Article
Environmental Sciences
Elizabeth H. Shadwick, Cathryn A. Wynn-Edwards, Richard J. Matear, Peter Jansen, Eric Schulz, Adrienne J. Sutton
Summary: The Subantarctic Zone in the Southern Ocean plays a crucial role in air-sea CO2 exchange and the storage of anthropogenic CO2. This study uses long-term observations to reveal that this region is a net sink for atmospheric CO2 and that the ocean pCO(2) may be increasing slightly faster than the atmosphere, indicating the contribution of both oceanic and anthropogenic forcings.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
Kazutoshi Sato, Jun Inoue
Summary: The study found that the distribution of low-tropospheric ice clouds in Antarctica and the Southern Ocean is influenced by temperature, with marine aerosols acting as ice-nucleating particles in both summer and winter.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Oceanography
Trishneeta Bhattacharya, Kunal Chakraborty, Prasanna Kanti Ghoshal, Jayashree Ghosh, Balaji Baduru
Summary: This study examines the impact of two severe tropical cyclonic events on surface ocean pCO(2) and upper ocean structure. The results show that these cyclones have significant effects on primary productivity and pCO(2) variability. The response to the cyclones is relatively short-lived and subdued in the Bay of Bengal, while the Arabian Sea acts as a greater source of CO2 to the atmosphere during the cyclones.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2023)
Article
Marine & Freshwater Biology
Kunal Chakraborty, A. P. Joshi, Prasanna Kanti Ghoshal, Jayashree Ghosh, Anirban Akhand, Trishneeta Bhattacharya, M. G. Sreeush, Vinu Valsala
Summary: This study examines the mechanisms and drivers involved in the spatial and temporal evolutions of surface pCO2 in an upwelling system in the eastern boundary of the Indian Ocean. The study finds that physical mechanisms have a dominant effect in reducing surface pCO2 compared to biological mechanisms under these conditions.
ESTUARINE COASTAL AND SHELF SCIENCE
(2023)
Article
Environmental Sciences
Vivek Seelanki, Vimlesh Pant
Summary: The study examined the impact of lockdown on chlorophyll-a concentration in the northern Indian Ocean, revealing a decrease in Chl-a concentration in coastal regions due to reduced anthropogenic activities while an increase in phytoplankton biomass was observed in the western Arabian Sea during the pandemic period.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Environmental Sciences
Jianwei Wei, Menghua Wang, Karlis Mikelsons, Lide Jiang
Summary: This study explores the variability of chlorophyll-specific absorption coefficient of phytoplankton at 443 nm (aph*(443)) in surface oceans in different seasons and regions. The results show a decreasing gradient of aph*(443) from open oceans to coastal environments, with significant spatial variance. Seasonal variations are prominent and deviate from climatological means. A sinusoidal model characterizes the annual and semiannual features, with latitudinal dependence in amplitudes and phases. Satellite observations confirm a global mean relationship between aph*(443) and Chl-a comparable to in situ measurements, but the seasonal/regional relationships can deviate significantly. The proposed model predicts aph*(443) as a function of geolocation and time, which is validated as a promising alternative to traditional approaches.
Article
Oceanography
Matthis Auger, Jean-Baptiste Sallee, Pierre Prandi, Alberto C. Naveira Garabato
Summary: A novel multi-satellite product is used to study the seasonal cycle of sea surface height and geostrophic circulation in the subpolar Southern Ocean. Three main modes of variability are identified, all primarily driven by wind forcing. The first mode is associated with the seasonal variation of the subpolar gyres, consistent with Sverdrup dynamics. The second mode is related to the Antarctic Slope Current, showing a rapid circumpolar propagation along the continental slope consistent with the Southern Mode. The third mode appears to be driven by sea ice-modulated surface stress and leads to an offshore extension of the Antarctic Slope Current.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Review
Oceanography
Fanglou Liao, Guandong Gao, Peng Zhan, Yan Wang
Summary: This study investigates the seasonal variations and trend of the global upper-ocean vertical velocity using a state-of-the-art ocean state estimate. Significant seasonal variations are found, but no statistically significant basin-scale patterns of intensification or weakening of vertical circulations are observed in the top 200 m of the global ocean during 1998-2017.
PROGRESS IN OCEANOGRAPHY
(2022)
Article
Multidisciplinary Sciences
Jeongmin Yun, Sujong Jeong, Nicolas Gruber, Luke Gregor, Chang-Hoi Ho, Shilong Piao, Philippe Ciais, David Schimel, Eun Young Kwon
Summary: The seasonal amplitude of atmospheric CO2 is increasing globally, with strong positive trends observed in the southern high latitudes after 2000. This increase is largely attributed to the increasing seasonality of air-sea CO2 exchange over the Southern Ocean around 2000.
Article
Engineering, Electrical & Electronic
Yanjun Wang, Xiaofeng Li, Jinming Song, Xuegang Li, Guorong Zhong, Bin Zhang
Summary: This study utilized correlation analysis and a neural network to estimate carbon flux in the Southern Ocean, revealing an increasing carbon sink capacity since 2000. The seasonality is characterized by minimal uptake in winter and maximum uptake in summer, with a confirmed double-ring structure of carbon sources and sinks in the region.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2021)
Article
Environmental Sciences
Ji-Hoon Oh, Kyung Min Noh, Hyung-Gyu Lim, Emilia Kyung Jin, Sang-Yoon Jun, Jong-Seong Kug
Summary: This study examines the impacts of Antarctic meltwater on surface phytoplankton biomass in the Southern Ocean. It finds that the enhanced stratification due to the meltwater leads to changes in surface nutrient concentrations, particularly a decrease in nitrate concentration and an increase in dissolved iron concentration. These changes can shift the nutrient availability in the ocean and impact the biomass of phytoplankton.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Christina Schallenberg, Robert F. Strzepek, Sophie Bestley, Bozena Wojtasiewicz, Thomas W. Trull
Summary: The ratio between fluorescence and chlorophyll-a varies in the world's oceans, with the highest ratios and variability observed in the Southern Ocean. In addition to species composition and chlorophyll packaging, iron limitation also plays a significant role in influencing this ratio. This study utilized radiometry data from BGC-Argo floats in the Southern Ocean to estimate chlorophyll concentration based on the light attenuation coefficient, revealing a positive correlation between fluorescence/chlorophyll ratio and a proxy for iron limitation.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Oceanography
Matthis Auger, Jean-Baptiste Sallee, Andrew F. Thompson, Etienne Pauthenet, Pierre Prandi
Summary: In this study, we analyzed the statistical properties of surface currents and coherent mesoscale eddies in the seasonally ice-covered Southern Ocean. Through the calculation of Eddy Kinetic Energy (EKE) and eddy detection, we found that EKE is higher in the northern sector and over the continental slope compared to the middle of the subpolar gyres. The distribution of eddies follows the pattern of EKE, and sea ice concentration also plays a role in determining their properties.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2023)
Article
Geosciences, Multidisciplinary
K. M. Bisson, B. B. Cael
Summary: This study investigated the relationship between Southern Ocean sea ice and under-ice phytoplankton characteristics using a distributional approach. The results showed significant correlations between Argo float data and freeboard variance, lead fraction, and mixed layer depth, indicating that sea ice dynamics play a key role in modulating the amount of light available to phytoplankton. The study highlights the importance of diagnostic models and field studies to further understand the processes influencing under-ice phytoplankton in the Southern Ocean.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Natalia A. Orekhova, Sergey K. Konovalov, Alexander A. Polukhin, Anna M. Seliverstova
Summary: The concentration of carbon dioxide in the atmosphere has been increasing since pre-industrial times, with a significant portion being absorbed by the World Ocean, particularly the Southern Ocean. Changes in climate can affect the concentrations of oxygen and carbon dioxide dissolved in seawater, which in turn impacts the biogeochemical cycles in the ocean.
Article
Geochemistry & Geophysics
Jacqueline Boutin, Jean-Luc Vergely, Emmanuel P. Dinnat, Philippe Waldteufel, Francesco D'Amico, Nicolas Reul, Alexandre Supply, Clovis Thouvenin-Masson
Summary: By studying the dielectric constant parametrization and making slight modifications to the ST model, systematic differences in SMOS data can be reduced.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2021)
Article
Environmental Sciences
Ferran Gibert, Jacqueline Boutin, Wolfgang Dierking, Alba Granados, Yan Li, Eduard Makhoul, Junmin Meng, Alexandre Supply, Ester Vendrell, Jean-Luc Vergely, Jin Wang, Jungang Yang, Kunsheng Xiang, Xiaobin Yin, Xi Zhang
Summary: This paper outlines the Dragon 4 project's focus on sea ice monitoring, altimetry data product development, and sea surface salinity retrieval. New methods and detection schemes were developed to improve sea ice thickness retrieval, evaluate sea ice drift, and assess oceanic features using different altimeters.
Article
Oceanography
Hiroshi Murakami, David Antoine, Vincenzo Vellucci, Robert Frouin
Summary: This study derived vicarious calibration coefficients (k(v)) for Second-generation GLobal Imager (SGLI) using in-situ radiometric buoy measurements, and tested two aerosol-model look up tables (LUTs) in the calculation of k(v) and retrieval of remote sensing reflectance (R-rs) and aerosol optical thickness (AOT). The results showed that LUT-A had smaller AOT bias and LUT-B had smaller R-rs noise. AOT overestimation was observed, but the NIR channel's k(v) was close to 1.0 when using AOT and land surface reflectance measurements. Currently, the results are applied for the standard ocean color processing of SGLI, but further improvement is needed to design an optimal LUT suitable for both aerosol and ocean color purposes.
JOURNAL OF OCEANOGRAPHY
(2022)
Article
Environmental Sciences
Emanuele Ciancia, Teodosio Lacava, Nicola Pergola, Vincenzo Vellucci, David Antoine, Valeria Satriano, Valerio Tramutoli
Summary: The study aims to evaluate phytoplankton phenology variability and anomalous blooms in the north-western Mediterranean Sea using robust satellite techniques. The OC-CCI derived chlorophyll-a anomaly index showed the best performance in characterizing anomalous blooms compared to in situ data. Intense convection events may lead to positive chlorophyll-a anomalies between the BOUSSOLE site and the Center of Convection Zone.
Article
Optics
Malika Kheireddine, David Antoine, Vincenzo Vellucci, Bernard Gentili
Summary: The diel cycles of the optical backscattering coefficient of particulate matter in the ocean can generate measurable diel variability of the ocean reflectance. This provides a promising avenue for quantifying biogeochemical quantities, but current inversion algorithms have limitations in deriving diel changes.
Article
Environmental Sciences
Clovis Thouvenin-Masson, Jacqueline Boutin, Jean-Luc Vergely, Gilles Reverdin, Adrien C. H. Martin, Sebastien Guimbard, Nicolas Reul, Roberto Sabia, Rafael Catany, Odile Hembise Fanton-d'Andon
Summary: Satellite sea surface salinity (SSS) products are typically validated by comparing them with in-situ measurements, but the difference in spatio-temporal resolution leads to a sampling mismatch uncertainty. This study merges SSS from three satellite missions and estimates weekly and monthly SSS and their uncertainties at a 50 km spatial resolution. A quantitative validation is performed by considering the statistical distribution of the differences between the satellite and in-situ measurements, and the results indicate that the differences in dynamical regions are mainly due to the sampling mismatch.
Article
Oceanography
Alexandre Supply, Jacqueline Boutin, Nicolas Kolodziejczyk, Gilles Reverdin, Camille Lique, Jean-Luc Vergely, Xavier Perrot
Summary: This study investigates the Chukchi and Beaufort Seas in the Arctic Ocean and demonstrates the ability of satellite sea surface salinity (SSS) to capture SSS freshening induced by sea ice melt. The study analyzes the spatial variability of sea surface properties after the sea ice edge retreat and highlights the impact of meltwater lenses on air-sea momentum transfer. The findings show the importance of using satellite measurements to understand changes in the Arctic's role in climate change.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Article
Geochemistry & Geophysics
Jacqueline Boutin, Jean-Luc Vergely, Fabrice Bonjean, Xavier Perrot, Yiwen Zhou, Emmanuel P. Dinnat, Roger H. Lang, David M. Le Vine, Roberto Sabia
Summary: The accuracy of SSS retrieved from L-Band radiometer measurements depends on the reliability of the dielectric constant model. Two new parametrizations based on SMOS satellite measurements and laboratory measurements by George Washington University were found to have better agreement with brightness temperature variations compared to previous parametrizations. However, there is still uncertainty, especially below 10 degrees C.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2023)
Article
Geosciences, Multidisciplinary
Rainer Kiko, Marc Picheral, David Antoine, Marcel Babin, Leo Berline, Tristan Biard, Emmanuel Boss, Peter Brandt, Francois Carlotti, Svenja Christiansen, Laurent Coppola, Leandro de la Cruz, Emilie Diamond-Riquier, Xavier Durrieu de Madron, Amanda Elineau, Gabriel Gorsky, Lionel Guidi, Helena Hauss, Jean-Olivier Irisson, Lee Karp-Boss, Johannes Karstensen, Dong-gyun Kim, Rachel M. Lekanoff, Fabien Lombard, Rubens M. Lopes, Claudie Marec, Andrew M. P. McDonnell, Daniela Niemeyer, Margaux Noyon, Stephanie H. O'Daly, Mark D. Ohman, Jessica L. Pretty, Andreas Rogge, Sarah Searson, Masashi Shibata, Yuji Tanaka, Toste Tanhua, Jan Taucher, Emilia Trudnowska, Jessica S. Turner, Anya Waite, Lars Stemmann
Summary: This article presents a global dataset of marine particle size distribution obtained with underwater vision profiler 5 (UVP5) camera systems. The dataset contains 8805 vertical profiles collected between June 19, 2008 and November 23, 2020, covering all major ocean basins as well as the Mediterranean Sea and the Baltic Sea. Preliminary analysis shows that particle abundance is high in high latitude and coastal areas, and low in the deep ocean and oceanic gyres.
EARTH SYSTEM SCIENCE DATA
(2022)
Article
Meteorology & Atmospheric Sciences
Michael P. Hemming, Jan Kaiser, Jacqueline Boutin, Liliane Merlivat, Karen J. Heywood, Dorothee C. E. Bakker, Gareth A. Lee, Marcos Cobas Garcia, David Antoine, Kiminori Shitashima
Summary: Although the Mediterranean Sea covers only 0.8% of the global oceanic surface, it is considered a disproportionately large sink for anthropogenic carbon. A recent study conducted a glider mission in the northwestern Mediterranean Sea and obtained valuable data regarding the carbon dynamics and the start of a phytoplankton bloom.
Article
Ecology
Liliane Merlivat, Michael Hemming, Jacqueline Boutin, David Antoine, Vincenzo Vellucci, Melek Golbol, Gareth A. Lee, Laurence Beaumont
Summary: The onset of the phytoplankton spring bloom is triggered by higher light levels and decreased wind strength, leading to a shallower mixing layer. This results in increased carbon uptake by phytoplankton and a switch from negative to positive air-sea net heat flux, which contributes to the seasonal evolution of surface pCO(2) and atmospheric CO2 reduction.
Article
Remote Sensing
Robert Frouin, Jing Tan, Mathieu Compiegne, Didier Ramon, Marshall Sutton, Hiroshi Murakami, David Antoine, Uwe Send, Jeff Sevadjian, Vincenzo Vellucci
Summary: The study estimates daily mean photosynthetically available radiation (PAR) at the ice-free ocean surface using the EPIC/DSCOVR observations. The accuracy of the EPIC PAR product is important for studying aquatic photosynthesis, especially given uncertainties on the fraction of PAR absorbed by live algae and the quantum yield of carbon fixation.
FRONTIERS IN REMOTE SENSING
(2022)
Article
Ecology
Paula Maria Salgado-Hernanz, Aurore Regaudie-de-Gioux, David Antoine, Gotzon Basterretxea
Summary: We estimated the pelagic primary production in the coastal Mediterranean Sea and found that it contributes approximately 12% of the total carbon fixation in the region. The eastern basin has the highest production, followed by the western and Adriatic shelves. There is strong regional variability in coastal primary production, with some areas having high productivity associated with major river discharges and others having lower productivity in the southeastern Mediterranean. While interannual variations dominate the variability, a significant decline in primary production has been observed since 2012, coinciding with increasing sea surface temperatures and positive climate indices. Long-term trends show slight declines in most coastal areas except for the Adriatic, where primary production is increasing. The study emphasizes the importance of temporal and spatial scales of variability and provides insight into the contribution of coastal waters to the carbon balances in the Mediterranean Sea.
Article
Geosciences, Multidisciplinary
X. Flores-Melo, R. Giesecke, I. R. Schloss, M. P. Latorre, X. Durrieu de Madron, F. Bourrin, M. L. Spinelli, C. Menniti, H. E. Gonzales, E. Menschel, J. Martin
Summary: This study presents an evaluation of the downward fluxes and composition of particulate matter in the Beagle Channel. The results show that the fluxes and composition of particulate matter differ between the western and eastern parts of the channel, with the former influenced by glacial and organic material, and the latter dominated by river inputs and phytoplankton blooms. This research contributes to understanding the impact of climate change on the biological carbon pump and land-sea connections in this high-latitude ecosystem.
JOURNAL OF MARINE SYSTEMS
(2024)
Article
Geosciences, Multidisciplinary
Simone M. A. Lira, Ralf Schwamborn, Mauro de Melo Junior, Humberto L. Varona, Syumara Queiroz, Doris Veleda, Alef J. Silva, Sigrid Neumann-Leitao, Moacyr Araujo, Catarina R. Marcolin
Summary: In this study, CTD and ADCP data, as well as zooplankton samples from Fernando de Noronha Archipelago, were used to analyze the relationship between flow, island topography, chlorophyll-a fluorescence, and zooplankton abundance. The study found the presence of island and larval island effects downstream, and an upstream island effect upstream.
JOURNAL OF MARINE SYSTEMS
(2024)
Article
Geosciences, Multidisciplinary
Olga Yu. Evseeva, Alexander G. Dvoretsky
Summary: This study investigated the species composition and spatial distribution of bryozoan diversity in the southern region of Franz Josef Land. A total of 151 bryozoan species were found, including 22 species recorded for the first time in this region. The diversity of bryozoans in this area is influenced by environmental factors such as depth, temperature, and the content of stones and shells.
JOURNAL OF MARINE SYSTEMS
(2024)
Article
Geosciences, Multidisciplinary
Emma F. Young, Sally E. Thorpe, Angelika H. H. Renner, Eugene J. Murphy
Summary: Antarctic krill is a key species in the Southern Ocean and also the target of a commercial fishery. This study focuses on understanding the physical and behavioral drivers of krill movement and retention in the South Orkney Islands region through a regional modeling approach. The results suggest that oceanic transport and retention of krill are influenced by oceanographic variability and krill behavior.
JOURNAL OF MARINE SYSTEMS
(2024)
Article
Geosciences, Multidisciplinary
Viviane David, Anne Mouget, Pierre Thiriet, Corentin Minart, Yannick Perrot, Loic Le Goff, Olivier Bianchimani, Solene Basthard-Bogain, Tristan Estaque, Justine Richaume, Jean-Francois Sys, Adrien Cheminee, Eric Feunteun, Anthony Acou, Patrice Brehmer
Summary: Scientists combined split-beam and multibeam echosounders to detect and classify different fish species, and found that acoustic data significantly improved the accuracy of species classification. These acoustic methods have important implications for marine management and decision-making.
JOURNAL OF MARINE SYSTEMS
(2024)
Article
Geosciences, Multidisciplinary
Jia-Hui Xie, Xue-Lin Shao, Kai Ma, Li Gao
Summary: Chaetomorpha linum can store a large amount of phosphorus and utilize it for growth when phosphate is abundant, and it can produce alkaline phosphatase and release mobile phosphorus from sediments when phosphate is deficient. The sources of phosphorus supporting the blooms of C. linum vary seasonally in Swan Lagoon.
JOURNAL OF MARINE SYSTEMS
(2024)
Article
Geosciences, Multidisciplinary
A. A. Kubryakov, A. I. Mizyuk, S. V. Stanichny
Summary: This article investigates the evolution of the Sevastopol eddies using altimetry measurements and a high-resolution Nemo numerical model. The eddies can reside in the Black Sea for >3-6 months, impacting cross-shelf exchange and nutrient fluxes. The stationarity of the eddies is mainly due to the continental slope acting as a barrier, preventing cyclonic propagation.
JOURNAL OF MARINE SYSTEMS
(2024)
Article
Geosciences, Multidisciplinary
Qingyuan Yang, Guoping Zhu
Summary: This study investigated the feeding habits of the spiny icefish in the Bransfield Strait and used biochemical tracers to demonstrate the variability in its diet, which is influenced by the availability of krill and the dynamic hydrography. The results highlight the potential of biochemical tracers in reflecting changes in prey's diet in a highly dynamic environment.
JOURNAL OF MARINE SYSTEMS
(2024)
Article
Geosciences, Multidisciplinary
Andreana Cadaillon, Clara M. Iachetti, Ricardo Giesecke, Valeska Vasquez Lepio, Andrea Malits, Irene R. Schloss
Summary: A joint Chilean-Argentinian research cruise in the Beagle Channel revealed spatial and temporal heterogeneity of plankton abundance and composition. Plankton assemblages varied with bathymetry, water temperature, and nutrient availability. The easternmost sector of the channel had the highest total cell abundances and a diverse mix of small and large diatoms.
JOURNAL OF MARINE SYSTEMS
(2024)
Article
Geosciences, Multidisciplinary
Barbara P. Paiva, Carlos A. F. Schettini, Eduardo Siegle
Summary: The Sao Francisco River is an important river in Brazil, crossing the semi-arid region. A series of dams have been built along the river for hydropower, changing the flow significantly. A hydrodynamic model was used to simulate the effects of flow changes on saline intrusion in the estuary. The simulations showed an increase in mixing and decrease in river contribution after the dams were built. The results can be used by management agencies to improve water quality for human consumption.
JOURNAL OF MARINE SYSTEMS
(2024)
Article
Geosciences, Multidisciplinary
Xu Dong, Di Qi, Baohong Chen, Yingxu Wu, Xinqing Zheng, Hui Lin
Summary: Seasonal-scale local forcings reduce coastal pH and aragonite saturation state. The dynamics of carbonate system parameters were investigated in a coral habitat influenced by seasonal current patterns. Both Oaragonite and pH showed seasonal variations, controlled by dissolved inorganic carbon (DIC) and temperature. Ocean acidification scenarios projected a decrease in Oaragonite amplitude and an increase in hydrogen ion concentration ([H+]) amplitude.
JOURNAL OF MARINE SYSTEMS
(2024)
Article
Geosciences, Multidisciplinary
Roman Cieslinski, Izabela Chlost, Michal Szydlowski
Summary: The Vistula Lagoon, one of the two lagoons on the Polish coast, is economically and environmentally significant. This study aims to calculate the water balance of the lagoon before and after the construction of a canal through the Vistula Spit. The construction of the new connection may impact the lagoon's water balance and its biotic and abiotic environment. Data on precipitation, evaporation, inflow from the catchment, and inflow/outflow through the Strait of Baltiysk were collected for mathematical modeling. The study suggests that the construction of the new canal will not significantly alter the lagoon's water balance but may cause environmental problems.
JOURNAL OF MARINE SYSTEMS
(2024)
Article
Geosciences, Multidisciplinary
F. P. Brandini, A. M. Silver, A. Gangopadhyay
Summary: We demonstrate that wind-driven Ekman transport enhances the advection and mixing of cells, leading to the transport of colder water from the Surface Antarctic Waters to the warmer waters of the northern Polar Front belt. This mechanism provides cells with a favorable temperature environment, allowing for specific species and community growth rates to develop blooms under non-light limiting macronutrients and iron conditions. Our findings have important implications for increased productivity in a future warming climate.
JOURNAL OF MARINE SYSTEMS
(2024)
Article
Geosciences, Multidisciplinary
John E. Garzon-Cardona, Ana M. Martinez, Boris P. Koch, Bernd Krock, Elbio D. Palma, Xianyu Kong, Ruben J. Lara
Summary: This study aimed to gain a better understanding of the role of dissolved organic matter (DOM) in the biogeochemistry of the Southern Patagonian shelf. The results showed that terrigenous input is the main source of ammonium and refractory carbon in the region, while the Antarctic Circumpolar Current contributes autochthonous DOM. Additionally, regeneration processes of nitrogen-rich water were found in the Tierra del Fuego Waters and Grande Bay regions.
JOURNAL OF MARINE SYSTEMS
(2024)
Article
Geosciences, Multidisciplinary
Manoranjan Mishra, Tamoghna Acharyya, Bijay Halder, Celso Augusto Guimara Santos, Richarde Marques da Silva, Nihar Ranjan Rout, Debdeep Bhattacharyya
Summary: This study comprehensively analyzes the impacts of Tropical Cyclone Yaas on the mangrove forest in Bhitarkanika National Park, revealing significant ecosystem loss and changes in vegetation vigor and soil conditions, particularly an increase in salinity.
JOURNAL OF MARINE SYSTEMS
(2024)