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University of Miami Coupled Model (UMCM) for Hurricanes Ike and Sandy

Model

The University of Miami Coupled Model (UMCM) is a coupled model that integrates atmospheric, wave, and ocean components to produce wind, wave, and current data. Atmospheric data is produced using the Weather Research and Forecasting model (WRF), Wave data is produced using the University of Miami Wave Model (UMWM), While ocean current data is produce using the HYbrid Coordinate Ocean Model (HYCOM).

The model was used to study offshore wind conditions during Hurricane Ike and Hurricane Sandy. The time resolution for each model run is as follows:

  • Hurricane Ike
    • 1 sample/hour from 9/8/2008 12:00:00 UTC to 9/12/2008 6:00:00 UTC
    • 1 sample/10 minutes from 9/12/2008 6:00:00 UTC to 9/13/2008 9:00:00 UTC
  • Hurricane Sandy
    • 1 sample/10 minutes from 10/28/2012 00:10:00 UTC to 10/31/2012 00:00:00 UTC

The following variables were extracted from the HYCOM model:

  • bathymetry
  • ocean_mixed_layer_thickness-ilt
  • ocean_mixed_layer_thickness-mlt
  • sea_water_potential_density at all depths
  • sea_water_salinity at all depths
  • sea_surface_elevation
  • eastward_sea_water_velocity
  • northward_sea_water_velocity
  • upward_sea_water_velocity
  • sea_water_temperature
  • depth (m): [0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 120, 135, 150, 175, 200, 225, 250, 275, 300, 350, 400, 450, 500, 600, 700, 800, 900, 1000]

The following variables were extracted from the

  • cd
  • cgmxx
  • cgmxy
  • cgmyy
  • dcg
  • dcg0
  • dcp
  • dcp0
  • depth (m): [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40, 50, 60, 70, 80, 90, 100]
  • dwd
  • dwl
  • dwp
  • momx
  • momy
  • mss
  • mwd
  • mwl
  • mwp
  • rhoa
  • rhow
  • seamask
  • swh
  • tailatmx
  • tailatmy
  • tailocnx
  • tailocny
  • taux_bot
  • taux_form
  • taux_form_1
  • taux_form_2
  • taux_form_3
  • taux_ocn
  • taux_skin
  • taux_snl
  • tauy_bot
  • tauy_form
  • tauy_form_1
  • tauy_form_2
  • tauy_form_3
  • tauy_ocn
  • tauy_skin
  • tauy_snl
  • u_stokes at all depths
  • uc
  • ust
  • v_stokes at all depths
  • vc
  • wdir
  • wspd

Directory structure

The UMCM data is stored in two .h5 files:

  • s3://oedi-data-lake/umcm/
    • ike.h5
    • sandy.h5

The UMCM data is also available via HSDS at /nrel/umcm/.

For examples on setting up and using HSDS please see our examples repository

Data Format

The UMCM data is stored by in datasets by variable and depth (when available). Each dataset is composed of a 3D data "cube" with dimensions (time, latitude, longitude). The positional values of each dimension are available in the 1D datasets:

  • time_index
  • latitude
  • longitude

Additional locational meta data is available in the meta table.

References

Users of the UMCM model should use the following citation: