CCSM4 model output prepared for CMIP5 historical

Load in Python

from intake import open_catalog

cat = open_catalog("https://raw.githubusercontent.com/kpegion/COLA-DATASETS-CATALOG/gh-pages/intake-catalogs/ta_Amon_CCSM4_historical_r6i1p1.yaml")
ds=cat.netcdf.read()

Metadata

title	CCSM4 model output prepared for CMIP5 historical
location	/shared/cmip5/data/historical/atmos/mon/Amon/ta/NCAR.CCSM4/r6i1p1
tags	gridded,global,model,monthly
catalog_dir	https://raw.githubusercontent.com/kpegion/COLA-DATASETS-CATALOG/gh-pages/intake-catalogs/ta_Amon_CCSM4_historical_r6i1p1.yaml
last updated	2013-06-24

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>
    ta         (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:                historical
    source:                       CCSM4
    model_id:                     CCSM4
    forcing:                      Sl GHG Vl SS Ds SD BC MD OC Oz AA LU
    parent_experiment_id:         piControl
    parent_experiment_rip:        r1i1p1
    branch_time:                  953.0
    contact:                      cesm_data@ucar.edu
    references:                   Gent P. R., et.al. 2011: The Community Clim...
    initialization_method:        1
    physics_version:              1
    tracking_id:                  651cad2e-e8d8-42ca-862e-a88c9055130c
    acknowledgements:             The CESM project is supported by the Nation...
    cesm_casename:                b40.20th.track1.1deg.012
    cesm_repotag:                 ccsm4_0_beta53
    cesm_compset:                 B20TRCN
    resolution:                   f09_g16 (0.9x1.25_gx1v6)
    forcing_note:                 Additional information on the external forc...
    processed_by:                 strandwg on mirage5 at 20120210  -092055.872
    processing_code_information:  Last Changed Rev: 538 Last Changed Date: 20...
    product:                      output
    experiment:                   historical
    frequency:                    mon
    creation_date:                2012-02-10T16:20:56Z
    history:                      2012-02-10T16:20:56Z 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 histo...
    parent_experiment:            pre-industrial control
    modeling_realm:               atmos
    realization:                  6
    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 1850-01-01 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

(time, plev, lat, lon)

float32

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

standard_name :: air_temperature
long_name :: Air Temperature
units :: K
original_name :: T,PS
comment :: T interpolated to standard plevs
cell_methods :: time: mean (interval: 30 days)
cell_measures :: area: areacella
history :: 2012-02-10T16:20:56Z altered by CMOR: Reordered dimensions, original order: plev lat lon time. 2012-02-10T16:20:56Z altered by CMOR: replaced missing value flag (-1e+32) with standard missing value (1e+20).
associated_files :: baseURL: http://cmip-pcmdi.llnl.gov/CMIP5/dataLocation gridspecFile: gridspec_atmos_fx_CCSM4_historical_r0i0p0.nc areacella: areacella_fx_CCSM4_historical_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: (35)
institution :
NCAR (National Center for Atmospheric Research) Boulder, CO, USA
institute_id :
NCAR
experiment_id :
historical
source :
CCSM4
model_id :
CCSM4
forcing :
Sl GHG Vl SS Ds SD BC MD OC Oz AA LU
parent_experiment_id :
piControl
parent_experiment_rip :
r1i1p1
branch_time :
953.0
contact :
cesm_data@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 :
651cad2e-e8d8-42ca-862e-a88c9055130c
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 :
b40.20th.track1.1deg.012
cesm_repotag :
ccsm4_0_beta53
cesm_compset :
B20TRCN
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 mirage5 at 20120210 -092055.872
processing_code_information :
Last Changed Rev: 538 Last Changed Date: 2012-02-09 16:59:02 -0700 (Thu, 09 Feb 2012) Repository UUID: d2181dbe-5796-6825-dc7f-cbd98591f93d
product :
output
experiment :
historical
frequency :
mon
creation_date :
2012-02-10T16:20:56Z
history :
2012-02-10T16:20:56Z 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 historical
parent_experiment :
pre-industrial control
modeling_realm :
atmos
realization :
6
cmor_version :
2.8.1