Results 31 to 40 of about 40,256 (254)

Distinct patterns of hybridization across a suture zone in a coral reef fish (Dascyllus trimaculatus)

open access: yesEcology and Evolution, 2020
Hybrid zones are natural laboratories for investigating the dynamics of gene flow, reproductive isolation, and speciation. A predominant marine hybrid (or suture) zone encompasses Christmas Island (CHR) and Cocos (Keeling) Islands (CKE), where 15 ...
Eva Salas   +6 more
doaj   +1 more source

Assessing the Skills of a Seasonal Forecast of Chlorophyll in the Global Pelagic Oceans

open access: yesRemote Sensing, 2021
While forecasts of atmospheric variables, and to a lesser degree ocean circulation, are relatively common, the forecast of biogeochemical conditions is still in its infancy.
Cecile S. Rousseaux   +2 more
doaj   +1 more source

The Use of VGPM to Estimate Oceanic Primary Production: A “Tango” Difficult to Dance

open access: yesJournal of Remote Sensing, 2022
One of the primary goals of launching an ocean color satellite is to obtain over the global ocean synoptic measurements of primary production (PP), a measure of phytoplankton photosynthesis.
Zhongping Lee, John F. Marra
doaj   +1 more source

The Impact of Glacial Suspension Color on the Relationship Between Its Properties and Marine Water Spectral Reflectance

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
This study enabled us to determine the sources of sediment for glacial catchments and investigate the differences in properties, i.e., suspended sediment concentration (SSC), turbidity measured in the laboratory (TLAB) and in the field (TF), mean ...
Kornelia Anna Wojcik-Dlugoborska   +2 more
doaj   +1 more source

Multiband Atmospheric Correction Algorithm for Ocean Color Retrievals

open access: yesFrontiers in Earth Science, 2019
National Aeronautics and Space Administration's (NASA's) current atmospheric correction (AC) algorithm for ocean color utilizes two bands and their ratio in the near infrared (NIR) to estimate aerosol reflectance and aerosol type.
Amir Ibrahim   +5 more
doaj   +1 more source

Ocean Color Image Sequences Reveal Diurnal Changes in Water Column Stability Driven by Air–Sea Interactions

open access: yesJournal of Marine Science and Engineering, 2023
The southward propagation of cold-air frontal boundaries into the Gulf of Mexico region initiates a cascade of coupled air–sea processes that manifests along the coastlines as an apparent brightness anomaly in the ocean color signals.
Jason K. Jolliff   +7 more
doaj   +1 more source

Estimation of phytoplankton pigments from ocean-color satellite observations in the Senegalo–Mauritanian region by using an advanced neural classifier [PDF]

open access: yesOcean Science, 2020
We processed daily ocean-color satellite observations to construct a monthly climatology of phytoplankton pigment concentrations in the Senegalo–Mauritanian region.
K. Yala   +9 more
doaj   +1 more source

A Decade of Satellite Ocean Color Observations [PDF]

open access: yesAnnual Review of Marine Science, 2009
After the successful Coastal Zone Color Scanner (CZCS, 1978–1986) demonstration that quantitative estimations of geophysical variables such as chlorophyll a and diffuse attenuation coefficient could be derived from top of the atmosphere radiances, a number of international missions with ocean color capabilities were launched beginning in the late ...
openaire   +2 more sources

Evaluation of the CALIPSO Lidar-observed particulate backscattering coefficient on different spatiotemporal matchup scales

open access: yesFrontiers in Marine Science, 2023
The satellite lidar-derived ocean particulate backscattering coefficient (bbp) has rarely been validated globally with in situ observations, and we need to understand how well the satellite CALIPSO lidar bbp approach performs.
Miao Sun   +12 more
doaj   +1 more source

Inversion of multiangular polarimetric measurements from the ACEPOL campaign: an application of improving aerosol property and hyperspectral ocean color retrievals [PDF]

open access: yesAtmospheric Measurement Techniques, 2020
NASA's Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) mission, scheduled for launch in the time frame of late 2022 to early 2023, will carry the Ocean Color Instrument (OCI), a hyperspectral scanning radiometer, and two multiangle polarimeters (MAPs ...
M. Gao   +10 more
doaj   +1 more source

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