This readme.txt file was generated on 2017/11/09 by Laurence Y. Yeung


-------------------
GENERAL INFORMATION
-------------------


1. Title of Dataset: Isotopic and modeling data that support the publication L. Y. Yeung, S. Li, I. E. Kohl, J. A. Haslun, N. E. Ostrom, H. Hu, T. P. Fischer, E. A. Schauble, E. D. Young, Extreme enrichment in atmospheric 15N15N. Sci. Adv. 3, eaao6741 (2017). doi: 10.1126/sciadv.aao6741 


2. Author Information


  Principal Investigator Contact Information
        Name: Laurence Y. Yeung
           Institution: Rice University
           Address: Department of Earth, Environmental and Planetary Sciences MS-126, 6100 Main Street, Houston, TX 77005
           Email: lyeung@rice.edu


  Associate or Co-investigator Contact Information
        Name:Edward D. Young
           Institution: University of California-Los Angeles
           Address: Department of Earth, Planetary, and Space Sciences, 595 Charles E. Young Drive East, Los Angeles, CA 90095
           Email: eyoung@epss.ucla.edu


3. Date of data collection (single date, range, approximate date) 2015/06 - 2017/07


4. Geographic location of data collection (where was data collected?): Los Angeles, CA; Houston, TX; field sites as described in the associated publication


5. Information about funding sources that supported the collection of the data: National Science Foundation (OCE-1533501, EAR-1349182, EAR-1348935, EAR-1530306), Deep Carbon Observatory, Department of Energy (BER DE-FC02-07ER64494)




--------------------------
SHARING/ACCESS INFORMATION
-------------------------- 


1. Licenses/restrictions placed on the data: CC BY-NC


2. Links to publications that cite or use the data: L. Y. Yeung, S. Li, I. E. Kohl, J. A. Haslun, N. E. Ostrom, H. Hu, T. P. Fischer, E. A. Schauble, E. D. Young, Extreme enrichment in atmospheric 15N15N. Sci. Adv. 3, eaao6741 (2017). doi: 10.1126/sciadv.aao6741 


3. Links to other publicly accessible locations of the data: http://doi.org/10.1126/sciadv.aao6741


4. Links/relationships to ancillary data sets: None


5. Was data derived from another source? Some
           If yes, list source(s): Community Earth System Model version 1.0 (http://www.earthsystemgrid.org) for Thermosphereresults.nc


6. Recommended citation for the data: L. Y. Yeung, S. Li, I. E. Kohl, J. A. Haslun, N. E. Ostrom, H. Hu, T. P. Fischer, E. A. Schauble, E. D. Young, Extreme enrichment in atmospheric 15N15N. Sci. Adv. 3, eaao6741 (2017). doi: 10.1126/sciadv.aao6741 




---------------------
DATA & FILE OVERVIEW
---------------------


1. File List
   A. Filename: Tables-SciAdv-S1.csv       
      Short description: Isotopic data for air samples and heated gases       
       
   B. Filename: Tables-SciAdv-S2.csv        
      Short description: Isotopic data for biological experiments        
        
   C. Filename: Tables-SciAdv-S3.csv       
      Short description: Data for electrolysis experiments

   D. Filename: Tables-SciAdv-S4.csv       
      Short description: Reactions used in the model of the electrolysis experiments

   E. Filename: Tables-SciAdv-S5.csv       
      Short description: Data for volcanic N2 samples and end members used to derive mixing fractions fRS and fmantle

   F. Filename: Tables-SciAdv-S6.csv       
      Short description: Results from diffusion experiment for verifying instrumental accuracy

   G. Filename: Thermosphereresults.nc       
      Short description: Species concentrations and reaction rates relevant to N2 chemistry derived from the Whole Atmosphere Community Climate Model with thermospere and ionosphere extension (WACCM-X), data set f.e10.FWX.f19_f19.control.001, for model year 2001. Grid spacing and pressure levels are standard quantities used for the National Center for Atmospheric Research Community Earth System Models. Assumptions used when calculating reaction rates are detailed in the related paper (Yeung et al. 2017).

2. Relationship between files: All data support the conclusions in the related publication.        

3. Additional related data collected that was not included in the current data package: None

4. Are there multiple versions of the dataset? No