Ouranos MRCC5-CMIP6 dataset

Important: Some driving datasets / model members have documented missing periods and/or missing variables; see the Known missing data (CRCM5-CMIP6 ensemble) section at the end for details.

In this file, the details of the dataset is explained.

Location of Dataset Files

The MRCC5-CMIP6 dataset is located under the following directory accessible on the following locations:

# DRAC Graham HPC locations
# only CanESM5 and MPI-ESM1-2-LR models
/project/def-alpie-ab/data/meteorological-data/ouranos-mrcc5-cmip6 # def-alpie-ab allocation with DRAC Graham
# only CNRM-ESM2-1 model
/project/rpp-kshook/Climate_Forcing_Data/meteorological-data/ouranos-mrcc5-cmip6 # rpp-kshook allocation with DRAC Graham

# DRAC Fir HPC locations
/project/rrg-alpie/data/meteorological-data/ouranos-mrcc5-cmip6 # rrg-alpie allocation

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

/path/to/dataset/directory/
├── MPI-ESM1-2-LR
│   ├── ssp126
|   |   └── r1i1p1f1
│   |       └── CRCM5
|   |           └── v1-r1
|   |               └── 1hr
|   |                   ├── hurs
|   |                   |   └── %version_number
│   |                   |       ├── hurs_NAM-12_MPI-ESM1-2-LR_ssp126_r1i1p1f1_OURANOS_CRCM5_v1-r1_1hr_201501010030-201512312330.nc
|   |                   |       ├── hurs_NAM-12_MPI-ESM1-2-LR_ssp126_r1i1p1f1_OURANOS_CRCM5_v1-r1_1hr_201601010030-201612312330.nc
|   |                   |       ├── .
|   |                   |       ├── .
|   |                   |       ├── .
|   |                   |       ├── hurs_NAM-12_MPI-ESM1-2-LR_ssp126_r1i1p1f1_OURANOS_CRCM5_v1-r1_1hr_209901010030-209912312330.nc
|   |                   |       └── hurs_NAM-12_MPI-ESM1-2-LR_ssp126_r1i1p1f1_OURANOS_CRCM5_v1-r1_1hr_210001010030-210012312330.nc
│   |                   ├── %variable
|   |                   |   └── %version_number
|   |                   |       ├── %variable_NAM-12_%model_%scenario_%ensemble_OURANOS_CRCM5_v1-r1_1hr_201501010030-201512312330.nc
|   |                   |       ├── .
|   |                   |       ├── .
|   |                   |       ├── .
|   |                   |       └── %variable_NAM-12_%model_%scenario_%ensemble_OURANOS_CRCM5_v1-r1_1hr_210001010030-210012312330.nc
|   |                   └── vas
|   |                       └── %version_number
|   |                           ├── vas_NAM-12_MPI-ESM1-2-LR_ssp126_r1i1p1f1_OURANOS_CRCM5_v1-r1_1hr_201501010000-201512312300.nc
|   |                           ├── vas_NAM-12_MPI-ESM1-2-LR_ssp126_r1i1p1f1_OURANOS_CRCM5_v1-r1_1hr_201601010000-201612312300.nc
|   |                           ├── .
|   |                           ├── .
|   |                           ├── .
|   |                           ├── vas_NAM-12_MPI-ESM1-2-LR_ssp126_r1i1p1f1_OURANOS_CRCM5_v1-r1_1hr_209901010000-209912312300.nc
|   |                           └── vas_NAM-12_MPI-ESM1-2-LR_ssp126_r1i1p1f1_OURANOS_CRCM5_v1-r1_1hr_210001010000-210012312300.nc
│   ├── ssp370
.   .   .
.   .   .
.   .   .
├── %{model}
|   ├── %{scenario}
|   |   ├── %{ensemble}
|   |   |   └── CRCM5
|   |   |       └── v1-r1
|   |   |           └── 1hr
|   |   |               ├── %{var}
|   |                   |   └── %version_number
|   |   |               |       ├── %variable_NAM-12_%model_%scenario_%ensemble_OURANOS_CRCM5_v1-r1_1hr_201501010030-201512312330.nc
|   |   |               |       ├── .
|   |   |               |       ├── .
|   |   |               |       ├── .
|   |   |               |       └── %variable_NAM-12_%model_%scenario_%ensemble_OURANOS_CRCM5_v1-r1_1hr_210001010030-210012312330.nc
.   .   .               .
.   .   .               .
.   .   .               .

[!important] Not all models have the same number of scenarios, enesmble members, and variables. Each individual model needs to be investigated individually. However, datatool can ignore invalid choices automatically upon job submission.

Coordinate Variables and Time-stamps

Coordinate Variables

The coordinate variables for this dataset are rlon and rlat representing the longitude and latitude points, respectively.

Time-stamps

The time-stamps are included in the original files.

MRCC5-CMIP6 Climate Models

This dataset offers downscaled outputs of various climate models. Table below summarizes the models and relevant keywords that could be used with the main datatool script:

#

Model (keyword for --model)

Scenarios (keyword for --scenario)

1

CanESM5

historical, ssp126, ssp245, ssp370, ssp585

2

MPI-ESM1-2-LR

historical, ssp126, ssp245, ssp370, ssp585

3

CNRM-ESM2-1

historical, ssp126, ssp245, ssp370

4

NorESM2-MM

historical, ssp126, ssp245, ssp370

MRCC5-CMIP6 Climate Models’ Ensemble Members

This dataset offers downscaled outputs of various climate models. Table below summarizes the dataset ensemble members for each climate model:

#

Model (keyword for --model)

Ensemble Member(s) (keyword for --ensemble)

1

CanESM5

r1i1p1f1 and r1i1p2f1

2

MPI-ESM1-2-LR

r1i1p1f1 and r1i1p2f1

3

CNRM-ESM2-1

r1i1p1f2

4

NorESM2-MM

r1i1p1f1

Dataset Variables

The NetCDF files of the dataset contain various variables. You may see a list of variables by browsing the dataset’s directory:

foo@bar:~$ ls /path/to/dataset/dir/CanESM5/ssp126/r1i1p1f1/CRCM5/v1-r1/1hr/
hurs  huss  pr  ps  rlds  rsds  tas  uas  vas

Spatial Extent

The spatial extent of the MRCC5-CMIP6 is on latitutes from +6.33 to +82.84 and longitudes from -179.99 to 179.99 covering North America. The resolution is 0.11 degrees (~10km).

Temporal Extent

The time-stamps are already included in the original files. The dataset offers hourly time-series of climate variables. The following table describes the temporal extent for scenarios included in this dataset:

#

Scenarios (keyword for --scenario)

Temporal extent

1

historical

1950-01-01 to 2014-12-31

2

ssp126

2015-01-01 to 2100-12-31

3

ssp245

2015-01-01 to 2100-12-31

4

ssp370

2015-01-01 to 2100-12-31

5

ssp585

2015-01-01 to 2100-12-31

Note

Values of the Temporal extent column are the limits for --start-date and --end-date options with the main datatool script.

Note

CanESM5 model reports all variables at the beginning of the hour (YYYY-mm-ddTHH:00:00).

Note

MPI-ESM1-2-LR, CNRM-ESM2-1, and NorESM2-MM report pr, rlds, and rsds at the middle of the hour (YYYY-mm-ddTHH:30:00), while all other variables are reported at the top of the hour.

Calendar

Model

Calendar Type

MPI-ESM1-2-LR

standard

CNRM-ESM2-1

standard

CanESM5

365_day

NorESM2-MM

365_day

Short Description on MRCC5-CMIP6 Variables

This dataset offers the following hourly climate variables:

  1. Relative humidity time-series (@2m, near-surface level),

  2. Specific humidity time-series (@2m, near-surface level),

  3. Precipitation time-series (surface level),

  4. Surface pressure time-series (surface level),

  5. Eastward wind time-series (@10m, near-surface level),

  6. Northward wind time-series (@10m, near-surface level),

  7. Shortwave radiation (surface level),

  8. Longwave radiation (surface level),

  9. Air temperature time-series (@2m, near-surface level).

The table below summarizes the variables offered by this dataset:

Variable Information

Variable Name

Variable (keyword for --variable)

Unit

Comments

relative humidity

hurs

%

@2 meters above surface

specific humidity

huss

1

@2 meters above surface

precipitation

pr

kg m-2 s-1

surface level

surface air pressure

ps

Pa

surface level

longwave radiation

rlds

W m-2

surface level

shortwave radiation

rsds

W m-2

surface level

air temperature

tas

K

@2 meters above surface

eastward wind

uas

m s-1

Eastward wind component @10 meters above surface

northward wind

vas

m s-1

Northward wind component @10 meters above surface

Known missing data (CRCM5-CMIP6 ensemble)

The CRCM5-CMIP6 ensemble has documented missing periods and/or missing variables for some driving datasets and members. If Missing Date End is not provided, the data is missing for the entirety of the Missing Date Start time unit (e.g., 1979-01-01 means the whole day; 1979-01 means the whole month). The missing-data table below is transcribed from the provided CRCM5-CMIP6 missing-data table PDF. Please refer to the dataset’s Zenodo webpage for complete information at https://zenodo.org/records/18624465.

Missing periods / variables

Driving data

Period / scenario

Ensemble member (if applicable)

Missing date start

Missing date end

Variables

Details

CNRM-ESM2-1

historical

1950-01-01 00:00

1950-01-01 11:00

All

Simulation starts at 12:00, correction underway

CNRM-ESM2-1

historical

1955-04-21 01:00

1955-04-30 00:00

All

Correction underway

CNRM-ESM2-1

historical

2002-04-19 01:00

2002-04-30 00:00

All

Correction underway

CNRM-ESM2-1

historical

2007-09

hurs, huss

Correction underway

CNRM-ESM2-1

historical

2009-02-13 01:00

2009-02-28 00:00

All

Correction underway

CNRM-ESM2-1

historical

2011-09

rlds

Correction underway

CanESM5

ssp126, ssp245, ssp370

2015-01-01 00:00

Instantaneous variables

Missing from scenario start (see comprehensive output-variable list for which variables are instantaneous)

MPI-ESM1-2-LR

ssp126, ssp245, ssp370

2015-01-01 00:00

Instantaneous variables

Missing from scenario start (see comprehensive output-variable list for which variables are instantaneous)

NorESM-MM

historical

1950-01-01 00:00

1950-01-01 05:00

All

Simulation starts at 06:00

MPI-ESM1-2-LR

historical

r1i1p1f1

1950-01-10

All

MPI-ESM1-2-LR

historical

r1i1p1f1

1950-01-20

All

MPI-ESM1-2-LR

historical

r1i1p1f1

1950-01-30

All

MPI-ESM1-2-LR

historical

r2i1p1f1

1951-01-01

1953-08-31

All

MPI-ESM1-2-LR

historical

r3i1p1f1

1951-01-01

1953-06-30

All