Results 121 to 130 of about 14,128 (260)

Seasonal dynamics in dissolved organic matter, hydrogen peroxide, and cyanobacterial blooms in Lake Erie

Frontiers in Marine Science, 2016
Hydrogen peroxide (H2O2) has been suggested to influence cyanobacterial community structure and toxicity. However, no study has investigated H2O2 concentrations in freshwaters relative to cyanobacterial blooms when sources and sinks of H2O2 may be ...
Rose M. Cory, Timothy W. Davis, Gregory J. Dick, Gregory J. Dick, Tom eJohengen, Vincent J. Denef, Michelle eBerry, Sarah E. Page, Sarah E. Page, Susan B. Watson, Kate eYuhas, George W. Kling   +11 more
doaj   +1 more source

Seasonal modulation of mesoscale processes alters nutrient availability and plankton communities in the Red Sea [PDF]

, 2019
Hydrographic and atmospheric forcing set fundamental constraints on the biogeochemistry of aquatic ecosystems and manifest in the patterns of nutrient availability and recycling, species composition of communities, trophic dynamics, and ecosystem ...
Al-Aidaroos, Ali M., Capone, Douglas G., Devassy, Reny P., El-Sherbiny, Mohsen M., Irigoien, Xabier, Jones, Burton H., Kürten, Benjamin, Schulz, Isabelle K., Struck, Ulrich, Zarokanellos, Nikolaos D.   +9 more
core   +1 more source

Decrease in water clarity of the southern and central North Sea during the 20th century [PDF]

, 2015
Light in the marine environment is a key environmental variable coupling physics to marine biogeochemistry and ecology. Weak light penetration reduces light available for photosynthesis, changing energy fluxes through the marine food web.
Airoldi L, Cressie NAC, Dye SR, Hall SJ, Kovats RS, Leeuwen SM, Manly BFJ, Newell RIE, Olsen OT, R Development Core Team, Roman CT, Sathyendranath S   +11 more
core   +1 more source

CDOM Absorption Properties of Natural Water Bodies Along Extreme Environmental Gradients

Water, 2019
We present absorption properties of colored dissolved organic matter (CDOM) sampled in six different water bodies along extreme altitudinal, latitudinal, and trophic state gradients.
J. Stamnes, Ciren Nima, B. Hamre, Øyvind Frette, Yi-Chun Chen, K. Sørensen, M. Norli, Da-Ren Lu, Qiangguo Xing, Dennis Muyiimbwa, Taddeo Ssenyyonga, K. Stamnes, S. R. Erga   +12 more
semanticscholar   +1 more source

Terrestrial CDOM in lakes of Yamal Peninsula

, 2018
In this study, we analyze interactions in lake and lake catchment systems of a continuous permafrost area. We assessed colored dissolved organic matter (CDOM) absorption at 440 nm (a(440)(CDOM)) and absorption slope (S300-500) in lakes using field sampling and optical remote sensing data for an area of 350 km(2) in Central Yamal, Siberia.
Dvornikov, Yury, Leibman, Marina, Heim, Birgit (Dr.), Bartsch, Annett, Herzschuh, Ulrike (Prof. Dr.), Skorospekhova, Tatiana, Fedorova, Irina, Khomutov, Artem, Widhalm, Barbara, Gubarkov, Anatoly, Rößler, Sebastian   +10 more
openaire   +2 more sources

Groundwater as a source of dissolved organic matter to coastal waters: Insights from radon and CDOM observations in 12 shallow coastal systems

Limnology and Oceanography, 2018
The influence of groundwater and pore‐water exchange on dissolved organic matter (DOM) dynamics in coastal surface waters remains poorly understood. Here, we combine bottom up (i.e., groundwater‐derived flux estimates) and top down (i.e., water column ...
J. Webb, I. Santos, D. Maher, D. Tait, Tyler J. Cyronak, Mahmood Sadat‐Noori, Paul A. Macklin, L. Jeffrey   +7 more
semanticscholar   +1 more source

High colored dissolved organic matter (CDOM) absorption in surface waters of the central-eastern Arctic Ocean: Implications for biogeochemistry and ocean color algorithms

PLoS ONE, 2018
As consequences of global warming sea-ice shrinking, permafrost thawing and changes in fresh water and terrestrial material export have already been reported in the Arctic environment. These processes impact light penetration and primary production.
R. Gonçalves‐Araujo, B. Rabe, I. Peeken, A. Bracher   +3 more
semanticscholar   +1 more source

Spatial and temporal distribution of coloured dissolved organic matter in a hypertrophic freshwater lagoon

Journal of Limnology, 2015
A dataset of 224 Medium Resolution Imaging Spectrometer (MERIS) full resolution satellite images were processed to retrieve the concentration of coloured dissolved organic matter (CDOM) in a hypertrophic estuary (Curonian Lagoon, Lithuania and Russia ...
Diana Vaičiūtė, Mariano Bresciani, Marco Bartoli, Claudia Giardino, Martynas Bučas   +4 more
doaj   +1 more source

Using CDOM optical properties for estimating DOC concentrations and pCO2 in the Lower Amazon River.

Optics Express, 2018
Coloured dissolved organic matter (CDOM) is one of the major contributors to the absorption budget of most freshwaters and can be used as a proxy to assess non-optical carbon fractions such as dissolved organic carbon (DOC) and the partial pressure of ...
A. Valerio, M. Kampel, V. Vantrepotte, N. Ward, H. Sawakuchi, Diani F. S. Less, V. Neu, A. Cunha, J. Richey   +8 more
semanticscholar   +1 more source

Four-Decade CDOM Dynamics in Amur River Basin Lakes from Landsat and Machine Learning

Remote Sensing
Lakes in the Amur River Basin (ARB) are increasingly influenced by climate variability and human activities, yet long-term basin-scale patterns of colored dissolved organic matter (CDOM) remain unclear.
Ye Wang, Pengfei Han, Chi Zhang, Zhuohang Xin, Lu Zhang, Xixin Lu, Jinkun Huang   +6 more
doaj   +1 more source