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ACO Real-time Data Display

Temperature and Salinity at 4728m
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CTD1
CTD2
CTD4
Pressure (dbar) - - -
Temperature (°C) - - -
Conductivity(S/m) - - -
Salinity (g/kg) - - -
Oxygen (ml/l) - - -
Current Mean Velocity
Average Doppler currents 34-50 m above the bottom
ADP1
East Velocity(m/s) -
North Velocity(m/s) -
Absolute Pressure
Pressure (dbar)
Data is new and provisional
4 822.593
PRS1
0.000
PRS2
Fluorometer
7-Sep-2023 3:52:56 UTC
FLN1
FLN2
Fluorescence (μg/l) 0.029 0.041
Daily Corrected Potential Temperatures
Daily Along-, Cross-isobath Mean Currents
Daily Zonal and Meridional Mean Currents
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Still Image Camera 2.
Live Stream Camera 2.

Pictures of the abyss are taken every minute with the Axis 214PTZ video camera located at 1.5 m from the bottom, installed in June 2011. The camera is mounted on a tripod and connected to the Observatory. Still image slideshow(Camera 1 disabled).

Latest Temperatures
Recent Temperature Plots

Description of Image 1
Description of Image 2
Description of Image 3

Latest Temperature time-series obtained with CTD1 (left plot: SBE-37 SN 2401), CTD2 (right plot: SBE-37SMP SN 10149), and CTD3 (bottom plot: SBE-53MP SN 005) located in the Observatory platform, Basic Sensor Package, and Basic Sensor Package 2 respectively.
Note: The CTD3 pump was turned off on 9/21/2016 19:47:13 UTC

Latest Salinities
Recent Salinity Plots

Description of Image 1
Description of Image 2
Description of Image 3

Latest Salinity time-series obtained with CTD1 (left plot: SBE-37 SN2401), CTD2 (right plot: SBE-37SMP SN 10149), and CTD3 (bottom plot: SBE-53MP SN 005) located in the Observatory platform, Basic Sensor Package, and Basic Sensor Package 2 respectively.
Note: The CTD3 pump was turned off on 9/21/2016 19:47:13 UTC

Latest Oxygen
Recent Oxygen Plots

Description of Image 1
Description of Image 2

Latest Oxygen time-series obtained with CTD2 (left plot: SBE-37SMP SN 10149) and CTD4 (right plot: SBE-37SMP SN 23203), located in the Basic Sensor Package and Basic Sensor Packages 4 and 5, respectively.

Latest Currents
Recent Currents Plots

Description of Image 1

Latest current countours obtained with a 250 kHz SonTek Acoustic Doppler Profiler SN C117 located in the Observatory Platform (Small Experiment Module).

Description of Image 2

Latest mean current vector between 34 and 50 m above the bottom, the current magnitude (in m/s) is indicated by the inner circles. East is to the right, up is to the north

Description of Image 3

Average current velocity trace in m/s between 34 and 50 m above the bottom for the last 24 hours.

The ADP transducers are 1.83 m above the bottom pointing upwards. The ADP data are processed using software developed by the E. Firing ADCP Laboratory at the University of Hawaii

Description of Image 1
Description of Image 2

The Paroscientific Nano-BPR pressure data is new and provisional.
Recent Pressure Plots

Description of Image 1
Description of Image 2
Description of Image 2

Pressure time-series obtained with Paroscientific Nano-BPR (left) mounted on BSP2, and Paroscientific RBR (right) mounted on BSP4. Data for the Paroscientific Nano-BPR is available from 21 Sept 2015 at 40Hz. As of 09 Mar 2016, sampling for the Paroscientific Nano-BPR was changed from 40Hz to 10Hz. As of 31 Aug 2016, sampling for the Paroscientific Nano-BPR was changed back to 40Hz from 10Hz.

Latest pressure residuals time-series from the Nano-BPR Pressure Sensor, after removing the barotropic tides estimated from the TPXO 7.2 model, and the mean pressure at the observatory.

Latest Fluorometer
Recent Fluorometer Plots

Description of Image 1
Description of Image 2

Chlorophyll and Turbidity time-series obtained with the WetLABS Fluorometer (FLNTURTD SN 2027) mounted in BSP2. The red line is a 1-hour running mean.

Real Time Streaming Audio with spectrograph

ACO YouTube live spectrograph stream

Real Time Streaming Audio only

Includes graphic display of frequency spectral decomposition (increasing frequency to the right), with bright colors showing greater energy. Newest spectra appear at top of image and oldest disappear at the bottom.

Streaming audio is lossy compressed for broadcast purposes. Please contact Dr. Bruce Howe (bhowe(at)hawaii(dot)edu) to obtain the raw acoustic lossless data for analysis.

Recorded Audio

Listen to previous sound recordings of whales, earthquakes, etc. obtained with the hydrophone located in the ACO Observatory.

Experimental icListen Streaming Audio

Description of Image 1
Description of Image 2

Latest seismogram time-series obtained with an OAS E-2PD hydrophone located on the JBOX frame of the observatory (Hydrophone Experiment Module). The sensor is nominally 1 m above the bottom. These graphs show low-frequency acoustic signals received by sources such as earthquakes, ships, and baleen whales.
Recent Seismogram Plots
Recorded Events
Seismic events previously recorded.

Dummy content for KNO.