Results 71 to 80 of about 470,222 (200)

CONTIUOUS MEASUREMENT OF THE FRAZIL THICKNESS UNDER ICE SHEET [PDF]

, 2009
The frazil thickness variation process that causes ice jamming has not yet been fully clarified, partly because observation itself is difficult. In this study the process of frazil thickness variation was clarified from the measured values of ADCP based ...
清治, 真人, 吉川, 泰弘, 早川, 博, Watanabe, Yasuhau, 渡邊, 康玄   +4 more
core  

Using Icepack to reproduce ice mass balance buoy observations in landfast ice: improvements from the mushy-layer thermodynamics [PDF]

The Cryosphere
Icepack (v1.1.0) – the column thermodynamics model of the Community Ice CodE (CICE) version 6 – is used to assess how changing the thermodynamics from the Bitz and Lipscomb (1999) physics (hereafter BL99) to the mushy-layer physics impacts the model ...
M. Plante, J.-F. Lemieux, L. B. Tremblay, A. Tivy, J. Angnatok, F. Roy, G. Smith, F. Dupont, A. K. Turner   +8 more
doaj   +1 more source

Quantifying the Relative Impact of Atmospheric Variables and Polynya Dynamics on Fast Ice in Terra Nova Bay, Antarctica

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
Antarctic fast ice in Terra Nova Bay is crucial for regional climate, ecosystems, and scientific logistics but has recently shown unprecedented decline, impacting operations at Jang Bogo Station. Despite its significance, there remains limited predictive understanding of Antarctic fast ice dynamics, especially regarding thickness and stability, with ...
Seung Hee Kim, Changhyun Choi, Siung Lee, Hyangsun Han, Sanghee Kim   +4 more
wiley   +1 more source

Processes Driving Drift‐Ice Evolution and Its Interaction With the Oceanic and Atmospheric Boundary Layers

Reviews of Geophysics, Volume 64, Issue 1, March 2026.
Abstract Sea ice is a crucial component of polar climate systems and is undergoing substantial changes in both hemispheres due to evolving climatic conditions. Arctic sea ice is transitioning from perennial to seasonal cover, and the Southern Ocean sea ice is exhibiting recent minima and enhanced seasonality.
Jari Haapala, Morven Muilwijk, Ioanna Merkouriadi, Pedro Duarte, Ilker Fer, Mats A. Granskog, Virginie Guemas, Tore Hattermann, Robinson Hordoir, Doroteaciro Iovino, Polona Itkin, Roberta Pirazzini, Felix Pithan, Igor Polyakov, Annette Rinke, Letizia Tedesco, Petteri Uotila, Martin Vancoppenolle, Marcello Vichi, Timo Vihma   +19 more
wiley   +1 more source

ICE JAM FLOOD EXPERIMENT USING MIXED REAL ICE WITH ICE SHEET AND FRAZIL SLUSH AROUND BRIDGE PIERS [PDF]

, 2020
本研究は，橋脚部におけるアイスジャム現象の解明のために，実河川の現象に近い氷板と晶氷が混在する実氷を用いたアイスジャム実験を実施した．晶氷の影響を明らかにするために，氷板模型速度と流下堆積枚数，高水敷での氾濫範囲，水位水深変動を用いて検討を行った．晶氷を含む場合は，流下する氷板の下に晶氷が堆積して氷同士が固着し大きな塊として流下し，形状抵抗が大きくなる．このため，氷板速度は遅くなり，流下堆積枚数が増加することが分かった．また，晶氷を含む場合は，大きな氷塊となって流下するため ...
横山, 洋, 山田, 隆司, 吉川, 泰弘, YOSHIKAWA, Yasuhiro, ヨシカワ, ヤスヒロ, YAMADA, Ryuji, 小池, 太郎, KOIKE, Taro, YOKOYAMA, Hiroshi   +8 more
core  

Study on the numerical model of river ice for the Baishan reach of Songhua River, China

Shui kexue jinzhan, 2016
Based on the latest research both on the mechanisms of river ice and on the theories of hydrodynamics, river mechanics, thermodynamics, river ice hydraulics, and mechanics of solids, this study developed a synthetic and dynamic mathematic model of river ...
FAN Lin, MAO Zeyu, WU Jianjiang, QI Wenbiao   +3 more
doaj   +1 more source

Ice Formation. With Special Reference to Anchor-Ice and Frazil [PDF]

Bulletin of the American Geographical Society, 1908
Mode of access: Internet.
openaire   +1 more source

Salinity and solid fraction of frazil and grease ice [PDF]

Journal of Glaciology, 2012
AbstractUnder turbulent conditions ice growth in sea water often occurs as tiny suspended frazil ice crystals. When the turbulence is insufficient to keep the crystals in suspension, they may accumulate in a surface grease layer of pure ice and sea water. Here we give an account of this grease of low solid fraction and high salinity prior to its freeze-
Sönke Maus, Sara De La Rosa
openaire   +1 more source

Subpolar North Atlantic Water Mass Transformation and Overturning in Eddying and Non‐Eddying Simulations

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 3, March 2026.
Abstract Buoyancy forcing in the subpolar North Atlantic Ocean (SPNA) is an important driver of the Atlantic Meridional Overturning Circulation (AMOC). To advance understanding of the mechanisms connecting the two processes and their relative importance in sub‐basins within the SPNA, we apply the Water Mass Transformation Framework to a matched‐pair of
Ben Moore‐Maley, Julie L. McClean, Alice M. Barthel, Sarah T. Gille, Luke P. Van Roekel   +4 more
wiley   +1 more source

Impact of Density Gradients and Momentum Ratios on Streamwise Circulation at River Confluences

Water Resources Research, Volume 62, Issue 3, March 2026.
Abstract Mixing processes in confluences influence concentrations of water quality parameters such as suspended sediment loads and water chemistry in the post‐confluent reach. Thus, improving our understanding of confluence flow structures and mixing is key to predicting the impact of the downstream propagation of pollutants and nutrients.
Abdelrahman Hosny Abdou, Jason Duguay, Pascale Biron, Jay Lacey   +3 more
wiley   +1 more source