[R-sig-Geo] Extract Lightning Flash Time series data

[sownal chand]

Thanks Michael


But i will try out your approach and let see how it goes.

Kind regards
Sownalc

On Sun, Sep 11, 2022, 16:51 Michael Sumner <mdsumner using gmail.com> wrote:

> I don't understand this file structure yet, but you might try tidync:
>
> library(tidync)
> ## open the file and get a summary of all vars and the dimensions they use
> (nc <- tidync::tidync("TRMM_LIS.nc"))
>
> See how viewtime_lat, viewtime_lon (and others) exist on the grid
> identified by "D0" (other grids include multiple dims and so have
> identifiers like "D1,D2" - this concept doesn't exist in NetCDF itself but
> tidync wanted to group variables by the dims they use).
>
> The grid "D0" is not active by default, so you can do
>
> nc |> activate("D0")
>
> (everything is lazy up to this point, no data has been read)
>
> Convert to dataframe with
>
> nc |> activate("D0") |> hyper_tibble()
>
> You can use hyper_array() to get in native array format with some informal
> metadata on the output.
>
> HTH, otherwise package stars has another approach and some similar
> facilities.  I often use tidync just to understand what's there, but I
> might craft a solution with a different tool after I've explored. RNetCDF
> will give you direct low level access to this format, for example.
>
> Cheers, Mike
>
>
>
>
> On Sun, Sep 11, 2022 at 1:22 PM sownal chand <sownalchandfms using gmail.com>
> wrote:
>
>> Hello Sir/Madam,
>>
>> I have downloaded a TRMM_LIS.nc File with lightning time series data and
>> was trying to extract it into a CSV file but I am not sure on how to do
>> it.
>>
>> I am also attaching the TRMM_LIS file via this link:
>>
>> https://drive.google.com/drive/u/0/folders/19nJNwPKlJaPlkHn_NGzmjMHMaoUevH04
>>
>> Request if someone can guide me and thanking you in advance
>> sownalc
>>
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>>
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>
>
> --
> Michael Sumner
> Software and Database Engineer
> Australian Antarctic Division
> Hobart, Australia
> e-mail: mdsumner using gmail.com
>

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