Browse Journal Highlights
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
Declining spatial efficiency of global cropland nitrogen allocation
Editors’ Highlight The efficiency of use of fertilizer nitrogen is critical for the increasing global food production while reducing nitrogen pollution. This paper establishes historical records of cropland nitrogen budgets and shows how the regional and temporal trends affect the efficiency of nitrogen.... more
Tiny Creatures Form Massive, Bright Ring Around Antarctica
From Eos.org: Research Spotlights— Dense algae populations in the Great Calcite Belt could cause carbon dioxide release from the ocean into the atmosphere. Every year during the austral summer, satellite imagery reveals a wide belt of unusually reflective seawater encircling Antarctica between about.... more
Evaluating the drought response of CMIP5 models using global gross primary productivity, leaf area, precipitation, and soil moisture data
Editors’ Highlight The conclusion of the paper that CMIP5 models tend to exaggerate the modeled response of gross primary productivity (GPP) and leaf area index (LAI) to drought is important and will be of interest to modeling groups and to those that use these models to assess the climate and ecosystem.... more
Eos.org: Earth & Space Science News
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