Opened 7 days ago

Last modified 2 days ago

#2540 new task

OSTIA SST and seaice fields

Reported by: anmcr Owned by: um_support
Priority: normal Component: Data
Keywords: OSTIA Cc:
Platform: Monsoon2 UM Version: 10.9


Dear Willie,

I need to run the regional configuration of the UM from 1/7/2014 to 31/10/2014, on MONSooN. I already have the necessary 6-hourly ERA-Interim fields. But could you please also supply me with the necessary OSTIA seaice and SST fields.

Many thanks for your help.


Attachments (3)

EC_grib.png (26.1 KB) - added by anmcr 7 days ago.
for-stu.PNG (81.5 KB) - added by anmcr 3 days ago.
ERA-Interim fields already retrieved
part.gif (18.7 KB) - added by willie 3 days ago.

Download all attachments as: .zip

Change History (8)

comment:1 Changed 7 days ago by willie

Hi Andrew,

I can get ERA Interim SST and sea ice from ECMWF in GRIB format - will that do? The OSTIA data is from the Met office and I'm not sure where it is.


Changed 7 days ago by anmcr

comment:2 Changed 7 days ago by anmcr

Hi Willie,

I've attached a screenshot of the 21 fields that Stu Webster has told me I need to run the nested suite. Are you able to retrieve these for the dates I require, from ERA-Interim?

Previously you retrieved 8 fields (skin temperature, surface pressure, land sea mask, geopotential, temperature, specific humidity, u velocity, v velocity).

Many thanks for your help,


Changed 3 days ago by anmcr

ERA-Interim fields already retrieved

comment:3 Changed 3 days ago by anmcr

Hi Willie,

Could you please get me ERA-Interim SST and seaice for the period I asked for. You have already retrieved 8 fields for me from ERA Interim. See attached xconv screenshot. Could you please re-retrieve these fields as well, so that all the fields are on a single file?

Many thanks for your help.


Changed 3 days ago by willie

comment:4 Changed 3 days ago by willie

Hi Andrew,

Do you really need these 21 fields? The UM will start with the basic eight and I can get most of the others. The ones that are not available are the cloud data fields. These may have been merged in from another program. I can get 18 of the 21 - see the attached picture part.gif.

Note that I don't have logarithm of surface pressure, but I do have surface pressure. For some reason in ERA-I the logarithm of the surface pressure is a multi level field! Perhaps Stuart just used the first level.

You need to think how the extra fields will be merged with the existing eight. One possibility is not to merge at all but for me to get the files like the one in my picture, ready to start the UM.

Let me know how you want to proceed.


comment:5 Changed 2 days ago by anmcr

Hi Willie,

I discussed this with Stu yesterday, and have got his lastest version to run with the basic eight fields you sent me. However, would it be possible to add SST and seaice to the basic eight fields? See the comment I sent yesterday.

Many thanks,


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