Check ORCA bathymetry

Ferret script to convert the ORCA .nc files to Ferret-readable

Summary table comparing original ORCA and 2 new bathymetry runs:

Transport means (Sv)	OLD	NEW(1)	NEW(2)
Total (across 5.74°S)	22.8	23.3	22.4
Vitiaz St	12.0	26.4	16.4
Solomon St	10.8	–3.7	3.3
St Georges Channel	---	---	2.7
New Ireland Coastal C.	17.4	1.8	10.0

1. Second test run (includes some comparisons with first run):
   1. See additional comparisons (with original run) in section 5 on the ORCA interannual page
   2. Solomon Sea bathymetry differences (V-grid):  Old bathy: depths and number   New bathy: depths and number
         Differences:   Number of depths   Depths
   3. Maps of mean transport:
      1. Solomon Sea region:    u   v
      2. Vectors (on the B-grid):
         1. Solomon Sea transport   (differences)
         2. Velocity above, in, and below the thermocline:    Original ORCA    New (2)    Difference
         3. Coral Sea transports (large region):
            1. Old
            2. New (1)
            3. New (2)
            4. Difference: New (2) – Old
            5. Difference: New (2) – New (1)
         4. Coral Sea velocity above, in, and below the thermocline:   New (2)   Difference: New (2) – Old
         5. Depths and circulation on the northern reefs of NC
   4. Zonal sections of v(x,z):
      1. Vitiaz and Solomon St (5.74°S)
      2. Solomon Sea inflow (9.7°S)   (zonal average speed profile across section)
      3. Section across New Ireland Coastal Current
   5. Meridional section of u at 162°E:   u(y,z)   Zonal transport
   6. Seasonal cycle:
      1. Time series:
         1. Transport through Vitiaz Strait
         2. Transport through St George's Channel
         3. Transport through Solomon St
      2. Transport (x,t) through Solomon St (5.74°S)   (5.24°S)
      3. Zonal flow through the Grand Passage

   ---

2. First test run:
   1. Maps of bathymetry:
      1. Compare new bathymetry to Smith/Sandwell (NC-Vanuatu-Guadalcanal)
         Depths and circulation on the northern reefs of NC: Original ORCA   New bathymetry spinup run
      2. Smith/Sandwell bathymetry of Vitiaz, St Georges and Solomon Straits
         Map of Vitiaz and St Georges (Fig 4 of Lindstrom etal 90)
      3. Solomon Sea bathymetry differences (V-grid): Number of depths   Depths
   2. Maps of mean transport:
      1. Solomon Sea region:    u   v   Differences
      2. Detail near Vitiaz St:    u   v
      3. Vectors (on the B-grid)   (extend to NQC)   (differences)   (large region)
   3. v(x,z) Vitiaz and Solomon Sts
      1. Figs. 2 and 3 from Murray et al (1995 WOCE Notes)
      2. Fig 9 from Lindstrom et al (1990)
   4. Mean vertical profiles of v in Vitiaz St
   5. Inflow (v) across 9.7°S into Solomon Sea   Compare CARS (total)
   6. Time series:
      1. (z,t) profiles in Vitiaz St: Old   New
      2. Vitiaz St vertically-integrated timeseries
      3. Vitiaz and Solomon St total integral transports (and its parts)

	Dr. William S. Kessler NOAA / PMEL / OCRD 7600 Sand Point Way NE Seattle WA 98115 USA	Tel:   206-526-6221 Fax:  206-526-6744 E-mail:  william.s.kessler@noaa.gov
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