Results 121 to 130 of about 6,314,339 (292)

Mechanically‐Gated Stochastic Resonance for All‐Optical Acoustic Sensing in Noisy Environments

Advanced Science, EarlyView.
A mechanically‐gated stochastic resonance (MGSR) sensing system is demonstrated, wherein stochastic resonance is enabled by an all‐optical bistable fiber Bragg grating feedback loop and gated by mechanical resonance. Under ambient noise, the system generates bistable outputs satisfying the Kramers escape‐rate condition, yielding signal‐to‐noise ratio ...
Xuyu Zhang, Minzheng Sun, Cunzheng Fan, Shuolong Zhu, Qilin Hong, Pan Xu, Min Zhu, Zhengliang Hu, Yongchao Zou, Qizhen Sun   +9 more
wiley   +1 more source

Surface mass balance and ice dynamics of Qaanaaq Ice Cap, northwestern Greenland (Kalaallit Nunaat), from 2012 to 2025

Journal of Glaciology
To investigate glacier mass loss and ice dynamics in northwestern Greenland, we measured surface mass balance (SMB), ice velocity and surface elevation from 2012 to 2025 on Qaanaaq Glacier, an outlet glacier of Qaanaaq Ice Cap.
Takuro Imazu, Shin Sugiyama, Kaho Watanabe, Ken Kondo, Shun Tsutaki   +4 more
doaj   +1 more source

Mass balance on elevation zones of Freya Glacier, Greenland, in 2007/2008

, 2014
Mass balance on elevation zones of Freya Glacier, Greenland, in 2010 ...
Daniel Binder (6979367), Gernot Weyss (8007086), Binder, Daniel, Bernhard Hynek (6979793), Weyss, Gernot, Hynek, Bernhard, Wolfgang Schöner (8007089), Schöner, Wolfgang   +7 more
core   +1 more source

Multi-temporal elevation changes of Fedchenko Glacier, Tajikistan, from 1928 to 2021

Journal of Glaciology
Abstract The Fedchenko Glacier in central Pamir is one of Asia’s longest glaciers and has been a focal point for scientific investigation spanning the 20th and 21st centuries. This study explores a time series of elevation changes from 1928 to 2021 using diverse data sources: historical maps, optical digital elevation models from various sensors (KH-
Brun, Fanny, Lambrecht, Astrid, Mayer, Christoph, Rezaei, Janali, Dehecq, Amaury, Beraud, Luc, Deschamps-Berger, César, Berthier, Etienne, Völksen, Christof, Kayumov, Abdulhamid   +9 more
openaire   +4 more sources

High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State

American Journal of Botany, EarlyView.
Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording, Erik W. Ertsgaard, David E. Giblin, Iris H. Dimpsey, Owen B. Bard   +4 more
wiley   +1 more source

Multisource Satellite Altimetry Reveals Complex Elevation Dynamics at Klutlan Glacier in Alaska Between 2008 and 2024

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Assessing glacier elevation changes in rugged terrain remains a persistent challenge for satellite altimetry. This study integrated Jason-2, CryoSat-2, and ICESat-2 data to monitor surface elevation changes of the Klutlan Glacier in Alaska.
Jiayu Hu, Yuande Yang, Qihua Wang, Jianglong Zhang, Zuqiang Li, Yuechen Wang   +5 more
doaj   +1 more source

Changes in glacier volume on Mt. Gongga, southeastern Tibetan Plateau, based on the analysis of multi-temporal DEMs from 1966 to 2015

Journal of Glaciology, 2019
The accelerated retreat of glaciers and the reduction of glacier ice reserves caused by climate change can significantly affect regional water resources and hydrological cycles.
BO CAO, BAOTIAN PAN, WEIJIN GUAN, ZHENLING WEN, JIE WANG   +4 more
doaj   +1 more source

Fine‐scale genetic structure of the cloud forest tree Ocotea psychotrioides revealed by genome‐wide SNP data

American Journal of Botany, EarlyView.
Abstract Premise Recent advances in genomic technologies now enable the reconstruction of evolutionary histories at fine spatial scales, illuminating the complex dynamics that shape biodiversity patterns in naturally discontinuous, archipelago‐like ecosystems such as cloud forests.
Leopoldo Hurtado‐Reveles, Lidia I. Cabrera, Juan Francisco Ornelas, Santiago Ramírez‐Barahona, Andrés Ernesto Ortiz‐Rodriguez   +4 more
wiley   +1 more source

TanDEM-X digital elevation models of Columbia Glacier, Alaska during 2011-2016, Links to GeoTIFF files

, 2017
TanDEM-X digital elevation models of Columbia Glacier, Alaska during 2011-2016, Links to GeoTIFF ...
Saurabh Vijay (7884500), Braun, Matthias Holger, Matthias Holger Braun (7049873), Vijay, Saurabh   +3 more
core   +1 more source

Freedom dreaming of migrant justice: Critical reflections on counterspaces and institutional violence in the university

American Journal of Community Psychology, EarlyView.
Abstract US universities are built on stolen land and sustained through hierarchies of power that produce what migrant justice scholars name as b/order regimes. As institutions that claim to be sites of learning and inclusion, universities are fraught with contradictions as simultaneously sites of dispossession, exclusion, and control.
Sara L. Buckingham, Jesica Siham Fernández   +1 more
wiley   +1 more source