Search Results - "Johnson, Jesse V"

A rapidly retreating, marine-terminating glacier's modeled response to perturbations in basal traction by Downs, Jacob, Johnson, Jesse V.

“…Upernavik Isstrøm, a marine glacier undergoing rapid retreat, is simulated by forcing a numerical model with ocean-driven melt. A review of processes driving…”
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Melting at the base of the Greenland ice sheet explained by Iceland hotspot history by Rogozhina, Irina, Petrunin, Alexey G., Vaughan, Alan P. M., Steinberger, Bernhard, Johnson, Jesse V., Kaban, Mikhail K., Calov, Reinhard, Rickers, Florian, Thomas, Maik, Koulakov, Ivan

“…Basal melting is widespread in the north-central Greenland ice sheet. Geophysical data and numerical modelling suggest a geothermal anomaly in this region…”
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Millennial-scale migration of the frozen/melted basal boundary, western Greenland ice sheet by Stansberry, Aidan, Harper, Joel, Johnson, Jesse V., Meierbachtol, Toby

“…The geometry and thermal structure of western Greenland ice sheet are known to have undergone relatively substantial change over the Holocene. Evolution of the…”
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Mid-Miocene cooling and the extinction of tundra in continental Antarctica by Lewis, Adam R, Marchant, David R, Ashworth, Allan C, Hedenäs, Lars, Hemming, Sidney R, Johnson, Jesse V, Leng, Melanie J, Machlus, Malka L, Newton, Angela E, Raine, J Ian, Willenbring, Jane K, Williams, Mark, Wolfe, Alexander P

“…A major obstacle in understanding the evolution of Cenozoic climate has been the lack of well dated terrestrial evidence from high-latitude, glaciated regions…”
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Application of LiDAR Derived Fuel Cells to Wildfire Modeling at Laboratory Scale by Marcozzi, Anthony A., Johnson, Jesse V., Parsons, Russell A., Flanary, Sarah J., Seielstad, Carl A., Downs, Jacob Z.

“…Terrestrial LiDAR scans (TLS) offer a rich data source for high-fidelity vegetation characterization, addressing the limitations of traditional fuel sampling…”
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Extensive phylogenetic analysis of a soil bacterial community illustrates extreme taxon evenness and the effects of amplicon length, degree of coverage, and DNA fractionation on classification and ecological parameters by Morales, Sergio E, Cosart, Theodore F, Johnson, Jesse V, Holben, William E

“…To thoroughly investigate the bacterial community diversity present in a single composite sample from an agricultural soil and to examine potential biases…”
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Wildfires have created instability within risk transfer markets. Here's a path forward by Thompson, Matthew P, Calkin, David E, MacGregor, Donald M, Young, Bryce A, Barrett, Kimiko, Fischer, Erica C, Johnson, Jesse V

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Rate of mass loss from the Greenland Ice Sheet will exceed Holocene values this century by Briner, Jason P., Cuzzone, Joshua K., Badgeley, Jessica A., Young, Nicolás E., Steig, Eric J., Morlighem, Mathieu, Schlegel, Nicole-Jeanne, Hakim, Gregory J., Schaefer, Joerg M., Johnson, Jesse V., Lesnek, Alia J., Thomas, Elizabeth K., Allan, Estelle, Bennike, Ole, Cluett, Allison A., Csatho, Beata, de Vernal, Anne, Downs, Jacob, Larour, Eric, Nowicki, Sophie

“…The Greenland Ice Sheet (GIS) is losing mass at a high rate 1 . Given the short-term nature of the observational record, it is difficult to assess the…”
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Widespread Moulin Formation During Supraglacial Lake Drainages in Greenland by Hoffman, Matthew J., Perego, Mauro, Andrews, Lauren C., Price, Stephen F., Neumann, Thomas A., Johnson, Jesse V., Catania, Ginny, Lüthi, Martin P.

“…Moulins permit access of surface meltwater to the glacier bed, causing basal lubrication and ice speedup in the ablation zone of western Greenland during…”
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Atmospheric scaling of cosmogenic nuclide production: Climate effect by Staiger, Jane, Gosse, John, Toracinta, Rick, Oglesby, Bob, Fastook, James, Johnson, Jesse V.

“…Absorption of cosmic rays by atmospheric mass varies temporally due to a redistribution of atmospheric pressure by ice sheets during glaciations, the…”
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Comparing Greenland Ice Sheet Melt Variability From Different Satellite Passive Microwave Remote Sensing Products Over a Common 5-year Record by Kimball, John S., Du, Jinyang, Meierbachtol, Toby W., Kim, Youngwook, Johnson, Jesse V.

“…Satellite microwave brightness temperature (Tb) observations over the Greenland Ice Sheet permit determination of melted/frozen snow conditions at spatial and…”
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Dynamic Hydraulic Conductivity Reconciles Mismatch Between Modeled and Observed Winter Subglacial Water Pressure by Downs, Jacob Z., Johnson, Jesse V., Harper, Joel T., Meierbachtol, Toby, Werder, Mauro A.

“…The link between subglacial hydrology and basal sliding has prompted work on basal hydrology models with water pressure and drainage capacity as prognostic…”
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Processes influencing heat transfer in the near-surface ice of Greenland's ablation zone by Hills, Benjamin H., Harper, Joel T., Meierbachtol, Toby W., Johnson, Jesse V., Humphrey, Neil F., Wright, Patrick J.

“…To assess the influence of various heat transfer processes on the thermal structure of near-surface ice in Greenland's ablation zone, we compare in situ…”
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Ice dynamics preceding catastrophic disintegration of the floating part of Jakobshavn Isbræ, Greenland by Johnson, Jesse V., Prescott, Paul R., Hughes, Terence J.

“…The floating terminal of Jakobshavn Isbræ, the fastest Greenland ice stream, has disintegrated since 2002, resulting in a doubling of ice velocity and rapidly…”
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Closed solutions to a differential-difference equation and an associated plate solidification problem by Layeni, Olawanle P., Akinola, Adegbola P., Johnson, Jesse V.

“…Two distinct and novel formalisms for deriving exact closed solutions of a class of variable-coefficient differential-difference equations arising from a plate…”
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Results from the Ice-Sheet Model Intercomparison Project–Heinrich Event Intercomparison (ISMIP HEINO) by Calov, Reinhard, Greve, Ralf, Abe-Ouchi, Ayako, Bueler, Ed, Huybrechts, Philippe, Johnson, Jesse V., Pattyn, Frank, Pollard, David, Ritz, Catherine, Saito, Fuyuki, Tarasov, Lev

“…Results from the Heinrich Event Intercomparison (HEINO) topic of the Ice-Sheet Model Intercomparison Project (ISMIP) are presented. ISMIP HEINO was designed to…”
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Thermal boundary conditions on western Greenland: Observational constraints and impacts on the modeled thermomechanical state by Meierbachtol, Toby W., Harper, Joel T., Johnson, Jesse V., Humphrey, Neil F., Brinkerhoff, Douglas J.

“…The surface and basal boundary conditions exert an important control on the thermodynamic state of the Greenland Ice Sheet, but their representation in…”
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Modeling 5 years of subglacial lake activity in the MacAyeal Ice Stream (Antarctica) catchment through assimilation of ICESat laser altimetry by Carter, Sasha P., Fricker, Helen A., Blankenship, Donald D., Johnson, Jesse V., Lipscomb, William H., Price, Stephen F., Young, Duncan A.

“…Subglacial lakes beneath Antarctica’s fast-moving ice streams are known to undergo ∼1 km3 volume changes on annual timescales. Focusing on the MacAyeal Ice…”
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Quaternary relief generation by polythermal glacier ice by Staiger, Jane K. W., Gosse, John C., Johnson, Jesse V., Fastook, James, Gray, James T., Stockli, Daniel F., Stockli, Lisa, Finkel, Robert

“…The juxtaposition of wet‐based erosive ice in valleys and cold‐based, non‐erosive ice atop felsenmeer‐covered interfluve plateaus has generated relief in the…”
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Sensitivity of the frozen/melted basal boundary to perturbations of basal traction and geothermal heat flux: Isunnguata Sermia, western Greenland by Brinkerhoff, Douglas J., Meierbachtol, Toby W., Johnson, Jesse V., Harper, Joel T.

“…A full-stress, thermomechanically coupled, numerical model is used to explore the interaction between basal thermal conditions and motion of a terrestrially…”
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