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| Titel |
Upper Ocean Profiles Measurements with ASIP |
| VerfasserIn |
B. Ward, A. H. Callaghan, T. Fristedt, J. Vialard, Y. Cuypers, R. A. Weller, C. E. Grosch |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250030456
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| Zusammenfassung |
| This presentation describes results from the Air-Sea Interaction Profiler (ASIP), an
autonomous profiling instrument for upper ocean measurements. The measurements from
ASIP are well suited to enhancing research on air–sea interfacial and near surface
processes.
Autonomous profiling is accomplished with a thruster, which submerges ASIP to a
programmed depth. Once this depth is reached the positively buoyant instrument will ascend
to the surface acquiring data. ASIP can profile from a maximum depth of 100 m
to the surface, allowing both mixed layer and near–surface measurements to be
conducted.
The sensor payload on ASIP include microstructure sensors (two shear probes
and a thermistor); a slow response accurate thermometer; a pair of conductivity
sensors; pressure for a record of depth; PAR for measurements of light absorption in
the water column. Other non–environmental sensors are acceleration, rate, and
heading for determination of vehicle motion. Power is provided with rechargable
lithium-ion batteries, supplying 1000 Whr, allowing approximately 300 profiles.
ASIP also contains an iridium/GPS system, which allows realtime reporting of its
position.
ASIP was deployed extensively during the Cirene Indian Ocean campaign and our results
focus on the data from the temperature, salinity, light, and shear sensors. |
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