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Investigation of ice-wedge infilling processes using stable oxygen and hydrogen isotopes, crystallography and occluded gases (O2, N2, Ar)
  • Investigation of ice-wedge infilling processes using stable oxygen and hydrogen isotopes, crystallography and occluded gases (O2, N2, Ar)
  • of techniques are used, including ice crystallography, the determination of andO 18 (ice) and andD (ice), the molar ratios of occluded gases (and(O2/Ar) and and(N2/Ar)), and the stable isotope composition of O2 (andO 18) and N2 (andN 15) gases. The results
  • indicate that climatic and site-specific conditions may influence the source of infilling during ice-wedge growth, so that wedge ice in wet and dry environments exhibits different characteristics. In both ice-wedge types, the δ(O2/Ar) values are much lower
  • 2011
Sedimentation source identification in a semiarid watershed at soil mapping unit scales
  • 2011
  • [b1] USDA-ARS National Sedimentation Lab., MS, Oxford, Etats-Unis
  • [b2] USDA-ARS Southwest Watershed Research Center, AZ, Tucson, Etats-Unis
  • [b3] USDA-ARS, Hydrology and Remote Sensing Lab., Beltsville, Etats-Unis
Variability in erosion rates related to the state of landscape transience in the semi-arid Chilean Andes
  • The AA. quantify erosion rates in the higher sectors of the Huasco Valley using elevation differences between 3 successive geomorphic markers (pediments and paleo-valleys) and the present day valley. Available Ar-Ar ages of Neogene pediments
  • 2011
Migrations internationales au prisme des rapports familiaux. Les familles sénégalaises à l'épreuve des refoulements des îles Canaries
  • 2011
  • [b1] Univ. de Bretagne Occidentale (ARS), Brest, France
Changements morphologiques et budget sédimentaire des formes fuyantes en queue de comète de l'archipel de Molène (Bretagne, France)
  • A partir des résultats d'un suivi morphosédimentaire des formes fuyantes en queue de comète, réalisé entre 2002 et 2009, sur les 2 îlots de Trielen et de Lez ar Chrizienn dans l'archipel de Molène, les AA. ont pour objectif : 1) de savoir si la
  • 2011
Headcut retreat in a semiarid watershed in the southwestern United States since 1935
  • 2011
  • [b2] USDA-ARS Southwest Watershed Research Center, AZ, Tucson, Etats-Unis
Performance of a distributed semi-conceptual hydrological model under tropical watershed conditions
  • 2011
  • [b4] Agronomy and Agricultural and Biological Engineering, USDA-ARS National Soil Erosion Research Lab., Purdue Univ., West Lafayette, Etats-Unis
Impacts of conservation buffers and grasslands on total phosphorous loads using hydrological modeling and remote sensing techniques
  • 2011
  • [b2] National Soil Erosion Research Lab., USDA-ARS, West Lafayette, Etats-Unis
Environmental impact of introducing plant covers in the taluses of terraces : implications for mitigating agricultural soil erosion and runoff
  • 2011
  • [b4] USDA-ARS National Soil Erosion Research Lab., Purdue Univ., West Lafayette, Etats-Unis
A spatially explicit degree-day model of Rift Valley fever transmission risk in the continental United States
  • 2011
  • [b2] USDA-ARS-ABADRL, Laramie, Etats-Unis
Paleoclimatological evidence for unprecedented recent temperature rise at the extratropical part of the northern hemisphere
  • Eight, millennial-scale proxy reconstructions of temperature of the Northern Hemisphere were compared to instrumentally measured temperatures. The effect of anomalous reduction in sensitivity (ARS) over the last decades (divergence) in the tree-ring
  • 2011