[R] Converting .grib to excel file

[javad bayat]

Dear Bert and Sara;
I have searched on the internet and found some way to do this like python.
But python is so complicated to me as it needs many steps to be done for
reading and converting it.
I will try terra package to convert it.


On Tue, 25 Jun 2024, 15:15 javad bayat, <j.bayat194 using gmail.com> wrote:

> Richard,
> Many thanks for your email.
> I had attached the grib file to the original email to R help team but it
> seems you did not receive it.
> Unfortunately, I do not know how to reduce the volume or extract some of
> the grib file data to send it for you. The file has the volume of 6
> Megabyte.
> I can send it by email.
> The file has 6 met parameters and Date (day/month/year hour:minute).
> I want the exported file as excel contains 7 columns (Date + 6 met
> parameters).
>
>
> On Tue, 25 Jun 2024, 15:54 Richard O'Keefe, <raoknz using gmail.com> wrote:
>
>> Your message referred to an attached file but there was no attachment,
>> I have no account at that service, so could not download a sample for
>> myself.  Does the licence for the data even allow you to send some of
>> it in a message?  Which parameters are you extracting?  When you say
>> "it didn't work", what actually happened?  Which step went wrong and how?
>>
>>
>> On Tue, 25 Jun 2024 at 20:33, javad bayat <j.bayat194 using gmail.com> wrote:
>> >
>> > Dear all;
>> > I have downloaded meteorology data from "
>> >
>> https://cds.climate.copernicus.eu/cdsapp#!/dataset/reanalysis-era5-single-levels?tab=form
>> "
>> > as .grib format. It has hourly data of a complete year (every hour of
>> every
>> > day of 12 months) and has 6 meteorology parameters. The file has been
>> > attached.
>> > I am trying to convert it to an excel file that puts every parameter in
>> a
>> > separated column. For instance, the first col represents Date, 2nd
>> > represents Temperature and so on.
>> > Is there any way to do it?
>> > I used these codes but did not work:
>> > # install.packages("rNOMADS")
>> >
>> > library(rNOMADS)
>> >
>> > # Read GRIB data
>> > grib_data <- ReadGrib("C:/Users/admin/Downloads/Met.grib")
>> >
>> > # Convert to a data frame
>> > grib_df <- as.data.frame(grib_data)
>> >
>> > # Write the data frame to a CSV file
>> > write.csv(grib_df, file = "output.csv")
>> >
>> >
>> > I would be more than happy if anyone could help me.
>> > Sincerely
>> >
>> > --
>> > Best Regards
>> > Javad Bayat
>> > M.Sc. Environment Engineering
>> > Alternative Mail: bayat194 using yahoo.com
>> > ______________________________________________
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>> > and provide commented, minimal, self-contained, reproducible code.
>>
>

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