FLOOD DISASTER STUDIES: A REVIEW OF REMOTE SENSING PERSPECTIVE IN CAMBODIA

IF 0.7 Q4 GEOGRAPHY, PHYSICAL

Geographia Technica Pub Date : 2020-11-16 DOI:10.21163/gt_2021.161.02

Chhuonvuoch Koem, S. Tantanee

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引用次数: 4

Abstract

Flood is the most critical natural disaster in Asia. It is also the most affected disaster in Cambodia. The solution must be made to manage the disaster from being interrupting people. The purposes of the study are to identify the 2011 flood impact spatial distribution, evaluate how RS has been applied to flood analysis, and assess the gaps of RS for flood analysis over Cambodia. The flood impact can be calculated by using a weighted arithmetic mean (WAM). The flood studies can be accessed through several literary databases. The 2011 flood impacts commonly located in the regions of Tonle Sap and Mekong River. Furthermore, other regions were affected. Fourteen articles have been found, which are six flood hazard mappings, seven flood risk assessments, and one flood damage assessment. Most of the study covered the Mekong River and Tonle Sap Lake catchments; however, there are still lacking studies over other affected areas. Besides, flood forecasting and flood early warning were not paid attention. Due to the limitation of rain gauge stations, RS is very important to apply for flood studies. Likewise, the radar composite with the neighboring countries is useful since some parts of the borders were blocked by the mountains. In brief, this review could generate greater ideas and solutions for further flood studies efficiency. Key-words: Flood, Remote Sensing, GIS, TRMM, Cambodia

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柬埔寨水灾研究的遥感视角

洪水是亚洲最严重的自然灾害。这也是柬埔寨受灾最严重的灾难。必须制定解决方案，防止灾难打扰人们。本研究的目的是确定2011年柬埔寨洪水影响的空间分布，评估遥感技术在洪水分析中的应用情况，并评估遥感技术在柬埔寨洪水分析中的差距。洪水的影响可以用加权算术平均值(WAM)来计算。洪水研究可以通过几个文学数据库访问。2011年的洪水影响主要集中在洞里萨湖和湄公河地区。此外，其他地区也受到影响。共发现14篇文章，其中6篇是洪水灾害图，7篇是洪水风险评估，1篇是洪水灾害评估。大部分研究覆盖了湄公河和洞里萨湖流域;然而，对其他受影响地区的研究仍然缺乏。此外，洪水预报和洪水预警不被重视。由于雨量站的限制，RS在洪水研究中非常重要。同样，与周边国家的雷达合成也是有用的，因为部分边界被山脉挡住了。总之，这篇综述可以为进一步的洪水研究提供更好的思路和解决方案。关键词:洪水，遥感，GIS, TRMM，柬埔寨

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来源期刊

Geographia Technica GEOGRAPHY, PHYSICAL-

CiteScore

2.30

自引率

14.30%

发文量

期刊介绍： Geographia Technica is a journal devoted to the publication of all papers on all aspects of the use of technical and quantitative methods in geographical research. It aims at presenting its readers with the latest developments in G.I.S technology, mathematical methods applicable to any field of geography, territorial micro-scalar and laboratory experiments, and the latest developments induced by the measurement techniques to the geographical research. Geographia Technica is dedicated to all those who understand that nowadays every field of geography can only be described by specific numerical values, variables both oftime and space which require the sort of numerical analysis only possible with the aid of technical and quantitative methods offered by powerful computers and dedicated software. Our understanding of Geographia Technica expands the concept of technical methods applied to geography to its broadest sense and for that, papers of different interests such as: G.l.S, Spatial Analysis, Remote Sensing, Cartography or Geostatistics as well as papers which, by promoting the above mentioned directions bring a technical approach in the fields of hydrology, climatology, geomorphology, human geography territorial planning are more than welcomed provided they are of sufficient wide interest and relevance.