Zobrazeno 1 - 10
of 7 656
pro vyhledávání: '"L, Geng"'
Publikováno v:
The Cryosphere, Vol 18, Pp 4547-4565 (2024)
Ice-core water isotopes contain valuable information on past climate changes. However, such information can be altered by post-depositional processing after snow deposition. Atmosphere–snow water vapor exchange is one such process, but its influenc
Externí odkaz:
https://doaj.org/article/de72ba3e49e94443aa8729cadd1ff315
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 4895-4914 (2024)
Comprehensive evaluation of the effects of post-depositional processing is a prerequisite for appropriately interpreting ice-core records of nitrate concentration and isotopes. In this study, we developed an inverse model that uses archived snow/ice-
Externí odkaz:
https://doaj.org/article/b3f7c61418074576a07ce44cbb87f02a
Autor:
P. A. Adderley, S. Ahmed, T. Allison, R. Bachimanchi, K. Baggett, M. BastaniNejad, B. Bevins, M. Bevins, M. Bickley, R. M. Bodenstein, S. A. Bogacz, M. Bruker, A. Burrill, L. Cardman, J. Creel, Y.-C. Chao, G. Cheng, G. Ciovati, S. Chattopadhyay, J. Clark, W. A. Clemens, G. Croke, E. Daly, G. K. Davis, J. Delayen, S. U. De Silva, M. Diaz, R. Dickson, L. Doolittle, D. Douglas, M. Drury, E. Feldl, J. Fischer, A. Freyberger, V. Ganni, R. L. Geng, C. Ginsburg, J. Gomez, J. Grames, J. Gubeli, J. Guo, F. Hannon, J. Hansknecht, L. Harwood, J. Henry, C. Hernandez-Garcia, T. Hiatt, D. Higinbotham, S. Higgins, A. S. Hofler, J. Hogan, C. Hovater, A. Hutton, C. Jones, K. Jordan, M. Joyce, R. Kazimi, M. Keesee, M. J. Kelley, C. Keppel, A. Kimber, L. King, P. Kjeldsen, P. Kneisel, J. Kowal, G. A. Krafft, G. Lahti, T. Larrieu, R. Lauze, C. Leemann, R. Legg, R. Li, F. Lin, D. Machie, J. Mammosser, K. Macha, K. Mahoney, F. Marhauser, B. Mastracci, J. Matalevich, J. McCarter, M. McCaughan, L. Merminga, R. Michaud, V. Morozov, C. Mounts, J. Musson, R. Nelson, W. Oren, R. B. Overton, G. Palacios-Serrano, H.-K. Park, L. Phillips, S. Philip, F. Pilat, T. Plawski, M. Poelker, P. Powers, T. Powers, J. Preble, T. Reilly, R. Rimmer, C. Reece, H. Robertson, Y. Roblin, C. Rode, T. Satogata, D. J. Seidman, A. Seryi, A. Shabalina, I. Shin, C. Slominski, R. Slominski, M. Spata, D. Spell, J. Spradlin, M. Stirbet, M. L. Stutzman, S. Suhring, K. Surles-Law, R. Suleiman, C. Tennant, H. Tian, D. Turner, M. Tiefenback, O. Trofimova, A.-M. Valente, H. Wang, Y. Wang, K. White, C. Whitlatch, T. Whitlatch, M. Wiseman, M. J. Wissman, G. Wu, S. Yang, B. Yunn, S. Zhang, Y. Zhang
Publikováno v:
Physical Review Accelerators and Beams, Vol 27, Iss 8, p 084802 (2024)
This review paper describes the energy-upgraded Continuous Electron Beam Accelerator Facility (CEBAF) accelerator. This superconducting linac has achieved 12 GeV beam energy by adding 11 new high-performance cryomodules containing 88 superconducting
Externí odkaz:
https://doaj.org/article/18535cc4069449a8acd9f8e55e6964ca
Publikováno v:
Journal of Magnesium and Alloys, Vol 11, Iss 9, Pp 3200-3213 (2023)
The origin of unique parallel alignment of (0001) poles to transverse direction (TD) was investigated using Mg-3Al-0.4Mn (mass%) alloy sheets rolled with different process conditions. When rolling was performed with intermediate reheating, the alloy
Externí odkaz:
https://doaj.org/article/0f5ace30b10049f0b9fc673eeac34f82
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 13407-13422 (2022)
Column ozone variability has important implications for surface photochemistry and the climate. Ice-core nitrate isotopes are suspected to be influenced by column ozone variability and δ15N(NO3-) has been sought to serve as a proxy of column ozone v
Externí odkaz:
https://doaj.org/article/e0d171d3bf6b4ff4b314db7246d8024c
Publikováno v:
Geoscientific Model Development, Vol 15, Pp 6143-6164 (2022)
Aerosol pH is a fundamental property of aerosols in terms of atmospheric chemistry and its impact on air quality, climate, and health. Precise estimation of aerosol pH in chemical transport models (CTMs) is critical for aerosol modeling and thus infl
Externí odkaz:
https://doaj.org/article/05ecab31a65e42fb98ea65d69f2798e2
Publikováno v:
The Cryosphere, Vol 16, Pp 2709-2724 (2022)
The effect of post-depositional processing on the preservation of snow nitrate isotopes at Summit, Greenland, remains a subject of debate and is relevant to the quantitative interpretation of ice-core nitrate (isotopic) records at high snow accumulat
Externí odkaz:
https://doaj.org/article/36ff80d0eb184466af2555c3e18925b6
Autor:
J. Zuo, T. Nakata, C. Xu, Y.P. Xia, H.L. Shi, G.S. Wang, G.Z. Tang, G.H. Fan, S. Kamado, L. Geng
Publikováno v:
Journal of Materials Research and Technology, Vol 18, Iss , Pp 1754-1762 (2022)
Microstructure evolution and mechanical properties of the as-drawn dilute Mg-0.8Al-0.1Ca-0.6Mn (wt. %) alloy wires during annealing and peak-aging treatment were investigated in this paper. The results show that the high density of nano-sized Al–Mn
Externí odkaz:
https://doaj.org/article/856c0944fb8244be8ce3b12710497209
Underestimated Passive Volcanic Sulfur Degassing Implies Overestimated Anthropogenic Aerosol Forcing
Autor:
U. A. Jongebloed, A. J. Schauer, J. Cole‐Dai, C. G. Larrick, R. Wood, T. P. Fischer, S. A. Carn, S. Salimi, S. R. Edouard, S. Zhai, L. Geng, B. Alexander
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 1, Pp n/a-n/a (2023)
Abstract The Arctic is warming at almost four times the global rate. An estimated sixty percent of greenhouse‐gas‐induced Arctic warming has been offset by anthropogenic aerosols, but the contribution of aerosols to radiative forcing (RF) represe
Externí odkaz:
https://doaj.org/article/20b4a959a3c64f20afbb285039fe5558
Publikováno v:
The Cryosphere, Vol 15, Pp 4207-4220 (2021)
Atmospheric information embedded in ice-core nitrate is disturbed by post-depositional processing. Here we used a layered snow photochemical column model to explicitly investigate the effects of post-depositional processing on snow nitrate and its is
Externí odkaz:
https://doaj.org/article/df85b7b45e05429db4ebf8fea9e360a3