The TPOS 2020 Project is evaluating and where necessary will implement changes to the Tropical Pacific Observing System. The project's aim is to ensure and improve the utility and sustainability of the Tropical Pacific Observing System. These deliberations must be based on the current understanding of tropical Pacific science and on anticipation of the needs of observing system stakeholders in the coming decades. To this end, the TPOS 2020 Biogeochemistry Task Team has put together a set of questions specifically about the biogeochemistry observational needs in the TPOS backbone design. The assessment of tradeoffs in the TPOS design will depend in part on answers to these questions.

Input to the Online Questionnaire before 15 January 2016 would be very appreciated!

For your information, after the questionnaire you will find a set of science questions developed by the BGC TT that are guiding the strategy for the inclusion of biogeochemical observations on a future observing system. Insights of the broader biogeochemical community are very much appreciated in the TPOS 2020 design. Please consider these questions in terms of the observing system that will be needed for 2020-2040.