how to download air quality data in csv format

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bhakti_pimpale
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how to download air quality data in csv format

by bhakti_pimpale » Wed Oct 20, 2021 6:38 am America/New_York

I need to download air quality data of Deonar Mumbai region in csv format for last 5 years, can you please guide me?

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Re: how to download air quality data in csv format

by GES DISC - jimacker » Wed Oct 20, 2021 2:25 pm America/New_York

Hello,

What air quality data variables are you seeking to analyze?

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Re: how to download air quality data in csv format

by bhakti_pimpale » Thu Oct 21, 2021 5:26 am America/New_York

SO2,CO,O3,NO2,PM2.5,PM10
Need above parameters for indian region Deonar dumping ground Mumbai (19.0714° N, 72.9298° E)

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Re: how to download air quality data in csv format

by GES DISC - jimacker » Thu Oct 21, 2021 9:19 pm America/New_York

If you wish to create a time-series of these data variables for a very small area around the indicated geographic location, you can use the Giovanni service (https://giovanni.gsfc.nasa.gov) to generate each time-series plot, and then download the data in CSV format. If you wish to make maps, we have a procedure which uses the free NASA software Panoply and MS Excel which can provide the data as lat-lon-data value CSV.

Giovanni does not have PM2.5 or PM10, but does have the other data variables you requested. However, the remotely sensed SO2 variable is primarily volcanic and does not provide surface values, but the MERRA-2 model does.

Please reply for further assistance.

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Re: how to download air quality data in csv format

by bhakti_pimpale » Mon Nov 08, 2021 7:07 am America/New_York

How to convert 1/cm^2 to ppb or Microgram/m^3 ?
have downloaded NO2 data from Giovanni need to convert it into ppb or microgram/m3.

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Re: how to download air quality data in csv format

by GES DISC - jimacker » Mon Nov 08, 2021 12:13 pm America/New_York

I will submit your query to our data and subject matter experts today.

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Re: how to download air quality data in csv format

by GES DISC - jimacker » Mon Nov 08, 2021 3:56 pm America/New_York

We are correcting the units for this data variable; they should be molecules/cm^2. It is not possible to convert these to either ppbv or microgram/m3, but these units can be converted to Dobson units (DU).

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