Climate Change Impact of the Caspian Sea Level Changes in the Quaternary Sediment

2016 ◽  
Vol 5 (0) ◽  
pp. 1 ◽  
Author(s):  
Alireza Ghodrati ◽  
Payam Alemi Safaval ◽  
Mir Ahmad Lashteh Neshaei
2014 ◽  
pp. 145-155 ◽  
Author(s):  
Abdolmajid Naderi Beni ◽  
Hamid Lahijani ◽  
Morsen Pourkerman ◽  
Rahman Jokar ◽  
Muna Hosseindoust ◽  
...  

2012 ◽  
Vol 9 (11) ◽  
pp. 16663-16704
Author(s):  
S. A. G. Leroy ◽  
H. A. K. Lahijani ◽  
J.-L. Reyss ◽  
F. Chalié ◽  
S. Haghani ◽  
...  

Abstract. We analysed dinoflagellate cyst assemblages in four short sediment cores, two of them dated by radionuclides, taken in the south basin of the Caspian Sea. The interpretation of the four sequences is supported by a collection of 27 lagoonal or marine surface sediment samples. A sharp increase in the biomass of the dinocyst occurs after 1967, especially owing to Lingulodinium machaerophorum. Considering nine other cores covering parts or the whole of Holocene, this species started to develop in the Caspian Sea only during the last three millennia. By analysing instrumental data and collating existing reconstructions of sea level changes over the last few millennia, we show that the main forcing of the increase of L. machaerophorum percentages and of the recent dinocyst abundance is global climate change, especially sea surface temperature increase. Sea level fluctuations likely have a minor impact. We argue that the Caspian Sea has entered the Anthropocene.


2021 ◽  
Author(s):  
Omid Memarian Sorkhabi

Abstract Today, despite the satellite altimetry, it is possible to determine the average sea level and determine the sea level change with high accuracy. In this research, data from 1992-2017 TOPEX / Poseidon, Jason1, OSTM and Jason3 altimeter satellites in the Caspian Sea have been used. The results show that every year the average of 75 mm of the Caspian Sea water level decreases and the downward trend.


2021 ◽  
Author(s):  
Omid Memarian Sorkhabi

Abstract Today, despite the satellite altimetry, it is possible to determine the average sea level and determine the sea level change with high accuracy. In this research, data from 1992-2017 TOPEX / Poseidon, Jason1, OSTM and Jason3 altimeter satellites in the Caspian Sea have been used. The results show that every year the average of 75 mm of the Caspian Sea water level decreases and the downward trend.


2021 ◽  
Vol 100 (1) ◽  
pp. 70-77
Author(s):  
N.I. Ivkina ◽  
◽  
A.V. Galayeva ◽  
◽  

The article considers the possible fluctuation of the Caspian Sea level in the future until 2050, taking into an account the climate changes. For this purpose, possible changes in the river inflow to the sea and meteorological parameters (precipitation, air temperature and evaporation from the water surface) were predicted. Changes in the meteorological parameters were estimated according to two climate scenarios RCP4. 5 and RCP8.5.


2013 ◽  
Vol 70 ◽  
pp. 28-47 ◽  
Author(s):  
Suzanne A.G. Leroy ◽  
Ata A. Kakroodi ◽  
Salomon Kroonenberg ◽  
Hamid K. Lahijani ◽  
Habib Alimohammadian ◽  
...  

2019 ◽  
Vol 69 (11-12) ◽  
pp. 1287-1310
Author(s):  
Samaneh Lesani ◽  
Mohammad Hossein Niksokhan

Water ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 108
Author(s):  
Vassilios Pisinaras ◽  
Charalampos Paraskevas ◽  
Andreas Panagopoulos

Coastal delta plains are areas with high agricultural potential for the Mediterranean region because of their high soil fertility, but they also constitute fragile systems in terms of water resources management because of the interaction of underlying aquifers with the sea. Such a case is the Pinios River delta plain located in central Greece, which also constitutes a significant ecosystem. Soil and Water Assessment Tool (SWAT) and SEAWAT models were combined in order to simulate the impact of current water resources management practices in main groundwater budget components and groundwater salinization of the shallow aquifer developed in the area. Moreover, potential climate change impact was investigated using climate data from Regional Climate Model for two projected periods (2021–2050 and 2071–2100) and two sea level rise scenarios (increase by 0.5 and 1 m). Modeling results are providing significant insight: although the contribution of the river to groundwater inflows is significant, direct groundwater recharge from precipitation was found to be higher, while capillary rise constitutes a major part of groundwater outflows from the aquifer. Moreover, during the simulation period, groundwater flow from the aquifer to the sea were found to be higher than the inflows of seawater to the aquifer. Regarding climate change impact assessment, the results indicate that the variability in groundwater recharge posed by the high variability of precipitation during the projected periods is increasing the aquifer’s deterioration potential of both its quantity and quality status, the latter expressed by the increased groundwater Cl− concentration. This evidence becomes more significant because of the limited groundwater storage capacity of the aquifer. Concerning sea level rise, it was found to be less significant in terms of groundwater salinization impact compared to the decrease in groundwater recharge and increase in crop water needs.


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