International Cooperation in Global Satellite Climate Monitoring

A lack of consensus on the requirements for adequate monitoring of climate change by satellites makes it difficult to identify gaps in the collection of climate-relevant data and prevents national policy makers from taking into account global climate monitoring needs when planning the development of future satellites. Multiple international organizations undertake efforts to identify the high-level/system-level and technical requirements of such a system, and each of these efforts reveals gaps in global climate monitoring capabilities. These efforts require further coordination to achieve global consensus on the highest-priority monitoring needs. With regard to high-level requirements, this will require organizations to align and coordinate their efforts, considering both the most important types of measurements and the most efficient physical architecture for collection. Efforts at identifying detailed technical requirements for climate monitoring are duplicative and need to be consolidated. Coordination at the system level and consolidation at the technical level should be followed by prioritizing climate monitoring needs, allowing policy makers to invest in satellite systems that will realize the greatest contribution to global climate monitoring.