Qualitative analysis of NSST

[guillaumevernieres]

Identify NSST related variables

• NSST foundation is in tref
• skin temp (?) is in: tmpsfc
• ocean temp is in Temp
• dtanl is the nsst increment?
• ...

Qualitative analysis

• compare tref with mom6's ocean surface temp for (03-06-09) over a few cycle
• ...

[guillaumevernieres]

FYI @AndrewEichmann-NOAA : After a bit of investigation, cplflx = .true. in input.nml means that tref is coming from mom6. No clue yet exactly what is used from mom6, but I suspect just the top layer, which does include a diurnal cycle.

Below is the tref difference with and without marine DA.

tref is defined here in sfc_nst_pre.f#L80

The plot above also indicate that tref is clearly coming from mom6.

I think the next step is to look at the nsst analysis ... I'm pretty sure this isn't fed back to the model.

[AndrewEichmann-NOAA]

So we expect the inputs to that equation to come from the ice model and mom6?

[guillaumevernieres]

So we expect the inputs to that equation to come from the ice model and mom6?

@AndrewEichmann-NOAA , I don't know where tgice is coming from.