Earth Surface and Interior

ESI requests the following types of research investigations this year. Pending sufficient availability of funds, it is NASA's intent to update these foci and compete this element on an annual basis to best address scientific and programmatic priorities: 1. Innovative Solid-Earth Science: Studies addressing the seven challenges from NASA's Challenges and Opportunities for Research in ESI (CORE) Report (2016) (http://go.nasa.gov/2hmZLQO), or the ESI science objectives identified in the National Academy of Sciences (NAS) Decadal Survey, Thriving on Our Changing Planet: A Decadal Strategy for Earth Observation from Space (2018) (https://www.nap.edu/catalog/24938). 1.1. Hypothesis-Driven Research: Innovative remote-sensing research focused on resolving hypotheses related to ESI science objectives. 1.2. Enabling Capabilities: Efforts that produce innovative community tools or data products essential to advancing the ESI science objectives. 2. Strengthening ESI Community Knowledge and Skills: New ESI-relevant activities that advance graduate student and/or postdoctoral researcher capabilities and A.23-2 broaden community awareness of the ESI mission. Prospective proposers must contact the program point of contact to discuss the relevance of their proposal.