Документы

Рассмотрены вопросы, связанные с проблемой колебаний уровня Каспийского моря и их влияний на прибрежную зону казах-станского сектора. По данным картирования спутниковых снимков площадь осушения в северо-восточной части Каспийского моря в период между 2005 и 2015 гг. составила 5055 км2. В некоторых районах море отступило на 25 км

The article examines recent Caspian Sea level change by using both satellite radar altimetry and satellite gravity data. The altimetry record for 2002–2015 shows a declining level at a rate that is approximately 20 times greater than the rate of global sea level rise. Seasonal fluctuations are also much larger than in the world oceans. With a clearly defined geographic region and dominant signal magnitude, variations in the sea level and associated mass changes provide an excellent way to compare various approaches for processing satellite gravity data. 

Average precipitation and evaporation in the Caspian Sea in 2000-2015.

Created by Manana Kurtabadze.

TKM: Proposed North-South Railway Project - Environmental Assessment Report. Based on its 2007 Presidential Decree, the Government of Turkmenistan (GT) signed a multilateral agreement in 2007, with its neighboring countries to construct new railway tracks to develop the North-South railway corridor for promoting regional trade, cooperation and integration. This is the region’s key route for transporting bulk goods, such as oil and oil products, mineral resources, agricultural products, and textiles.

The significance of the Project is that the proposed north-south railway line will improve Turkmenistan's accessibility to Kazakhstan, the Arabian Gulf countries, the Russian Federation, and South Asia; and increase regional trade. The Project will also contribute to sustainable economic growth in Turkmenistan and development of an integrated, efficient railway system in the region. The Project will reduce the transport cost, cut travel time, and improve accessibility to rural areas of the country. This will generate benefits beyond railway transport cost and time savings.

This study is an attempt to develop an integrated methodology to predict the impact of the Caspian Sea on flooding using Geographic Information Systems (GIS) and hydrodynamic modeling. A rise in the sea level might lead to major flooding events, and have a severe impact on the spatial development of cities and regions. The feasibility of simulating a flood event along a drain channel is evaluated near residential development areas along the Chapakroud drain.

The study shows that at these elevations environmental and social problems arise with regards to the drain. The results also indicate that GIS is an effective tool for floodplain visualization and analysis. It should be noted that the mixture of salt and soft water, as a result of rising sea water level, is a problem that was not investigated in this study and should be examined in the future.