Results 51 to 60 of about 2,982 (205)

Constructed crevasses and land gain in the Mississippi River delta

, 1997
Extensive land loss, which is mostly wetland loss, has taken place during this century in the Mississippi River delta and other river deltas. Our purpose was to evaluate the effectiveness of constructing artificial crevasses, or cuts in the natural ...
Turner, R. Eugene, Boyer, Mark E., Harris, James O.   +2 more
core   +1 more source

Activation of Existing Surface Crevasses Has Limited Impact on Grounding Line Flux of Antarctic Ice Streams

, 2023
Recent studies have identified widespread vulnerable ice shelf regions in Antarctica which are both highly buttressed and susceptible to crevasse hydrofracturing, raising concern for potential crevasse driven ice‐shelf collapse and future sea level rise.
S. Rosier, C. Gerli, G. H. Gudmundsson
core   +1 more source

Ruins in the Field: Materiality, Spectres and Pluritemporal Encounters of the Oxford University Arctic Expedition

Transactions of the Institute of British Geographers, Volume 51, Issue 4, December 2026.
Short Abstract This paper contributes to conceptual debates on ruins by generating novel insights into how encounters with the haunted materialities of ruins in the field inform (post)colonial trajectories of exploration. Empirically, it examines how material and spectral traces of past lives in the field, alongside play with categories of absence and ...
Johanne M. Bruun
wiley   +1 more source

Moment Tensor Inversion Reveals Diverse Mechanisms for Icequakes in Ross Ice Shelf Rift WR4

Geophysical Research Letters, Volume 53, Issue 21, 16 November 2026.
Abstract Prior studies have cataloged thousands of icequakes at Ross Ice Shelf (RIS) Western Rift 4 (WR4) and linked them to tidal cycles, thermal stress, and temperature fluctuations. Building on this foundation, we apply a full moment tensor inversion using Green's functions for a layered firn, ice, water and sediment model.
Farzaneh Aziz Zanjani, Douglas A. Wiens, Michael E. Wysession, Dougal D. Hansen, Richard C. Aster, A. A. Nyblade   +5 more
wiley   +1 more source

Acoustic‐Seismic Coupling Signals From Aircraft Reveal Firn‐Ice Transition and Near‐Surface Elastic Structure of Antarctic Ice

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Predicting the response of Antarctic ice to climate change requires detailed knowledge of its shallow structure, but direct measurements are challenging. Traditional seismic surveys are logistically demanding, and surface remote sensing provides limited information about subsurface layers.
Yibo Wang, Tao Wang, Yikang Zheng, Kai Lu, Yi Yao, Junhao Hu   +5 more
wiley   +1 more source

Re‐evaluation of a soft crested Edmontosaurin, with implications for hadrosaurid life appearance and diversity

The Anatomical Record, Volume 309, Issue 10, Page 2636-2655, October 2026.
Abstract Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest (or comb), based on an exceptionally preserved “mummified” specimen. Here we redescribe this specimen and
Henry S. Sharpe, Phil R. Bell, Ian Baylatry, Robin Sissons, Corwin Sullivan   +4 more
wiley   +1 more source

Evidence for Submarine Landslides at Climate Transitions in a High Arctic Fjord (Grise Fiord, Nunavut)

Earth Surface Processes and Landforms, Volume 51, Issue 10, October 2026.
Seafloor mapping in a high Arctic fjord (Grise Fiord) revealed many submarine landslides triggered by iceberg groundings, coastal debris flows and delta collapses. The dating of three of them suggests that they occurred at past climate transitions. ABSTRACT Arctic fjords are experiencing rapid environmental change driven by amplified high‐latitude ...
C. Stancu, A. Normandeau, J. B. R. Eamer, A. Limoges, A. Heras Duran, N. Kiguktak, S. Pijamini, T. Noah, L. Watsko, M. Bhatia, E. M. Bertrand, D. Didier   +11 more
wiley   +1 more source

Global River Sediment Retention on Delta Plains

AGU Advances, Volume 7, Issue 7, October 2026.
Abstract Fluvial sediments have helped form approximately 830,000 km2 of coastal deltaic land, a large part of which since the Holocene slowdown of global sea‐level rise. The rate at which deltas have retained fluvial sediment to build deltaic land, however, has varied greatly between different deltas. Sources of variability as well as global estimates
J. H. Nienhuis, J. F. Paniagua‐Arroyave, F. E. Dunn, S. Cohen, T. E. Törnqvist   +4 more
wiley   +1 more source

3D Architecture of Kodiak Butte as Evidence of Fluvial or Shoal‐Water Environments in Jezero Crater, Mars

Journal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract The Mars 2020 mission has explored depositional environments recorded in a fan‐shaped deposit on the western side of Jezero crater. Kodiak butte is an isolated outcrop of sedimentary rock ∼1 km south of the western fan scarp and may be an erosional remnant of said fan.
O. A. Kanine, M. P. Lamb, B. L. Ehlmann, J. P. Grotzinger, C. D. Tate   +4 more
wiley   +1 more source

Pan-Greenland mapping of supraglacial rivers, lakes, and water-filled crevasses in a cool summer (2018) and a warm summer (2019)

, 2023
Maps reported in the manuscript "Pan-Greenland mapping of supraglacial rivers, lakes, and water-filled crevasses in a cool summer (2018) and a warm summer (2019)"
Wensong Zhang (14428032), Laurence C. Smith (12257660), Yuhan Wang (16713866), Jinyu Liu (16717505), Kang Yang (7323734), Dirk van As (8024588), Brice Noël (16717457), Yao Lu (16717504)   +7 more
core   +1 more source