A5021666941- Cryospheric studies and observations
- Arctic and Antarctic ice dynamics
- Climate change and permafrost
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Soil Moisture and Remote Sensing
- Ocean Waves and Remote Sensing
- Satellite Image Processing and Photogrammetry
- Semiconductor materials and interfaces
- Geophysics and Gravity Measurements
- Landslides and related hazards
- Precipitation Measurement and Analysis
- Remote Sensing and Land Use
- Silicon Carbide Semiconductor Technologies
- GaN-based semiconductor devices and materials
- Winter Sports Injuries and Performance
Pusan National University
2019-2023
Kwangwoon University
2021
Lava flows from volcanoes can significantly destroy infrastructure, although they rarely threaten human life. Mapping lava is essential to managing the volcanic hazard during eruptions and understanding significant changes in geomorphology after eruptions. In 2018, eruption of Kilauea, Hawaii's youngest most active volcano, destroyed more than 700 homes, farmlands, roads. Active flow tracking crucial for providing timely warnings evacuate residents protect infrastructure. We constructed a...
Glacier velocity is a critical factor closely related to ice dynamics of the Greenland sheet (GrIS). We present variations using space-based synthetic aperture radar (SAR) observations from July 2013 September 2020. focus on tidewater outlet glacier Narsap Sermia (NS), located in southwest Greenland, which experiencing significant loss. A time series high spatiotemporal resolution maps was traced by an offset tracking approach with seven-year SAR acquisitions understand time. observed...
Monitoring of land subsidence is important to protect invaluable lives and properties. Although terrestrial observations such as Global Positioning System (GPS) survey can provide very accurate surface's displacement at a point with high temporal resolution, it has limitation apply for observation vast areas. Differential radar interferometry enables us retrieve spatial deformation map Synthetic Aperture Radar (SAR) observations. Especially we calculate time-series using the Small BAseline...
Recent concerns of the global system have focused on climate change and rising sea levels directly related to glacier loss from warming. Multi-temporal synthetic aperture radar (SAR) observations enable us provide dramatic changes over a very wide swath glacier. Although differential interferometry (DInSAR) can estimate accurate movement, it is often suffered coherence due significant temporal volume decorrelation. Hence, we used intensity offset tracking, which capable apply even if...
ABSTRACT This study report on the formation of AlN/SiC heterostructure Schottky diodes for use temperature sensing applications enhance sensitivity. We analyzed sensitivity diode sensor depending annealing temperature. AlN/4H-SiC were fabricated by depositing aluminum nitride (AlN) thin film 4H/SiC radio frequency sputtering. The forward bias electrical characteristics determined under DC (in voltage range 0–1.5 V). ideality factor, barrier height, and derived through...