Zobrazeno 1 - 10
of 49
pro vyhledávání: '"A. L. Atchley"'
Autor:
D. R. Harp, V. Zlotnik, C. J. Abolt, B. Busey, S. T. Avendaño, B. D. Newman, A. L. Atchley, E. Jafarov, C. J. Wilson, K. E. Bennett
Publikováno v:
The Cryosphere, Vol 15, Pp 4005-4029 (2021)
The pathways and timing of drainage from the inundated centers of ice-wedge polygons in a warming climate have important implications for carbon flushing, advective heat transport, and transitions from methane to carbon dioxide dominated emissions. H
Externí odkaz:
https://doaj.org/article/f6e24471d0504bfab2c28942f0f063b3
Autor:
E. E. Jafarov, D. R. Harp, E. T. Coon, B. Dafflon, A. P. Tran, A. L. Atchley, Y. Lin, C. J. Wilson
Publikováno v:
The Cryosphere, Vol 14, Pp 77-91 (2020)
Studies indicate greenhouse gas emissions following permafrost thaw will amplify current rates of atmospheric warming, a process referred to as the permafrost carbon feedback. However, large uncertainties exist regarding the timing and magnitude of t
Externí odkaz:
https://doaj.org/article/42fb65b5f30346ea8705f49588a0ba7a
Publikováno v:
The Cryosphere, Vol 13, Pp 237-245 (2019)
We present a workflow for the rapid delineation and microtopographic characterization of ice wedge polygons within high-resolution digital elevation models. At the core of the workflow is a convolutional neural network used to detect pixels represent
Externí odkaz:
https://doaj.org/article/b989ebc5f8114d9fb04ee30e276e6b59
Publikováno v:
The Cryosphere, Vol 12, Pp 1957-1968 (2018)
The goal of this research is to constrain the influence of ice wedge polygon microtopography on near-surface ground temperatures. Ice wedge polygon microtopography is prone to rapid deformation in a changing climate, and cracking in the ice wedge
Externí odkaz:
https://doaj.org/article/91a560640f3a45cdbb56461c72c29cd2
Autor:
D. R. Harp, A. L. Atchley, S. L. Painter, E. T. Coon, C. J. Wilson, V. E. Romanovsky, J. C. Rowland
Publikováno v:
The Cryosphere, Vol 10, Iss 1, Pp 341-358 (2016)
The effects of soil property uncertainties on permafrost thaw projections are studied using a three-phase subsurface thermal hydrology model and calibration-constrained uncertainty analysis. The null-space Monte Carlo method is used to identify soil
Externí odkaz:
https://doaj.org/article/c28c42b7b02d4480b2e20beba2716c06
Autor:
A. L. Atchley, S. L. Painter, D. R. Harp, E. T. Coon, C. J. Wilson, A. K. Liljedahl, V. E. Romanovsky
Publikováno v:
Geoscientific Model Development, Vol 8, Iss 9, Pp 2701-2722 (2015)
Climate change is profoundly transforming the carbon-rich Arctic tundra landscape, potentially moving it from a carbon sink to a carbon source by increasing the thickness of soil that thaws on a seasonal basis. However, the modeling capability and pr
Externí odkaz:
https://doaj.org/article/b595736be8f942e18604ee5422fcfe47
Autor:
Dylan R. Harp, Vitaly Zlotnik, Charles J. Abolt, Brent D. Newman, Adam L. Atchley, Elchin Jafarov, Cathy J. Wilson
The pathways and timing of drainage from inundated ice-wedge polygon centers in a warming climate have important implications for carbon flushing, advective heat transport, and transitions from carbon dioxide to methane dominated emissions. This rese
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ace8d604f7d72e35e6aec327e85b43e
https://tc.copernicus.org/preprints/tc-2020-351/
https://tc.copernicus.org/preprints/tc-2020-351/
Wildfires and prescribed burns have complex effects on vegetation and ecosystem function, ranging from minor injuries to tissue and organs to whole plant mortality and stand replacement. These effects are dependent on fire behavior characteristics an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e69f8cd4561e4886a7c465a779166606
https://doi.org/10.1016/b978-0-12-818813-2.00011-3
https://doi.org/10.1016/b978-0-12-818813-2.00011-3