Evolution of the Delta of the Sefidrud River, Iranian Caspian Sea Coast, From Space Imagery

Krasnozhon, G. F.; Lahijani, Hamid; Voropayev, Grigoriy V.

doi:10.1080/07493878.1999.10642127

Cited by 6 publications

(3 citation statements)

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“…Krasnozhon, Lahijani, and Voropayev (1999) studied the evolution of the Sefidrud River delta (Caspian Sea) using remote-sensing data and brought out the sediment deposition on land dynamics. Blanchard, Rogan, and Woodcock (2010) In the present study, the nature of erosion and accretion dynamics around the Talashil spit configuration has been remarkable in various years.…”

Section: Erosion and Accretion Activitiesmentioning

confidence: 99%

“…The decadal-scale change detection using time-series analysis was established by several earlier studies (Krasnozhon, Lahijani, and Voropayev 1999;Byrd, Kelly, and Dyke 2004;Reed 2006;Xian, Homer, and Aldridge 2012). Yu et al (2011) studied shoreline migration in west central Florida using Landsat images of 1987 to 2008 for coastal zone development studies.…”

Section: Decadal Growth Trend (2003-2013)mentioning

confidence: 99%

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Remote-sensing perspective and GPR subsurface perception on the growth of a recently emerged spit at Talashil coast, west coast of India

Loveson

Khare

Sundararajan

et al. 2014

GIScience & Remote Sensing

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The growth as well as the internal structure of the recently emerged Talashil spit along the west coast of India was studied using multidate satellite images coupled with ground-penetrating radar (GPR) information. Decadal changes (2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013) in configuration, geomorphology and erosion and accretion pockets along the spit were traced and compared. A 170 m long subsurface profile across the spit from shoreline to river shore was generated using GPR. Historical satellite images from 1973 to 2013 illustrate a rapid transformation of a linear sand bar into a matured spit. The growth trend over the period 2003-2013 shows mainly accretion along the seashore and erosion along the river shore. Three dynamic hot spot locations were noticed where erosion and accretion were alternately dominating. The radar facies clearly distinguishes zones of fluvial, dune and inter-tidal dominance and substantiates the interpretation of the satellite images. This study indicates spit formation following build up and emergence of a submerged shoal due to fluvial sedimentation, after which an equilibrium between erosion and accumulation was reached. The data indicate that the growth of the spit has reached its mature stage and only lateral oscillation of the spit is likely in the future unless sizable disturbances caused by either tectonic or anthropogenic processes influence this region. IntroductionRemote sensing of the environment provides multitemporal information on periodical changes in land cover and landform caused by the dynamic nature of the land-surface processes. This type of change-detection study through time-series images of a landform/ land cover factually reveals its various evolutionary stages in the past years and subsequently provides better scope to predicate its future growth trend. In this context, the multitemporal satellite images and aerial photographs are being widely used for changedetection mapping to study seasonal dynamics of land surfaces in order to assess and understand land-surface processes (Reed 2006). Several studies have demonstrated the change-detection assessment in short term and multidecadal periods, particularly in coastal areas as related to shoreline changes (Sridhar, Elangovan, and Suresh

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Section: Erosion and Accretion Activitiesmentioning

confidence: 99%

Section: Decadal Growth Trend (2003-2013)mentioning

confidence: 99%

Remote-sensing perspective and GPR subsurface perception on the growth of a recently emerged spit at Talashil coast, west coast of India

Loveson

Khare

Sundararajan

et al. 2014

GIScience & Remote Sensing

View full text Add to dashboard Cite

show abstract

“…The Sefidrud course has been frequently changed between the Anzali and Amirkola lagoons (Kousari, 1986). The last major avulsion had occurred in AD 1600 when the river course was shifted from the east, near the present Amirkola Lagoon, towards the west near the current Kiashahr Lagoon (Krasnozhon et al, 1999;Lahijani et al, 2009;Kazancı and Gulbabazadeh, 2013). The Sefidrud before the latest avulsion is known as Old Sefidrud and New Sefidrud (or Sefidrud) after avulsion.…”

Section: Metal Sourcementioning

confidence: 99%

Discrimination of Heavy Metal Sources in the Sefidrud Delta Coastal Lagoons, Caspian Sea, N Iran: A Statistical Approach

Rafiei

Ahmadi-Ghomi

Seif

et al. 2021

Preprint

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Amirkola (more than 500 years in age), Kiashahr and Zibakenar (a few decades in age) lagoons are located on the Sefidrud Delta, the southern coast of the Caspian Sea. Evaluating the pollution degree caused by heavy metals (including Cu, Cr, Co, Ni, Pb, Zn and V), 106 sediment samples and three sediment cores were taken from studied lagoons. Three indices, including geo-accumulation index (Igeo), contamination factor (CF), and pollution load index (PLI), were employed to determine the contamination degree in the lagoons. Based on contamination indices, the Kiashahr and Zibakenar lagoons show significant to moderate contamination with Co, Cu, Pb, Zn and V. Nonparametric statistical analysis (Two-step cluster analysis, analysis of variance, and T-test technique) was used to discriminate the pollution sources. Statistical methods indicated the unique interpretation of contaminants sources. There is a significant difference in metal concentrations between Amirkola and two younger lagoons. Despite the same geogenic origin of sediments in the Sefidrud Delta and lagoons deposits, Co, Zn, and Pb show anthropogenic sources in the newly-formed Kiashahr and Zibakenar lagoons.

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Contamination assessment and spatial distribution of heavy metals in the Sefidrud Delta coastal lagoons, Caspian Sea, N Iran

Rafiei

Ahmadi-Ghomi

Seif

et al. 2023

Environ Monit Assess

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Evolution of the Delta of the Sefidrud River, Iranian Caspian Sea Coast, From Space Imagery

Cited by 6 publications

References 0 publications

Remote-sensing perspective and GPR subsurface perception on the growth of a recently emerged spit at Talashil coast, west coast of India

Remote-sensing perspective and GPR subsurface perception on the growth of a recently emerged spit at Talashil coast, west coast of India

Discrimination of Heavy Metal Sources in the Sefidrud Delta Coastal Lagoons, Caspian Sea, N Iran: A Statistical Approach

Contamination assessment and spatial distribution of heavy metals in the Sefidrud Delta coastal lagoons, Caspian Sea, N Iran

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