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Undergraduate Students | Environmental Chemistry ...

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Meg Graustein (Chemical Oceanography, UConn, 20082010) Meg participated in the Gulf of Mexico Carbon Cruise sampling atmospheric concentrations of prefluorinated hydrocarbons. Her work resulted in a paper in Atmospheric Environment (Survey of polyfluorinated chemicals (PFCs) in the atmosphere over the northeast Atlantic Ocean).

Ecosystem science and human–environment interactions in ...

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10/4/2006· We can check the accuracy of cation sources using isotopes of strontium (Graustein 1989). Sr is an alkaline earth element like Ca and Mg; it has multiple stable isotopes, and the ratio of two of these ( 87 Sr and 86 Sr) varies substantially and reliably between Hawaiian basalt ( 87 Sr/ 86 Sr = ), marine aerosol (), and Asian dust ( c. ) ( Kennedy et al . 1998 ; Wiegand et al ...

LargeScale Sensing and Diagnosis in Relation to the ...

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Graustein WC (1989) 87 Sr/ 86 Sr ratios measure the sources and flow of strontium in terrestrial ecosystems. In: Rundel PW, Ehleringer JR, Nagy KA (eds) Stable isotopes in ecological research. Ecological studies, vol 68.

(PDF) Mineralogy controls oxalic acid release in ...

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Graustein et al., 1977; Landeweert et al., 2001). We are aware of only one study showing a mineralspecific response in EcM fungal oxalate production (Schmalenberger et al., 2009), but, as in our ...

Enhanced immobilization of Prussian blue through hydrogel ...

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8/11/2019· Graustein, W. C. Turekian, K. K. The Effects Of Forests And Topography On The Deposition Of SubMicrometer Aerosols Measured By Lead210 …

Atmospheric Component an overview | ScienceDirect Topics

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Carbon dioxide and N 2 are the major atmospheric components on Mars and Venus (Table 1).CO 2 is a major component of terrestrial volcanic gases (Oppenheimer, 2003; Symonds et al., 1994) and could be an abundant product of mantle outgassing on other terrestrial Venus, the mass of atmospheric CO 2 is similar to the mass of CO 2 stored in terrestrial crustal carbonates (Table 4).

GeoHannover 2012 GeoRohstoffe für das 21. Jahrhundert ...

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CO2ECBM: Application of laboratory results to reservoirs Yves Gensterblum, Alexej Merkel, ... Applied geological remote sensing 229 ... SprembergGrausteinSchleife Dieter Mucke, Rolf Kumann, Thomas Kaltschmidt 338 Zechstein ...

Penny Vlahos | Marine Sciences

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Penny Vlahos. Our group’s research interests are in the geochemistry of carbon and nitrogen, particularly in understanding and identifying the processes that control the global cycling of carbon (with an emphasis on organic carbon). The cycling of carbon on our planet is of critical importance to the biosphere, our climate and is directly ...

Temporal variability of lagoon–sea water exchange and ...

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9/4/2019· Water samples for solute and carbon measurement were syringe filtered using μm cellulose acetate filters into rinsed 60 mL lowdensity polyethylene vials. Water samples were diluted 10x with deionized water and analyzed for dissolved Ba and Si by inductively coupled plasma optical emission spectrometry (Horiba Jobin Yvon Ultima2®); analytical precision is ≤ 10%.

ACP A study of the influence of tropospheric subsidence ...

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Graustein, W. and Turekian, K. K.: 7 Be and 210 Pb indicate an upper troposphere source for elevated ozone in the summertime subtropical free troposphere of the eastern North Atlantic, Geophys. Res. Lett., 23, 539–542, 1996.

Machine learning and artificial intelligence to aid ...

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22/11/2019· For example, plant production of oxalates is a key driver of nutrient and biogeochemical cycles (Graustein et al 1977), and can directly affect local and regional climate via formation of cloud condensation nuclei (Zhou et al 2015) and indirectly via feedbacks to carbon sequestration (Tooulakou et al …

Temporal Variations of 7Be and 210Pb Activity ...

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4 October 2018: Invited talk for the 30 years of the International Society of Soil Mechanics and Geotechnical Engineering, “The impact of climate change on water, on droughts and on soils”, Paris France. 5 November 2018 : Invited talk at kickoff meeting of ERC FRAGMENT, Barcelona, Spain, “Modelling dust mineralogy”, Barcelone, Spain.

Atmospheric pressure effects on 222Rn transport across the ...

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The effect of large‐scale atmospheric pressure changes on the 222Rn flux across the soil‐air interface is investigated. Field data collected during 1972 and 1973 show that pressure changes of 1–2% ...

Long‐range atmospheric transport of terrestrial biomarkers ...

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1. Introduction [2] The atmosphere/ocean interface is one of the largest and most important interfaces on Earth. The atmosphere is the most significant transport pathway for many of the inorganic and organic chemical species found in the marine environment [Gagosian and Peltzer, 1986; Duce et al., 1991].The atmosphere delivers terrestrial carbon to the oceans at an estimated rate of 20 Tg yr ...

LargeScale Sensing and Diagnosis in Relation to the ...

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Graustein WC (1989) 87Sr/86Sr ratios measure the sources and flow of strontium in terrestrial ecosystems. In: Rundel PW, Ehleringer JR, Nagy KA (eds) Stable isotopes in ecological research. Ecological studies, vol 68. Springer, Berlin Heidelberg New York, pp 491–512 Google Scholar

Gulf of Mexico and East Coast Carbon Cruise (GOMECC)

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Coast Carbon (GOMECC) Cruise (Figure 1) along the coast of Gulf of Mexico and Atlantic coast to study carbon cycle processes in the coastal zone over a wide range of oceanographic, atmospheric, and biogeochemical conditions. The coastal ocean plays a critical role in the North American carbon cycle and global carbon dynamics. It is a

Environmental Measurement an overview | ScienceDirect Topics

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The Brewer–Mast sensor uses similar ozone detection reaction, but instead of a reference chamber, the driving potential for the measurement circuit is an electrical circuit. The ECCtype sensor is more accurate and is more widely used. The Vaisala radioactivity sonde is a combination of a radioactivity sensor and a modified radiosonde.

Enerbit Power Technology | Energy News and Market Analysis

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Other modules are also available from Enerbit including startup loss monitoring, fuel mix optimisation, soft sensors, KPIs visualisation, production accounting, reporting, predictive maintenance and whatif simulators. White Papers

ESSD Relations A global dataset of atmospheric 7Be and ...

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Global atmospheric carbon monoxide budget 2000–2017 inferred from multispecies atmospheric inversions Bo Zheng, Frederic Chevallier, Yi Yin, Philippe Ciais, Audrey FortemsCheiney, Merritt N. Deeter, Robert J. Parker, Yilong Wang, Helen M. Worden, and Yuanhong Zhao

yves balkanski

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Invited presentations. 12 January 2016: Invited Talk Winter Enrichment Program, Natural aerosols: Role in climate and influence on biogeochemical cycles, King Abdullah University for Science and Technology, Jeddah, Saudi Arabia.. 17 February 2016: Invited talk “ The Science Basis of Climate Change, Presentation of the Conclusions of IPCC AR5”, Institut Universitaire Technologique, Orsay ...

Geo Metrics Iii The Application Of Geometric Dimensioning ...

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lifestyle sensing, geotagged big data and related technologies are helping us ... and the William Caspar Graustein Professor of Mathematics at Harvard University.. Yau was born in Shantou, China, moved to Hong Kong at a young ... carbon nanotubes–graphene oxide ...

Temporal Variations of 7Be and 210Pb Activity ...

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24/4/2020· ABSTRACT Naturally occurring beryllium7 (7Be) and lead210 (210Pb) serve as powerful tracers in atmospheric studies. In this study, 7Be and 210Pb were simultaneously measured in atmospheric aerosols and deposition samples for an entire year (from January to December 2017) in Shenzhen, South China. The activity concentrations of the airborne 7Be and 210Pb ranged from …

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