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Deep ocean CTD data 2011-2013 from the Aloha Cabled Observatory (NCEI Accession 0123115)
The ALOHA Cabled Observatory (ACO) is a system of hardware and software that extends electric power and the Internet offshore, supporting sustained real-time observations in the deep ocean. The ACO is connected to Oahu, Hawaii by the HAW-4 telecommunications cable transferred to the project by AT&T in 2007. On June 6th, 2011, the ACO was deployed on the ocean bottom (depth ~ 5 kilometers - 3 miles) near Station ALOHA, 100 kilometers (60 nautical miles) north of Oahu, Hawaii. Station ALOHA is the site of the long-term Hawaii Ocean Time-series (HOT) open ocean measurement program, visited by research vessels 10-12 times each year since October 1988.
There are five modules that are connected together on the seafloor. The Junction Box is connected to the HAW-4 cable and to the Observatory module. Together, they supply 1200 watts of power and 100 Megabits per second of Ethernet communications to sensor systems on these two modules, and to the other three modules. The other modules are the Camera tripod, the AMM bottom node, and the TAAM mooring. Sensors provide live video of the ocean bottom around the ACO, sound from local and distant sources, currents, pressure, temperature, and salinity.
This data set contains the rapidly sampled CTD data from a SeaBird SBE-37 Microcat during 2011-2013. The initial sampling rate was 1 minute, and it was changed to 1 second on June 27th, 2011, and to 2 seconds on December 28th, 2011. Salinities were calculated using the UNESCO routines. Currents from ADCP are available separately. The project is ongoing with data from 2014 to become available.
Complete Metadata
| describedByType | application/octet-steam |
|---|---|
| identifier | gov.noaa.nodc:0123115 |
| issued | 2014-11-14T00:00:00.000+00:00 |
| landingPage | https://www.ncei.noaa.gov/contact |
| language | [] |
| rights | otherRestrictions |
| spatial | -158.0062,22.73873,-158.0062,22.73873 |
| temporal | 2011-06-13T00:00:00+00:00/2013-12-31T00:00:00+00:00 |
