CCSM4 model output prepared for CMIP5 pre-industrial control

Load in Python

from intake import open_catalog

cat = open_catalog("https://raw.githubusercontent.com/kpegion/COLA-DATASETS-CATALOG/gh-pages/intake-catalogs/hus_Amon_CCSM4_piControl_r2i1p1.yaml")
ds=cat.netcdf.read()

Metadata

title	CCSM4 model output prepared for CMIP5 pre-industrial control
location	/shared/cmip5/data/piControl/atmos/mon/Amon/hus/NCAR.CCSM4/r2i1p1
tags	gridded,global,model,monthly
catalog_dir	https://raw.githubusercontent.com/kpegion/COLA-DATASETS-CATALOG/gh-pages/intake-catalogs/hus_Amon_CCSM4_piControl_r2i1p1.yaml
last updated	2017-07-06

Dataset Contents

<xarray.Dataset>
Dimensions:    (bnds: 2, lat: 192, lon: 288, plev: 17, time: 1872)
Coordinates:
  * time       (time) float64 15.5 45.0 74.5 ... 5.686e+04 5.689e+04 5.692e+04
  * plev       (plev) float64 1e+05 9.25e+04 8.5e+04 7e+04 ... 3e+03 2e+03 1e+03
  * lat        (lat) float64 -90.0 -89.06 -88.12 -87.17 ... 88.12 89.06 90.0
  * lon        (lon) float64 0.0 1.25 2.5 3.75 5.0 ... 355.0 356.2 357.5 358.8
Dimensions without coordinates: bnds
Data variables:
    time_bnds  (time, bnds) float64 dask.array<chunksize=(600, 2), meta=np.ndarray>
    lat_bnds   (time, lat, bnds) float64 dask.array<chunksize=(600, 192, 2), meta=np.ndarray>
    lon_bnds   (time, lon, bnds) float64 dask.array<chunksize=(600, 288, 2), meta=np.ndarray>
    hus        (time, plev, lat, lon) float32 dask.array<chunksize=(600, 17, 192, 288), meta=np.ndarray>
Attributes:
    institution:                  NCAR (National Center for Atmospheric Resea...
    institute_id:                 NCAR
    experiment_id:                piControl
    source:                       CCSM4
    model_id:                     CCSM4
    forcing:                      Sl GHG SS Ds SD BC MD OC Oz AA (all fixed a...
    parent_experiment_id:         N/A
    parent_experiment_rip:        N/A
    branch_time:                  0.0
    contact:                      cesm_data@ucar.edu
    comment:                      CESM home page: http://www.cesm.ucar.edu
    references:                   Gent P. R., et.al. 2011: The Community Clim...
    initialization_method:        1
    physics_version:              1
    tracking_id:                  0ca89d24-d285-4707-bb66-299de199d0fc
    acknowledgements:             The CESM project is supported by the Nation...
    cesm_casename:                b40.1850.track1.1deg.006a
    cesm_repotag:                 ccsm4_0_beta53
    cesm_compset:                 B1850CN
    resolution:                   f09_g16 (0.9x1.25_gx1v6)
    forcing_note:                 Additional information on the external forc...
    processed_by:                 strandwg on silver.cgd.ucar.edu at 20120609...
    processing_code_information:  Last Changed Rev: 850 Last Changed Date: 20...
    product:                      output
    experiment:                   pre-industrial control
    frequency:                    mon
    creation_date:                2012-06-09T22:47:36Z
    history:                      2012-06-09T22:47:36Z CMOR rewrote data to c...
    Conventions:                  CF-1.4
    project_id:                   CMIP5
    table_id:                     Table Amon (12 January 2012) 4996d487f7a657...
    title:                        CCSM4 model output prepared for CMIP5 pre-i...
    parent_experiment:            N/A
    modeling_realm:               atmos
    realization:                  2
    cmor_version:                 2.8.1

xarray.Dataset

Dimensions:
- bnds: 2
- lat: 192
- lon: 288
- plev: 17
- time: 1872

Coordinates: (4)

time
(time)
float64
15.5 45.0 ... 5.689e+04 5.692e+04
bounds :
time_bnds
units :
days since 0953-01-01 00:00:00
calendar :
noleap
axis :
T
long_name :
time
standard_name :
time
```
array([1.55000e+01, 4.50000e+01, 7.45000e+01, ..., 5.68635e+04, 5.68940e+04,
       5.69245e+04])
```

plev

(plev)

float64

1e+05 9.25e+04 ... 2e+03 1e+03

units :: Pa
axis :: Z
positive :: down
long_name :: pressure
standard_name :: air_pressure

array([100000.,  92500.,  85000.,  70000.,  60000.,  50000.,  40000.,  30000.,
        25000.,  20000.,  15000.,  10000.,   7000.,   5000.,   3000.,   2000.,
         1000.])

lat

(lat)

float64

-90.0 -89.06 -88.12 ... 89.06 90.0

bounds :: lat_bnds
units :: degrees_north
axis :: Y
long_name :: latitude
standard_name :: latitude

array([-90.      , -89.057594, -88.115181, -87.172775, -86.23037 , -85.287956,
       -84.345551, -83.403145, -82.460732, -81.518326, -80.575912, -79.633507,
       -78.691101, -77.748688, -76.806282, -75.863876, -74.921463, -73.979057,
       -73.036652, -72.094238, -71.151833, -70.209427, -69.267014, -68.324608,
       -67.382202, -66.439789, -65.497383, -64.554977, -63.612564, -62.670158,
       -61.727749, -60.785339, -59.842934, -58.900524, -57.958115, -57.015705,
       -56.073299, -55.13089 , -54.18848 , -53.246075, -52.303665, -51.361256,
       -50.41885 , -49.47644 , -48.534031, -47.591621, -46.649216, -45.706806,
       -44.764397, -43.821991, -42.879581, -41.937172, -40.994766, -40.052357,
       -39.109947, -38.167538, -37.225132, -36.282722, -35.340313, -34.397907,
       -33.455498, -32.513088, -31.570681, -30.628273, -29.685863, -28.743456,
       -27.801046, -26.858639, -25.916231, -24.973822, -24.031414, -23.089005,
       -22.146597, -21.204189, -20.26178 , -19.319372, -18.376963, -17.434555,
       -16.492147, -15.549738, -14.607329, -13.664922, -12.722513, -11.780105,
       -10.837696,  -9.895288,  -8.95288 ,  -8.010471,  -7.068063,  -6.125654,
        -5.183246,  -4.240838,  -3.298429,  -2.356021,  -1.413613,  -0.471204,
         0.471204,   1.413613,   2.356021,   3.298429,   4.240838,   5.183246,
         6.125654,   7.068063,   8.010471,   8.95288 ,   9.895288,  10.837696,
        11.780105,  12.722513,  13.664922,  14.607329,  15.549738,  16.492147,
        17.434555,  18.376963,  19.319372,  20.26178 ,  21.204189,  22.146597,
        23.089005,  24.031414,  24.973822,  25.916231,  26.858639,  27.801046,
        28.743456,  29.685863,  30.628273,  31.570681,  32.513088,  33.455498,
        34.397907,  35.340313,  36.282722,  37.225132,  38.167538,  39.109947,
        40.052357,  40.994766,  41.937172,  42.879581,  43.821991,  44.764397,
        45.706806,  46.649216,  47.591621,  48.534031,  49.47644 ,  50.41885 ,
        51.361256,  52.303665,  53.246075,  54.18848 ,  55.13089 ,  56.073299,
        57.015705,  57.958115,  58.900524,  59.842934,  60.785339,  61.727749,
        62.670158,  63.612564,  64.554977,  65.497383,  66.439789,  67.382202,
        68.324608,  69.267014,  70.209427,  71.151833,  72.094238,  73.036652,
        73.979057,  74.921463,  75.863876,  76.806282,  77.748688,  78.691101,
        79.633507,  80.575912,  81.518326,  82.460732,  83.403145,  84.345551,
        85.287956,  86.23037 ,  87.172775,  88.115181,  89.057594,  90.      ])

lon
(lon)
float64
0.0 1.25 2.5 ... 356.2 357.5 358.8
bounds :
lon_bnds
units :
degrees_east
axis :
X
long_name :
longitude
standard_name :
longitude
```
array([  0.  ,   1.25,   2.5 , ..., 356.25, 357.5 , 358.75])
```

Data variables: (4)

time_bnds

(time, bnds)

float64

dask.array<chunksize=(600, 2), meta=np.ndarray>

	Array	Chunk
Bytes	29.95 kB	10.75 kB
Shape	(1872, 2)	(672, 2)
Count	9 Tasks	3 Chunks
Type	float64	numpy.ndarray

lat_bnds

(time, lat, bnds)

float64

dask.array<chunksize=(600, 192, 2), meta=np.ndarray>

	Array	Chunk
Bytes	5.75 MB	2.06 MB
Shape	(1872, 192, 2)	(672, 192, 2)
Count	12 Tasks	3 Chunks
Type	float64	numpy.ndarray

lon_bnds

(time, lon, bnds)

float64

dask.array<chunksize=(600, 288, 2), meta=np.ndarray>

	Array	Chunk
Bytes	8.63 MB	3.10 MB
Shape	(1872, 288, 2)	(672, 288, 2)
Count	12 Tasks	3 Chunks
Type	float64	numpy.ndarray

hus

(time, plev, lat, lon)

float32

dask.array<chunksize=(600, 17, 192, 288), meta=np.ndarray>

standard_name :: specific_humidity
long_name :: Specific Humidity
units :: 1
original_name :: Q,PS
comment :: Q interpolated to standard plevs
original_units :: kg/kg
history :: 2012-06-09T22:47:09Z altered by CMOR: Converted units from 'kg/kg' to '1'. 2012-06-09T22:47:09Z altered by CMOR: Reordered dimensions, original order: plev lat lon time. 2012-06-09T22:47:09Z altered by CMOR: replaced missing value flag (-1e+32) with standard missing value (1e+20).
cell_methods :: time: mean (interval: 30 days)
cell_measures :: area: areacella
associated_files :: baseURL: http://cmip-pcmdi.llnl.gov/CMIP5/dataLocation gridspecFile: gridspec_atmos_fx_CCSM4_piControl_r0i0p0.nc areacella: areacella_fx_CCSM4_piControl_r0i0p0.nc

	Array	Chunk
Bytes	7.04 GB	2.53 GB
Shape	(1872, 17, 192, 288)	(672, 17, 192, 288)
Count	9 Tasks	3 Chunks
Type	float32	numpy.ndarray

Attributes: (36)
institution :
NCAR (National Center for Atmospheric Research) Boulder, CO, USA
institute_id :
NCAR
experiment_id :
piControl
source :
CCSM4
model_id :
CCSM4
forcing :
Sl GHG SS Ds SD BC MD OC Oz AA (all fixed at 1850 values)
parent_experiment_id :
N/A
parent_experiment_rip :
N/A
branch_time :
0.0
contact :
cesm_data@ucar.edu
comment :
CESM home page: http://www.cesm.ucar.edu
references :
Gent P. R., et.al. 2011: The Community Climate System Model version 4. J. Climate, doi: 10.1175/2011JCLI4083.1
initialization_method :
1
physics_version :
1
tracking_id :
0ca89d24-d285-4707-bb66-299de199d0fc
acknowledgements :
The CESM project is supported by the National Science Foundation and the Office of Science (BER) of the U.S. Department of Energy. NCAR is sponsored by the National Science Foundation. Computing resources were provided by the Climate Simulation Laboratory at the NCAR Computational and Information Systems Laboratory (CISL), sponsored by the National Science Foundation and other agencies.
cesm_casename :
b40.1850.track1.1deg.006a
cesm_repotag :
ccsm4_0_beta53
cesm_compset :
B1850CN
resolution :
f09_g16 (0.9x1.25_gx1v6)
forcing_note :
Additional information on the external forcings used in this experiment can be found at http://www.cesm.ucar.edu/CMIP5/forcing_information
processed_by :
strandwg on silver.cgd.ucar.edu at 20120609 -164709.588
processing_code_information :
Last Changed Rev: 850 Last Changed Date: 2012-06-08 11:47:56 -0600 (Fri, 08 Jun 2012) Repository UUID: d2181dbe-5796-6825-dc7f-cbd98591f93d
product :
output
experiment :
pre-industrial control
frequency :
mon
creation_date :
2012-06-09T22:47:36Z
history :
2012-06-09T22:47:36Z CMOR rewrote data to comply with CF standards and CMIP5 requirements.
Conventions :
CF-1.4
project_id :
CMIP5
table_id :
Table Amon (12 January 2012) 4996d487f7a65749098d9cc0dccb4f8d
title :
CCSM4 model output prepared for CMIP5 pre-industrial control
parent_experiment :
N/A
modeling_realm :
atmos
realization :
2
cmor_version :
2.8.1