Sökning: "Sentinel-1A"
Visar resultat 1 - 5 av 7 uppsatser innehållade ordet Sentinel-1A.
1. Assessing the suitability of using Sentinel-1A SAR multi-temporal imagery to detect fallow periods between rice crops
Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapSammanfattning : Fallow, understood as a period where no crop is cultivated during a growing season, is an important crop management practice. Fallow plays an important role in pest and disease management, and monitoring the presence and duration of fallow can have implications for understanding the extent and effectiveness of this agricultural practice. LÄS MER
2. Comparing radar satellites. Use of Sentinel-1 leads to an increase in oil spill alerts in Norwegian waters
Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapSammanfattning : Radar’s ability to detect oil spills through clouds, fog, and darkness is a significant advantage. Oil spill alert services using radar satellites have been in use in Norway for more than 25 years. After introducing two radar satellites Sentinel-1A and 1B in 2015-2016, the number of oil spill alerts has increased by 250% in Norwegian waters. LÄS MER
3. Interferometric Synthetic Aperture Radar For Track Condition Monitoring. Case Study on Malmbanan
Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Trafik och vägSammanfattning : There is over 15,000 km of track in the Swedish railroad network. This network is vital for the transport of people and goods across the country. It is important that this network is monitored and maintained to ensure good function and safety. LÄS MER
4. Exploring Spatiotemporal Relationships between InSAR-derived Land Subsidence and Satellite-based Hydrological Variables
Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapSammanfattning : Shabestar basin in the East Azerbaijan province, Northwest Iran, where irrigation is the main groundwater consumer, has experienced large-scale subsidence and groundwater deletion, which poses a threat to the local agricultural activities, economic development, and food security. With the emergency of mitigating the risk, satisfying future demand for groundwater, and improving resilience considering climate change, this study proposes a satellite-based approach to explore the spatio-temporal relationships between measured subsidence and hydrological variables in the basin to assist groundwater management strategy. LÄS MER
5. Feasibility study of dam deformation monitoring in northern Sweden using Sentinel1 SAR interferometry
Magister-uppsats, Högskolan i Gävle/Samhällsbyggnad, GISSammanfattning : Dams are man-made structures that in order to keep functioning and to be considered structurally healthy need constant monitoring. Assessing the deformation of dams can be time consuming and economically costly. LÄS MER
