相关实验视频
Updated: May 24, 2025

12:44
Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
7.9K
通过基于使用谷歌地球引擎的新型水体索引的数据分析,制定印度喀拉拉邦阿什塔穆迪湖的恢复建议
Ameena Salim1, Arathi Rajeev1, Sneha Prabha Perumkuni1
1TKM College of Engineering, Kollam, 691005, Kerala, India.
概括
一个新的混合指数,WIBI,使用遥感精确监测湖泊面积变化和水质. 这种方法有助于制定湖泊复苏策略,比如阿什塔穆迪湖.
科学领域:
- 环境监测环境监测环境监测
- 遥感应用 遥感应用
- 水文学和石灰岩技术
背景情况:
- 持续监测水体对于水文和生态健康至关重要.
- 现有的用于湖泊划界的遥感方法存在局限性,特别是在有大量建成土地的地区.
- 湖泊动态的变化需要准确有效的监测技术.
研究的目的:
- 开发和验证混合指数 (WIBI) 以加强湖面面积和动态监测.
- 通过遥感和现场数据评估阿什塔穆迪湖的水质参数.
- 将拟议WIBI的表现与NDWI和SWIR等现有指数进行比较1.
主要方法:
- 一个混合指数,水指数构建指数 (WIBI),是通过从规范差异构建指数 (NDBI) 中减去规范差异水指数 (NDWI) 来得出的.
- 来自谷歌地球引擎的遥感数据被用来评估湖泊面积,温度,度和叶绿素含量.
- 使用水质分析仪收集的现场数据确定了诸如pH值,总溶解固体 (TDS),导电性和盐度等参数.
主要成果:
- WIBI有效地划分了湖泊区域并捕获了动态,与NDWI和SWIR1.1相比,显示了更好的准确性.
- 遥感数据与对关键水质参数的现场测量有很好的相关性.
- 该研究成功监测了阿什塔穆迪湖的物理范围和水质.
结论:
- 拟议的WIBI提供了一种更准确的方法来监测湖泊面积和动态.
- 综合遥感和现场数据提供了对水质的全面评估.
- 这些发现支持制定有效的湖泊复苏策略,阿什塔穆迪湖就是一个例子.
相关概念视频
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
36
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
36
Responses to Drought and Flooding
10.6K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.6K
Design Example: Creating a Hydraulic Model of a Dam Spillway
116
Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.
116

