ATom data management plan: Data products and submission requirements Katja Drdla (katja.drdla@nasa.gov) is the ATom data manager Schematic showing ATom data flows Observed data and model products will be submitted in ICARTT or netCDF formats www-air.larc.nasa.gov/missions/etc/ESDS-RFC-019-v1.1_0.pdf https://www.unidata.ucar.edu/software/netcdf/docs/netcdf.html

ATom data management plan: Data products and submission requirements Measured data are expected from launch to landing • please apprise if this is not feasible for your instrument Preliminary (Level 1) instrument data will be posted to the Ames archive within 24 hours of landing. • data exchange in remote locations will go through a computer traveling with the team to avoid overloading capabilities. Details being worked out. • ICARTT format required for instrument data; necessary metadata in header • preliminary data used to assess performance and readiness for next flight • quick-look merged data products will be generated and posted promptly. – Likewise quick-look photochemical calculations, details being worked out. • no 24-hour deadline for WAS, SAGA filters, and perhaps PANTHER GC data – others? – please apprise when these data will become available

ATom data management plan: Data products and submission requirements Final (Level 2) instrument data posted to the Ames archive within 7 months of the end of each deployment and will be accessible to the public. • Relaxed if conflicting with a subsequent ATom deployment Derived (Level 3 and 4) science products posted to the Ames archive within 9 months of end of each deployment and will be accessible to the public. • The Level 3 product is the full chemistry description of air masses sampled on a 500 m (vertical) by 8 km (along track) grid. Required for mission success criteria. • Level 4 derived products include profiles and joint probability statistics of Tier 1 measured species (Table 4.2-1 of the proposal) as a function of altitude, a variety of time- merged products, integrated columns, altitude-vs-latitude (“curtain”) plots, and chemistry-climate model output including observationally constrained production and loss rates for CH4 and O3, and aerosol evolution.

ATom data management plan: Data archiving When ATom concludes in 2020, all data products, scientific algorithm software, coefficients, and ancillary data used to generate these products, are required to be posted to the NASA Langley Distributed Active Archive Center (DAAC) • ATom data sets from the first deployment onwards will receive a unique and permanent DOI and will be citable in publications. • At some time after 2018, the ATom data sets will be transferred to the Langley DAAC, but that transfer should be transparent to us • This transfer will/should include full documentation, algorithms, and software, including the raw (Level 0) instrument data • Data sets can be updated after transfer to the DAAC, with assurance that only one data version is available at any one time. - please let me know how much storage space you estimate this will require

ATom data management plan: Data policy PIs can of course share their own measurements with anyone they are collaborating with, but they cannot share any other ATom data outside the team until the public release. PIs and instrument team members responsible for generating an essential measurement or data product must be offered participation as co-author in manuscripts. The final data (including Level 2, 3, and 4 products) are open to public use via the ESPO archive upon posting (7 or 9 months post deployment), in full compliance with NASA policy.