Some notebooks for S5P-LNO2.

Zhang et al., Spaceborne observations of lightning NO2 in the Arctic, Environ. Sci. Technol.

Input data are all saved in the zenodo Dataset called Dataset for "Spaceborne observations of lightning NO2 in the Arctic".

Users can download the compressed file, extract it in the root directory, and rename to data. Then, all the Jupyter Notebooks should work well.

• workflow.ipynb
  • Overview of the process for selecting lightning NO2 pixels from TROPOMI (Fig. 1 and Fig. S4)
• lightning_distribution.ipynb
  • Lightning distribution recorded by OTD and GLD360 (Fig. 2 and S2)
  • Time series of Arctic lightning rates (Fig. S7)
  • Time series of Arctic CAPE and AOD (Fig. S8)
  • GLD360 stroke counts, LNO2 emissions, and mean CAPE (Table S1)
• nox_emission.ipynb
  • Lightning and anthropogenic NO2 column densities (Fig. 3)
  • Lightning and anthropogenic NOx emissions (Fig. 6)
• lightning_no2_production.ipynb
  • Distribution of lightning and lightning NO2 productions (Fig. 4)
  • Relationship between production and stroke rate over different regions (Fig. 5)
  • Top 10 lightning NO2 production efficiencies (Table S3)
• lnox_profile_fit.ipynb
  • Fit Gaussian distributions to lightning NOx profiles (Fig. S1)
• large_lnox.ipynb
  • Case of the largest lightning NO2 column (Fig. S5)
• cloud_pressure.ipynb
  • Histogram of TROPOMI cloud pressure and tropopause pressure (Fig. S3)
• no2_above_cloud.ipynb
  • Histograms of TROPOMI cloud pressure and above-cloud NO2 column (Fig. S6)
• no2_lifetime.ipynb
  • Lightning NO2 lifetime estimation (Table S2)
• pe_uncertainty.ipynb
  • Uncertainty of estimated lightning NO2 production efficiency (Table S4)

• TM5_LNO2.ipynb

  • Check whether lightning NO2 is included in TM5 a priori profile

• bAMF_pressure.ipynb

  • Detailed of calculation of box-AMF

• cluster_stroke_to_flash.ipynb

  • Cluster lightning strokes to flashes

• lightning_in_swaths.ipynb

  • Method of checking the number of lightning points within TROPOMI swath