RT Journal Article
T1 Automatic measurement of water height in the As Conchas (Spain) reservoir using sentinel 2 and aerial LiDAR data
A1 González Jorge, Higinio
A1 González De Santos, Luis Miguel
A1 Martínez Sánchez, Joaquín
A1 Sánchez Rodríguez, Ana
A1 Lorenzo Cimadevila, Henrique Remixio
K1 2502.9 Cambio climático
K1 3311.02 Ingeniería de Control
AB A methodology for the measurement of height in water reservoirs is developed. It is based on Sentinel 2 imagery and aerial LiDAR data. The methodology is automatized using Matlab software and focused on image processing techniques (equalization, binarization, and edge detection) combined with LiDAR data processing (near neighbour search and height averaging). It is applied in a region of interest selected by the user characterized by a water–land interface. Results are validated in the As Conchas water reservoir (Spain) using an in situ sensing system provided by the Hydrographic Miño-Sil Confederation. The duration of the experiment was one year. The Sentinel 2 bands B2, B3, B4, and B8 were tested during this study. The best results for water height evaluation were obtained for band B8 (842 nm) with an error of 0.20 m and a standard deviation of 0.17 m. The time resolution of the technique depends on the Sentinel 2 revisit time. The time resolution and height accuracy could be improved using complementary satellite systems
PB Remote Sensing
SN 20724292
YR 2018
FD 2018-06-08
LK http://hdl.handle.net/11093/1629
UL http://hdl.handle.net/11093/1629
LA eng
NO Remote Sensing, 10(6): 902 (2018)
NO Xunta de Galicia | Ref. ED431C2016‐038
DS Investigo
RD 25-abr-2025