CCRN CanRCM4-WFDEI-GEM-CaPA

Location of Dataset Files

The CanRCM4-WFDEI-GEM-CaPA dataset is located under the following directory accessible from Digital Alliance of Canada (formerly Compute Canada) Graham cluster:

# Graham DRAC HPC Location
/project/rpp-kshook/Model_Output/280_CanRCM4_Cor_WFDEI-GEM-CaPA # rpp-kshook allocation

# Fir DRAC HPC Location
/project/rrg-alpie/data/meteorological-data/280_CanRCM4_Cor_WFDEI-GEM-CaPA # rrg-alpie allocation

and the structure of the dataset hourly files is as following:

/project/rpp-kshook/Model_Output/280_CanRCM4_Cor_WFDEI-GEM-CaPA
├── r8i2p1r1
│   ├── hus_r8i2p1r1_z1_1951-2100.Feb29.nc4
│   ├── pr_r8i2p1r1_z1_1951-2100.Feb29.nc4
│   ├── ps_r8i2p1r1_z1_1951-2100.Feb29.nc4
│   ├── rlds_r8i2p1r1_z1_1951-2100.Feb29.nc4
│   ├── rsds_r8i2p1r1_z1_1951-2100.Feb29.nc4
│   ├── ta_r8i2p1r1_z1_1951-2100.Feb29.nc4
│   └── wind_r8i2p1r1_z1_1951-2100.Feb29.nc4
.
.
.
├── %ensembleMember
│   ├── hus_%ensembleMember_z1_1951-2100.Feb29.nc4
│   ├── pr_%ensembleMember_z1_1951-2100.Feb29.nc4
│   ├── ps_%ensembleMember_z1_1951-2100.Feb29.nc4
│   ├── rlds_%ensembleMember_z1_1951-2100.Feb29.nc4
│   ├── rsds_%ensembleMember_z1_1951-2100.Feb29.nc4
│   ├── ta_%ensembleMember_z1_1951-2100.Feb29.nc4
│   └── wind_%ensembleMembe_z1_1951-2100.Feb29.nc4
.
.
.
└── r10i2p1r5
    ├── hus_%ensembleMember_z1_1951-2100.Feb29.nc4
    ├── pr_%ensembleMember_z1_1951-2100.Feb29.nc4
    ├── ps_%ensembleMember_z1_1951-2100.Feb29.nc4
    ├── rlds_%ensembleMember_z1_1951-2100.Feb29.nc4
    ├── rsds_%ensembleMember_z1_1951-2100.Feb29.nc4
    ├── ta_%ensembleMember_z1_1951-2100.Feb29.nc4
    └── wind_%ensembleMembe_z1_1951-2100.Feb29.nc4

Below is a list of ensemble members for this datase:

/project/rpp-kshook/Model_Output/280_CanRCM4_Cor_WFDEI-GEM-CaPA
├──  r10i2p1r1
├──  r10i2p1r2
├──  r10i2p1r3
├──  r10i2p1r4
├──  r10i2p1r5
├──  r8i2p1r1
├──  r8i2p1r2
├──  r8i2p1r3
├──  r8i2p1r4
├──  r8i2p1r5
├──  r9i2p1r1
├──  r9i2p1r2
├──  r9i2p1r3
├──  r9i2p1r4
└──  r9i2p1r5

Coordinate Variables and Time-stamps

Coordinate Variables

The coordinate variables of the CanRCM4-WFDEI-GEM-CaPA simulations are lon and lat representing the longitude and latitude points, respectively. ### Time-stamps The time-stamps are included in the original files.

Dataset Variables

Each NetCDF file belongs to a single variable. The list of variables included in the dataset is descriped in Short Description on Dataset Variables ## Spatial Extent The spatial extent of the dataset is on latitutes from 31.0625 to 71.9375 and longitudes from -149.9375 to -50.0625 covering North America. The resolution is 0.125 degrees.

Temporal Extent

The time-steps are 3-hourly covering from January 1951 to December 2100.

Short Description on Dataset Variables

In most hydrological modelling applications, usually 7 variables are needed detailed as following: 1) specific humidity at the Lowest Model Level (sigma=0.995), 2) surface pressure, 3) air temperature at the Lowest Model Level, 4) wind speed at the Lowest Model Level (sigma=0.995), 5) precipitation, 6) downward short wave radiation, and 7) downward long wave radiation. These variables are available through CanRCM4-WFDEI-GEM-CaPA dataset and their details are described in the table below:

Variable Information

Variable Name	Dataset Variable	Unit	IPCC Abbreviation	Comments
surface pressure	ps	Pa	ps	surface pressure
specific humidity @1.5m	hus	1	huss	Specific Humidity at Lowest Model Level (sigma=0.995)
air temperature @1.5m	ta	K	tas	Air Temperature at Lowest Model Level (sigma=0.995)
wind speed @10m	wind	m/s	wspd	Wind Modulus at Lowest Model Level (sigma=0.995)
precipitation	pr	kg m-2 s-1		precipitation flux
short wave radiation	rsds	W m-2	rsds	Surface Downwelling Shortwave Flux
long wave radiation	lsds	W m-2	rlds	Surface Downwelling Longwave Flux