Thomas A. Neumann

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Author ' s personal copy Paired bedrock and boulder 10 Be concentrations resulting from early Holocene ice retreat near Jakobshavn Isfjord , western Greenland

Lee B. Corbett, Nicolás E. Young, +4 authors Joseph A. Graly
2011

We measured in situ cosmogenic 10Be in 16 bedrock and 14 boulder samples collected along a 40-km transect outside of and normal to the modern ice margin near Sikuijuitsoq Fjord in central-west… (More)

Inference of accumulation-rate patterns from deep layers in glaciers and ice sheets

The spatial pattern of accumulation rate can be inferred from internal layers in glaciers and ice sheets. Non-dimensional analysis determines where finite strain can be neglected (‘shallow-layer… (More)

Direct observations of evolving subglacial drainage beneath the Greenland Ice Sheet

Lauren C. Andrews, G Catania, +5 authors Thomas A. Neumann
Nature
2014

Seasonal acceleration of the Greenland Ice Sheet is influenced by the dynamic response of the subglacial hydrologic system to variability in meltwater delivery to the bed via crevasses and moulins… (More)

Changes in black carbon deposition to Antarctica from two high-resolution ice core records , 1850 – 2000 AD

Marion M. Bisiaux, Ross Edwards, +7 authors Keith Taylor
2012

Refractory black carbon aerosols (rBC) emitted by biomass burning (fires) and fossil fuel combustion, affect global climate and atmospheric chemistry. In the Southern Hemisphere (SH), rBC is… (More)

Variability of black carbon deposition to the East Antarctic Plateau , 1800 – 2000

Ad, Marion M. Bisiaux, +6 authors Joyce e. Penner
2011

Refractory black carbon aerosols (rBC) from biomass burning and fossil fuel combustion are deposited to the Antarctic ice sheet and preserve a history of emissions and long-range transport from… (More)

Greenland ice sheet mass balance : distribution of increased mass loss with climate warming ; 2003 – 07 versus 1992 – 2002

H. Jay Zwally, Li Jun, +9 authors W Wang
2011

We derive mass changes of the Greenland ice sheet (GIS) for 2003–07 from ICESat laser altimetry and compare them with results for 1992–2002 from ERS radar and airborne laser altimetry. The GIS… (More)

Algorithm for Detection of Ground and Canopy Cover in Micropulse Photon-Counting Lidar Altimeter Data in Preparation for the ICESat-2 Mission

Ute C. Herzfeld, Brian W. McDonald, +4 authors Christopher Field
IEEE Transactions on Geoscience and Remote…
2014

NASA's Ice, Cloud and Land Elevation Satellite-II (ICESat-2) mission is a decadal survey mission (2016 launch). The mission objectives are to measure land ice elevation, sea ice freeboard, and… (More)

Determination of Local Slope on the Greenland Ice Sheet Using a Multibeam Photon-Counting Lidar in Preparation for the ICESat-2 Mission

Kelly M. Brunt, Thomas A. Neumann, Kaitlin M. Walsh, Thorsten Markus
IEEE Geoscience and Remote Sensing Letters
2014

The greatest changes in elevation in Greenland and Antarctica are happening along the margins of the ice sheets where the surface frequently has significant slopes. For this reason, the upcoming Ice,… (More)

Recent climate and icesheet changes in West Antarctica compared with the past 2 , 000 years

Eric J Steig, Qinghua Ding, +19 authors Elena Korotkikh
2013

Eric J. Steig*, Qinghua Ding1, JamesW. C. White2, Marcel Küttel1, Summer B. Rupper3, Thomas A. Neumann4, Peter D. Neff1†, Ailie J. E. Gallant1†, Paul A. Mayewski5, Kendrick C. Taylor6, Georg… (More)

Seasonal acceleration of inland ice via longitudinal coupling to marginal ice

We use an ice-flow model to demonstrate how flow variations initiated in the marginal zone of an ice sheet affect flow farther inland through longitudinal (along-flow) coupling. Our findings allow… (More)

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