Continuous monitoring of the Earth through multiple satellite lifetimes is one of the critical ways in which scientists and decision-makers can understand our environment on a global basis. To address severe events, such as tropical cyclones as well as to monitor long term changes on time scales from hours to decades, planned continuity efforts are necessary. While for some observables, including weather, total column ozone, total solar irradiance, sea level and land imaging, an effective commitment is in place for continuity, for many important observables, continuity is not secured. For many other observables, including those characterizing the global state of the Earth’s climate and those providing information on near-term environmental risks outside of weather, planning, programmatic and funding challenges will likely result in gaps. Individual studies on the need, benefits, challenges or scientific approaches to continuity in Earth observations are encouraged. Studies from the international community, as well as from early career and under-represented groups are particularly welcome.


