PAP April 2021

The April 2021 mooring was deployed on cruise DY130.

Below are the graphs generated in near-real time from data gathered at PAP and transmitted via iridium servers.

Click on an image to see a larger version.

These graphs have basic QC applied to remove spikes and invalid data. There are also additional vicarious calibrations applied to the BGC sensors. The raw data these graphs are derived from can be access via the NOC anonymous FTP server


Other data are being collected at the site but are not transmitted in near-real time.

After recovery, data are archived at the British Oceanographic Data Centre (BODC) and can be accessed at: BODC PAP Collection

We are also starting to make these delayed mode data available through the BODC ERDDAP service. To see full time series, makes sure to set the 'start time' to the earliest possible date (it defaults to only show the latest data)


Click here to view engineering graphs
Date and time of receipt of latest data

Oceanographic instruments on buoy, operating in near real time

Temperature and Salinity

Surface Temperature

Graph of Surface Temperature - all microcats

Surface Salinity

Graph of Surface Salinity - all microcats

Surface Sigma-t

Graph of Surface Sigma-t - all microcats

30m Temperature

Graph of 30m Temperature - all microcats

30m Salinity

Graph of 30m Salinity - all microcats

30m Sigma-t

Graph of 30m Sigma-t - all microcats


Graph of Temperatures from oxygen microcats


Graph of Salinity from oxygen microcats


Graph of Sigma-t from oxygen microcats


Seabird Oxygen

Graph of Oxygen at surface

Aanderaa Oxygen (Surface)

Aanderaa sensor Oxygen at surface

Aanderaa Oxygen (30m)

Aanderaa sensor Oxygen at 30m

Carbon Dioxide

Carbon Dioxide at 1m

Carbon Dioxide

Carbon Dioxide at 30m

Carbon Dioxide on sensor frame

Carbon Dioxide in air

Carbon Dioxide in air

Pro-oceanus GTD-Pro at 30m

Pro-Oceanus TDGP at 30m


Chlorophyll-a Wetlabs

Chlorophyll-a : Wetlabs

Fluorescence Cyclops

Fluorescence Cyclops


SUNA Nitrate at 30m

SUNA Nitrate at 30m

Surface Irradiance

Irradiance 1

Irradiance 1 (30m)

Irradiance 3

Irradiance 3 (surface)

MetOffice UK Meteorological Data

PAP is part of the MetOffice network of weather buoys, click here to view the full network.

Air Pressure

Met Office Air Pressure


Met Office Humidity data


Met Office Temperatures plotted with NCEP

Wind Speed

Met Office Wind data

Wind Vectors

Met Office Wind data as arrows

Mooring Position

Mooring Position

Mooring position

Last 7 days Track

Last 7 days Mooring track

Surface Pressure

Graph of pressures from surface

Mooring Position from Met Iridium Transmitter

Mooring position

PAP1 mooring Contact at NOCS, UK
Biogeochemical sensors Dr Sue Hartman

Seafloor (4850 m)

Seafloor samples have been taken at the PAP site since 1985. The following techniques are used to observe change over time:

Method Used for Contact at NOCS, UK
Trawl Megafaunal species abundance,  diversity and biomass Dr Brian Bett, Dr Jen Durden
Sea Floor Photography AUV and towed camera photography for spatial studies.  High resolution time-lapse photography (8 hours) in fixed location Dr Brian Bett, Dr Jen Durden
Sediment Cores Megacorer (a type of multiple corer) for infauna and geochemistry Dr Brian Bett, Dr Jen Durden
Baited Traps Time series observation of scavenging assemblage. Data available from OBIS Dr Tammy Horton