Results 31 to 40 of about 240,361 (354)

Refining the interpretation of lacustrine carbonate isotope records: Implications of a mineralogy-specific Lake Van case study [PDF]

, 2019
Oxygen and carbon isotope (δ18O and δ13C) data from bulk carbonates are widely applied proxies for temperature, the precipitation/evaporation ratio and productivity in lacustrine palaeohydrology and palaeoclimatology. In case of the terminal and alkaline
Immenhauser, Adrian, Jöns, Niels, Kwiecien, Ola, McCormack, Jeremy, Nehrke, Gernot   +4 more
core   +1 more source

An analytical system for stable isotope analysis on carbon monoxide using continuous-flow isotope-ratio mass spectrometry [PDF]

Atmospheric Measurement Techniques, 2015
A fully automated system for the determination of δ13C and δ18O in atmospheric CO has been developed. CO is extracted from an air sample and converted into carbon dioxide (CO2) using the Schütze reagent.
S. L. Pathirana, C. van der Veen, M. E. Popa, T. Röckmann   +3 more
doaj   +1 more source

Evapotranspiration and water use efficiency in relation to climate and canopy nitrogen in U.S. forests [PDF]

, 2016
Understanding relations among forest carbon (C) uptake and water use is critical for predicting forest-climate interactions. Although the basic properties of tree-water relations have long been known, our understanding of broader-scale patterns is ...
Anav, Atkin, Badeck, Baldocchi, Baldocchi, Baldocchi, Baldocchi, Baldocchi, Barbour, Barbour, Barbour, Barnard, Beer, Belmecheri, Berry, Betts, Bolster, Bonan, Bonan, Bright, Brugnoli, Buckley, Canadell, Carnicer, Catovsky, Cernusak, Chen, Clark, Craig, Davin, Desai, Dickinson, Dongmann, Donovan, Dore, Evans, Ewers, Farquhar, Farquhar, Farquhar, Farquhar, Farquhar, Federer, Fernández-Martínez, Fernández-Martínez, Flanagan, Flexas, Gessler, Gessler, Grams, Grassi, Guerrieri, Heimann, Jennings, Keenan, Keitel, Kergoat, Kunert, Law, Lee, Leonelli, Lepine, Liang, Loescher, Luyssaert, Lévesque, Magnani, Martin, Martínez-Vilalta, Meinzer, Meir, Michelot, Moffat, Monson, Moreno-Gutiérrez, Niinemets, Niu, Ollinger, Ollinger, Pan, Pan, Papale, Paquette, Ponton, Post, Potter, Powell, Reichstein, Reichstein, Renninger, Richardson, Ripullone, Roden, Roden, Roden, Roman, Sage, Scartazza, Scheidegger, Schulze, Seibt, Siegwolf, Smith, Smith, Song, Sullivan, Tang, Tang, Tardieu, Valentini, Valentini, Wang, Warren, Wehr, Wright, Xiao, Xiao, Xu, Zhang, Zhu   +119 more
core   +3 more sources

Ontogenetic Growth Changes in Mercury and Stable Isotope Ratios of Carbon, Nitrogen, and Oxygen in Male and Female Dalli-Type Dall’s Porpoises (Phocoenoides dalli) Stranded in Hokkaido, Japan

Journal of Marine Science and Engineering
We investigated the ontogenetic growth changes in total mercury (THg) concentrations, δ13C, δ15N, and δ18O values, and body length (BL) of dalli-type Dall’s porpoises.
Tetsuya Endo, Osamu Kimura, Masaru Terasaki, Yoshihisa Kato, Yukiko Fujii, Koichi Haraguchi   +5 more
doaj   +1 more source

Seasonal trends of the stable nitrogen isotope ratio in particulate nitrogen compounds and their gaseous precursors in Akita, Japan

Tellus: Series B, Chemical and Physical Meteorology, 2019
Particulate matter (PM) can have adverse effects on human health. Moreover, because the mechanisms of PM formation and behavior in the atmosphere are notably complicated, to reduce PM concentrations effectively and meet environmental standards, source ...
Hiroto Kawashima
doaj   +1 more source

Stable Carbon Isotope Ratio (δ13C) Measurement of Graphite Using EA-IRMS System

Medžiagotyra, 2015
δ13C values in non-irradiated natural graphite were measured. The measurements were carried out using an elemental analyzer combined with stable isotope ratio mass spectrometer (EA-IRMS). The samples were prepared with ground and non-ground graphite, the
Andrius Garbaras, Edmundas Bružas, Vidmantas Remeikis   +2 more
doaj   +1 more source

Uniform Silicon Isotope Ratios Across the Milky Way Galaxy

, 2017
We report the relative abundances of the three stable isotopes of silicon, $^{28}$Si, $^{29}$Si and $^{30}$Si, across the Galaxy using the $v = 0, J = 1 \to 0$ transition of silicon monoxide. The chosen sources represent a range in Galactocentric radii ($
Monson, Nathaniel N., Morris, Mark R., Young, Edward D.   +2 more
core   +1 more source

Illuminating hydrological processes at the soil-vegetation-atmosphere interface with water stable isotopes [PDF]

, 2016
Funded by DFG research project “From Catchments as Organised Systems to Models based on Functional Units” (FOR 1Peer reviewedPublisher PDFPublisher ...
Adomako, Ali, Allen, Allen, Allison, Allison, Allison, Ambach, Anderson, Araguás-Araguás, Asano, Asbjornsen, Bachmann, Barbeta, Bariac, Barnes, Bayala, Bengtsson, Berman, Berry, Bertrand, Beven, Beyer, Beyer, Bijoor, Birkel, Birkel, Blume, Botter, Boutton, Bowen, Bowen, Bowen, Brandes, Braud, Brinkmann, Brodersen, Brooks, Brooks, Brooks, Brooks, Burger, Cheng, Clark, Comas-Bru, Coplen, Craig, Craig, Craig, Cui, Cui, Cui, Dai, Dansgaard, Darling, David, Dawson, Dawson, DeWalle, DeWalle, DeWalle, Dincer, Dubbert, Dubbert, Dubbert, Dutton, Eggemeyer, Ehleringer, Ehleringer, Eichler, Ellsworth, Ellsworth, Emerman, Evaristo, Fairburn, Ferretti, Fujimoto, Gaj, Gangi, Garvelmann, Gat, Gat, Gazis, Gehrels, Geris, Gibson, Goldsmith, Gonfiantini, Gonfiantini, Gonfiantini, Good, Gralher, Hannes Leistert, Hao, Hargreaves, Herbstritt, Holland, Hopmans, Horita, Horton, Hrachowitz, Hsieh, Hu, Huang, Hursh, Ikawa, Ingraham, Jackson, Jasechko, Jia, Kabeya, Kabeya, Katharina Gimbel, Kelln, Kendall, Kendall, Kendall, Kim, Klaus, Klaus, Kline, Koeniger, Koeniger, Koeniger, Koeniger, Komor, Kool, Kudo, Kulmatiski, Kulmatiski, Kurz-Besson, Lai, Landon, Landon, Landwehr, Landwehr, Le Roux, Leaney, Lee, Lee, Leibundgut, Leng, Leopoldo, Lin, Lindström, Liu, Liu, Liu, Liu, Lutz, M., Majoube, Mali, Mali, Maloszewski, Markus Weiler, Mathieu, Matthias Sprenger, McCole, McDonnell, McDonnell, McDonnell, McDonnell, McDonnell, McGuire, McGuire, McGuire, McGuire, McGuire, McMillan, Meinzer, Meinzer, Meißner, Mensforth, Moore, Moreira, Mueller, Murad, Murad, Muñoz-Villers, Münnich, Münnich, O'Driscoll, Oerter, Ogle, Ogle, Ohte, Orlowski, Orlowski, Orlowski, Orlowski, Oshun, Palacio, Pangle, Pangle, Parnell, Penman, Penman, Penna, Peralta-Tapia, Phillips, Pionke, Revesz, Richards, Rinaldo, Robertson, Rodhe, Rong, Rose, Rossatto, Rossatto, Rothfuss, Rothfuss, Rozanski, Sami, Saxena, Schlaepfer, Scholl, Schwendenmann, Seiler, Simonin, Simpson, Singleton, Snyder, Soderberg, Song, Song, Soulsby, Sprenger, Sprenger, Sprenger, Sprenger, Stanhill, Stewart, Stumpp, Stumpp, Stumpp, Stumpp, Stumpp, Stumpp, Stumpp, Sun, Sutanto, Swaffer, Tang, Tetzlaff, Thomas, Timbe, Timbe, Treydte, Twining, Vanderborght, Vereecken, Vitvar, Vogel, Volkmann, Volkmann, Volkmann, Wang, Wang, Wang, Wang, Wassenaar, Wei, Welker, Wenner, Wenninger, Wershaw, Wessolek, West, West, White, White, Williams, Windhorst, Windhorst, Xu, Yeh, Zhang, Zhang, Zhang, Zhou, Zhou, Zhou, Zhu, Zimmermann, Zimmermann, Zimmermann   +287 more
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Concentrations and isotope ratios of helium and other noble gases in the Earth's atmosphere during 1978-2011

, 2012
The evolution of the atmospheric noble gas composition during the past few decades has hardly been studied because, in contrast to many other atmospheric gases, systematic time-series measurements have not been available.
Colin Maden, L. Paul Steele, Martin K. Vollmer, Matthias S. Brennwald, Nadia Vogel, Ray Langenfelds, Rolf Kipfer, Simon Figura   +7 more
core   +1 more source

Late Maastrichtian carbon isotope stratigraphy and cyclostratigraphy of the Newfoundland Margin (Site U1403, IODP Expedition 342) [PDF]

, 2018
Earth’s climate during the Maastrichtian (latest Cretaceous) was punctuated by brief warming and cooling episodes, accompanied by perturbations of the global carbon cycle.
Agnini, Claudia, Batenburg, S., Blum, P., Bornemann, A., Boulila, S., Bown, P. R., Courn\ue8de, C., Fehr, A., Fiebig, J., Friedrich, O., Ghosh, A. K., Hasegawa, T., Hollis, C. J., Hull, P. M., Jo, K., Junium, C. K., Kaneko, M., Liebrand, D., Lippert, P. C., Liu, Z., Matsui, H., Moebius, I., Moriya, K., Nishi, H., Norris, R. D., Opdyke, B. N., Penman, D., R\uf6hl, U., Romans, B., Scher, H. D., Sexton, P., Takagi, H., Turner, S. K., Voigt, S., Westerhold, T., Whiteside, J. H., Wilson, P. A., Yamaguchi, T., Yamamoto, Y.   +38 more
core   +3 more sources