Norwegian Meteorological Institute met.no R&D, Section Oceanography Norwegian Meteorological Institute met.no Spinning up on HYCOM at met.no: Early results.

Norwegian Meteorological Institute met.no

R&D, Section OceanographyNorwegian Meteorological Institute

met.no

Spinning up on HYCOM at met.no: Early results with a

hybrid-coordinate ocean model

Norwegian Meteorological Institute met.no

R&D, Section Oceanography

^

^Layer 1 target density ~ 1

Assume 1 < 1

Isopycnic interface adjustment:

Hybrid coordinates

Hybrid coordinate adjustment:

/z-levels:sigma = D / Nsigma

n = max[min,min(n,sigma)]

~

1

0

p0

p1

p2

Norwegian Meteorological Institute met.no

R&D, Section Oceanography

Balticinflow

Atlanticinflow

Bottom topography

outflow

Norwegian Meteorological Institute met.no

R&D, Section Oceanography

sponge

climatology weak A. inflow

strong A. inflow

weak A.+B. inflow

strong A.+B. inflow

Density cross-section (January)

Norwegian Meteorological Institute met.no

R&D, Section Oceanography

climatology weak A. inflow weak A.+B. inflow

sponge strong A. inflow strong A.+B. inflow

Salinity, layer 1

Norwegian Meteorological Institute met.no

R&D, Section Oceanography

Density, layer 3 (target: 1.8)climatology

sponge

weak A. inflow

strong A. inflow

weak A.+B. inflow

strong A.+B. inflow

Norwegian Meteorological Institute met.no

R&D, Section Oceanography

climatology weak A. inflow weak A.+B. inflow

sponge strong A. inflow strong A.+B. inflow

Thickness, layer 3

Norwegian Meteorological Institute met.no

R&D, Section Oceanography

Density, layer 5 (target: 2.5)

climatology weak A. inflow weak A.+B. inflow

sponge strong A. inflow strong A.+B. inflow

Norwegian Meteorological Institute met.no

R&D, Section Oceanography

climatology weak A. inflow weak A.+B. inflow

sponge strong A. inflow strong A.+B. inflow

Thickness, layer 5

Norwegian Meteorological Institute met.no

R&D, Section Oceanography

Density: Climatology (top) vs.weak A. inflow (bottom)

2 543 6

Norwegian Meteorological Institute met.no

R&D, Section Oceanography

Layer thickness: Climatology (top)

vs. weak A. inflow (bottom)

2 543 6

Norwegian Meteorological Institute met.no

R&D, Section Oceanography

Density: Climatology (top) vs.strong A.+B. inflow (bottom)

2 543 6

Norwegian Meteorological Institute met.no

R&D, Section Oceanography

2 543 6

Layer thickness: Climatology (top) vs.strong A.+B. inflow (bottom)

Norwegian Meteorological Institute met.no

R&D, Section Oceanography

climatology weak A. inflow, low res.

Density cross-section (January)

weak A. inflow, high res.

Norwegian Meteorological Institute met.no

R&D, Section Oceanography

climatology

Salinity, layer 1weak A. inflow, low res.

weak A. inflow, high res.

Norwegian Meteorological Institute met.no

R&D, Section Oceanography

Density: Climatology (top) vs.weak A. inflow, high res. (bottom)

2 543 6

Density: Weak A. inflow,high res. (top) vs. low res. (bottom)

Norwegian Meteorological Institute met.no

R&D, Section Oceanography

Layer thickness: Weak A. inflow,high res. (top) vs. low res. (bottom)

2 543 6

Layer thickness: Climatology (top) vs.weak A. inflow, high res. (bottom)