AMT23 (JR20131005) HPLC pigment measurements from CTD bottle samples.

This dataset consists of 2916 measurements of HPLC pigment concentrations made on samples collected during the Atlantic Meridional Transect programme cruise 23 (AMT23 JR20131005) between 09th October and 06th November 2013. The cruise was funded by NERC National Capability. The cruise track between UK and the Falkland Islands passed through both north and south Atlantic gyres. Samples were collected on a daily basis at 6 depths in the upper 300m using a CTD rosette with 24 x 20l OTE (Ocean Test Equipment) bottles. Samples were filtered through GF/F filters and the filters were flash frozen in liquid nitrogen before being stored onboard the ship at -80 degC. Samples were analysed after the cruise using a method based on Van Heukelem and Thomas, 2001. This dataset contributes to the AMT time-series of core oceanographic measurements along an north-south transect of the Atlantic Ocean. N.B. These data are a snapshot of profiles and associated documentation for sites and period stated held within the National Oceanographic Database as at the Dataset Publication Date.