DocumentCode :
2603182
Title :
A new in situ chemical analyzer for mapping coastal nutrient distributions in real time
Author :
Hanson, Alfred K.
Author_Institution :
SubChem Syst. Inc., Jamestown, RI, USA
Volume :
3
fYear :
2000
fDate :
2000
Firstpage :
1975
Abstract :
A rapid-response, submersible chemical analyzer has been developed that is particularly suited for mapping nutrient distributions in 3-D space and time and for testing hydrodynamic models for chemical transport, within rivers, estuaries, coastal and off shore waters. The SubChemPak AnalyzerTM is a novel 3-channel reagent delivery module that transforms underwater optical instruments into sensitive chemical analyzers for rapid measurements of nutrients and other environmentally important chemicals. A family of multinutrient analyzers is being developed for selected nutrients: nitrate, nitrite, ammonia, urea, phosphate, silicate, and iron. Continuous flow spectrophotometric and fluorometric methodologies have been optimized for rapid in situ measurements of the nutrients. The operation, in situ calibration and data acquisition for the instrument are remotely controlled by a computer. The concentration readings for nutrients are instantaneously displayed on the computer monitor. The SubChemPak Analyzer may be co-deployed with standard oceanographic electronic sensor packages (CTD) for vertical and/or horizontal (to-yo) profiling
Keywords :
chemical analysis; oceanographic equipment; SubChemPak Analyzer; ammonia; calibration; chemical analyzers; chemical transport; coastal nutrient distribution; coastal waters; data acquisition; estuaries; horizontal profiling; hydrodynamic model testing; in situ chemical analyzer; iron; multinutrient analyzers; nitrate; nitrite; off shore waters; phosphate; rapid-response submersible chemical analyzer; reagent delivery module; real time mapping; rivers; silicate; underwater optical instruments; urea; vertical profiling; Chemical analysis; Hydrodynamics; Instruments; Iron; Optical sensors; Optimization methods; Rivers; Sea measurements; Testing; Underwater vehicles;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
OCEANS 2000 MTS/IEEE Conference and Exhibition
Conference_Location :
Providence, RI
Print_ISBN :
0-7803-6551-8
Type :
conf
DOI :
10.1109/OCEANS.2000.882229
Filename :
882229
Link To Document :
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