报告人：Anshuman Bhardwaj(高级讲师)

时间：2022.11.28 15:00-16:30

Zoom会议：817-316-94666

密码：见邮件或班级通知

报告人简介

Anshuman Bhardwaj is a Senior Lecturer of Earth Observation and Planetary Sciences at the University of Aberdeen. He specializes in remote sensing of cryosphere, and other planetary surfaces and landforms. Anshuman has previously worked at Snow and Avalanche Study Establishment (India), Luleå University of Technology (LTU) (Sweden), and United Arab Emirates University (UAEU). In recent years, he has led research activities on integrating remote sensing and field data to understand the impact of climate change on Himalayan glacio-hydrology, spatial and non-spatial data integration and modelling, and use of Unmanned Aerial Vehicles (UAVs) for environmental research.

报告简介

Field-based cryosphere research has its own spatiotemporal and logistic limitations, and therefore, remote sensing has always played a significant role in understanding the frozen components of the Earth system. However, conventional spaceborne or airborne remote sensing platforms have their own merits and limitations. Hence, Unmanned aerial vehicles (UAVs) have emerged as a viable and inexpensive option for studying the cryosphere components at unprecedented spatiotemporal resolutions. UAVs are adaptable to various cryosphere research needs in terms of providing flexibility with data acquisition windows, revisits, data/sensor types (multispectral, hyperspectral, microwave, thermal/night imaging, Light Detection and Ranging (LiDAR), and photogrammetric stereos), viewing angles, flying altitudes, and overlap dimensions. In recent years, a number of studies using UAVs for cryosphere research have been published. Therefore, we need to constantly review and discuss the methodological advancements, hardware and software improvements, results, and future prospects of such cryosphere studies. This talk will derive some key observations from three of our review articles on this topic, covering the most recent applications of UAVs within glaciology, snow, permafrost, and polar research to support the continued development of high-resolution investigations of cryosphere. We will also take a look at the UAV and sensor hardware, and data acquisition and processing software in terms of popularity.