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The majority of High Frequency (HF) radars used worldwide operate at medium to high frequencies (8 to 30 MHz) providing spatial resolutions ranging from 3 to 1.5 km and ranges from 150 to 50 km. This paper presents results from the deployment of a single Very High Frequency (VHF, 48 MHz) WEllen RAdar (WERA) radar with spatial resolution of 150 m and range 10-15 km, used in the nearshore off Cape Hatteras,...
The recent Gulf of Mexico (GOM) oil tragedy is emphasizing the importance of collecting sound, real-time ocean observations through collaborations of academia, government, and industry. Ocean observing systems (OOS) provide continuous data for various environmental, oceanographic, and atmospheric parameters. Many systems, such as moorings and buoys, are in fixed locations providing excellent time...
The Aquarius instrument is a pathfinder to demonstrate the measurement of sea surface salinity (SSS) from space. The goal is to measure SSS with an accuracy of 0.2 practical salinity units (psu) and spatial resolution of 150 km, globally each month. To achieve this high accuracy in SSS, the radiometer requires accurate radiometric calibration. As part of the calibration plan it is planned to look...
A continuous imaging system equipped with fluorescent imaging for counting, measuring size of individual cell and classification of phytoplankton has been developed. Fluorescent imaging is very useful to distinguish phytoplankton from other particles. Our system allows us to count cell numbers and measure individual cell size as accurate as microscopy measurement. Moreover, the measurements can be...
Summary form only given. The Monterey Bay Aquarium Research Institute (MBARI), in conjunction with California Polytechnic Institute in San Luis Obispo and UCSB, have conducted two in a series of multi-parameter oceanographic surveys designed to measure coastal upwelling, frontal processes, and bioluminescence in the Monterey Bay. The surveys have consisted of one to two weeks of continuous, round...
Summary form only given. A new horizontal profiling ADCP achieves 1 cm/s velocity standard deviation with 2 second averaging interval. The results of data from several locations are discussed and the performance of this instrument is discussed in detail. The results show that this instrument offers the ability to measure very low velocities in near real-time, allowing high spatial and temporal resolution...
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