PAP April 2016

The PAP1 observatory hosts a suite of meteorological, physical and biogeochemical sensors. The most current data are available below from the deployment in July 2015. The research ship RRS Discovery cruise DY050 serviced the mooring in April 2016.

Image taken by bathysnap of seafloor at PAP site in 2010

We will add the delayed mode data as soon as it is quality checked.

A diverse range of Essential Climate variables are measured and sampled at the PAP site from the atmosphere and surface ocean to the seafloor. Seafloor sampling includes trawling, coring, towed camera systems from a research ship and time-lapse photography. Since 2002 many of the upper ocean measurements (0-1000m) have been transmitted in near real-time.

Downloadable Data

To download data in ASCII format click here.

To download data in OceanSITES Netcdf format click here.

Below are the graphs currently being generated in near-real time from data being gathered at PAP. Click on an image to see a larger version.

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

Oceanographic instruments on keel and at 30m on frame, operating in near real time


Graph of Temperatures at various depths


Graph of Salinity at various depths


Graph of Sigma-t at various depths

Seabird Oxygen

Graph of Oxygen at various depths

Aanderaa Oxygen

Aanderaa Oxygen

SP101-Nm pH at 1m

SP101-Nm pH at 1m

Carbon Dioxide at 1m

Carbon Dioxide on keel

Carbon Dioxide at 30m

Carbon Dioxide on sensor frame

Chlorophyll-a Wetlabs

Chlorophyll-a : Wetlabs

Fluorescence Cyclops

Fluorescence Cyclops

SUNA Nitrate at 30m

SUNA Nitrate at 30m

PO4 Wetlabs

PO4 : Wetlabs

PO4 Wetlabs

PO4 : Wetlabs

Satlantic SeaFET pH

Satlantic Internal pH

Internal pH

Satlantic Internal pH

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/Direction

Met Office Wind data

Wind Vectors

Met Office Wind data as arrows

Wave Height

Met Office Wave data

Wave Peak Period

Met Office Wave data

Wave Vectors

Met Office wave data

Sea Current Vectors

Sea Current

Sea Current Speed/Direction

Sea Current

Sea Current

Sea Current

Irradiance 1

Irradiance 1 (30m)

Irradiance 2

Irradiance 2 (30m)

Irradiance 3

Irradiance 3 (surface)

Mooring Position

Mooring position

Last 7 days Track

Last 7 days Mooring track

Seafloor (4800 m)

Seafloor samples have been taken at the PAP site for over 20 years. Many methods can only be achieved from research ships but some (time-lapse camera) is autonomous for high resolution long-term sampling. In 2010, as part of the MODOO demonstration mission a seafloor lander with physical and biogeochemical sensors will be deployed on the seafloor. For the first time some datasets will be transmitted in near real-time from the abyssal depths. New variables include: CTD + Backscatter; ADCP (two-way, re-programmable for water profiling as well as burst sampling); Seismometer (two-way, retrieval of selected time period – 1 minute – in the past, e.g., seismic event) and Bottom Pressure Sensor; Sediment trap (two-way, re-programmable for change sampling interval); Optode; Digital Camera; Stand-alone hydrophone.

Method Used for Contact at NOCS, UK
Trawls Megafauna (Species diversity, abundance and biomass Dr David Billett
WASP Wide-Angle Seabed Photography towed camera system Dr Brian Bett
Cores Boxcores, Mega- and Multicores for fauna and geochemistry Prof. Andrew Gooday
Bathysnap Time-lapse photography Dr Brian Bett