Dear Richard,
I could not extract the data at all.
But what I found is that, the data stored in the grib file converted into
raster layer, and as I had 6 met parameters for a complete year (6 × 365 ×
24) the raster layer has 52,560 layer. The first layer belongs to the first
parameter for the
Whoops, sorry, you *did* answer "what went wrong".
> param_names <- c("param1", "param2", "param3", "param4", "param5", "param6")
> extracted_data <- extract(raster_data, param_names, df = TRUE)
#Error in (function (classes, fdef, mtable) :
#unable to find an inherited method for function
I'm now inclined to go with 'search for "convert GRIB to CSV".
https://confluence.ecmwf.int/display/CKB/How+to+convert+GRIB+to+CSV
is the first line. I know that's not an R solution, but using software
specifically developed for encoding, decoding, extracting, GRIB file by the
European Centre
Dear all;
I used the terra package to export .grib data as an excel file but I could
not do it.
The grib file is readed and converted to raster correctly. It contains
hourly data of a complete year for 6 met parameters (365 * 24 * 6 =
52,560). In the "raster_data" it can be seen as "nlyr" (
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, wrote:
> Richard,
>
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
Hi,
While Bert is correct that there are plenty of tools, my preferred approach
is to use the terra package to load a grib as a raster stack.
>From there, it's straightforward to use all the spatial tools with the
data, or to extract it in whatever form and with whatever dimensions you
wish.
Do a web search on "convert grib data to csv". You will get many hits. You
probably don't need R to do this.
-- Bert
On Tue, Jun 25, 2024 at 1:33 AM javad bayat wrote:
> Dear all;
> I have downloaded meteorology data from "
>
>
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",
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.
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