Advances of Unmanned Aerial Vehicles in Hydrology

Dear Colleagues,

The hydrologic sciences have long depended on a combination of in situ ground-based measurements and remote sensing satellite data or airborne data from manned aircrafts. During the last several decades, unmanned aerial vehicles (UAVs) have become the bridge to fill gaps in the above methods and brought a revolution in the field of hydrology. In many cases, these tools are the only available method, as they can be used in dangerous and inaccessible locations. In addition, UAVs are often more cost-effective than remote sensing datasets and require less time than demanding field measurements. This Special Issue aims to gather UAV applications of different technologies and methods in order to provide cost-effective hydrologic monitoring, assessment and modeling.

We invite researchers in hydrology to contribute original research papers, review articles and empirical studies which will stimulate debate in the topic. Potential topics include, but are not limited to, the following:

• Channels’ geomorphological mapping, monitoring and analysis;
• Coastal and deltas surveying;
• Flood monitoring and analysis;
• Image-based velocimetry;
• Multispectral sensors and water indices;
• River stage and water depth;
• Thermal cameras and algal blooms;
• UAVs on hydrologic engineering;
• UAV-based sensors for water pollution.

Dr. Paschalis Koutalakis
Dr. Ourania Tzoraki
Guest Editors

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