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Survey of instrumental methods for the determination of the high frequency wave spectrum
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SWALES Sonic Buoy - meteorological data report
Full text linkDuring the SWALES experiment in the autumn of 1993, the Sonic Buoy was deployed twice as part of an array of moored instrumentation. On the Sonic Buoy, meteorological data were acquired by the Formatter Processor from the Sonic and Multimet Processors' output data streams. These data were combined and logged as 10 minute means on the Formatter F1ashcard memory; a selection of the data was also telemetered in near real time via the polar orbiting ARGOS and geostationary METEOSAT satellite data collection systems.
This data report briefly describes the processes employed in acquisition of the data. It then describes the processes for the recovery of the data from the various source media, the quality control procedures applied and, finally, the resulting output data files.
Appendices include comprehensive details of the software developed for the above processes and of the formats used for the input and output data
Sonic Buoy - GCAT Raw Data Logger handbook
Full text linkThe GCAT Raw Data Logger was developed as part of the Sonic Buoy development program; it was required as an on-board partial back-up system to the (previously untried) VHF Radio Telemetry System for obtaining raw sonic anemometer data.
It monitors the sonic anemometer transmit and receive lines to determine the start and end of the sections of data used by the Sonic Processor and logs a single record to a 4 Mbyte Flash EEPROM PCMCIA card at intervals of 48 hours.
This document describes in detail the design and operation of the GCAT Raw Data Logger; it is intended to serve the combined purposes of documenting and design and acting as a guide to operating the system and recovering the data
SWALES Directional Waverider data report
Full text linkDuring the SWALES experiment in the autumn of 1993, a Directional Waverider Buoy (DWR) was deployed as part of an array of moored instrumentation. Directional spectra were logged on the buoy's EEPROM logger at half-hourly intervals; the same data were telemetered in near real time via the polar orbiting ARGOS satellite data collection system.
This data report briefly describes the processes employed in acquisition of the data. It then describes the processes for the recovery of the data from the two source media, the quality control procedures applied and, finally, the resulting output data files.
Appendices include compteherisive detalls of the software developed for the above processes and of the formats used for the input and output data
SWALES Sonic Buoy - Sonic Anemometer spectral and raw data report
Full text linkDuring the SWALES experiment in the autumn of 1993, the Sonic Buoy was deployed twice as part of an array of moored instrumentation. On the Sonic Buoy, 3 component wind speed samples were acqujred by the Sonic Processor from a Gill Sonic Anemometer; using a sampling rate of 20.83 Hz. These data were spectrally processed to a form which allowed estimation of wind stress to be made, using the disSipation technique. The processed data were saved to an EPROM logger and a selected set of parameters was also sent to the Formatter Processor for amalgamation with the Multimet mean
meteorological data. Raw anemometer data were continuously telemetered via a VHF link to shore and occasional records of raw data were also logged on the Sonic Buoy Raw Data Logger.
This data report briefly describes the processes employed in acquisition of the data. It then describes the processes for the recovery of the data from the various source media, the quality control procedures applied and, finally, the resulting output data files.
Appendices include comprehensive details of the software developed for the above processes and of the formats used for the input and output data
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