The National Academies of Sciences, Engineering and Medicine (NASEM) 2017 Decadal Survey, “Thriving on Our Changing Planet: A Decadal Strategy for Earth Observations from Space,” identified five designated foundational observations to be implemented in the next decade. The ACCP Study is concerned with two of these Designated Observables (DO): 1) Aerosols and 2) Clouds, Convection and Precipitation (CCP). The primary goal of the ACCP study is to deﬁne science objectives for these DOs and explore observing system architectures capable of addressing these science objectives. This study leverages results from historical studies and investments such as the Aerosol-Cloud-ocean Ecosystems (ACE) study, those from existing and proposed Earth Venture concepts, analyses already conducted on data from past ﬁeld experiments, and recent advances of modeling systems and Observing System Simulation Experiments (OSSEs).
Given the synergisms among Aerosols, Clouds Convection and Precipitation in the Earth system, the ACCP Study team recognized the science merit in exploring a combined measurement system that addresses both Aerosol and CCP science questions, and enables an assessment of aerosol effects on clouds and precipitation and vice-versa. Based on the 2017 Decadal Survey, the ACCP Study focuses on the following measurements and broad scientific goals:
More specifically, the ACCP Study focuses on science goals that trace back to most- and very-important Science Goals articulated in the 2017 Decadal Survey:
The ACCP Study will examine the linkages among aerosols, clouds, convection and precipitation by creating mission architectures that address Aerosol and CCP objectives simultaneously.