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Isoprene Emissions in Africa Inferred from OMI Observations of Formaldehyde Columns
(European Geosciences Union, 2012)
We use 2005–2009 satellite observations of formaldehyde (HCHO) columns from the OMI instrument to infer biogenic isoprene emissions at monthly 1 × 1° resolution over the African continent. Our work includes new approaches ...
Upper-Ocean Singular Vectors of the North Atlantic Climate with Implications for Linear Predictability and Variability
(Wiley-Blackwell, 2012)
The limits of predictability of the meridional overturning circulation (MOC) and upper-ocean temperatures due to errors in ocean initial conditions and model parametrizations are investigated in an idealized configuration ...
Validation of TES Methane with HIPPO Aircraft Observations: Implications for Inverse Modeling of Methane Sources
(Copernicus GmbH, 2012)
We validate satellite methane observations from the Tropospheric Emission Spectrometer (TES) with 151 aircraft vertical profiles over the Pacific from the HIAPER Pole-to-Pole Observation (HIPPO) program. We find that a ...
Gas-Particle Partitioning of Atmospheric Hg(II) and Its Effect on Global Mercury Deposition
(Copernicus GmbH, 2012)
Atmospheric deposition of Hg(II) represents a major input of mercury to surface environments. The phase of Hg(II) (gas or particle) has important implications for deposition. We use long-term observations of reactive gaseous ...
Nitrogen Deposition to the United States: Distribution, Sources, and Processes
(European Geosciences Union, 2012)
We simulate nitrogen deposition over the US in 2006–2008 by using the GEOS-Chem global chemical transport model at 1/2°×2/3° horizontal resolution over North America and adjacent oceans. US emissions of NOx and NH3 in the ...
Riverine source of Arctic Ocean mercury inferred from atmospheric observations
(Springer Nature, 2012)
Methylmercury is a potent neurotoxin that accumulates in aquatic food webs. Human activities, including industry and mining, have increased inorganic mercury inputs to terrestrial and aquatic ecosystems. Methylation of ...
The United States' Next Generation of Atmospheric Composition and Coastal Ecosystem Measurements: NASA's Geostationary Coastal and Air Pollution Events (GEO-CAPE) Mission
(American Meteorological Society, 2012)
The Geostationary Coastal and Air Pollution Events (GEO-CAPE) mission was recommended by the National Research Council's (NRC's) Earth Science Decadal Survey to measure tropospheric trace gases and aerosols and coastal ...
Updated Definition and Correlation of the Lower Fifteenmile Group in the Central and Eastern Ogilvie Mountains
(Yukon Geological Survey, 2012)
Ongoing mapping, chemostratigraphy, geochronology, and stratigraphic analysis of Neoproterozoic successions in the Ogilvie Mountains requires redefinition and correlation of the Fifteenmile Group across the Proterozoic ...
Stable Isotope Geobiology
(John Wiley & Sons, Ltd, 2012)
Anaerobic Methane Oxidation in Metalliferous Hydrothermal Sediments: Influence on Carbon Flux and Decoupling from Sulfate Reduction
(Wiley-Blackwell, 2012)
The anaerobic oxidation of methane (AOM) is a globally significant sink that regulates methane flux from sediments into the oceans and atmosphere. Here we examine mesophilic to thermophilic AOM in hydrothermal sediments ...