scholarly journals The upper beech forest line in the Steneto Biosphre Reserve on the northern slopes of the Stara Planina Mts. (Central Bulgaria)

2014 ◽  
Vol 61 (2) ◽  
pp. 273-280
Author(s):  
Stefan Michalik
Keyword(s):  
Sea Level ◽  
Beech Forest ◽  
Northern Slope ◽  
Southern Slope ◽  
Complicated Shape ◽  
Mountain Valley ◽  
Forest Line

The upper beech forest line has a very complicated shape in a mountain valley running in the W-E direction. On the shady northern slope it reaches an average of 1659 m above sea level, while on the insolated southern slope, about 1760 m. It was found and proven statistically that the altitude of the boundary is dependent on the relative isolation (r = 0.309, α = 0.01), exposition and relief of the territory.

RADIOCARBON DATING DYNAMICS OF LANDSLIDES IN THE UPPER REACHES OF THE MZYMTA RIVER BASIN (WESTERN CAUCASUS)

2018 ◽  
pp. 66-72
Author(s):  
Yu. K. Vasil’chuk ◽  
E. S. Slyshkina ◽  
A. V. Bershov
Keyword(s):  
River Basin ◽  
Radiocarbon Dating ◽  
Northern Slope ◽  
Southern Slope ◽  
Western Caucasus ◽  
Ancient Landslide

The article contains materials on the study of landslide deposits in the upper reaches of the Mzymta river basin. The results of14C analysis showed that the youngest landslides are common on the southern slope of the Psekhako Ridge and date back to less than 200 and 390±90, 400±70 years ago BP and more than 770±150 years BP. The most ancient landslide-collapse on the northern slope of the Aibga Ridge and dates back to 1110±90 years BP.

Fecundity of the American Plaice, Hippoglossoides platessoides (Fabr.) from Grand Bank and Newfoundland Areas

1964 ◽  
Vol 21 (3) ◽  
pp. 597-612 ◽  
Author(s):  
T. K. Pitt
Keyword(s):  
Egg Production ◽  
Fish Length ◽  
Northern Slope ◽  
Southern Slope ◽  
Ovary Weight ◽  
Length Relationship ◽  
Relationship Of ◽  
Hippoglossoides Platessoides

Fecundity estimates were made on a total of 140 mature American plaice from the southern and northern slopes of the Grand Bank and from St. Mary's Bay. Log–log relationships were established between fecundity and fish length, gutted and gilled weight, age, and ovary weight. No differences were found to exist between the fecundity–length relationship of plaice from the three areas, but there is a suggestion that within areas there may be annual differences in egg production. At comparable ages plaice from the southern slope of the Grand Bank are larger in size and produce more eggs than those from the northern slope and St. Mary's Bay.

The Excavation of the Long Mortuary Enclosure on Normanton Down, Wilts

1961 ◽  
Vol 27 ◽  
pp. 160-173 ◽  
Author(s):  
Faith De Mallet Vatcher
Keyword(s):  
Sea Level ◽  
Average Height ◽  
Southern Slope

The Long Mortuary Enclosure on Normanton Down was excavated by the writer on behalf of the Ministry of Works throughout October, 1959. Originally a rectangular-ditched enclosure with internal banks, the banks had been completely ploughed out and the surface indications were so slight as to be visible only at certain times.The National Grid reference is SU 115411. The Enclosure is situated on the Upper Chalk of the Salisbury Plain on a gradual southern slope, at an average height of 320 feet above sea level.

scholarly journals Modeling study on the transport of summer dust and anthropogenic aerosols over the Tibetan Plateau

2015 ◽  
Vol 15 (21) ◽  
pp. 12581-12594 ◽  
Author(s):  
Y. Liu ◽  
Y. Sato ◽  
R. Jia ◽  
Y. Xie ◽  
J. Huang ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Radiation Transport ◽  
Eastern China ◽  
Taklimakan Desert ◽  
The Tibetan Plateau ◽  
Northern Slope ◽  
Southern Slope ◽  
Anthropogenic Aerosols ◽  
Anthropogenic Aerosol ◽  
Dust Aerosols

Abstract. The Tibetan Plateau (TP) is located at the juncture of several important natural and anthropogenic aerosol sources. Satellites have observed substantial dust and anthropogenic aerosols in the atmosphere during summer over the TP. These aerosols have distinct effects on the earth's energy balance, microphysical cloud properties, and precipitation rates. To investigate the transport of summer dust and anthropogenic aerosols over the TP, we combined the Spectral Radiation-Transport Model for Aerosol Species (SPRINTARS) with a non-hydrostatic regional model (NHM). The model simulation shows heavily loaded dust aerosols over the northern slope and anthropogenic aerosols over the southern slope and the east of the TP. The dust aerosols are primarily mobilized around the Taklimakan Desert, where a portion of the aerosols are transported eastward due to the northwesterly current; simultaneously, a portion of the particles are transported southward when a second northwesterly current becomes northeasterly because of the topographic blocking of the northern slope of the TP. Because of the strong upward current, dust plumes can extend upward to approximately 7–8 km a.s.l. over the northern slope of the TP. When a dust event occurs, anthropogenic aerosols that entrained into the southwesterly current via the Indian summer monsoon are transported from India to the southern slope of the TP. Simultaneously, a large amount of anthropogenic aerosol is also transported from eastern China to the east of the TP by easterly winds. An investigation on the transport of dust and anthropogenic aerosols over the plateau may provide the basis for determining aerosol impacts on summer monsoons and climate systems.

Sea-level related resedimentation processes on the northern slope of Little Bahama Bank (Middle Pleistocene to Holocene)

Sedimentology ◽  
2007 ◽  
Vol 54 (6) ◽  
pp. 1307-1322 ◽  
Author(s):  
HENDRIK LANTZSCH ◽  
SVEN ROTH ◽  
JOHN J. G. REIJMER ◽  
HANNO KINKEL
Keyword(s):  
Sea Level ◽  
Middle Pleistocene ◽  
Northern Slope

scholarly journals Modeling study on the transport of summer dust and anthropogenic aerosols over the Tibetan Plateau

2015 ◽  
Vol 15 (10) ◽  
pp. 15005-15037 ◽  
Author(s):  
Y. Liu ◽  
Y. Sato ◽  
R. Jia ◽  
Y. Xie ◽  
J. Huang ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Radiation Transport ◽  
Model Simulation ◽  
Eastern China ◽  
Taklimakan Desert ◽  
The Tibetan Plateau ◽  
Northern Slope ◽  
Southern Slope ◽  
Anthropogenic Aerosols ◽  
Dust Aerosols

Abstract. The Tibetan Plateau (TP) is located at the juncture of several important natural and anthropogenic aerosol sources. Satellites have observed substantial dust and anthropogenic aerosols in the atmosphere during summer over the TP. These aerosols have distinct effects on the earth's energy balance, microphysical cloud properties, and precipitation rates. To investigate the transport of summer dust and anthropogenic aerosols over the TP, we combined the Spectral Radiation-Transport Model for Aerosol Species (SPRINTARS) with a non-hydrostatic regional model (NHM). The model simulation shows heavily loaded dust aerosols over the northern slope and anthropogenic aerosols over the southern slope and to the east of the TP. The dust aerosols are primarily mobilized around the Taklimakan Desert, where a portion of the aerosols are transported eastward due to the northwesterly current; simultaneously, a portion of the particles are transported northward when a second northwesterly current becomes northeasterly because of the topographic blocking of the northern slope of the TP. Because of the strong upward current, dust plumes can extend upward to approximately 7–8 km a.s.l. over the northern slope of the TP. When a dust event occurs, anthropogenic aerosols that entrain into the southwesterly current via the Indian summer monsoon are transported from India to the southern slope of the TP. Simultaneously, a large amount of anthropogenic aerosols is also transported from eastern China to east of the TP by easterly winds. An investigation on the transport of dust and anthropogenic aerosols over the plateau may provide the basis for determining aerosol impacts on summer monsoons and climate systems.

scholarly journals Radio flare on η Gemini Star

1990 ◽  
Vol 137 ◽  
pp. 145-146 ◽  
Author(s):  
P.M. Herouni ◽  
V.S. Oskanian
Keyword(s):  
Sea Level ◽  
General View ◽  
Southern Slope ◽  
Optical Telescope ◽  
The World ◽  
Main Mirror ◽  
Radio Flare

The first at the world Radio-Optical Telescope ROT-32/54/2, 6 was mounted on the southern slope of Mount Aragats in Armenia at 1700 m above sea level. The Large Antenna of ROT with the unmovable hemisperical main mirror of 54 m in diameter and movable small correcting mirror is the extremely accurate and shortwave (down to 1 mm). Using aperture is 32m. The diameter of the Optical Telescope is 2.6 m. General view of ROT is shown in Fig.1.

scholarly journals Vegetation analysis of the subalpine beech forest on the upper forest line in the Julian Alps (NW Slovenia and NW Italy) and in the northern Dinaric Alps

Hacquetia ◽  
2021 ◽  
Vol 20 (2) ◽  
pp. 373-564
Author(s):  
Igor Dakskobler ◽  
Andrej Rozman
Keyword(s):  
Vascular Plants ◽  
Beech Forest ◽  
Group Method ◽  
Beech Forests ◽  
Pair Group ◽  
Julian Alps ◽  
Phytosociological Relevés ◽  
Nw Italy ◽  
Steep Slopes ◽  
Forest Line

Abstract Using hierarchical clustering with unweighted pair-group method with arithmetic mean (UPGMA) we arranged 603 phytosociological relevés of beech forests on the present upper forest line, mainly from the Julian Alps and the Trnovo Forest Plateau (we also included the relevés from the Karawanks and the Kamnik Alps), into 32 clusters. Based on their analysis and comparison with previously described similar (alti)montane-subalpine beech communities we classified most of the relevés into the association Polysticho lonchitis-Fagetum and its new subassociations ericetosum carneae, cardaminetosum trifoliae, luzuletosum niveae, luzuletosum luzuloidis, calamagrostietosum variae, allietosum victorialis, adoxetosum moschatellinae, stellarietosum nemorum and several new variants. The altitude of the studied stands is predominantly 1400 to 1550 m (the upper line is at 1660 m); they occur at all aspects, frequently on steep and very steep slopes, mainly on limestone and dolomite limestone, the predominant soil type is rendzina. These stands are species rich (on average 61 species per relevé, altogether more than 500 vascular plants) and have many species in common with the stands of associations Rhododendro hirsuti-Fagetum and Rhodothamno-Laricetum.

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