Chapter 3.5 Developing the WOCE global data system

Abstract

This chapter provides an overview of the data handling by World Ocean Circulation Experiment (WOCE). It describes the objectives of the WOCE data system, the reasoning for developing the infrastructure as it is, and the data policies and practices used. The idea of data streams and the functional elements necessary to manage them are also presented. The chapter presents the future ambitions and directions for delivery of WOCE data products and transition to future programmes. WOCE data activities fall largely in three areas—namely, (1) assembly and distribution of data, (2) production of data products, and (3) participation in analysis or interpretation of the data sets to understand ocean processes. The initial framework for a WOCE data system was developed to assist in these functions. At least one data assembly centre (DAC) exists for each type of data. Their primary functions are to assemble data sets, subject them to quality control, and ensure distribution. The collection and quality review processes are different for each data stream; however, each DAC maintains an updated and public inventory of data received and also documents its quality control procedures. The DACs take an active role in tracking data quality, including contacting data providers to confirm suspected reasons for problematic data. This feedback leads to improved observation systems, procedures and review criteria.