historical NCEP SST download

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longfei
Posts: 12
Joined: Mon May 17, 2021 9:24 am

historical NCEP SST download

Post by longfei » Fri Jun 18, 2021 5:41 pm

Hi wrfhelp team,
I am runing long simulation during 2001-2015 with WRFV.3.7.1 forced by FNL. I want to update the SST with NCEP SST analysis (rtg_sst). However, historical rtg_low_res is just available in 2018, how could I access to historical periods, such as 2001-2015?
Much thanks
Best, longfei

Ming Chen
Posts: 1588
Joined: Mon Apr 23, 2018 9:42 pm

Re: historical NCEP SST download

Post by Ming Chen » Tue Jun 22, 2021 5:11 am

Hi Longfei,
Please take a look at the NCAR CISL website here:
https://rda.ucar.edu/datasets/ds277.7/i ... 7&gindex=3
This is daily SST data that covers the period of your integration. Note that this data cannot represent any diurnal cycle and the resolution is coarse. I am not sure whether this dataset can meet your requirement. We don't have other SST data products.
WRF Help Desk

longfei
Posts: 12
Joined: Mon May 17, 2021 9:24 am

Re: historical NCEP SST download

Post by longfei » Tue Jun 22, 2021 6:07 am

Thank you for your instant reply, Ming. Another question is, this dataset is in nc form, and how can I do using it in WPS process? The default format in ungrib is grib files.

Ming Chen
Posts: 1588
Joined: Mon Apr 23, 2018 9:42 pm

Re: historical NCEP SST download

Post by Ming Chen » Tue Jun 22, 2021 10:24 pm

Hi Longfei,
For the NetCDF format data, you can skip ungrib. Instead, you will need to read the data, then write it to intermediate format.
The intermediate format is described in

https://www2.mmm.ucar.edu/wrf/users/doc ... gical_Data

In this website you can also find a piece of code that shows how to write intermediate format data.

Hope this is helpful.
WRF Help Desk

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