Výsledky vyhledávání

Akademický článek

Supraglacial streamflow and meteorological drivers from southwest Greenland

Autor: R. Muthyala, Å. K. Rennermalm, S. Z. Leidman, M. G. Cooper, S. W. Cooley, L. C. Smith, D. van As

Publikováno v: The Cryosphere, Vol 16, Pp 2245-2263 (2022)

Greenland ice sheet surface runoff is drained through supraglacial stream networks. This evacuation influences surface mass balance as well as ice dynamics. However, in situ observations of meltwater discharge through these stream networks are rare.

Externí odkaz: https://doaj.org/article/c0d4210fad164fcd9f9d3d396633f1c0

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Akademický článek

Hourly surface meltwater routing for a Greenlandic supraglacial catchment across hillslopes and through a dense topological channel network

Autor: C. J. Gleason, K. Yang, D. Feng, L. C. Smith, K. Liu, L. H. Pitcher, V. W. Chu, M. G. Cooper, B. T. Overstreet, A. K. Rennermalm, J. C. Ryan

Publikováno v: The Cryosphere, Vol 15, Pp 2315-2331 (2021)

Recent work has identified complex perennial supraglacial stream and river networks in areas of the Greenland Ice Sheet (GrIS) ablation zone. Current surface mass balance (SMB) models appear to overestimate meltwater runoff in these networks compared

Externí odkaz: https://doaj.org/article/d3cb367e6ef646bead8e08b72d564dae

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Akademický článek

Spectral attenuation coefficients from measurements of light transmission in bare ice on the Greenland Ice Sheet

Autor: M. G. Cooper, L. C. Smith, A. K. Rennermalm, M. Tedesco, R. Muthyala, S. Z. Leidman, S. E. Moustafa, J. V. Fayne

Publikováno v: The Cryosphere, Vol 15, Pp 1931-1953 (2021)

Light transmission into bare glacial ice affects surface energy balance, biophotochemistry, and light detection and ranging (lidar) laser elevation measurements but has not previously been reported for the Greenland Ice Sheet. We present measurements

Externí odkaz: https://doaj.org/article/7140e43160584fd7ac2b6e5c952db26e

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Akademický článek

A new surface meltwater routing model for use on the Greenland Ice Sheet surface

Autor: K. Yang, L. C. Smith, L. Karlstrom, M. G. Cooper, M. Tedesco, D. van As, X. Cheng, Z. Chen, M. Li

Publikováno v: The Cryosphere, Vol 12, Pp 3791-3811 (2018)

Large volumes of surface meltwater are routed through supraglacial internally drained catchments (IDCs) on the Greenland Ice Sheet surface each summer. Because surface routing impacts the timing and discharge of meltwater entering the ice sheet throu

Externí odkaz: https://doaj.org/article/9d1257ac3349440b8d0a8adcc1223746

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Akademický článek

Meltwater storage in low-density near-surface bare ice in the Greenland ice sheet ablation zone

Autor: M. G. Cooper, L. C. Smith, A. K. Rennermalm, C. Miège, L. H. Pitcher, J. C. Ryan, K. Yang, S. W. Cooley

Publikováno v: The Cryosphere, Vol 12, Pp 955-970 (2018)

We document the density and hydrologic properties of bare, ablating ice in a mid-elevation (1215 m a.s.l.) supraglacial internally drained catchment in the Kangerlussuaq sector of the western Greenland ice sheet. We find low-density (0.43–0.91 g

Externí odkaz: https://doaj.org/article/6644dfc240bf4b8ba4b45789e6b4a0e4

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