Smoothed chlorophyll a profiles during RV Tangaroa cruise TAN1810 to the Chatham Rise, New Zealand

Between 11 and 21 vertical CTD profiles were recorded in the top 300 m of the water column in five areas over the Chatham Rise, New Zealand in October and November 2018. Raw fluorscence data were converted to chlorophyll a concentrations using calibration curves and subsequently smoothed using modelling tools for every m in each area.