Search Results - "Schwandner, Florian"
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Spaceborne detection of localized carbon dioxide sources
Published in Science (American Association for the Advancement of Science) (13-10-2017)“…Spaceborne measurements by NASA's Orbiting Carbon Observatory-2 (OCO-2) at the kilometer scale reveal distinct structures of atmospheric carbon dioxide (CO )…”
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Dynamics of volcanic vortex rings
Published in Scientific reports (09-02-2023)“…Vortex rings can easily be generated in the laboratory or with homemade devices, but they have also been observed on volcanoes, since the eighteenth century…”
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NASA's surface biology and geology designated observable: A perspective on surface imaging algorithms
Published in Remote sensing of environment (01-05-2021)“…The 2017–2027 National Academies' Decadal Survey, Thriving on Our Changing Planet, recommended Surface Biology and Geology (SBG) as a “Designated Targeted…”
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Carbon Dioxide Emissions During the 2018 Kilauea Volcano Eruption Estimated Using OCO‐2 Satellite Retrievals
Published in Geophysical research letters (28-12-2020)“…This study applies Orbiting Carbon Observatory‐2 (OCO‐2) column‐averaged dry‐air mole fractions of CO2 (XCO2) to constrain CO2 fluxes during the 2018 Kilauea…”
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Observations of atmospheric reactive nitrogen species in Rocky Mountain National Park and across northern Colorado
Published in Atmospheric environment (1994) (01-01-2013)“…Increasing rates of nitrogen deposition are a concern in many protected ecosystems. Understanding the sources influencing these regions can be a challenge as…”
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The Cross-Calibration of Spectral Radiances and Cross-Validation of CO2 Estimates from GOSAT and OCO-2
Published in Remote sensing (Basel, Switzerland) (01-11-2017)“…The Greenhouse gases Observing SATellite (GOSAT) launched in January 2009 has provided radiance spectra with a Fourier Transform Spectrometer for more than…”
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Observations of ammonia, nitric acid, and fine particles in a rural gas production region
Published in Atmospheric environment (1994) (01-02-2014)“…Continuous measurements of the atmospheric trace gases ammonia (NH3) and nitric acid (HNO3) and of fine particle (PM2.5) ammonium (NH4+), nitrate (NO3−) and…”
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Bi-Directional Reflectance Factor Determination of the Railroad Valley Playa
Published in Remote sensing (Basel, Switzerland) (06-11-2019)“…Vicarious calibration is the determination of an on-orbit sensor’s radiometric response using measurements over test sites such as Railroad Valley (RRV),…”
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Long-Term Vicarious Calibration of GOSAT Short-Wave Sensors: Techniques for Error Reduction and New Estimates of Radiometric Degradation Factors
Published in IEEE transactions on geoscience and remote sensing (01-07-2014)“…This work describes the radiometric calibration of the short-wave infrared (SWIR) bands of two instruments aboard the Greenhouse gases Observing SATellite…”
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Halocarbons and other trace heteroatomic organic compounds in volcanic gases from Vulcano (Aeolian Islands, Italy)
Published in Geochimica et cosmochimica acta (15-01-2013)“…Adsorbent-trapped volcanic gases, sublimates and condensates from active vents of the La Fossa crater on the island of Vulcano (Aeolian Islands, Italy) as well…”
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Plant responses to volcanically elevated CO2 in two Costa Rican forests
Published in Biogeosciences (01-04-2019)“…We explore the use of active volcanoes to determine the short- and long-term effects of elevated CO2 on tropical trees. Active volcanoes continuously but…”
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Ecosystem responses to elevated CO2 using airborne remote sensing at Mammoth Mountain, California
Published in Biogeosciences (14-12-2018)“…We present an exploratory study examining the use of airborne remote-sensing observations to detect ecological responses to elevatedCO2 emissions from active…”
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Deposition of reactive nitrogen during the Rocky Mountain Airborne Nitrogen and Sulfur (RoMANS) study
Published in Environmental pollution (1987) (01-03-2010)“…Increases in reactive nitrogen deposition are a growing concern in the U.S. Rocky Mountain west. The Rocky Mountain Airborne Nitrogen and Sulfur (RoMANS) study…”
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High-sensitivity microchip electrophoresis determination of inorganic anions and oxalate in atmospheric aerosols with adjustable selectivity and conductivity detection
Published in Journal of Chromatography A (27-02-2009)“…A sensitive and selective separation of common anionic constituents of atmospheric aerosols, sulfate, nitrate, chloride, and oxalate, is presented using…”
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Formate as an energy source for microbial metabolism in chemosynthetic zones of hydrothermal ecosystems
Published in Astrobiology (01-12-2007)“…Formate, a simple organic acid known to support chemotrophic hyperthermophiles, is found in hot springs of varying temperature and pH. However, it is not yet…”
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A geo-spatial data management system for potentially active volcanoes—GEOWARN project
Published in Computers & geosciences (01-02-2006)“…Integrated studies of active volcanic systems for the purpose of long-term monitoring and forecast and short-term eruption prediction require large numbers of…”
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Diffuse emission of organic trace gases from the flank and crater of a quiescent active volcano (Vulcano, Aeolian Islands, Italy)
Published in Journal of Geophysical Research - Atmospheres (27-02-2004)“…Volcanoes discharge a range of inorganic major gas species (e.g., H2O, CO2, SO2, and CO) not only during eruptions but also during quiescent phases through…”
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The on-orbit performance of the Orbiting Carbon Observatory-2 (OCO-2) instrument and its radiometrically calibrated products
Published in Atmospheric measurement techniques (05-01-2017)“…The Orbiting Carbon Observatory-2 (OCO-2) carries and points a three-channel imaging grating spectrometer designed to collect high-resolution, co-boresighted…”
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Total CO2 budget estimate and degassing dynamics for an active stratovolcano: Turrialba Volcano, Costa Rica
Published in Journal of volcanology and geothermal research (01-06-2024)“…Distributions and concentrations of carbon dioxide being emitted from active volcanoes elucidate the subsurface controls on gas ascent from the source and…”
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Vicarious Calibration of Orbiting Carbon Observatory-2
Published in IEEE transactions on geoscience and remote sensing (01-07-2019)“…Vicarious calibration methods use well-characterized surface sites to complement other on-orbit radiometric calibration techniques. Since 2009, NASA's Orbiting…”
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