Results 11 to 20 of about 5,965,886 (309)
Parameterizing the Sea Surface Roughness
Journal of Physical Oceanography, 2005 Abstract The concept of an “equivalent surface roughness” over the ocean is useful in understanding the relation between wind speed (at some height) and the net momentum flux from air to sea. The relative performance of different physics-motivated scalings for this roughness can provide valuable guidance as to which mechanisms are ...
Drennan, William M. +2 more
openaire +4 more sources
Journal of Marine Science and Engineering, 2022 The development of wind wave (i.e., sea state) inside an intense tropical cyclone (TC) is the dominant contributor to the sea surface roughness and thus significantly impacts the air–sea interaction. The sea state is known to vary with TC characteristics
Shuiqing Li +3 more
doaj +1 more source
Effects of decimetre-scale surface roughness on L-band brightness temperature of sea ice [PDF]
The Cryosphere, 2020 Sea ice thickness is an essential climate variable. Current L-Band sea ice thickness retrieval methods do not account for sea ice surface roughness that is hypothesised to be not relevant to the process.
M. Miernecki +6 more
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Sea‐surface aerodynamic roughness [PDF]
Journal of Geophysical Research: Oceans, 2003 This study surveys and evaluates similarity theory for estimating the sea‐surface drag coefficient with the bulk aerodynamic method. The most commonly used formulations of the aerodynamic roughness length, required by similarity theory, are examined using data sets from four different field programs. These relationships include the Charnock formulation
L. Mahrt +4 more
openaire +1 more source
Remote Sensing, 2021 This study presents mathematical analysis and numerical modeling for the estimation of measurement errors of height estimation over the sea surface for a precision radar altimeter installed in a low altitude flying vehicle.
Aleksandr I. Baskakov +3 more
doaj +1 more source
Deep Learning‐Based Sea Surface Roughness Parameterization Scheme Improves Sea Surface Wind Forecast
Geophysical Research Letters, 2023 Accurate offshore surface wind forecasting is crucial for navigation safety and disaster prevention. However, significant biases exist in forecasting sea surface winds due to the uncertainties in estimating sea surface roughness.
Shu Fu +6 more
doaj +1 more source
Decomposing Dual Scale Soil Surface Roughness for Microwave Remote Sensing Applications [PDF]
, 2012 Soil surface roughness, as investigated in this study, is decomposed in a dual scale process. Therefore, we investigated photogrammetrically acquired roughness information over different agricultural fields in the size of 6-22 m(2) and decomposed them ...
Seidel, Moritz +5 more
core +1 more source
Grinding surface roughness measurement based on the co-occurrence matrix of speckle pattern texture [PDF]
, 2006 Surface speckle pattern intensity distribution resulting from laser light scattering from a rough surface contains various information about the surface geometrical and physical properties.A surface roughness measurement technique based on the texture ...
Gledhill, Duke +5 more
core +1 more source
Surface morphology in engineering applications: Influence of roughness on sliding and wear in dry fretting [PDF]
, 2011 Influence of initial surface roughness on friction and wear processes under fretting conditions was investigated experimentally. Rough surfaces (Ra=0.15-2.52 [mu]m) were prepared on two materials: carbon alloy (AISI 1034) and titanium alloy (Ti-6Al-4V ...
Mathia, T.G. +8 more
core +1 more source
Impact of Variable Atmospheric and Oceanic Form Drag on Simulations of Arctic Sea Ice [PDF]
, 2014 Over Arctic sea ice, pressure ridges and floe and melt pond edges all introduce discrete obstructions to the flow of air or water past the ice and are a source of form drag.
Laxon, Seymour W. +19 more
core +1 more source