Warp (TH1) NMMP SmartBuoy, 51 31'.5N - 001 01'.9E, 30/11/2000
These deployments form part of the National
Marine Monitoring Programme (NMMP) funded by the UK Government's
Department for Environment, Food and Rural Affairs (Defra)
A SmartBuoy has been deployed at a site in the outer Thames
estuary in approximately 15 m water depth to observe the dynamics
of plant nutrients and the growth of phytoplankton.
Measurements of plant nutrient concentrations are derived from
two SmartBuoy instruments. Hourly measurements of nitrate
concentration are made by the NAS2E in situ nutrient
analyser, while lower frequency (daily) measurements of nitrate and
silicate concentration are derived from laboratory analysis of
water samples collected and preserved by the AquaMonitor.
Phytoplankton concentration (biomass) is measured four times per
hour using a fluorometer measuring chlorophyll fluorescence.
To aid interpretation of these data, SmartBuoy also takes
measurements of conductivity, temperature, suspended sediment
concentration, light penetration and oxygen levels.