Crowdsourced approaches for stage measurements at ungauged locations using smartphones
Crowdsourced approaches for stage measurements at ungauged locations using smartphones
复制标题
使用智能手机在未测量位置进行舞台测量的众包方法
DOI：
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复制
发表时间：
2020
影响因子：
3.5
通讯作者：
I. Demir
中科院分区：
文献类型：
--
作者：
Y. Sermet;P. Villanueva;M. Sit;I. Demir
摘要 带有先进传感器的智能设备的日益普及增加了环境监测公民科学应用的机会。准确而广泛的河流水位监测对于水资源建模至关重要。预测研究中的模型校准和验证需要可靠的数据点。虽然当前的嵌入式监控系统提供准确的测量，但在大范围内复制这些系统的成本非常昂贵，限制了可用数据的数量。该项目描述了一种使用智能手机传感器精确测量河流水位的新方法。拍摄河流表面同一点的照片，并根据智能手机的 GPS 位置和空间方向进行计算。所提出的实施方案比现有的水测量系统更容易实现，同时提供相似的精度。进行案例研究以评估测量结果对距离变化的准确性和敏感性。
ABSTRACT The growing availability of smart devices with advanced sensors has increased the opportunities for citizen science applications for environmental monitoring. Accurate and widespread monitoring of river stage is vital for modeling water resources. Reliable data points are required for model calibration and validation in forecast studies. While current embedded monitoring systems provide accurate measurements, the cost to replicate these systems on a large domain is prohibitively expensive, limiting the quantity of data available. This project describes a new method to accurately measure river levels using smartphone sensors. Pictures of the same point on the river’s surface are taken to perform calculations based on the GPS location and spatial orientation of the smartphone. The proposed implementation is significantly more accessible than existing water measuring systems while offering similar accuracy. A case study is performed to evaluate the accuracy and sensitivity of the measurements to changes in distance.
通过近距离数字摄影测量测量动态和洪水泛滥的河面
DOI：
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发表时间：
2008
期刊：
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影响因子：
--
作者：
J Chadler
通讯作者：
J Chadler