Earthdata Forum

For my research, I need to use TROPOMI NO₂ and HCHO data for Yangon City in Myanmar, covering the period from 2019 to the present. I've used Earthdata to download around 2,000 granules. I'm curious if it's normal for the downloading process to take a significant amount of time for this volume of data.

Additionally, I need to convert the NetCDF (.nc) files into CSV format for further analysis. Could someone guide me on the best way to batch convert these files into a readable CSV format?

Thank you for your assistance!
https://search.earthdata.nasa.gov/search/granules?p=C1918210023-GES_DISC&pg[0][v]=f&pg[0][gsk]=-start_date&g=G2828585164-GES_DISC&q=TROPOMI%20HCHO&polygon[0]=95.56348%2C17.35341%2C95.73047%2C16.44805%2C96.04248%2C16.2283%2C96.34131%2C16.47002%2C96.65771%2C16.47442%2C96.87744%2C16.8392%2C96.69727%2C17.03697%2C96.47314%2C17.04137%2C96.37207%2C17.33583%2C96.04688%2C17.86323%2C95.56348%2C17.35341&qt=2019-01-01T00%3A00%3A00.000Z%2C2023-12-31T23%3A59%3A59.999Z&fi=TROPOMI&as[instrument][0]=TROPOMI&tl=1731564033.906!3!!&lat=18.35133054267527&long=93.19921875&zoom=5

Question 1) Is it normal for the downloading process to take a significant amount of time for this volume of data?
Answer: Yes, it is. This file is about 600 MB in each granule. Thus, the request for daily data from 2019 to the 2013 is enormous. It is about 1 TB of data for 5-year data!

Question 2) I need to convert the NetCDF (.nc) files into CSV format for further analysis. Could someone guide me through batch-converting these files into readable CSV format?
Answer: The original L2 files are hierarchical satellite granule files in netCDF format, and they are large, at 600 MB per file. Thus, I suggest reading the NetCDF file and then writing the result into a CSV file. Here is a link about converting NetCDF to CSV (https://confluence.ecmwf.int/display/CKB/How+to+convert+NetCDF+to+CSV).