Nitrous Oxide (N2O) Concentration 
   from the San Pedro Time-series (SPOT) station 
  PI: Alyson Santoro (UCSB) 
  Co-PI: Douglas G. Capone (USC) 
  Version history: 
   2020-11-06. (v2; current) - replaced with version 2 which corrects errors and adds standard deviation. 
   2019-08-06. (v1) - version 1 data.