Remote Sensing in Hydrology and Extremes

Hydrology, the scientific study of water's movement, distribution, and management, is a field of paramount importance both on Earth and other planets. Today, hydrology not only encompasses traditional studies of the water cycle and water resource management but also incorporates the challenges of sustaining diverse and dynamic water environments. Recent advancements in remote sensing have revolutionized this field, offering expansive coverage and detailed data on hydrological variables and extremes. This technology has been pivotal for global climate monitoring—as seen in global precipitation measures and snow cover monitoring—highlighting crucial evidence of climate change.

This Research Topic aims to explore the transformative impact of remote sensing in hydrology, particularly through its contribution to understanding and managing hydrological states, phenomena, and processes. The key questions driving this research include how remote sensing can further hydrological science, the integration of diverse datasets, and the development of new hydrological theories and models to manage the vast data generated by remote sensing and other technologies such as UAVs and hydrological sensor webs.

To gather further insights in this broad and dynamic field, we welcome articles addressing, but not limited to, the following themes:

• Novel methodologies for retrieving hydrological variables using remote sensing;
• Remote sensing data revealing the spatiotemporal dynamics of extreme hydrological events;
• Multi-sensor data fusion techniques for enhancing the quality of hydrological data;
• Contributions of remote sensing to hydrological model accuracy and applicability;
• Innovative remote sensing applications, including the use of CubeSats in hydrology.