Pre-Estimation of Vulnerability to Society & Economics due to Natural Disasters & Hazards: A Case Study of Ulaanbaatar, Mongolia

DOI

10.2991/978-94-6463-278-1_17How to use a DOI?

Keywords

Settlement zones; Damages & Risks; Ger area; Natural Disaster; Flood and explosion risks

Abstract

As of 2018, the population of Ulaanbaatar city has reached 1,491 thousand people, which is 387 thousand families due to increased movement from rural areas to urban areas, and around 60% of them belong to Ger areas. This survey included about the people living in the 9, 10, 12 Khoroo territories of the Chingeltei district as well as in the vicinity of Denjiin myanga. For, sociological research estimated their property damage caused due to flood risk, explosion near areas of petrol stations, & expansion of settlement zones. The expansion of the settlement zone of Denjiin myanga has been determined by three factors. Such as size of territory, surface slope, average height of surface. The settlement zones of the ger areas have constantly expanded from 1975 to 2010 and thus increased 4.6 times and became 5.6 km2 as of 2010. The surface slopes of Ger areas were divided into four categories i.e. Very suitable (less than 30), suitable (3-60), poorly suitable (6-80), and not suitable (more than 80). 51.2% of the Ger area is in the Very suitable zone and 48.8% area is in the poorly suitable and not suitable zone. The average height of the settlement zone of Ger areas has increased between 1975 & 2010 at 1330 m and 1510 m, respectively. Therefore, the increase in height over the 35-year span was 180 m. The pre estimated damages and risks caused by natural disasters, flood and explosion risks of petrol stations, and the initial results were obtained for the living area of Denjiin myanga. The estimation showing that the possible danger would hit 717 people of 171 families, thus the risk would count 989 million tugrugs. Finally, based on the assessment, it is proven that a certain extent of loss and damage from possible risks is likely to occur when this assessment is calculated in only small areas of Denjiin Myanga of Chingeltei District. As research continues, there will be a possibility of risks from mountain and rain floods, as well as the risk of a petrol station in the vicinity of the six districts of Ulaanbaatar.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Download article (PDF)

TY  - CONF
AU  - Enkh-Amgalan Sandag
AU  - Svetlana M. Malkhazova
AU  - Oyunchimeg Tugjjav
AU  - Natalia V. Emelianova
AU  - Doljinsuren Erdenedelger
PY  - 2023
DA  - 2023/10/29
TI  - Pre-Estimation of Vulnerability to Society & Economics due to Natural Disasters & Hazards: A Case Study of Ulaanbaatar, Mongolia
BT  - Proceedings of the Fourth International Conference on Environmental Science and Technology (EST 2023)
PB  - Atlantis Press
SP  - 172
EP  - 181
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-278-1_17
DO  - 10.2991/978-94-6463-278-1_17
ID  - Sandag2023
ER  -