Results 51 to 60 of about 1,449 (181)

An explanation of the spectral variation in freshwater CDOM fluorescence [PDF]

Limnology and Oceanography, 1992
The variation of freshwater chromophoric (or colored) dissolved organic matter (CDOM) fluorescence with respect to sample pH was examined. Trends from previous studies are supported by results obtained from fluorescence spectra collected during sample titration.
openaire   +1 more source

Satellite‐Observed Hourly Chlorophyll Variability Associated With Solar Radiation in China's Marginal Seas

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Understanding sub‐daily variability in phytoplankton proxies is essential for interpreting satellite estimates of ocean productivity in marginal seas. Using high‐frequency observations from the Geostationary Ocean Color Imager (GOCI), we assess daytime (08:00–15:00 local time) hourly surface chlorophyll‐a (Chla) variability across China's ...
Jian Wang, Deyong Sun, Shengqiang Wang, Xin Zhang, Zishen Li, Yu Huan, Lijing Gao   +6 more
wiley   +1 more source

High photoreactivity of chromophoric dissolved organic matter derived from Ulva prolifera and Sargassum

Frontiers in Marine Science
The epipelagic macroalgae of Ulva prolifera and Sargassum are the primary contributors to widespread seaweed tides globally. Both ocean plants release large amounts of chromophoric dissolved organic matter (CDOM) into the surrounding seawater.
Yong Zhang, Yong Zhang, Kaili Fang, Mengmeng Liu, Jihua Liu, Jihua Liu, Xiaobo Zhao, Weidong Zhai, Hongsheng Zhang, Xiaotong Wang, Huixiang Xie   +10 more
doaj   +1 more source

Key considerations for the use of satellite‐based remote sensing for lake and reservoir research and management

Ecosphere, Volume 17, Issue 7, July 2026.
Abstract Given the critical importance of freshwater for human well‐being and the myriad threats altering water quality and quantity, monitoring lakes and reservoirs is necessary to identify where, how, and why freshwater ecosystems are changing globally.
J. V. Trout‐Haney, J. A. Brentrup, K. L. Cottingham, K. C. Weathers, B. D. Cook, M. J. Ducey, C. Herrick, K. M. Johnson, M. W. Palace, B. G. Steele, M. C. Thompson, D. A. Lutz   +11 more
wiley   +1 more source

Remote sensing estimation of the concentration and sources of coloured dissolved organic matter based on MODIS: A case study of Erhai lake

Ecological Indicators, 2021
The use of satellite remote sensing to estimate coloured dissolved organic matter (CDOM) and identify its potential sources is important for monitoring lake water quality and implementing management strategies.
Hao Zhang, Bo Yao, Shengrui Wang, Guoqiang Wang   +3 more
doaj   +1 more source

Uncertainty assessment for a novel optically shallow water radiometric acquisition platform

Limnology and Oceanography: Methods, Volume 24, Issue 7, July 2026.
Abstract We present a novel motorized platform, a custom‐built jet‐ski designed for acoustic and radiometric measurements in optically shallow coastal waters. This platform integrates in‐water radiometers with single‐beam and multi‐beam acoustic sensors, along with a suite of active and passive instruments (conductivity‐temperature‐depth, fluorescence,
Raphaël Mabit, Simon Bélanger, Pascal Bernatchez   +2 more
wiley   +1 more source

Stable Sediment Plumes Despite Tidewater Glacier Retreat in a South Greenland Fjord

Journal of Geophysical Research: Oceans, Volume 131, Issue 7, July 2026.
Abstract Tidewater glaciers play a critical role in ice sheet mass loss and fjord hydrography, as meltwater runoff volume and injection depth can influence sediment transport, fjord circulation, and fjord stratification. As tidewater glaciers retreat and transition from marine‐ to land‐terminating, the impacts of shifting meltwater delivery depth on ...
Sydney J. N. Baratta, Kristin M. Schild, Lee Karp‐Boss, Emmanuel Boss, Binbin Jiang, Juliana Tavora   +5 more
wiley   +1 more source

The most oligotrophic subtropical zones of the global ocean: similarities and differences in terms of chlorophyll and yellow substance [PDF]

Biogeosciences, 2010
The cores of the subtropical anticyclonic gyres are characterized by their oligotrophic status and minimal chlorophyll concentration, compared to that of the whole ocean. These zones are unambiguously detected by space borne ocean color sensors thanks to
A. Morel, H. Claustre, B. Gentili
doaj   +1 more source

Quantifying Shifts in the Absorption Budget of the Labrador Sea as the Dominant Phytoplankton Group Changes Between Diatoms and Phaeocystis

Journal of Geophysical Research: Oceans, Volume 131, Issue 7, July 2026.
Abstract Phytoplankton spring blooms in the Labrador Sea are dominated by diatoms, with Phaeocystis spp. (hereafter Phaeocystis) contributing more than 25% to total phytoplankton biomass. However, in 2015 and 2022, large blooms of Phaeocystis were observed, contributing up to 90% of the surface phytoplankton biomass. In this study, we quantified shifts
K. L. Wilson, E. Devred, T. Perry, S. Clay   +3 more
wiley   +1 more source

Chronic disease outcome metadata from German observational studies – public availability and FAIR principles

Scientific Data, 2023
Metadata from epidemiological studies, including chronic disease outcome metadata (CDOM), are important to be findable to allow interpretability and reusability.
Carolina Schwedhelm, Katharina Nimptsch, Wolfgang Ahrens, Hans Martin Hasselhorn, Karl-Heinz Jöckel, Verena Katzke, Alexander Kluttig, Birgit Linkohr, Rafael Mikolajczyk, Ute Nöthlings, Ines Perrar, Annette Peters, Carsten O. Schmidt, Börge Schmidt, Matthias B. Schulze, Andreas Stang, Hajo Zeeb, Tobias Pischon   +17 more
doaj   +1 more source