Results 11 to 20 of about 34,958 (163)

ESTIMATION OF OCEANIC PARTICULATE ORGANIC CARBON WITH MACHINE LEARNING [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Abstract. Understanding and quantifying ocean carbon sinks of the planet is of paramount relevance in the current scenario of global change. Particulate organic carbon (POC) is a key biogeochemical parameter that helps us characterize export processes of the ocean.
Sauzède, R., Johnson, J. E., Claustre, H., Camps-Valls, G., Ruescas, A. B.   +4 more
openaire   +3 more sources

Nunataryuk field campaigns: understanding the origin and fate of terrestrial organic matter in the coastal waters of the Mackenzie Delta region [PDF]

Earth System Science Data, 2023
Climate warming and related drivers of soil thermal change in the Arctic are expected to modify the distribution and dynamics of carbon contained in perennially frozen grounds. Thawing of permafrost in the Mackenzie River watershed of northwestern Canada,
M. Lizotte, B. Juhls, B. Juhls, B. Juhls, A. Matsuoka, A. Matsuoka, P. Massicotte, G. Mével, D. O. J. Anikina, S. Antonova, G. Bécu, M. Béguin, S. Bélanger, T. Bossé-Demers, T. Bossé-Demers, L. Bröder, F. Bruyant, G. Chaillou, J. Comte, R.-M. Couture, R.-M. Couture, E. Devred, G. Deslongchamps, T. Dezutter, M. Dillon, D. Doxaran, A. Flamand, F. Fell, J. Ferland, J. Ferland, M.-H. Forget, M. Fritz, T. J. Gordon, C. Guilmette, A. Hilborn, R. Hussherr, R. Hussherr, C. Irish, F. Joux, L. Kipp, A. Laberge-Carignan, A. Laberge-Carignan, H. Lantuit, E. Leymarie, A. Mannino, J. Maury, P. Overduin, L. Oziel, L. Oziel, C. Stedmon, C. Thomas, L. Tisserand, J.-É. Tremblay, J. Vonk, D. Whalen, M. Babin   +55 more
doaj   +1 more source

Thirty Years of Nutrient Biogeochemistry in the Barents Sea and the adjoining Arctic Ocean, 1990–2019

Scientific Data, 2022
Measurement(s) dissolved inorganic nutrients (nitrate, nitrite, phosphate, silicate) • cellular pigments (chlorophyll-a, phaeopigments) • dioxygen dissolved in marine water • particulate organic carbon and nitrogen Technology Type(s) nutrients ...
Kjell Gundersen, Jane S. Møgster, Vidar S. Lien, Elizaveta Ershova, Linda F. Lunde, Hilde Arnesen, Ann-Kristin Olsen   +6 more
doaj   +1 more source

Divergent changes in particulate and mineral-associated organic carbon upon permafrost thaw

Nature Communications, 2022
Based on observations from thermokarst-impacted sites on the Tibetan Plateau, the authors find substantial particulate organic carbon loss but stable mineral-associated organic carbon and enriched iron-bound organic carbon upon permafrost thaw.
Futing Liu, Shuqi Qin, Kai Fang, Leiyi Chen, Yunfeng Peng, Pete Smith, Yuanhe Yang   +6 more
doaj   +1 more source

Mangrove peat and algae leachates elicit rapid and contrasting molecular and microbial responses in coastal waters

Communications Earth & Environment, 2023
As sea level rises, previously sequestered blue carbon can be exported offshore as particulate or dissolved organic matter where it may be re-mineralized or sequestered.
Elise S. Morrison, Yina Liu, Albert Rivas-Ubach, João Henrique Fernandes Amaral, Michael Shields, Todd Z. Osborne, Rosalie Chu, Nicholas Ward, Thomas S. Bianchi   +8 more
doaj   +1 more source

Monsoonal influence on particulate organic carbon variability through satellite data analysis [PDF]

Global Journal of Environmental Science and Management
BACKGROUND AND OBJECTIVES: The concentration of particulate organic carbon serves as a key indicator of biological productivity within the euphotic zone.
C.K. Tito, D.G. Bengen, T. Prartono, A. Damar, A.J. Wahyudi   +4 more
doaj   +1 more source

Agro-residue biochar and N fertilizer addition mitigates CO2-C emission and stabilized soil organic carbon pools in a rain-fed agricultural cropland

International Soil and Water Conservation Research, 2021
Scarce carbon dioxide (CO2) emission data, soil organic carbon (Corg) and labile Corg pool index for croplands in sub-Saharan Africa (SSA) limits our ability to define regional CO2 flux and mitigation prospects provided by biochar amendment.
Segun O. Oladele, Adewole T. Adetunji
doaj   +1 more source

Particulate organic carbon: Sampling variability [PDF]

Limnology and Oceanography, 1974
Replicate sampling for particulate organic carbon (POC) in the open ocean indicates that at any given position and depth the POC distribution consists of a homogeneous background concentration on which are superimposed occasional small patches containing two to five times as much organic carbon as is present in the background. The 95% confidence limits
openaire   +1 more source

Aged riverine particulate organic carbon in four UK catchments [PDF]

Science of The Total Environment, 2015
The riverine transport of particulate organic matter (POM) is a significant flux in the carbon cycle, and affects macronutrients and contaminants. We used radiocarbon to characterise POM at 9 riverine sites of four UK catchments (Avon, Conwy, Dee, Ribble) over a one-year period.
Adams, Jessica L., Tipping, Edward, Bryant, Charlotte L., Helliwell, Rachel C., Toberman, Hannah, Quinton, John   +5 more
openaire   +3 more sources

Microbial-mediated contribution of kelp detritus to different forms of oceanic carbon sequestration

Ecological Indicators, 2022
Kelp is one of the most important primary producers in the coastal oceans. When it matures or begins to decay, a substantial amount of detritus sinks and is degraded by microorganisms.
Xiuting Feng, Hongmei Li, Zenghu Zhang, Tianqi Xiong, Xiaoyong Shi, Chen He, Quan Shi, Nianzhi Jiao, Yongyu Zhang   +8 more
doaj   +1 more source