Spatial and Interannual Variability in Distributions and Cycling of Summer Biogenic Sulfur in the Bering Sea

Li, Chengxuan; Wang, Baodong; Wang, Zi‐Cheng; Li, Jiang; Yang, Gui‐Peng; Chen, Jian‐Fang; Lin, Li‐Na; Lyu, Yang; Guo, Fu

doi:10.1029/2018gl080446

Cited by 10 publications

(8 citation statements)

References 42 publications

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“…Enhanced DMS emissions associated with sea ice loss and higher surface water temperatures have already been reported over the summertime Arctic Ocean (Galí et al, 2019;Li et al, 2019). Further sea ice loss might increase the productivity of pelagic phytoplankton (Ardyna et al, 2014;Renaut et al, 2018), and/ or seawater-atmosphere exchange, which could lead to even higher atmospheric DMS concentrations in the future.…”

Section: Conclusion and Implications For The Changing Arctic Environmentmentioning

confidence: 91%

Differing Mechanisms of New Particle Formation at Two Arctic Sites

Beck

Sarnela

Junninen

et al. 2021

Geophysical Research Letters

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New particle formation in the Arctic atmosphere is an important source of aerosol particles. Understanding the processes of Arctic secondary aerosol formation is crucial due to their significant impact on cloud properties and therefore Arctic amplification. We observed the molecular formation of new particles from low‐volatility vapors at two Arctic sites with differing surroundings. In Svalbard, sulfuric acid (SA) and methane sulfonic acid (MSA) contribute to the formation of secondary aerosol and to some extent to cloud condensation nuclei (CCN). This occurs via ion‐induced nucleation of SA and NH3 and subsequent growth by mainly SA and MSA condensation during springtime and highly oxygenated organic molecules during summertime. By contrast, in an ice‐covered region around Villum, we observed new particle formation driven by iodic acid but its concentration was insufficient to grow nucleated particles to CCN sizes. Our results provide new insight about sources and precursors of Arctic secondary aerosol particles.

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Section: Conclusion and Implications For The Changing Arctic Environmentmentioning

confidence: 91%

Differing Mechanisms of New Particle Formation at Two Arctic Sites

Beck

Sarnela

Junninen

et al. 2021

Geophysical Research Letters

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“…This change in temperature might lead to an increase in F DMS from 3.0% to 22.9% if we assume the other parameters, i.e., wind speed and seawater DMS levels, remain stable. Results from a study in the subpolar region indicated that the warming of the Bering Sea resulted in a significant increase in DMS, DMSP and F DMS (Li et al., 2019). A warmer summer Arctic Ocean might have the same effect on both seawater DMS and F DMS (Gabric et al., 2005).…”

Section: Summary and Implicationsmentioning

confidence: 99%

Unravelling Surface Seawater DMS Concentration and Sea‐To‐Air Flux Changes After Sea Ice Retreat in the Western Arctic Ocean

Zhang

Marandino

Yan

et al. 2021

Global Biogeochemical Cycles

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The receding of the seasonal ice cover in the Arctic due to climate change has been predicted by models to increase climate‐active biogenic trace gas emissions, specifically those of dimethylsulfide (DMS). However, insufficient DMS measurements are currently available to either support or refute this hypothesis and to fully understand the various responses of oceanic DMS in a rapidly changing Arctic Ocean environment. Here, we present high‐resolution surface water DMS data collected in the summer of 2014 in combination with a suite of ancillary variables including sea ice cover, salinity, and nutrients. We show that surface seawater DMS concentrations, generally below 0.5 nmol L−1, remained unchanged in the Canada Basin after sea ice retreat probably due to insufficient nutrients supply to the upper mixed layer and resulting low primary production. Moreover, in the Chukchi shelf region, DMS concentrations decreased following a phytoplankton bloom due to the rapid depletion and slow resupply of nutrients. Although the DMS sea‐to‐air fluxes were not high from a global perspective, they increased by a factor of 4‐fold after sea ice retreat in the Arctic Ocean high latitudes. This increase in DMS flux was mainly driven by increased wind speed. This work provides unique observations and insights on how surface seawater DMS and flux to the atmosphere may change in the future Arctic Ocean.

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“…Nitrate is a limiting nutrient and is decreasing on decadal timescale (Zhuang, Jin, Cai, et al., 2021) or even thousands of years (Farmer et al., 2021) in surface Arctic waters. The supply and recycling of nitrate can significantly impact primary production (Arrigo & van Dijken, 2015; Tremblay et al., 2015), marine phytoplankton cell size (Nishino et al., 2018; Zhuang et al., 2016), carbon dioxide (CO 2 ) budget (Ouyang et al., 2021; Qi et al., 2022), ocean alkalinity budget (Hu & Cai, 2011), and biogenic gas emissions (Li et al., 2019; Zhang et al., 2021) in the western Arctic Ocean. As such, the nitrate cycle in the Arctic waters has received considerable attention (e.g., Granger et al., 2013; Nishino et al., 2020; Shiozaki et al., 2018; Tremblay et al., 2011; Zhuang, Jin, Zhang, et al., 2021).…”

Section: Introductionmentioning

confidence: 99%

Extreme Nitrate Deficits in the Western Arctic Ocean: Origin, Decadal Changes, and Implications for Denitrification on a Polar Marginal Shelf

Zhuang

Jin

Cai

et al. 2022

Global Biogeochemical Cycles

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In the global oceans, a nitrate deficit (the shortage of nitrate relative to phosphate) occurs when processes leading to nitrate sinks (e.g., denitrification) become larger than those resulting in nitrate sources (e.g., N 2 fixation) in the nitrogen budget. Large regions of extreme nitrate deficit (of greater than 10 μmol/kg) often coincide with oxygen minimum zones such as in the Arabian Sea, where strong water column denitrification occurs (Gruber & Galloway, 2008). Extreme nitrate deficit in the subsurface of the western Arctic Ocean has a different causal mechanism, with minimal local or in situ water column denitrification (Reeve et al., 2019). Here, nitrate deficit coincides with the lateral transport of a water mass that is continuously influenced by denitrification process on the shelf sea floor (

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Spatial and Interannual Variability in Distributions and Cycling of Summer Biogenic Sulfur in the Bering Sea

Cited by 10 publications

References 42 publications

Differing Mechanisms of New Particle Formation at Two Arctic Sites

Differing Mechanisms of New Particle Formation at Two Arctic Sites

Unravelling Surface Seawater DMS Concentration and Sea‐To‐Air Flux Changes After Sea Ice Retreat in the Western Arctic Ocean

Extreme Nitrate Deficits in the Western Arctic Ocean: Origin, Decadal Changes, and Implications for Denitrification on a Polar Marginal Shelf

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