| 基于Google Earth Engine的蒙古国1985年至2023年间地表水体的时空变化分析 |
| 投稿时间：2024-08-14 修订日期：2024-08-31 点此下载全文 |
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| 中文摘要:水是人类社会发展生产的基础资源。随着遥感技术与云计算技术的不断发展,Google Earth Engine(GEE)平台成为了大规模和长期的分析地表水体,地表水体制图的重要手段。本研究采用Landsat 5 TM和Landsat 8 OLI卫星数据,分析了1985年至2023年期间6月至9月的蒙古国地表水体的时空变化特征。研究结果表明,在研究1985年至2023年间,蒙古国地表水体的面积呈下降趋势,稳定水体从 15547.71 平方千米缩减至 14452.13平方千米,其中大型水体则保持相对稳定,变化主要发生在小型湖泊和河流。本文的分析结果可为深入了解蒙古国的生态环境变化提供了重要的基础,并为准确预测蒙古国未来的水资源和环境变化以及为水资源的有效管理和保护提供了方向。 |
| 中文关键词:地表水体 Landsat卫星 GEE 时空分布 蒙古国 |
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| Spatial-temporal variations of surface water area during 1985–2023 in Mongolia based on Google Earth Engine |
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| Abstract:Water is a fundamental resource for the development and production of human society. With the continuous development of remote sensing technology and cloud computing, the Google Earth Engine (GEE) platform has become an important means for large-scale and long-term analysis and mapping of surface water bodies. This study utilized Landsat 5 TM and Landsat 8 OLI satellite data to analyze the spatiotemporal variation characteristics of surface water bodies in Mongolia from June to September between 1985 and 2023. The research findings indicate a declining trend in the area of surface water bodies in Mongolia from 1985 to 2023, with stable water bodies decreasing from 15,547.71 square kilometers to 14,452.13 square kilometers. This change primarily occurred in small lakes and rivers, while large water bodies remained relatively stable. The analytical results of this study provide an important foundation for a deeper understanding of the ecological environment changes in Mongolia. Furthermore, they offer guidance for accurately predicting future changes in water resources and the environment in Mongolia and for the effective management and protection of water resources. |
| keywords:Surface water Landsat GEE Spatial-temporal variations Mongolia |
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