Results 61 to 70 of about 975,462 (135)

Bio-optical retrieval algorithm for the optically shallow waters of the Great Lakes

, 2015
With the exception of a few areas, Lake Michigan is an oligotrophic clear water body. It is predominantly in the nearshore where ecology-relevant processes unfold due to natural and anthropogenic forcing. However, the bottom influence is strong enough to
Sawtell, Reid W., Korosov, A. D., Sayers, Michael J., Pozdnyakov, Dmitry V., Shuchman, Robert A.   +4 more
core  

Assessment of atmospheric correction methods in MSI imagery for deriving bathymetry and substrates of shallow-water coral reefs

Frontiers in Marine Science
Accurate atmospheric correction (AC) is a crucial procedure for monitoring coral reef habitat in shallow waters via remote sensing techniques. In this study, three commonly used AC processors—Dark Spectrum Fitting (DSF), Case 2 Regional Coast Color ...
Wei Huang, Wei Huang, Wei Huang, Wei Huang, Jun Zhao, Mingjie Li, Mingjie Li, Mingjie Li, Quansheng Lou, Quansheng Lou, Nanyang Yan, Nanyang Yan, Nanyang Yan, Shaojie Sun   +13 more
doaj   +1 more source

A semianalytical ocean color inversion algorithm with explicit water column depth and substrate reflectance parameterization [PDF]

, 2015
A semianalytical ocean color inversion algorithm was developed for improving retrievals of inherent optical properties (IOPs) in optically shallow waters.
Lachlan McKinna (7049321), Peter Fearns (112327), J. Werdell (23367811), M. Reichstetter (23353546), B. Franz (23311069), G. Feldman (23371888), D. Shea (23402050), S. Weeks (18220237)   +7 more
core   +2 more sources

Empirical Optimization of the Stumpf Method Parameter for Satellite-Derived Bathymetry

Remote Sensing
Satellite-Derived Bathymetry (SDB) based on the Stumpf log-ratio method routinely uses a fixed parameter n = 1000, a convention that has rarely been evaluated systematically.
Ausiàs Roch-Talens, Josep E. Pardo-Pascual, Jaime Almonacid-Caballer, Ángel Balaguer-Beser, Carlos Cabezas-Rabadán   +4 more
doaj   +1 more source

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

Geocarto International, 2017
AbstractWater 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 Imaging Self Scanning Sensor (LISS-3) images.
Lydia Sam, Ganesh Prusty, Nidhi Gahlot
openaire   +1 more source

In situ validation of MERIS marine reflectance off the southwest Iberian Peninsula: assessment of vicarious adjustment and corrections for near-land adjacency [PDF]

, 2014
Water-leaving reflectance (ρw) data from the European Space Agency ocean colour sensor Medium Resolution Imaging Spectrometer (MERIS) was validated with in situ ρw between October 2008 and November 2011, off Sagres on the southwest coast of the Iberian ...
Newton, Alice, Goela, Priscila Raquel Fernandes Costa, Goela, Priscila Raquel Fernandes Cost, Icely, John David, Cristina, Sónia Cláudia Vitorino, Moore, Gerald Francis   +5 more
core   +1 more source

First-Derivative Analysis for Estimating Water Quality and Optical Metrics in Shallow Coastal Waters

Remote Sensing
The study quantifies correlations between remote sensing reflectance (Rrs), first derivatives (FDs), and water quality and optical metrics: chlorophyll-a (Chl-a), phaeopigments (Pha), total suspended matter (TSM), coloured dissolved organic matter (CDOM), and the scalar ambient attenuation coefficient for photosynthetically active radiation, K0(PAR ...
Aminah Kaharuddin, Stefan Forster, Hendrik Schubert   +2 more
openaire   +1 more source

A global approach for chlorophyll-a retrieval across optically complex inland waters based on optical water types [PDF]

, 2019
Numerous algorithms have been developed to retrieve chlorophyll-a (Chla) concentrations (mg m−3) from Earth observation (EO) data collected over optically complex waters. Retrieval accuracy is highly variable and often unsatisfactory where Chla co-occurs
Spyrakos, Evangelos, Hunter, Peter D, Neil, Claire, Tyler, Andrew N   +3 more
core   +1 more source

Estimating Chlorophyll-a Concentrations in Optically Shallow Waters Using Gaofen-1 Wide-Field-of-View (GF-1 WFV) Datasets from Lake Taihu, China

Remote Sensing
Lake Taihu has highly turbid inland waters with complex optical properties. Due to the bottom effect of submerged aquatic plants in optically shallow waters, currently available phytoplankton chlorophyll-a retrieval algorithms tend to overestimate ...
Fuli Yan, Yuzhuo Li, Xiangtao Fan, Hongdeng Jian, Yun Li   +4 more
doaj   +1 more source

Bio-Optical Properties of Two Neigboring Coastal Regions of Tropical Northern Australia: The Van Diemen Gulf and Darwin Harbour

Frontiers in Marine Science, 2017
This study focuses on the seasonal and spatial characterization of inherent optical properties and biogeochemical concentrations in the Van Diemen Gulf and Darwin Harbour, two neighboring tropical coastal environments of Northern Australia that exhibit ...
David Blondeau-Patissier, David Blondeau-Patissier, David Blondeau-Patissier, Thomas Schroeder, Lesley A. Clementson, Vittorio E. Brando, Diane Purcell, Diane Purcell, Phillip Ford, David K. Williams, David Doxaran, Janet Anstee, Nandika Thapar, Miguel Tovar-Valencia   +13 more
doaj   +1 more source