Specific Features of Development of the Modern Sulak River Delta

Михайлов, В. Н.; Kravtsova, V. I.; Magritskii, D. V.

doi:10.1023/b:ware.0000021573.53909.d7

Cited by 10 publications

(9 citation statements)

References 1 publication

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“…Such delta can be clearly seen in the map compiled under the supervision of admiral S.I. Nagaev in 1793 and published in 1796 [35]. The later breaking of the river through the coastal barrier accumulative forms (barrier bars and wave cut bars) into the open sea could be facilitated by water level rise in river delta, caused by the protrusion of Sulak chan nel into the shallow Agrakhanskii Bay, and the high sea …”

Section: The History Of Evolution Of the Sulak Mouth Before The Formamentioning

confidence: 93%

“…Later, Sulak delta started rapidly protruding into the sea, which seems to be facilitated by the complete turn of the river toward the open sea. By 1920, the length and the area of the primary delta have reached ~7.5 km and 18 km 2 , respectively [17,35]. The reverse extrapolation of the plot of the Sulak delta area increase (Fig.…”

Section: The Initial Stage Of Formation Of the Present Day Sulak Deltamentioning

confidence: 97%

“…The area of the New Delta has reached ~1.8 km 2 by 1962 and ~5.0 km 2 by 1978 [17]. In period 1957-1977, sea level dropped by 0.67 m. This should have caused a small passive pro trusion of the Old Delta (at the nearshore bed slope i nsh = 1.7‰ [35]) and by 394 m in the zone of the New Delta 1.5‰ by 447 m and a protrusion by 394 m near the New Delta (at i nsh = 1.7‰ [35]). The New Delta of the Sulak protruded by 1.7 km in this period, the fact that demonstrates the predominance of active protrusion of the New Delta of the Sulak into the sea in that time (the active protrusion accounted for ~77% of the total).…”

Section: Changes In the Regime And Structure Of The Sulak Delta In Thmentioning

confidence: 99%

“…MIKHAILOV et al 59], State Hydrological Institute (SHI) [62], and Astrakhan Reserve [10, 11] collected a vast body of data on this object; the late XX-the early XXI, when studies were carried out by Geographic Faculty, MSU; SOI, and Water Problems Institute, RAS (WPI RAS) [3, 20, 21, 27, 33, 36, 41, 43, 47, 50-52, 57, 61, 64, 65, 68]. Extensive investigations were also carried out (mostly by SOI, MSU, and WPI RAS) at the mouths of the Terek and Sulak rivers [1,2,4,9,12, 17,24,28,35,38,40,[44][45][46]. Less studied are the processes in the deltas of the Ural [25,26,51,60] and the Kura [1,16,19,34,63].…”

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confidence: 99%

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The response of river mouths to large-scale variations in sea level and river runoff: Case study of rivers flowing into the Caspian Sea

et al. 2012

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Regularities in the response of the mouths of major rivers, flowing into the Caspian Sea, to large scale variations in its level and river water runoff and sediment yield are considered. Changes in the morpho logical structure and hydrological regime of the Volga, Terek, Sulak, Ural, and Kura mouths have been ana lyzed in both geological past and separately for three modern periods: a considerable drop in Caspian Sea level before 1978, its abrupt rise in 1978-1995, and a relative stabilization in the subsequent years. Specific features were identified in the hydrological-morphological processes in different mouths, caused by the dif ferences in river sediment yields, and the slopes of delta surface and mouth nearshore beds. Some theoretical and methodological approaches were verified in the analysis and evaluation of the processes under consider ation. The obtained results of studies of the mouths of rivers flowing into the Caspian Sea can be regarded as examples and analogues in the assessment of processes, which take place at the mouths of other Russian and world rivers at present and can take place in the future under anticipated natural and anthropogenic variations in sea level and river runoff. MIKHAILOV et al. 59], State Hydrological Institute (SHI) [62], and Astrakhan Reserve [10, 11] collected a vast body of data on this object; the late XX-the early XXI, when studies were carried out by Geographic Faculty, MSU; SOI, and Water Problems Institute, RAS (WPI RAS) [3, 20, 21, 27, 33, 36, 41, 43, 47, 50-52, 57, 61, 64, 65, 68]. Extensive investigations were also carried out (mostly by SOI, MSU, and WPI RAS) at the mouths of the Terek and Sulak rivers [1,2,4,9,12, 17,24,28,35,38,40,[44][45][46]. Less studied are the processes in the deltas of the Ural [25,26,51,60] and the Kura [1,16,19,34,63]. The results of studies at the mouths of the Volga, Terek, Sulak, Ural, and Kura were reviewed and generalized in [30,36,37,68].

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Section: The History Of Evolution Of the Sulak Mouth Before The Formamentioning

confidence: 93%

Section: The Initial Stage Of Formation Of the Present Day Sulak Deltamentioning

confidence: 97%

Section: Changes In the Regime And Structure Of The Sulak Delta In Thmentioning

confidence: 99%

mentioning

confidence: 99%

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The response of river mouths to large-scale variations in sea level and river runoff: Case study of rivers flowing into the Caspian Sea

et al. 2012

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“…Later the surveys were used to study the conditions of the evolution of small rivers' deltas [18] during long time periods (500 years). Numerous studies of deltas by using satellite photographs (SP) have been conducted by experts from Moscow State University [1,9,13,14,21,22]. The results of studies of Volga delta in the past decade are given in most detail in [23,24].…”

Section: Introductionmentioning

confidence: 99%

Studying the Delta and Shallow Offshore Zone of the Volga River Based on Space Photographs

Krasnozhon

Ковалев

2005

Water Resour

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The main results obtained by processing satellite photographs of the delta and the shallow offshore mouth area of the Volga made from 1975 to 1997. The study includes electronic treatment of the photographs, zoning of the delta and shallow offshore mouth area, and the evaluation of their main quantitative characteristics. Space and time variations in the boundaries of zones, main landscape components, and the hydrological characteristics (higher aquatic plants, currents, water flow, sediments, etc.). The environmental state of the identified zones and the role of anthropogenic load are estimated.

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Landscape evolution in orogenic plateaus: Insights from quantitative morphotectonic analysis of the Turkish–Iranian Plateau and Caucasus regions

Kaveh‐Firouz,

Burg,

Giachetta

2023

Earth Surf Processes Landf

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To investigate the recent landscape evolution of the orogenic Turkish–Iranian Plateau (TIP) and the Lesser/Greater Caucasus ranges, we perform a quantitative analysis of topography and drainage networks at a regional scale. This analysis focuses on climatic–topographic swath profiles, local relief distribution, longitudinal river profiles, normalized channel steepness index (ksn), paleo‐river profile, and chi analysis (χ). In general, we find that the evolution of topographic relief and river networks are locally controlled by Late Cenozoic volcanism, contrasts in rock strength, and neotectonic activity along regional tectonic structures. However, our results show that the influence of these factors on the landscape evolution of the Greater Caucasus is significantly different from the Lesser Caucasus and TIP. This study shows that a combination of enhanced aridity, rapid uplift of orographic barriers along the TIP margins, and exposure of resistant rock types associated with the regional volcanic activity resulted in low‐relief plateau and the Lesser Caucasus surfaces that are preserved in the upper/middle Kura–Arax and Qezel‐Owzan river catchments. High local relief in the flanks of the Greater Caucasus and west Alborz, downstream increase in channel steepness, and perturbations in the χ plots of the three main rivers indicate that the topography is in a transient state.We reconstruct the paleo‐river profiles from the relict section of the upper Kura–Arax and Qezel‐Owzan rivers and show that the last drastic fall of the Caspian base‐level, which occurred during the Late Miocene–Early Pliocene, can explain the incision of ~500–1000 m gorges (i.e., Amardos) below major knickpoints. Furthermore, local cross‐divide differences of the χ parameter reveal that disequilibrium in the plan‐form geometry of the drainage networks, attributed to the upstream migration of the regional knickpoints towards the plateau interior and integration of plateau areas into the external fluvial system.

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Specific Features of Development of the Modern Sulak River Delta

Cited by 10 publications

References 1 publication

The response of river mouths to large-scale variations in sea level and river runoff: Case study of rivers flowing into the Caspian Sea

The response of river mouths to large-scale variations in sea level and river runoff: Case study of rivers flowing into the Caspian Sea

Studying the Delta and Shallow Offshore Zone of the Volga River Based on Space Photographs

Landscape evolution in orogenic plateaus: Insights from quantitative morphotectonic analysis of the Turkish–Iranian Plateau and Caucasus regions

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