Downloading NLDAS Primary Forcing Data L4 Hourly

[jreynolds]

I have successfully retrieved the links to download data from
NLDAS Primary Forcing Data L4 Hourly 0.125 x 0.125 degree V2.0 (NLDAS_FORA0125_H)
but the links lead to e.g. "Sorry, NLDAS_FORA0125_H.A20220201.0600.002.grb.SUB.grb is not available for downloading" message or an error will occur and will not download data.

[andrew.m.fisher]

The NLDAS_FORA0125_H Version 002 (GRIB files) are no longer available. Please use NLDAS_FORA0125_H Version 2.0 which is the same dataset but in netCDF format. https://disc.gsfc.nasa.gov/datasets/NLDAS_FORA0125_H_2.0/summary

[jreynolds]

Thank you! I am still having difficulties downloading the data. Is there a step by step walkthrough available?

[andrew.m.fisher]

Here are some "How-To" guides that may help you...

https://disc.gsfc.nasa.gov/information/howto?title=How%20to%20use%20the%20Level%203%20and%204%20Subsetter%20and%20Regridder

https://disc.gsfc.nasa.gov/information/howto?title=How%20to%20Access%20GES%20DISC%20Data%20Using%20wget%20and%20curl

If you are still having issues, please let us know in detail how you are downloading so we can help.

[jreynolds]

I'm trying to download the files straight into RStudio since I am trying to download hourly weather data from March 2017 to April 2024

[GES DISC - jschaperow]

If you have a list of links, you can download them straight into R using the httr or curl R packages. You may also be interested in the earthdatalogin package here: https://cran.r-project.org/web/packages/earthdatalogin/index.html.

If you need a reference for how to manipulate NetCDF files in R, this tutorial might be helpful: https://pjbartlein.github.io/REarthSysSci/netCDF.html.

We also have a relevant R "How-To" on the GES DISC website, but it is a bit out of date (the maptools package is no longer supported): https://disc.gsfc.nasa.gov/information/howto?keywords=r&title=How%20to%20Read%20Data%20in%20netCDF%20Format%20with%20R

If you are still stuck, feel free to reach out again, but it would be helpful for us if you could provide more details about what you are trying to do and where you are getting stuck. (e.g. method of access, error messages, etc.)

[erdc_vespa]

andrew.m.fisher wrote:
> The NLDAS_FORA0125_H Version 002 (GRIB files) are no longer available.
> Please use NLDAS_FORA0125_H Version 2.0 which is the same dataset but in
> netCDF format.
> https://disc.gsfc.nasa.gov/datasets/NLDAS_FORA0125_H_2.0/summary