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| definition | A family of tags designed for tracking animal movements over long periods based on measurement of light levels at dawn and dusk. The tags also measure temperature and whether they are wet or dry. Geolocator accuracy is of the order of 150km. Tags must be recovered for data download. The MK3 family weigh 2.5 grams and are designed to be attached to deep-diving and larger water birds. Tags in this family were developed by British Antarctic Survey and are produced under licence by Biotrack: the BAS MK19 as the Biotrack MK3005 and the BAS MK16 as the Biotrack MK3006. | |||
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| definition | A rugged temperature sensor designed to measure water surface temperature in harsh environments such as oil platforms. It is a non-contact system that measures infra-red radiation with a second senor - the Sky Spy - that provides input for sky radiation correction. It measures temperatures in the range -10-70C with an accuracy of 0.3C below 30C and 0.5C above 30C. The standard field of view is 10 degrees with 5 and 2 degrees available as options. The sensor is encased in a solid block of plastic hermetically sealed into a titanium case to provide waterproofing and resistance to salt spray. | |||
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| definition | A family of encapsulated pressure sensors based on Paroscientific patented technology that determines pressure by measuring the oscillating frequency of a quartz crystal resonator. They are available in depth ranges of 10-140m, 10-700m, 0-700m and 1400-7000m with accuracy of 0.01% full scale or 0.02% full scale for miniature sensors. | |||
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| definition | A precision radiometer that measures biologically effective solar UV radiation with a spectral response of 280-320nm. Coloured filters and a UV-B phosphor convert incoming UV-B radiation into green light which is then measured by a calibrated solid-state photodetector. The UVB-1 measures global solar UV-B irradiance or the power per unit area of UV-B radiation received by a horizontal surface from the entire hemisphere of the sky. Global radiation includes both light transmitted directly through the atmosphere and light scattered by atmospheric gases and particulate matter in the atmosphere. The UVB-1 measures both the direct and diffuse components of global radiation. Cosine response is ±5% for 0 - 60 degree solar zenith angle and sensitivity is 1.97 volt/(watt/m2) of total UV-B irradiance. | |||
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| definition | A deep water or coastal time series water sampler that collects samples for biological, dissolved major and minor nutrient, dissolved trace metal, or dissolved organic carbon analyses. It collects 48 500ml samples of ambient water and suspended material in Tedlar bags, isolating the samples for subsequent laboratory analysis following a user defined sampling schedule. RAS systems can optionally be fitted with in-line pre-filters and an external temperature sensor. Deployment data with a report of sample event conditions is stored to non-volatile EEPROM. Further information is available at http://www.mclanelabs.com/master_page/product-type/samplers/remote-access-sampler. | |||
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| definition | Sensors that measure the intensity and nature of electromagnetic radiation emitted from the Earth in a manner optimised for the determination of water body surface temperature. | |||||
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| definition | Devices attached to living organisms with the purpose of determining the location of those organisms as a function of time after tagging and release. | |||
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| definition | This is an ultra-miniature light meter less than 10cm long and 2cm in diameter with an approximately (due to a relatively large linkage to the body) spherical light collector and photodiode sensor. It can measure light intensities up to 2000 uMole/m2/s with an accuracy of 4% full-scale and a resolution of 1 uMole/m2/s. No documentation can be found giving the spectral range of the sensor, but the approximate 4-pi geometry (measuring scalar irradiance) is usually associated with PAR wavelengths. | |||
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| definition | The SBE 37 MicroCAT is a high accuracy conductivity and temperature recorder with an optional pressure sensor and an Optical Dissolved Oxygen (ODO) sensor designed for deployment on moorings. It is available with either a plastic (rated to 350m) or titanium (rated to 6000m) housing and has an internal pump to improve conductivity and oxygen response. Bio-fouling protection is provided by expendable anti-foulant devices, pump flow path and pumping regimen. | |||||||||
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| definition | The SBE 16plus V2 is a high accuracy conductivity and temperature recorder (pressure optional) with RS232 or RS485 interfaces. It is designed for moorings and other long-duration, fixed-site deployments. It has 6 amplified A/D input channels and conditioned power of 500 ma is available for auxiliary sensors, dissolved oxygen, turbidity, fluorescence, PAR etc. Compared to the previous 16plus, the V2 incorporates an electronics upgrade and additional features, with six differentially amplified A/D input channels, one RS-232 data input channel, and 64 MB FLASH memory. Data can be output in XML as well as ASCII and HEX formats. Firmware upgrades can be downloaded through the communications port, without opening the instrument. | |||||||