Assessment of flood control (Monkey's Cheeks) measures in Chao Phraya River Basin | |
| Author | Angsana Chaksan |
| Call Number | AIT Thesis no.RS-19-18 |
| Subject(s) | Flood control--Thailand--Chao Phraya River Basin Chao Phraya River Basin--Thailand--Remote-sensing images |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Remote Sensing and Geographic Information Systems, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | This study focuses on assessment of Flood Control Measure (FCM) of Monkey's Cheeks in CPRB. During 2017 to present, the Royal Irrigation Department has scheduled water management in the lower part of the CPRB. Therefore, the objective of this study was to identify the flood impact before (2008 to 2016) and after (2017 and 2018) FCM and to assess the flood exposure before and after FCM in 2008 to 2018. The data used the flood inundated extent that using daily NRT MODIS water product from NASA. Additional data used in this study include schools, hospitals, residentials, factories and roads for flood exposure and the monthly cumulative rainfall data 2008-2018 from Thai Meteorological Department. The analytical methods are composed of flood changed analysis and spatial analysis. Flood changed data were analyzed by TerrSat system and spatial data were analyzed by ArcMap. The first objective aims to identify the flood impact before (2008 to 2016) and after (2017 and 2018) flood control measures (Monkey's Cheeks). Flood duration is not much changed. Furthermore, we found the flood duration after FCM in 2017 in CPRB lost non flood area around 5 percent when that compared with the flood duration before FCM in 2011. While the flood duration after FCM in 2017 in CPRB gain non flood area that compared with flood area before FCM in 2010, there was non flood area around 0.15 percent. Besides, the flood duration after FCM in 2018 in CPRB compared with the flood duration before FCM in 2009, 2012,2013,2014,2015 and 2016. In this part, flood duration has some changed, but flood duration is not much changed. Thus, The percentage of flood duration changed around 0-1.5 percent. From the this reasons in objective 1, flooded areas before and after FCM is not changed much. This flood prevention measure has allocated areas that flood repeatedly every year. Further, the amount of rainfall in each year is not equal. Some years there are heavy rains caused by the storm and some years there is not enough rainfall that causing drought. Thus, it is not possible to summarize the success of the flood control measures project from the flooded areas that have changed before and after FCM. Moreover, most of the total elements exposed to flood after FCM in 2017 decreased. In addition, the most of elements affected with flood exposure before FCM (2009, 2012, 2013, 2014, 2015, and 2016) and after FCM (2018) in CPRB by the time duration that were highest in the short flood duration. Further, most each element affected by flood after FCM in 2018 decreased. Furthermore, we found flood exposure weighting in each element after FCM decreased. In addition, the weight in each element that was most affected by the flood (Descending order) as residential, road, factory, school and hospital in CPRB. Therefore, most of the residential and road were affected by flooding more than factories, schools and hospitals. Hence, the FCM was successful during the flood in term of flood exposure from reason before. Consequently, the assessment ofFCM (Monkey's Cheeks) in Chao Phraya River Basin was successful during the flood in terms of the elements exposed to the flood decreased, as well as the reduced duration of the floods after FCM. The guidelines suggested in this study for assessment of flood which is mainly depends on satellite images for flood observation provide for good flood assessment. In addition, this study should assess the volume of flood and specific rainfall during the flood. Moreover, this study should assesses the flood exposure in terms of economy. |
| Year | 2019 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Remote Sensing (RS) |
| Chairperson(s) | Sarawut Ninsawat |
| Examination Committee(s) | Pal, Indrajit ;Ochi, Shiro |
| Scholarship Donor(s) | His Majesty the King’s Scholarships (Thailand) |
| Degree | Thesis (M. Sc.) - Asian Institute of Technology, 2019 |