Results 61 to 70 of about 2,447 (215)

Significant Coastal Dune Loss Challenges California's Climate Resilience and Biodiversity Goals

Earth's Future, Volume 14, Issue 6, June 2026.
Abstract Coastal sand dunes support unique biodiversity and buffer beaches and communities against storm impacts. However, these sensitive and dynamic ecosystems are increasingly threatened by erosion, sea‐level rise (SLR), and encroaching coastal development.
T. I. Baxter, I. J. Walker, J. E. Dugan, D. M. Hubbard, L. Engeman, K. A. Emery, S. Vitousek, K. K. Johnston, A. J. Pickart, S. Smith, D. R. Fee, D. Willett, J. Wisniewski   +12 more
wiley   +1 more source

Field Observations of Intermittent Cross‐Shore Bed Load Transport on a Low‐Energy Beach

Journal of Geophysical Research: Oceans, Volume 131, Issue 6, June 2026.
Abstract Low‐energy sandy beaches typically have a rippled bed, and the presence of bed forms can strongly affect net sediment transport rates under combined forcing of waves and currents. In case low‐energetic forcing is combined with coarse sediment, bed load transport is an important mechanism to understand transport processes on such beaches.
Marlies van der Lugt, Noémie Fritsch, Matthieu de Schipper, Ad Reniers, Meagan Wengrove, France Floc'h   +5 more
wiley   +1 more source

Grain Size Sorting and Steady Bars Formation in Straight Channels—Part 2: Linear Theory

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 6, June 2026.
Abstract This is the second of two papers aimed to investigate grain sorting patterns associated with the formation of steady alternate bars in gravel‐bed rivers. Part 1 presented the analysis of a series of tailored experiments, performed in a mobile bed laboratory flume with fixed, straight banks. The results showed that a consistent pattern of grain
Niccolò Ragno, Marco Redolfi
wiley   +1 more source

Effect of tidal inlet stabilization on barrier island morphodynamics [PDF]

, 2019
Barrier islands are dynamic environments threatened by sea-level rise. Humans alter barrier island morphodynamics with potentially important but unknown long-term consequences. Here we use a new barrier island model to study how tidal inlet stabilization
Geomorfologie, Nienhuis, J.H., Coastal dynamics, Fluvial systems and Global change, JAAP H. NIENHUIS, Wang, Ping, Rosati, Julie D., Vallee, Mathieu   +6 more
core   +1 more source

Linked Canyons and Fans Communicate Through a Migrating Bedrock‐Alluvial Transition

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 6, June 2026.
Abstract Net‐erosional fluvial landscapes are often treated separately from net‐depositional fluvial landscapes. Yet these landscapes are often tightly linked by means of a moving‐boundary bedrock‐alluvial transition. We consider a linked canyon‐fan system in a Basin and Range province, basing our work loosely on Rainbow Canyon and Panamint Valley, USA.
Li Zhang, Gary Parker, Jeffrey Nittrouer, Xudong Fu, Shanghong Zhang, Guangqian Wang   +5 more
wiley   +1 more source

Local Characteristics of Sand Wave Patterns Are Governed by Underlying Sand Bank: A Linear Stability Approach

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 6, June 2026.
Abstract Tidal sand waves are dynamic bedforms, observed in shelf seas. In some cases they co‐exist with tidal sand banks, larger‐scale bed features. Sand wave characteristics then vary over the sand bank, migrating anti‐cyclonically around the bank. Yet, little is known about the processes behind sand wave formation on a sand bank characterized by a ...
Laura Portos‐Amill, Pieter C. Roos, Henk M. Schuttelaars, Suzanne J. M. H. Hulscher   +3 more
wiley   +1 more source

Continuous Coastal Monitoring with an Automated Terrestrial Lidar Scanner

Journal of Marine Science and Engineering, 2019
This paper details the collection, geo-referencing, and data processing algorithms for a fully-automated, permanently deployed terrestrial lidar system for coastal monitoring. The lidar is fixed on a 4-m structure located on a shore-backing dune in Duck,
Annika O’Dea, Katherine L. Brodie, Preston Hartzell   +2 more
doaj   +1 more source

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

Litho-sedimentological and morphodynamic characterization of the Pisa Province coastal area (northern Tuscany, Italy)

Journal of Maps, 2020
In this paper litho-sedimentological and morphodynamic maps of the coastal sector belonging to the Pisa Province are presented as an example of how increasing the accessibility to data on lithology, sedimentology, and morphodynamics may lead to a better ...
Duccio Bertoni, Serena Giacomelli, Lorenzo Ciulli, Giovanni Sarti   +3 more
doaj   +1 more source

Controls on Flow Separation at the River Bifurcation Head

Water Resources Research, Volume 62, Issue 6, June 2026.
Abstract Flow separation zones are common hydrodynamic features in river bifurcations, strongly influencing flow partitioning and channel morphology. While the inner‐bank separation zones have been widely recognized, we identify a previously underreported separation zone at the bifurcation head.
Zhaohui Deng, Jiaxue Wu, Jie Ren, Huan Liu   +3 more
wiley   +1 more source