Výsledky vyhledávání - "G. J. Michaelson"

Akademický článek

Autor: C. L. Ping, J. D. Jastrow, M. T. Jorgenson, G. J. Michaelson, Y. L. Shur

Publikováno v: SOIL, Vol 1, Iss 1, Pp 147-171 (2015)

Knowledge of soils in the permafrost region has advanced immensely in recent decades, despite the remoteness and inaccessibility of most of the region and the sampling limitations posed by the severe environment. These efforts significantly increased

Externí odkaz: https://doaj.org/article/ee75a9d5ad9b44e1a7370b18e830d3c5

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Akademický článek

Estimated stocks of circumpolar permafrost carbon with quantified uncertainty ranges and identified data gaps

Autor: G. Hugelius, J. Strauss, S. Zubrzycki, J. W. Harden, E. A. G. Schuur, C.-L. Ping, L. Schirrmeister, G. Grosse, G. J. Michaelson, C. D. Koven, J. A. O'Donnell, B. Elberling, U. Mishra, P. Camill, Z. Yu, J. Palmtag, P. Kuhry

Publikováno v: Biogeosciences, Vol 11, Iss 23, Pp 6573-6593 (2014)

Soils and other unconsolidated deposits in the northern circumpolar permafrost region store large amounts of soil organic carbon (SOC). This SOC is potentially vulnerable to remobilization following soil warming and permafrost thaw, but SOC stock est

Externí odkaz: https://doaj.org/article/6e79a164df5b43259ac6da9f81034661

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Akademický článek

Empirical estimates to reduce modeling uncertainties of soil organic carbon in permafrost regions: a review of recent progress and remaining challenges

Autor: U Mishra, J D Jastrow, R Matamala, G Hugelius, C D Koven, J W Harden, C L Ping, G J Michaelson, Z Fan, R M Miller, A D McGuire, C Tarnocai, P Kuhry, W J Riley, K Schaefer, E A G Schuur, M T Jorgenson, L D Hinzman

Publikováno v: Environmental Research Letters, Vol 8, Iss 3, p 035020 (2013)

The vast amount of organic carbon (OC) stored in soils of the northern circumpolar permafrost region is a potentially vulnerable component of the global carbon cycle. However, estimates of the quantity, decomposability, and combustibility of OC conta

Externí odkaz: https://doaj.org/article/c2533a7eacd44aba9c59b93731c980da

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Characterizing soil organic matter in Arctic tundra soils by different analytical approaches

Autor: X.Y Dai, C.L Ping, G. J. Michaelson

Publikováno v: Organic Geochemistry. 33:407-419

Soil organic matter (SOM) of five soil horizons from Arctic tundra and one soil horizon from a temperate region was separated into an extractable fraction (EF) and a non-extractable fraction (NEF) by dilute alkali. The modified classical fractionatio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8bda8e8c8b05a995444cacf5330eef11
https://doi.org/10.1016/s0146-6380(02)00012-8

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Supplementary material to 'Improved estimates show large circumpolar stocks of permafrost carbon while quantifying substantial uncertainty ranges and identifying remaining data gaps'

Autor: G. Hugelius, J. Strauss, S. Zubrzycki, J. W. Harden, E. A. G. Schuur, C. L. Ping, L. Schirrmeister, G. Grosse, G. J. Michaelson, C. D. Koven, J. A. O'Donnell, B. Elberling, U. Mishra, P. Camill, Z. Yu, J. Palmtag, P. Kuhry

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f9b672a9323431f5d43f027744370f79
https://doi.org/10.5194/bgd-11-4771-2014-supplement

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Organic Matter and Bioactivity in Cryosols of Arctic Alaska

Autor: X. Y. Dai, C.-L. Ping, G. J. Michaelson

Publikováno v: Cryosols ISBN: 9783642058561

Soils of northern regions contain about 26% of the terrestrial C-stocks; the Arctic and boreal zones each hold about 12 to 13% (Post et al., 1982). Under the climatic conditions of the recent geological past, these regions have served as a sink for a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::09046a45feed5c93ff44a74586ad05bd
https://doi.org/10.1007/978-3-662-06429-0_23

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Prototyping Parallel Algorithms using Standard ML

Autor: G. J. Michaelson, Andrew M. Wallace, Norman Scaife

Publikováno v: BMVC

We have been developing techniques for deriving parallel implementations of vision algorithms from prototypes written in a functional language (SML). Initially, we analysed simple, well understood algorithms to allow the prototyping methodology to be

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7dc30e4dc9f26b071567eedae910703f
https://doi.org/10.5244/c.9.67

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Carbon Storage and Distribution in Tundra Soils of Arctic Alaska, U.S.A

Autor: G. J. Michaelson, J. M. Kimble, Chien-Lu Ping

Publikováno v: Arctic and Alpine Research. 28:414

Tundra soil carbon stores ranged from a low of 16 kg C m-3 for a northern foothills ridge top site to a high of 94 kg C m-3 for a Barrow coastal plain tundra. Relatively low carbon stores were found in riparian shrubland, barren mountain slope, and a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9a0d4d9c782dd1dbb41377cbbced09a7
https://doi.org/10.2307/1551852

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