Browse Journal Highlights
New statistical model emphasizes role of spatial correlation
Editor’s Highlight— This paper presents a statistical methodology to assess uncertainties in ocean chlorophyll trends. It provides strong evidence that significant differences exist in regional and global trends when compared with linear temporal models that have been widely used in other work. This.... more
Impacts of ENSO on air-sea oxygen exchange: observations and mechanisms
Editors’ Highlights— The exchange of oxygen between the air and sea reflects the physical and biogeochemical processes of the ocean and their interactions. Our understanding of the responses of the above-ocean processes to climate change could be improved with insights into the inter-annual variability.... more
Seasonal and spatial variability in northern Gulf of Alaska surface-water iron concentrations driven by shelf sediment resuspension, glacial meltwater, a Yakutat eddy, and dust
Editors' Highlight— This paper examines the transfer of iron (Fe) from shelf to ocean in a high latitude environment. It is based on data collected from three research cruises in the northern Gulf of Alaska along a transect from the mouth of the Copper River to beyond the shelf break. The authors discuss.... more
Strong biotic influences on regional patterns of climate regulation services
Editor's Highlights— A number of biogeochemical fluxes – from carbon sequestration to water balance – are also ecosystem services. This paper links the two in an assessment of the factors that influence ecosystems services provided by temperate forests. Specifically, the authors perform a statistical.... more
What’s the Average Methane Isotope Signature in Arctic Wetlands?
From Eos.org: Research Spotlights— Aircraft measurements confirm that methane emissions from northern European wetlands exhibit a uniform regional carbon isotopic signature, despite considerable ground-level heterogeneity. Although methane (CH4) is a potent greenhouse gas, the relative contributions.... more
Why Is There So Much Carbon Dioxide in Rivers?
From Eos.org: Research Spotlights— Observations of carbon dioxide oversaturation in the freshwater of the world led scientists to study its underlying causes at more than 100 field locations across the nation. Studies have shown that many of the world’s freshwater rivers and streams are oversaturated.... more
High Arctic Emissions of a Strong Greenhouse Gas
From Eos.org: Research Spotlights— Isotope data bring scientists one step closer to revealing the microbial processes behind nitrous oxide emission in the tundra. Nitrous oxide, often called “laughing gas,” is perhaps most famous for its use as an anesthetic. However, it is also a powerful greenhouse.... more
Carbon balance in subglacial hydrochemical systems
Editors’ Highlight—This paper addresses a hotly-debated topic as to whether rock weathering below glaciers is a critical and long-term source of atmospheric CO2 consumption or whether some of the CO2 consumed may be from decomposing organic material. The authors compared a model of subglacial pH and.... more
Calculating surface ocean pCO2 from biogeochemical Argo floats equipped with pH: an uncertainty analysis
Editor's Highlight—This paper presents a dataset on carbon in the Southern Ocean. Surface partial pressure of carbon dioxide (pCO2) is calculated from measurements of pH on 74 biogeochemical profiling floats. Wintertime data in the Southern Ocean is notoriously sparse. These new data reveal significantly.... more
What Proportion of River Nutrients Reach the Open Sea?
From Eos.org: Research Spotlights—Results of the first geographically based estimates of river nutrient supply indicate that 75% of dissolved nitrogen and 80% of phosphorous reach the open ocean. Although it is widely recognized that the world’s rivers deliver substantial amounts of dissolved nitrogen.... more
- New statistical model emphasizes role of spatial correlation
- Impacts of ENSO on air-sea oxygen exchange: observations and mechanisms
- Seasonal and spatial variability in northern Gulf of Alaska surface-water iron concentrations driven by shelf sediment resuspension, glacial meltwater, a Yakutat eddy, and dust
- Strong biotic influences on regional patterns of climate regulation services
Eos.org: Earth & Space Science News
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