The Role of Ocean Eddy Resolving Models in Seasonal to Decadal - - PowerPoint PPT Presentation

▶
the role of ocean eddy resolving models in seasonal to
SMART_READER_LITE
LIVE PREVIEW

The Role of Ocean Eddy Resolving Models in Seasonal to Decadal - - PowerPoint PPT Presentation

Feb 21, 2023 310 likes •493 views

The Role of Ocean Eddy Resolving Models in Seasonal to Decadal Prediction Ocean Eddy Resolving Coupled Predictability CESM Atmosphere: 0.5x0.5 Ocean: 0.1x0.1 [HRC] vs. 1x1 [LRC] New Seasonal-to-Decadal Variability Means,

slide-1
SLIDE 1

The Role of Ocean Eddy Resolving Models in Seasonal to Decadal Prediction

slide-2
SLIDE 2

Ocean Eddy Resolving Coupled Predictability

  • CESM

– Atmosphere: 0.5x0.5 – Ocean: 0.1x0.1 [HRC] vs. 1x1 [LRC]

  • “New” Seasonal-to-Decadal Variability

– Means, Fronts vs. Eddies (or Both)?

  • Does the Atmosphere Interact with the

Individual Ocean Eddies?

  • Forecast Errors with LRC

– Local Air-Sea Feedbacks

slide-3
SLIDE 3

SST: LRC SST: Observational Estimate

3

slide-4
SLIDE 4

SST: HRC SST: Observational Estimate

4

slide-5
SLIDE 5

Rainfall: HRC, and LRC Rainfall: Observational Estimate

5

slide-6
SLIDE 6

LRC SSH HRC SSH

Sea Surface Height Standard Deviation

slide-7
SLIDE 7
slide-8
SLIDE 8
slide-9
SLIDE 9

! LR! HR!

slide-10
SLIDE 10

Correlation of LHF and SST for HRC Correlation of LHF and SST for LRC

Model year Time series of area-average SST over GoM region with marked warm and cold events Area-averaged SST normalized by standard deviation

slide-11
SLIDE 11

Full precipitation composite based

  • n warm-cold SST events over

GoM (m/s) Full precipitation composite based

  • n cold SST events over GoM (m/s)

Full precipitation composite based on warm SST events over GoM (m/s)

slide-12
SLIDE 12

Ocean Eddy Resolving Coupled Predictability

  • CESM

– Atmosphere: 0.5x0.5 – Ocean: 0.1x0.1 [HRC] vs. 1x1 [LRC]

  • “New” Seasonal-to-Decadal Variability

– Means, Fronts vs. Eddies (or Both)?

  • Does the Atmosphere Interact with the

Individual Ocean Eddies?

  • Forecast Errors with LRC

– Local Air-Sea Feedbacks

slide-13
SLIDE 13

Local SSTA- Turbulent Heat Flux Correlation

slide-14
SLIDE 14

SST Standard Deviation Ratios

slide-15
SLIDE 15

Ocean Eddy Resolving Coupled Predictability

  • CESM

– Atmosphere: 0.5x0.5 – Ocean: 0.1x0.1 [HRC] vs. 1x1 [LRC]

  • “New” Seasonal-to-Decadal Variability

– Means, Fronts vs. Eddies (or Both)?

  • Does the Atmosphere Interact with the

Individual Ocean Eddies?

  • Forecast Errors with LRC

– Local Air-Sea Feedbacks

slide-16
SLIDE 16

Seasonal Forecast Errors

slide-17
SLIDE 17

Ocean Eddy Resolving Coupled Predictability

  • CESM

– Atmosphere: 0.5x0.5 – Ocean: 0.1x0.1 [HRC] vs. 1x1 [LRC]

  • “New” Seasonal-to-Decadal Variability

– Means, Fronts vs. Eddies (or Both)?

  • Does the Atmosphere Interact with the

Individual Ocean Eddies?

  • Forecast Errors with LRC

– Local Air-Sea Feedbacks