Study of Mesoscale Processes in the Shelf Zone of the Black Sea Using Remote. Techniques

1984 ◽  
pp. 149-157
Author(s):  
R.V. Ozmidov ◽  
V.I. Zatz
Keyword(s):  
Black Sea ◽  
Shelf Zone ◽  
The Black Sea ◽  
Mesoscale Processes

Modelling of the ecosystem of the Black-Sea shelf zone near the estuary of the Danube

2001 ◽  
Vol 11 (6) ◽  
pp. 509-524 ◽  
Author(s):  
V. A. Ivanov ◽  
S. P. Lyubartseva ◽  
N. Mikhailova ◽  
N. B. Shapiro
Keyword(s):  
Black Sea ◽  
Shelf Zone ◽  
The Black Sea

GPS-drifters for study of water dynamics in the Black Sea shelf zone

Oceanology ◽  
2016 ◽  
Vol 56 (1) ◽  
pp. 150-156 ◽  
Author(s):  
K. P. Silvestrova ◽  
S. A. Myslenkov ◽  
A. G. Zatsepin ◽  
E. V. Krayushkin ◽  
V. I. Baranov ◽  
...  
Keyword(s):  
Black Sea ◽  
Water Dynamics ◽  
Shelf Zone ◽  
The Black Sea

scholarly journals Mean dynamic topography of the black sea, computed from altimetry, drifters measurements and hydrology data

2011 ◽  
Vol 8 (2) ◽  
pp. 701-722 ◽  
Author(s):  
A. A. Kubryakov ◽  
S. V. Stanichny
Keyword(s):  
Sea Level ◽  
Black Sea ◽  
The Black Sea ◽  
Dynamic Topography ◽  
Mean Dynamic Topography ◽  
Sea Level Anomalies ◽  
Temporal Features ◽  
Geostrophic Velocities ◽  
Mesoscale Processes

Abstract. Mean Dynamic Topography (MDT) is a crucial parameter for estimating dynamic topography, and, therefore, geostrophic circulation from satellite altimetry Sea Level Anomalies (SLA). In this work we use drifting buoy measurements, hydrographic profiles and SLA to reconstruct MDT of the Black Sea by "synthetic" method. Obtained mean dynamic topography shows higher gradients of sea level and resolves a lot of mesoscale processes in comparison to previous works, mostly based on climatic hydrological measurements. Verification of dynamic topography determined by altimetry SLA and estimated MDT, with independent dynamic heights and drifter buoy velocities shows good quantitative and qualitative coincidence for all Black Sea basin and improvements compare to previous fields of MDT. New MDT for the Black Sea will improve quality of altimetry derived geostrophic velocities for better understanding of the spatial and temporal features of the upper layer dynamics.

scholarly journals Ichthyoplankton of The Shelf and Deep Water Areas of the North and Northeast of the Black Sea in The Spring Season

2021 ◽  
Vol 21 (05) ◽  
pp. 255-263
Author(s):  
Tatyana Klimova ◽  
Irina Vdodovich ◽  
Polina Podrezova
Keyword(s):  
Black Sea ◽  
Hydrological Regime ◽  
Shelf Zone ◽  
The Black Sea ◽  
Commercial Fishing ◽  
The Caucasus ◽  
Crimean Peninsula ◽  
The North ◽  
Younger Age ◽  
Water Species

This paper is focused on the ichthyoplankton species composition and spatial distribution in the Black sea shelf zone and the deepwater regions off Crimean Peninsula and coast of the Caucasus during the spring hydrological season. Recent changes in the hydrological regime of the Black sea induced by the climate warming have led to an extension of the active and productive spawning of the dominant temperate-water species Sprattus sprattus until the end of the spring hydrological season. An intensive spawning of sprat was detected in March, April and May 2016, 2017 and 2019, which was confirmed by a predominance of younger age group larvae. The maximum number of eggs reached 224 ind./m2 , and the larvae - 116 ind./m2. The wide size range of larvae as well as the low proportion of larvae with empty guts evidenced a favorable fodder base for their survival. The reduction in the age and sizeweight composition of sprat stock in the Black sea observed since 2016 as a result of an increase in its commercial fishing on the shelf of the Crimean Peninsula, did not affect sprat’ spawning activity.

Marine environmental monitoring in the shelf zone of the Black Sea: Assessment of the current state of the pelagic ecosystem

Oceanology ◽  
2015 ◽  
Vol 55 (6) ◽  
pp. 871-876 ◽  
Author(s):  
E. G. Arashkevich ◽  
N. E. Louppova ◽  
A. B. Nikishina ◽  
L. A. Pautova ◽  
V. K. Chasovnikov ◽  
...  
Keyword(s):  
Environmental Monitoring ◽  
Black Sea ◽  
Shelf Zone ◽  
The Black Sea ◽  
Pelagic Ecosystem ◽  
Current State ◽  
Marine Environmental

scholarly journals Dynamics of chlorophyll a concentration in the Black Sea on satellite data

2019 ◽  
Vol 4 (2) ◽  
pp. 87-95 ◽  
Author(s):  
Z. Z. Finenko ◽  
I. M. Mansurova ◽  
V. V. Suslin
Keyword(s):  
Chlorophyll A ◽  
Black Sea ◽  
Satellite Data ◽  
Large Scale ◽  
Mixed Layer Depth ◽  
Chlorophyll Concentration ◽  
Shelf Zone ◽  
The Black Sea ◽  
Convective Mixing ◽  
Stability Of Water

The use of satellite data to study the chlorophyll a dynamics, in contrast to contact methods, allows carrying out large scale research with high frequency of measurements. Such observations were carried out in the Black Sea offshore and inshore areas from 1998 to 2015. They made it possible to estimate the annual and interannual chlorophyll a dynamics in the surface layer and to reveal the periodicity, intensity, and duration of mass development of algae. In the western and eastern cyclonic gyres as well as in the shelf zone off the Crimean and Caucasus coasts, annual chlorophyll dynamics had the same pattern as that repeating year after year. From August-September to April-May of the next year the variation of chlorophyll in most cases corresponded to normal distribution and had a form of a bell-shaped curve with maximum observed in December-January. During autumn period, the chlorophyll concentration gradually increased with water cooling and seasonal pycnoclyne weakening. In winter the chlorophyll concentration decreased due to increase of mixed layer depth. Spring phytoplankton intensive development was observed every year when convective mixing weakened and stability of water column increased.

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