Results 61 to 70 of about 22,964 (247)

Jets and Topography: Jet Transitions and the Impact on Transport in the Antarctic Circumpolar Current [PDF]

, 2012
The Southern Ocean’s Antarctic Circumpolar Current (ACC) naturally lends itself to interpretations using a zonally averaged framework. Yet, navigation around steep and complicated bathymetric obstacles suggests that local dynamics may be far removed from
Andrew F. Thompson, Arbic, Belkin, Boland, Bracco, Böning, Chelton, Chelton, Drijfhout, Ferrari, Fu, Gille, Gille, Haynes, Hogg, Hughes, Jean-Baptiste Sallée, Johnson, Juckes, Langlais, Le Traon, Lenn, Lu, MacCready, Marshall, Marshall, Munk, Nakamura, Nakamura, Naveira Garabato, Nencioli, Nikurashin, Olbers, Orsi, Pavan, Pedlosky, Radko, Rio, Sallée, Sallée, Sallée, Shuckburgh, Smith, Smith, Sokolov, Sokolov, Sokolov, Thompson, Thompson, Thompson, Thompson, Toggweiler, Treguier, Visbeck, Williams, Witter   +55 more
core   +3 more sources

Rapidly declining seagrass meadows in Brazil: Findings from satellite imagery and local knowledge

People and Nature, EarlyView.
Abstract Due to the limitations of individual monitoring approaches, integrating social perceptions with multiple advanced technologies provides a new opportunity to gain a comprehensive understanding of ecosystem degradation. We combined historical aerial mapping, satellite imagery, semi‐structured interviews with local stakeholders, and a bilingual ...
Karine Matos Magalhães, Emma Deeks, Aline da Silva Cerqueira, Gabriel Henrique Ferreira Silva, Fabiana Aguiar Santos, Terry Dawson, Pavel Kratina   +6 more
wiley   +1 more source

Nearshore Bathymetry Based on ICESat-2 and Multispectral Images: Comparison Between Sentinel-2, Landsat-8, and Testing Gaofen-2

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Accurate bathymetric maps are essential to understand marine and coastal ecosystems. With the development of satellite and sensor technology, satellite-derived bathymetry (SDB) has been widely used to measure the depth of nearshore waters.
Xiaohan Zhang, Yifu Chen, Yuan Le, Dongfang Zhang, Qian Yan, Yusen Dong, Wei Han, Lizhe Wang   +7 more
doaj   +1 more source

Monitoring Near-Shore Bathymetry Using a Multi-Image Satellite-Derived Bathymetry Approach [PDF]

, 2015
Two advanced survey systems for hydrographic surveying are multi-beam echsounder (MBES) and airborne lidar bathymetry (ALB). Compared to more traditional hydrographic surveying methods, these systems provide both highly accurate and a dense coverage of ...
Alexander, Lee, Freire, Ricardo, Lippmann, Thomas C., Madore, Brian, Parrish, Christopher, Pe\u27eri, Shachak, Rzhanov, Yuri   +6 more
core   +1 more source

Comparison of Satellite-Derived Bathymetry Algorithm Accuracy Using Sentinel-2 Multispectral Satellite Image

Jurnal Kelautan Tropis, 2023
The utilization of satellite image data and image data processing techniques has become an efficient alternative to obtain bathymetric data in a broad and complicated area. This study aimed to determine the algorithm's performance in the waters of Lambasina Island.
Muhammad Iqra Prasetya, Vincentius Paulus Siregar, Syamsul Bahri Agus   +2 more
openaire   +2 more sources

Enabling Under Ice Glider Operations: A Backseat Driver Approach

Journal of Field Robotics, EarlyView.
ABSTRACT Polar Oceans are key locations for forcing global ocean circulation, influencing both global climate and biogeochemical cycles. Due to restricted access to these seasonally and perennially ice‐covered regions, these areas are severely undersampled.
Yaomei Wang, Benjamin Allsup, Georgios Salavasidis, Stephen Woodward, Adeniyi Adenaya, Mike Smart, Alexis Johnson, Felipe Marques Dos Santos, Jake Ludgate, Daniel Matterson, Alvaro Lorenzo, J. Alexander Brearley, Alexander Brian Phillips   +12 more
wiley   +1 more source

Satellite-Derived Bathymetry a Reconnaissance Tool for Hydrography [PDF]

, 2013
In some developing countries, the information available to plan and prioritise hydrographic surveys is typically based on visual inspection of existing nautical charts.
Azuike, Chukwuma, Parrish, Christopher, Pe\u27eri, Shachak   +2 more
core   +2 more sources

Mapping River Bed Topography in Whitewater Rapids Using Bathymetric LiDAR

River Research and Applications, EarlyView.
ABSTRACT Bathymetric LiDAR captures river topography efficiently for clear and shallow water, but for mountain rivers, whitewater rapids still pose challenges. This study proposes a novel method to enable the extraction of bottom returns specifically in turbulent whitewater sections.
Jan Rhomberg‐Kauert, Theresa Himmelsbach, Florian Pöppl, Lucas Dammert, Martin Pfennigbauer, Gottfried Mandlburger   +5 more
wiley   +1 more source

Leveraging Commercial High-Resolution Multispectral Satellite and Multibeam Sonar Data to Estimate Bathymetry: The Case Study of the Caribbean Sea

Remote Sensing, 2019
The global coastal seascape offers a multitude of ecosystem functions and services to the natural and human-induced ecosystems. However, the current anthropogenic global warming above pre-industrial levels is inducing the degradation of seascape health ...
Samuel Pike, Dimosthenis Traganos, Dimitris Poursanidis, Jamie Williams, Katie Medcalf, Peter Reinartz, Nektarios Chrysoulakis   +6 more
doaj   +1 more source

Reconnaissance surveying of Bechevin Bay, AK using satellite-derived bathymetry [PDF]

, 2015
Recently, a remote sensing study has been conducted over Bechevin Bay Channel, Alaska as part of a collaboration project between NOAA and the U.S. Coast Guard (USCG).
Gonsalves, Michael, Keown, Patrick, Nyberg, John, Pe\u27eri, Shachak, Snyder, Leland P.   +4 more
core   +1 more source