土耳其阿西盆地植被指数NDVI和VCI的评价

IF 0.8 4区工程技术 Q4 ENGINEERING, CIVIL

Teknik Dergi Pub Date : 2021-07-01 DOI:10.18400/tekderg.590356

M. Dikici, M. Aksel

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引用次数: 10

摘要

气候变化和全球变暖是人类未来最关心的问题之一。尽管采取了措施，但干旱和洪水风险仍在增加，这导致近年来对水管理问题达成了一项综合谅解。为了管理日益增加的干旱风险并制定可持续的规划，应该首先了解干旱的规模。为此，制定了许多干旱指数。遥感测定的归一化植被指数（NDVI）和植被状况指数（VCI）就是其中的两个。在这项研究中，考虑到历史干旱档案，用植被指数分析了农业干旱。本研究使用了从中分辨率成像光谱仪（MODIS）和高级甚高分辨率辐射计（AVHRR）卫星获得的面积为7800平方公里的阿西盆地数据。卫星受益于遥感，并在确定植被层的环境信息协调会（CORINE）的帮助下，分别对农业和森林地区进行了评估。植被指数随着温度的升高而变化，揭示了阿西盆地长期干旱管理的必要性。研究结果表明，NDVI指数比VCI指数更适合于阿西盆地的干旱监测。

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Evaluation of Two Vegetation Indices (NDVI and VCI) Over Asi Basin in Turkey

Climate change and global warming are among the issues that humanity is most concerned about the future. The growing drought and flood risks that increase despite the taken measures have led to the adoption of an integrated understanding on the topic of water management in recent years. To manage the increased risk of drought and to make sustainable planning, the dimensions of drought should be known first. For this purpose, many drought indices have been developed. The Normalized Difference Vegetation Index (NDVI) and Vegetation Condition Index (VCI), which determined by remote sensing, are two of these. In this study, in which the agricultural drought was analyzed with vegetation indices by taking into consideration the historical drought archive, the Asi Basin was addressed. The data of the Asi Basin, which covers an area of 7800 km 2 and was obtained from the Moderate Resolution Imaging Spectroradiometer (MODIS) and Advanced Very High-Resolution Radiometer (AVHRR) satellites, was used in this study. With the satellites benefited in remote sensing and with the Coordination of Information on the Environment (CORINE), where the layers of vegetation were determined, agricultural and forest areas were evaluated separately. The vegetation indices, which change with the increase in temperature, have revealed the necessity of a long-term drought management for the Asi Basin. Result of the work pointed that NDVI index is more appropriated to the Asi Basin than the VCI index to monitor drought.

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来源期刊

Teknik Dergi 工程技术-工程：土木

自引率

30.80%

发文量

审稿时长

>12 weeks

期刊介绍： The scope of Teknik Dergi is naturally confined with the subjects falling in the area of civil engineering. However, the area of civil engineering has recently been significantly enlarged, even the definition of civil engineering has somewhat changed. Half a century ago, engineering was simply defined as “the art of using and converting the natural resources for the benefit of the mankind”. Today, the same objective is expected to be realised (i) by complying with the desire and expectations of the people concerned and (ii) without wasting the resources and within the sustainability principles. This change has required an interaction between engineering and social and administrative sciences. Some subjects at the borderline between civil engineering and social and administrative sciences have consequently been included in the area of civil engineering. Teknik Dergi defines its scope in line with this understanding. However, it requires the papers falling in the borderline to have a significant component of civil engineering.