽  
Author(s):  
Francesko Mauro ◽  
◽  
Luca Braidotti ◽  
Giorgio Trincas

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