------------------- GENERAL INFORMATION ------------------- 1. Title of Dataset: - CrIS ROCR Isoprene Retrievals used for Mapping Atmospheric Oxidation 2. Author Information Principal Investigator Contact Information Name: Dylan Millet Institution: University of Minnesota Email: dbm@umn.edu Associate or Co-investigator Contact Information Name: Joshua Shutter Institution: University of Minnesota Email: shutt038@umn.edu Associate or Co-investigator Contact Information Name: Kelley Wells Institution: University of Minnesota Email: kcw@umn.edu 3. Date of data collection: - February 2012-December 2020 4. Geographic location of data collection (where was data collected?): - Global 5. Information about funding sources that supported the collection of the data: - This work was supported by the NASA Aura Science Team (Grant No. 80NSSC20K0927) and the Minnesota Supercomputing Institute. -------------------------- SHARING/ACCESS INFORMATION -------------------------- 1. Licenses/restrictions placed on the data: - Data provided here are available for use on a collaborative basis. We request that you contact us if using the data, and prior to including it in any presentations or publication. (Attribution-NonCommercial-ShareAlike 4.0 International - https://creativecommons.org/licenses/by-nc-sa/4.0/deed) 2. Links to publications that cite or use the data: - Wells, K. C., Millet, D. B., Payne, V. H., Vigouroux, C., Aquino, C. A. B. Aquino, De Mazière, M., de Gouw, J. A., Graus, M., Kurosu, T., Warneke, C. & Wisthaler, A. (2022). Next-generation isoprene measurements from space: Detecting daily variability at high resolution. J. Geophys. Res. https://doi.org/10.1029/2021JD036181 - Shutter, J. D., Millet, D. B., Wells, K. C., Payne, V. H., Nowlan, C. R., González Abad, G. (2024). Interannual changes in atmospheric oxidation over forests determined from space. In revision. 3. Links to related datasets: Wells, K. C. and Millet, D. B. (2022). ROCR Isoprene Retrievals from the CrIS Satellite Sensor. Retrieved from the Data Repository for the University of Minnesota, https://doi.org/10.13020/5n0j-wx73. (This data was developed using the same methodology, but covers different time periods and geographic regions.) 4. Was data derived from another source? - The CrIS L1B data associated with these retrievals can be found publicly here: https://snpp-sounder.gesdisc.eosdis.nasa.gov/data/SNPP_Sounder_Level1/SNPPCrISL1BNSR.2/ The data referred on the GES DISC is the underlying raw measurements from which the dataset used here was derived. Specifically, the L1B data refers to radiance measurements from the satellite instrument, which is used to convert to atmospheric concentrations of a particular trace gas. 5. Recommended citation for the data: Shutter, Joshua D.; Millet, Dylan B.; Wells, Kelley C. (2024). CrIS ROCR Isoprene Retrievals used for Mapping Atmospheric Oxidation. Retrieved from the Data Repository for the University of Minnesota, https://doi.org/10.13020/9m63-j327. --------------------- DATA & FILE OVERVIEW --------------------- 1. File List A. Filename: EastAmazonia_CrIS_ISOP_daily_201202-202012.nc Short description: This file contains daily CrIS isoprene over East Amazonia [-13 to 0 latitude, -55 to -35.625 longitude] from 2012-2020. B. Filename: NewGuinea_CrIS_ISOP_daily_201202-202012.nc Short description: This file contains daily CrIS isoprene over New Guinea [-9.5 to -1.5 latitude, 135 to 146.25 longitude] from 2012-2020. C. Filename: SEUSA_CrIS_ISOP_daily_201202-202012.nc Short description: This file contains daily CrIS isoprene over the Southeast United States [31 to 39 latitude, -95 to -76.25 longitude] from 2012-2020. 2. Are there multiple versions of the dataset? No -------------------------- METHODOLOGICAL INFORMATION -------------------------- 1. Description of methods used for collection/generation of data: Isoprene columns derived from CrIS L1B radiances using a machine learning based retrieval algorithm 2. Methods for processing the data: These data were calculated as long-term monthly means or daily values averaged over specific regions. 3. Instrument- or software-specific information needed to interpret the data: CrIS is a Fourier transform spectrometer onboard the Suomi-NPP satellite, flying in a sun-synchronous orbit with 1330 LT daytime equator overpass. Information on the CrIS sensor is available from: Han, Y. et al. Suomi NPP CrIS measurements, sensor data record algorithm, calibration and validation activities, and record data quality. J. Geophys. Res.-Atmos. 118, 12734-12748, doi:10.1002/2013jd020344 (2013). 4. Describe any quality-assurance procedures performed on the data: Data were screened for artifacts in snow/ice conditions using a temperature threshold of 273 K. ----------------------------------------- DATA-SPECIFIC INFORMATION FOR: EastAmazonia_CrIS_ISOP_daily_201202-202012.nc ----------------------------------------- 1. Number of variables: 5 2. Number of cases/rows: 3256 x 27 x 32 3. Missing data codes: NaN 4. Variable List A. Name: Isop Description: CrIS retrieved isoprene column density molec/cm^2 B. Name: Ndata Description: Number of CrIS data points in each grid box C. Name: lat Description: Latitude (degrees north) D. Name: lon Description: Longitude (degrees east) E. Name: time Description: Time (days since 2012-02-01) ----------------------------------------- DATA-SPECIFIC INFORMATION FOR: NewGuinea_CrIS_ISOP_daily_201202-202012.nc ----------------------------------------- 1. Number of variables: 5 2. Number of cases/rows: 3256 x 17 x 19 3. Missing data codes: NaN 4. Variable List A. Name: Isop Description: CrIS retrieved isoprene column density molec/cm^2 B. Name: Ndata Description: Number of CrIS data points in each grid box C. Name: lat Description: Latitude (degrees north) D. Name: lon Description: Longitude (degrees east) E. Name: time Description: Time (days since 2012-02-01) ----------------------------------------- DATA-SPECIFIC INFORMATION FOR: SEUSA_CrIS_ISOP_daily_201202-202012.nc ----------------------------------------- 1. Number of variables: 5 2. Number of cases/rows: 3256 x 17 x 31 3. Missing data codes: NaN 4. Variable List A. Name: Isop Description: CrIS retrieved isoprene column density molec/cm^2 B. Name: Ndata Description: Number of CrIS data points in each grid box C. Name: lat Description: Latitude (degrees north) D. Name: lon Description: Longitude (degrees east) E. Name: time Description: Time (days since 2012-02-01)