Atmospheric simulation
chambers continue to be indispensable tools
for research in the atmospheric sciences. Insights from chamber studies
are integrated into atmospheric chemical transport models, which are
used for science-informed policy decisions. However, a centralized
data management and access infrastructure for their scientific products
had not been available in the United States and many parts of the
world. ICARUS (Integrated Chamber Atmospheric data Repository for
Unified Science) is an open access, searchable, web-based infrastructure
for storing, sharing, discovering, and utilizing atmospheric chamber
data [https://icarus.ucdavis.edu]. ICARUS has two parts: a data intake portal and a search and discovery
portal. Data in ICARUS are curated, uniform, interactive, indexed
on popular search engines, mirrored by other repositories, version-tracked,
vocabulary-controlled, and citable. ICARUS hosts both legacy data
and new data in compliance with open access data mandates. Targeted
data discovery is available based on key experimental parameters,
including organic reactants and mixtures that are managed using the
PubChem chemical database, oxidant information, nitrogen oxide (NOx)
content, alkylperoxy radical (RO2) fate, seed particle
information, environmental conditions, and reaction categories. A
discipline-specific repository such as ICARUS with high amounts of
metadata works to support the evaluation and revision of atmospheric
model mechanisms, intercomparison of data and models, and the development
of new model frameworks that can have more predictive power in the
current and future atmosphere. The open accessibility and interactive
nature of ICARUS data may also be useful for teaching, data mining,
and training machine learning models.