Zobrazeno 1 - 10 of 42 pro vyhledávání: '"R A, Dahlgren"'
1
Akademický článek
Above-cloud aerosol optical depth from airborne observations in the southeast Atlantic
Autor: S. E. LeBlanc, J. Redemann, C. Flynn, K. Pistone, M. Kacenelenbogen, M. Segal-Rosenheimer, Y. Shinozuka, S. Dunagan, R. P. Dahlgren, K. Meyer, J. Podolske, S. G. Howell, S. Freitag, J. Small-Griswold, B. Holben, M. Diamond, R. Wood, P. Formenti, S. Piketh, G. Maggs-Kölling, M. Gerber, A. Namwoonde
Publikováno v: Atmospheric Chemistry and Physics, Vol 20, Pp 1565-1590 (2020)
The southeast Atlantic (SEA) region is host to a climatologically significant biomass burning aerosol layer overlying marine stratocumulus. We present the first results of the directly measured above-cloud aerosol optical depth (ACAOD) from the recen
Externí odkaz: https://doaj.org/article/744632ebad8148e08aba60b5c9b4ba10
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2
Akademický článek
Technical Note: Reactivity of C1 and C2 organohalogens formation – from plant litter to bacteria
Autor: J. J. Wang, T. W. Ng, Q. Zhang, X. B. Yang, R. A. Dahlgren, A. T. Chow, P. K. Wong
Publikováno v: Biogeosciences, Vol 9, Iss 10, Pp 3721-3727 (2012)
C1/C2 organohalogens (organohalogens with one or two carbon atoms) can have significant environmental toxicity and ecological impact, such as carcinogenesis, ozone depletion and global warming. Natural halogenation processes have been identified for
Externí odkaz: https://doaj.org/article/787666bd6d1e41af900d4e3b887d0c68
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3
Akademický článek
Soil carbon cycling and sequestration in a seasonally saturated wetland receiving agricultural runoff
Autor: J. J. Maynard, R. A. Dahlgren, A. T. O'Geen
Publikováno v: Biogeosciences, Vol 8, Iss 11, Pp 3391-3406 (2011)
The fate of organic carbon (C) lost by erosion is not well understood in agricultural settings. Recent models suggest that wetlands and other small water bodies may serve as important long-term sinks of eroded C, receiving ~30 % of all eroded materia
Externí odkaz: https://doaj.org/article/e1b6e84bcdd94e0daedb9ab7f365ed91
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4
Terrain attributes and forage productivity predict catchment-scale soil organic carbon stocks
Autor: R. A. Dahlgren, Yufang Jin, Anthony T. O'Geen, Helen E. Dahlke, Royce E. Larsen, Han Liu, Scott M. Devine
Accurate assessments of soil organic carbon (SOC) stocks are needed at multiple scales given their importance to both local soil health and global C cycles. Rangelands cover 54% of California, representing a large stock of SOC, but existing SOC estim
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d43d83f69737630dc4151fcd6a419175
https://escholarship.org/uc/item/9wr7k2j9
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5
Microclimate–forage growth linkages across two strongly contrasting precipitation years in a Mediterranean catchment
Autor: Han Liu, Royce E. Larsen, Yufang Jin, Helen E. Dahlke, Scott M. Devine, R. A. Dahlgren, Anthony T. O'Geen
Publikováno v: Ecohydrology, vol 12, iss 8
Author(s): Devine, SM; O'Geen, AT; Larsen, RE; Dahlke, HE; Liu, H; Jin, Y; Dahlgren, RA | Abstract: Given the complex topography of California rangelands, contrasting microclimates affect forage growth at catchment scales. However, documentation of m
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b6ad0d1016a13e2d03965b43577b738
https://escholarship.org/uc/item/11z6d2mk
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6
Capturing spatial variability of biogeochemical mass exchanges and reaction rates in wetland water and soil through model compartmentalization
Autor: A, Sharifi, L, Kalin, A M, Asce, M M, Hantush, R A, Dahlgren, A T, O'Geen, J J, Maynard
Publikováno v: Sharifi, A; Kalin, L; Hantush, MM; Dahlgren, RA; O'Geen, AT; & Maynard, JJ. (2017). Capturing spatial variability of biogeochemical mass exchanges and reaction rates in wetland water and soil through model compartmentalization. Journal of Hydrologic Engineering, 22(1). doi: 10.1061/(ASCE)HE.1943-5584.0001196. UC Davis: Retrieved from: http://www.escholarship.org/uc/item/8v33c20b
J Hydrol Eng
© 2015 American Society of Civil Engineers. A common phenomenon observed in natural and constructed wetlands is short-circuiting of flow and formation of stagnant zones that are only indirectly connected with the incoming water. Biogeochemistry of p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ecfb22348814f71cf572e2de2eb3c405
http://www.escholarship.org/uc/item/8v33c20b
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7
Estimating Rangeland Forage Production Using Remote Sensing Data from a Small Unmanned Aerial System (sUAS) and PlanetScope Satellite
Autor: Leslie M. Roche, Andy J. Y. Wong, Yufang Jin, Anthony T. O’ Geen, R. A. Dahlgren, Han Liu, Scott M. Devine, Sarah Covello, Royce E. Larsen
Publikováno v: Remote Sensing; Volume 11; Issue 5; Pages: 595
Remote Sensing, vol 11, iss 5
Remote Sensing, Vol 11, Iss 5, p 595 (2019)
Rangelands cover ~23 million hectares and support a $3.4 billion annual cattle industry in California. Large variations in forage production from year to year and across the landscape make grazing management difficult. We here developed optimized met
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d39b05eb642ff13a6bb402163370579a
https://doi.org/10.3390/rs11050595
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9
A new oxidant for hair coloring
Autor: Jennifer, Marsh, R Marc, Dahlgren, Colin, Clarke, Jonathan, Stonehouse, Chris, Nunn
Publikováno v: Journal of cosmetic science. 60(2)
Coloring hair using a level 3 permanent colorant involves two processes, lightening the underlying melanin and information of the colored chromophores inside the hair. In a typical in-market products the oxidant used to achieve these changes is hydro
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::bbf6013bffc42c3f811211ecf968bf91
https://pubmed.ncbi.nlm.nih.gov/19450421
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