Results 41 to 50 of about 6,074 (256)

Surface roughness signatures of summer arctic snow-covered sea ice in X-band dual-polarimetric SAR

GIScience & Remote Sensing, 2020
Surface roughness of sea ice is primary information for understanding sea ice dynamics and air–ice–ocean interactions. Synthetic aperture radar (SAR) is a powerful tool for investigating sea ice surface roughness owing to the high sensitivity of its ...
Hyangsun Han, Jae-In Kim, Chang-Uk Hyun, Seung Hee Kim, Jeong-Won Park, Young-Joo Kwon, Sungjae Lee, Sanggyun Lee, Hyun-Cheol Kim   +8 more
doaj   +1 more source

Quantitative Evaluation of the Effects of Large-Scale Sea Wave Components on Microwave Backscattering From Ocean Surface

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
This article quantitatively examined the effect of these long-wave components with wavelength larger than the Bragg component on radar backscattering using the series-expanded first-order small-slope approximation (SSA-1) and the Hwang sea wave spectrum ...
Dengfeng Xie, Feng Guo
doaj   +1 more source

Improved Simulation of the Polar Atmospheric Boundary Layer by Accounting for Aerodynamic Roughness in the Parameterization of Surface Scalar Exchange Over Sea Ice

Journal of Advances in Modeling Earth Systems, 2023
A new, simple parameterization scheme for scalar (heat and moisture) exchange over sea ice and the marginal ice zone is tested in a numerical weather and climate prediction model.
A. D. Elvidge, I. A. Renfrew, J. M. Edwards, I. M. Brooks, P. Srivastava, A. I. Weiss   +5 more
doaj   +1 more source

Effect of Spraying and Mesh Size on Surface Roughness of SS400 Steel Sandblasting Process

Journal of Renewable Energy and Mechanics, 2021
During this time the ship's hull often occurs due to corrosion levels of salt in the Indonesian sea varies. The repair process often done to overcome this problem is by sandblasting which aims to clean the metal from the surface of the rust and provide ...
Rieza Zulrian Aldio, Dedikarni, Budi Saputra   +2 more
doaj   +1 more source

Coastal Waveform Retracking in the Slick-Rich Sulawesi Sea of Indonesia, Based on Variable Footprint Size with Homogeneous Sea Surface Roughness

Remote Sensing, 2019
Waveforms of radar altimeters are often corrupted due to heterogeneous sea surface roughness within footprints, such as slicks. In past studies, subwaveform retrackers such as the adaptive leading edge subwaveform retracker (ALES) which use only a ...
Xifeng Wang, Kaoru Ichikawa, Dongni Wei
doaj   +1 more source

The FuGas 2.5 Updated for the Effects of Surface Turbulence on the Transfer Velocity of Gases at the Atmosphere–Ocean Interface

Journal of Marine Science and Engineering, 2020
Accurately estimating air–water gas exchanges requires considering other factors besides wind speed. These are particularly useful for coastal ocean applications, where the sea-state varies at fine spatial and temporal resolutions.
Vasco M. N. C. S. Vieira, Marcos Mateus, Ricardo Canelas, Francisco Leitão   +3 more
doaj   +1 more source

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

FEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas, Aaron D. Morgan, Ignas Čiurlionis, Christian Böhm, Stefan Jockenhövel, Willi Jahnen‐Dechent, Marc A. M. J. van Zandvoort   +6 more
wiley   +1 more source

Characterizing winter landfast sea-ice surface roughness in the Canadian Arctic Archipelago using Sentinel-1 synthetic aperture radar and the Multi-angle Imaging SpectroRadiometer

Annals of Glaciology, 2020
Two satellite datasets are used to characterize winter landfast first-year sea-ice (FYI), deformed FYI (DFYI) and multiyear sea-ice (MYI) roughness in the Canadian Arctic Archipelago (CAA): (1) optical Multi-angle Imaging SpectroRadiometer (MISR) and (2)
Rebecca A. Segal, Randall K. Scharien, Silvie Cafarella, Andrew Tedstone   +3 more
doaj   +1 more source

On the Dependence of Sea Surface Roughness on Wind Waves

Journal of Physical Oceanography, 1998
Abstract The influence of wind waves on the momentum transfer (wind stress) between the atmosphere and sea surface was studied using new measured data from the RASEX experiment and other datasets compiled by Donelan et al. Results of the data analysis indicate that errors in wind friction velocity u∗ of about ±10% make it difficult to conclude on the ...
H. K. Johnson, J. Højstrup, H. J. Vested, S. E. Larsen   +3 more
openaire   +1 more source

Protocol for quantifying miRNA trafficking across the endosomal membrane

FEBS Open Bio, EarlyView.
An in vitro protocol measures miRNA uptake into endosomes isolated from mammalian cell extracts, which are free of subcellular contaminants. Performed at 37 °C in the presence of ATP, it ensures the import of single‐stranded miRNA into the endosomal lumen.
Syamantak Ghosh, Kamalika Mukherjee, Suvendra N. Bhattacharyya   +2 more
wiley   +1 more source