Results 31 to 40 of about 319,423 (174)

Satellite-derived bathymetry using machine learning and optimal Sentinel-2 imagery in South-West Florida coastal waters

GIScience & Remote Sensing, 2022
This study examines the use of the Multi-Spectral Instrument (MSI) in Sentinel-2 satellite in combination with regression-based random forest models to estimate bathymetry along the extended southwestern Florida nearshore region.
S.S.J.D. Mudiyanselage, A. Abd-Elrahman, B. Wilkinson, V. Lecours   +3 more
doaj   +1 more source

Evaluating Multispectral Imagery and Lidar Data for Vegetation Classification: A Comparative Assessment of UASs and Traditional Field Methods to Support Coastal Restoration Monitoring

Remote Sensing
There is growing interest in uncrewed aircraft system (UAS) technology to supplement coastal restoration monitoring, yet it’s unclear how UAS data products compare to traditional field monitoring data that are fundamental to restoration programs. In this
Molly K. Reif, Aaron N. Schad, Joseph H. Harwood, Christopher L. Macon, Lynde L. Dodd   +4 more
doaj   +1 more source

Development of a Lightweight Single-Band Bathymetric LiDAR

Remote Sensing, 2022
Traditional bathymetry LiDAR (light detection and ranging) onboard manned and/or unmanned airborne systems cannot operate in the context of narrow rivers in urban areas with high buildings and in mountainous areas with high peaks.
Guoqing Zhou, Xiang Zhou, Weihao Li, Dawei Zhao, Bo Song, Chao Xu, Haotian Zhang, Zhexian Liu, Jiasheng Xu, Gangchao Lin, Ronghua Deng, Haocheng Hu, Yizhi Tan, Jinchun Lin, Jiazhi Yang, Xueqin Nong, Chenyang Li, Yiqiang Zhao, Cheng Wang, Lieping Zhang, Liping Zou   +20 more
doaj   +1 more source

Comparison of Field and Virtual Vegetation Surveys Conducted Using Uncrewed Aircraft System (UAS) Imagery at Two Coastal Marsh Restoration Projects

Remote Sensing
Traditional field vegetation plot surveys are critical for monitoring ecosystem restoration performance and include visual observations to quantitatively measure plants (e.g., species composition and abundance).
Aaron N. Schad, Molly K. Reif, Joseph H. Harwood, Christopher L. Macon, Lynde L. Dodd, Katie L. Vasquez, Kevin D. Philley, Glenn E. Dobson, Katie M. Steinmetz   +8 more
doaj   +1 more source

Quantifying Dynamics in Tropical Peat Swamp Forest Biomass with Multi- Temporal LiDAR Datasets [PDF]

, 2013
Tropical peat swamp forests in Indonesia store huge amounts of carbon and are responsible for enormous carbon emissions every year due to forest degradation and deforestation.
Juilson Jubanski, Jubanski, Juilson, Florian Siegert, Siegert, Florian, Englhart, Sandra, Sandra Englhart   +5 more
core   +1 more source

HHU24SWDSCS: a shallow-water depth model over island areas in the South China Sea retrieved from satellite-derived bathymetry [PDF]

Earth System Science Data
Accurate shallow-water depth information for island areas is crucial for maritime safety, resource exploration, ecological conservation, and offshore economic activity.
Y. Wu, H. Shi, D. Jia, O. B. Andersen, X. He, Z. Luo, Y. Li, S. Chen, X. Si, S. Diao, Y. Shi, Y. Chen   +11 more
doaj   +1 more source

Quantitative Evaluation of Bathymetric LiDAR Sensors and Acquisition Approaches in Lærdal River in Norway

Remote Sensing, 2023
The development of bathymetric LiDAR technology has contributed significantly to both the quality and quantity of river bathymetry data. Although several bathymetric LiDAR sensors are available today, studies that evaluate the performance of the ...
Mahmoud Omer Mahmoud Awadallah, Christian Malmquist, Morten Stickler, Knut Alfredsen   +3 more
doaj   +1 more source

Evaluation of ULS Bathymetry for Hydrodynamic Modelling [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The importance of accurate and reliable DTMs are paramount for hydrodynamic modelling. Currently, bathymetry is either not considered or a simpler mathematical representation of the river is created from observed cross sections for hydrodynamic models ...
J. C. Haines, M. V. Peppa, C. Iliadis, J. P. Mills, V. Glenis, G. Mandlburger   +5 more
doaj   +1 more source

Analysis of MABEL Bathymetry in Keweenaw Bay and Implications for ICESat-2 ATLAS

Remote Sensing, 2016
In 2018, the National Aeronautics and Space Administration (NASA) is scheduled to launch the Ice, Cloud, and land Elevation Satellite-2 (ICESat-2), with a new six-beam, green-wavelength, photon-counting lidar system, Advanced Topographic Laser Altimeter ...
Nicholas A. Forfinski-Sarkozi, Christopher E. Parrish   +1 more
doaj   +1 more source

First Application of a Coastal‐Dune Model (AeoLiS) to Simulate Fluvial‐Aeolian Morphodynamics

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Quantifying aeolian processes is important to decision‐making in river management and for optimizing strategies for ecosystem conservation, natural resource management, and recreation. We applied the AeoLiS aeolian transport model, originally developed for coastal environments, to a dryland river corridor to evaluate its ability to simulate ...
M. M. Kelley, J. B. Sankey, N. Cohn, A. East, A. Kasprak, H. Fairley, J. Caster, B. van Westen   +7 more
wiley   +1 more source