Cryogenic Landslides in Paragenetic Complexes of Slope and Channel Processes in the Central Yamal Peninsula

2013 ◽  
pp. 291-308
Author(s):  
Anatoliy Gubarkov ◽  
Marina Leibman ◽  
Maria Andreeva
Keyword(s):  
Yamal Peninsula ◽  
Channel Processes

scholarly journals Ecological state of water bodies and their water protection zones within the boundaries of settlements of the Yamal Peninsula

2021 ◽  
Vol 265 ◽  
pp. 02009
Author(s):  
Roman Kolesnikov
Keyword(s):  
Industrial Development ◽  
Anthropogenic Pollution ◽  
Water Bodies ◽  
Yamal Peninsula ◽  
Household Waste ◽  
Water Protection ◽  
Channel Processes ◽  
Protection Zones ◽  
State Of Water ◽  
The Yamal Peninsula

Most of the population of the Yamal Peninsula lives in settlements located on the banks of rivers. The increasing industrial development of the Yamal Peninsula leads to the fact that in these settlements in the water area and on the shores, objects of the fuel and energy complex are being built and functioning. At the same time, the contribution to water pollution of settlements located here, as well as objects of transport and fuel and energy infrastructure, is still unclear. On the other hand, the issues of intensifying the processes of coastal destruction and the related danger to residential and economic infrastructure are increasingly being discussed. However, the degree of activation of these processes on the Yamal Peninsula is also poorly understood. During the study, the state of water bodies and water protection zones was monitored for the period from 2016 to 2020. It was found that at present no significant anthropogenic pollution of water and bottom sediments is recorded. The content of pollutants and heavy metals is mainly determined by natural conditions. At the same time, the water protection zones are littered with scrap metal and household waste. Activation of channel processes and processes of abrasion and thermal abrasion of the banks is observed. The intensity of coastal destruction processes in the erosion zone varies from 0.25 to 0.85 m/year.

MONITORING OF THE THERMOABRASIONAL AND ACCUMULATIVE COASTS NEAR THE UNDERWATER GAS PIPELINE ROUTE ACROSS THE BAYDARATSKAYA BAY, KARA SEA

2017 ◽  
Author(s):  
Nataliya Belova ◽  
Nataliya Belova ◽  
Alisa Baranskaya ◽  
Alisa Baranskaya ◽  
Osip Kokin ◽  
...  
Keyword(s):  
Thermal Regime ◽  
Storm Surges ◽  
Gas Pipeline ◽  
The Arctic ◽  
Yamal Peninsula ◽  
Permafrost Degradation ◽  
Nearshore Zone ◽  
Barrier Beach ◽  
Energy Dissipater ◽  
Pipeline Route

The coasts of Baydaratskaya Bay are composed by loose frozen sediments. At Yamal Peninsula accumulative coasts are predominant at the site where pipeline crosses the coast, while thermoabrasional coast are prevail at the Ural coast crossing site. Coastal dynamics monitoring on both sites is conducted using field and remote methods starting from the end of 1980s. As a result of construction in the coastal zone the relief morphology was disturbed, both lithodynamics and thermal regime of the permafrost within the areas of several km around the sites where gas pipeline crosses coastline was changed. At Yamal coast massive removal of deposits from the beach and tideflat took place. The morphology of barrier beach, which previously was a natural wave energy dissipater, was disturbed. This promoted inland penetration of storm surges and permafrost degradation under the barrier beach. At Ural coast the topsoil was disrupted by construction trucks, which affected thermal regime of the upper part of permafrost and lead to active layer deepening. Thermoerosion and thermoabrasion processes have activated on coasts, especially at areas with icy sediments, ice wedges and massive ice beds. Construction of cofferdams resulted in overlapping of sediments transit on both coasts and caused sediment deficit on nearby nearshore zone areas. The result of technogenic disturbances was widespread coastal erosion activation, which catastrophic scale is facilitated by climate warming in the Arctic.

MONITORING THE DYNAMICS OF THERMOABRASION COASTS AT KHARASAVEY AREA, WESTERN YAMAL (KARA SEA)

2017 ◽  
Author(s):  
Dmitry Kuznetsov ◽  
Dmitry Kuznetsov ◽  
Anatoliy Kamalov ◽  
Anatoliy Kamalov ◽  
Nataliya Belova ◽  
...  
Keyword(s):  
Human Impact ◽  
Remote Sensing Data ◽  
Kara Sea ◽  
Motor Vehicles ◽  
Yamal Peninsula ◽  
Western Coast ◽  
Frozen Ground ◽  
Coastal Dynamics ◽  
The North ◽  
Ice Content

The dynamics of thermoabrasion coasts on loose sediments under permafrost conditions are highly variable due to several factors: length of the dynamic period of the year, mechanic composition of the frozen ground and its ice content, hydrometeorological conditions, and human impact. Multiannual monitoring of the coastal zone was carried out by Lab. Geoecology of the North (Moscow State University) at the 22 km long Kharasavey deposit site, Western Coast of Yamal Peninsula (Kara Sea). The methods include direct measurements and observations (repeated topographic survey of shore transects from 1981 to 2012) along with remote sensing data analysis (images from 1964 to 2011). This allowed producing detailed characteristics of coastal dynamics. At the site, thermoabrasion coasts occupy the most part, and accumulative coasts are present in the north. Data on natural relief forming factors and ground composition are included in the detailed geomorphologic map of the site. Shore retreat rate shows correlation to amounts of wind-wave energy and to specific wind directions. Human impact on the coast includes dredging at the port channel, mining of sand, driving motor vehicles, and deposition of construction debris. Relations between shore retreat rate and aforementioned factors were studied, including dependencies on ice content, and shore segmentation was carried out. This allows for coastal dynamics forecasts in the region.

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