搜索结果: 1-15 共查到“海洋科学 Frequency”相关记录105条 . 查询时间(0.2 秒)
AUTOMATED MOSAICKING OF GEOSTATIONARY OCEAN COLOR IMAGER BY COMBINATION OF SPATIAL AND FREQUENCY MATCHING
GOCI Ocean Image Mosaicking Geometric Correction Frequency Matching
2018/6/4
In general, image mosaicking is a useful and important processing for handling images with narrow field of view. It is being used widely for images from commercial cameras as well as from aerial and s...
The concept of using high-frequency (HF) radio pulses to remotely probe the ocean surface has been around for decades. In this paper and the companion paper by Teague et al. (1997) we strive to introd...
High-Frequency Radar Remote Sensing:The New Revolution in Coastal Oceanography
High-Frequency Radar Remote Sensing New Revolution Coastal Oceanography
2015/8/10
The littoral ocean with its complicated coastline and complex bathymetry poses great challenges to oceanographers, coastal managers, and naval forces that have an ever increasing need to understand an...
Project 20 Low-Frequency Active Sonar: The Successful Union of Oceanographic and Systems R&D Disciplines at the NATO Undersea Research Centre and Elsewhere
Oceanographic and Systems Elsewherev
2015/7/20
This paper documents and illustrates how the original SACLANTCEN/NURC (Supreme Allied Command Atlantic Undersea Research Centre/NATO Undersea Research Centre) project initially known as the Active Adj...
Dynamics of barotropic low-frequency fluctuations in San Francisco Bay during upwelling
Hydrodynamic modeling Low-frequency fluctuations San Francisco Bay
2015/6/30
Observations of wind, surface elevations, and currents in San Francisco Bay during the 1999 upwelling season are analyzed to understand the dynamics of low-frequency currents in upwelling-dominated es...
The frequency of connection of coastal water bodies to the ocean predicts Carcinus maenas invasion
The frequency connection of coastal water bodies the ocean predicts Carcinus maenas invasion
2014/7/10
Semi-enclosed coastal water bodies range from permanently open estuaries to lagoons that are periodically isolated from the ocean. The proportion of time these are connected to the ocean may influence...
Scientists Identify Source of Mysterious Low-Frequency Sound Heard for Decades in the Southern Ocean
Scientists Identify Source Mysterious Low-Frequency Sound Heard for Decades Southern Ocean
2014/5/13
Scientists have conclusive evidence that the source of a unique rhythmic sound, recorded for decades in the Southern Ocean and called the “bio-duck,” is the Antarctic minke whale (Balaenoptera bonaere...
The response of giant kelp (Macrocystis pyrifera) in southern California to low-frequency climate forcing
giant kelp southern California
2014/4/17
The nutrient climate on the inner shelf off southern California changed markedly across the 1976–1977 North
Pacific climate regime shift. With respect to giant kelp (Macrocystis pyrifera) canopies of...
Ocean Acidification and the Increasing Transparency of the Ocean to Low-Frequency Sound
Ocean acid boric acid to dissolve carbonate ions sound waves Marine mammals
2015/7/6
As the ocean becomes more acidic, low-frequency (~ 1–3 kHz and below) sound travels much farther due to changes in the amounts of pH-dependent species such as dissolved borate and carbonate ions, whic...
The research on the highly efficient calculation method of 3-D frequency-domain Green function
frequency-domain Green function numerical approximation Gaussian integral
2011/9/13
The traditional calculation method of frequency-domain Green function mainly utilizes series or asymptotic expansion to carry out numerical approximation, however, this method requires very careful zo...
High-Frequency Components of Ocean Waves and Their Relation to the Aerodynamic Roughness
High-Frequency Components Aerodynamic Roughness Ocean Waves
2009/4/2
Ocean waves of high frequency (from about 10 to 200 rad sec−1) were observed by means of a thin capacitance-type wave gage. The representative rms height, hp, of the sea-surface irregularities a...
Continental Shelf Waves：Low-Frequency Variations in Sea Level and Currents Over the Oregon Continental Shelf
Continental Shelf Waves Sea Level Low-Frequency Variations Oregon Continental Shelf
2009/4/2
Sea level variations and currents on the Oregon continental shelf exhibit wavelike characteristics in a frequency band from approximately 0.15 to 0.45 cycle per day (cpd). Shelf wave dispersion curves...
Observed Anisotropy of Spectral Characteristics of Internal Waves Induced by Low-Frequency Currents
Spectral Characteristics Internal Waves Low-Frequency Currents
2009/3/26
The isotropy of the internal wave field is investigated from short-time spectra of horizontal current measured in the deep sea. A significant anisotropy is detected at high frequencies during most per...
Frequency responses of immersing tunnel element under wave actions
immersed tunnel motion response frequency domain linear potential theory
2011/9/9
The immersion of large-scale tunnel elements is one of the most important working procedures in the construction of an underwater immersed tunnel. To investigate the dynamic characteristics of tunnel ...
Some Three-Dimensional Characteristics of Low-Frequency Current Fluctuations near the Oregon Coast
Three-Dimensional Characteristics Oregon Coast Low-Frequency Current Fluctuations
2009/3/7
An analysis is presented of the low-frequency fluctuations [ω<0.6 cycle per day (cpd)] of the currents near the Oregon coast, based on the 1972 and 1973 measurements from moored current meters in CUE-...