Expression of interest for the supply of automatic weather stations and automatic rainfall stations to the south african weather service for a period of a 12-month inter-comparison testbed project.

Supply and delivery of eddy covariance equipment for the measurement of the exchange of carbon dioxide, water vapour and methane, as well as components, spares and technical training and support for a period of five years to saeon node and research infrastructure offices.

Appointment of a service provider to supply and deliver portable trace greenhouse gas (ghg) analyzer/s that must have a self-powered survey chamber capable of computing real-time gas fluxes of carbon dioxide, methane and nitrous oxide measurements in field with a two-year warranty, for the south african environmental observation network (saeon), in gqeberha (port elizabeth).

Appointment of a service provider to provide solar radiation measuring equipment to the south african weather service.

Automated diffraction-grated spectrometer for measurements of column ozone (o3) and sulphur dioxide (so2) and high resolution ultraviolet radiation

Supply and delivery of five (5) sets of eddy covariance instrumentation with service support, spares, consumables and replacement parts as well as spares, consumables and replacement parts for nine (9) existing eddy covariance systems when required over five (5) years to saeon node offices.