To investigate the implementation of AGU’s data and software sharing policies, this study selected Earth and Space Science (ESS) as the research subject. AGU currently publishes 24 high-impact peer-reviewed journals, including 12 fully OA journals and 12 hybrid OA journals. ESS is a fully OA journal that publishes original research in Earth science, planetary science, and space science. It was selected for two reasons. First, its launch year essentially aligns with the implementation of the AGU Publications Data Policy. Second, the journal particular focuses on research outputs such as key datasets, observational results, research methods, sensors, and algorithms. This study investigated papers published in ESS between 2021 and 2025, covering a total of 1,421 papers (excluding Issue Information). The data and software sharing practices of ESS were assessed through a manual review of Data Availability Statements, Software Availability Statements, data citations, and software citations. The investigation focused on the following aspects: Availability statements: whether the availability statements of each paper includes information on the data, code, and software tools used or generated in the research process. Data citation: whether the datasets used or generated in the study were declared and cited in the availability statements, reference list, and data-related sections of the manuscript. Software citation: whether the software tools used in the study were declared and cited in the availability statements, reference list, and methods section of the manuscript. Each article was manually reviewed and coded according to predefined survey indicators. A binary coding scheme was applied, where “1” indicates the presence of a given indicator and “0” indicates its absence.