Results 81 to 90 of about 3,051 (183)

Quantifying uncertainty in flood predictions due to river bathymetry estimation [PDF]

Hydrology and Earth System Sciences
River bathymetry is important for accurate flood inundation modelling but is often unavailable due to the time-intensive and expensive nature of its acquisition. This leads to several proposed and implemented approaches for its estimation.
M. Nguyen, M. Nguyen, M. Nguyen, M. D. Wilson, M. D. Wilson, E. M. Lane, J. Brasington, J. Brasington, R. A. Pearson   +8 more
doaj   +1 more source

Does Hyperspectral Imagery Improve Satellite-Derived Bathymetry? A Case Study from a Posidonia oceanica-Dominated Mediterranean Region

Remote Sensing
Coastal bathymetric mapping is essential for marine conservation, navigation, and environmental management. Satellite-derived bathymetry (SDB) is a cost-effective solution to mapping bathymetry over large shallow areas. However, traditional multispectral
Rosemary Jones, Anders Knudby
doaj   +1 more source

Bathymetry SLAM using reduced rank Gaussian Processes and DVL range measurements: For real-time underwater position estimation

, 2022
Underwater position estimation is challenging due to the absence of Global Navigation Satellite System (GNSS) signals. Underwater vehicles are typically equipped with a Doppler Velocity Log (DVL) that measures the velocity relative to the seafloor. Aside
Looman, Danny (author)
core  

Framework for reservoir sedimentation estimation using the hydrological model and campaign—A case study of A Vuong reservoir in central Vietnam

International Journal of Sediment Research
Sediment estimation would help practice sustainable watershed management and efficient reservoir operation. Different methods exist to estimate reservoir sedimentation based on the differences in sediment yield flowing in and releasing from the reservoir
Binh Quang Nguyen, Sameh A. Kantoush, Ngoc Duong Vo, Tetsuya Sumi   +3 more
doaj   +1 more source

The use of imaging systems to monitor shoreline dynamics

, 2005
The development of imaging systems is nowadays established as one of the most powerful and reliable tools for monitoring beach morphodynamics. Two different techniques for shoreline detection are presented here and, in one case, applied to the study of ...
Coco, Giovanni, Payne, G., Bryan, Karin R., Dolphin, Tony J., Dolphin, T., Rickard, Darcel, Ramsay, D.   +6 more
core  

SONOGRAFIA E BATIMETRIA DE VARREDURA DO CANAL DA BARRA DA LAGOA [PDF]

, 2015
TCC(graduação) - Universidade Federal de Santa Catarina. Centro de Filosofia e Ciências Humanas. OceanografiaNo presente estudo foi realizado o levantamento batimétrico e sonográfico do Canal da Barra da Lagoa através de um sonar interferométrico.
Carazzai, Daniel
core  

Evaluation of optical remote sensing-based shallow water bathymetry for recursive mapping

, 2017
Water depth estimation using optical remote sensing offers a reliable and efficient means of mapping coastal zones. Here, we aim to find a suitable model for fast and practical bathymetry of an estuary using Indian Remote Sensing Satellite (IRS) Linear ...
Nidhi Gahlot, Ganesh Prusty, Lydia Sam
core   +1 more source

BATHYMETRY EXTRACTION FROM SPOT 7 SATELLITE IMAGERY USING RANDOM FOREST METHODS

, 2019
The scope of this research is the application of the random forest method to SPOT 7 data to produce bathymetry information for shallow waters in Indonesia.
Br. Ginting, Devica Natalia, Rosid, Syamsu, Anggraini, Nanin, Setiawan, Kuncoro Teguh, Suwargana, Nana, Supardjo, Agustinus Harsono, Adawiah, Syifa Wismayati, Julzarika, Atriyon, Surahman, Surahman, Manessa, Masita Dwi Mandini   +9 more
core   +1 more source

Estimation of total vertical uncertainty for the bathymetry acquired by autonomous underwater vehicle in deep water

, 2013
Total vertical uncertainty (TVU) for the bathymetry acquired by multibeam echo sounder deployed on Autonomous Underwater Vehicle (AUV) in deep water was estimated.
Minami, Hiroki
core  

Lake Water Storage and Long-Term Variation of Nganga Rinco on the Tibetan Plateau Revealed by ICESat-2 and Satellite Imagery

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Lake storage in Nganga Rinco serves as a crucial indicator of climate change and is significant for the ecological environment. This study combines ICESat-2, the Global Surface Water dataset, and geographic interpolation to derive lake bathymetry and ...
Yunmei Li, Qianqian Chen, Shiqiang Zhang, Yuanzheng Cui, Chang Huang   +4 more
doaj   +1 more source