User Tools

Site Tools


other:python:jyp_steps

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision Both sides next revision
other:python:jyp_steps [2023/12/15 14:45]
jypeter [Data file formats] Added link to the NetCDF section
other:python:jyp_steps [2023/12/15 14:53]
jypeter Moved cdms2 below xarray
Line 173: Line 173:
  
   * There may be different ways of dealing with NetCDF files, depending on which [[other:​python:​starting#​some_python_distributions|python distribution]] you have access to   * There may be different ways of dealing with NetCDF files, depending on which [[other:​python:​starting#​some_python_distributions|python distribution]] you have access to
- 
-==== cdms2 ==== 
- 
-Summary: cdms2 can read/write netCDF files (and read //grads// dat+ctl files) and provides a higher level interface than netCDF4. cdms2 is available in the [[other:​python:​starting#​cdat|CDAT distribution]],​ and can theoretically be installed independently of CDAT (e.g. it will be installed when you install [[https://​cmor.llnl.gov/​mydoc_cmor3_conda/​|CMOR in conda)]]. When you can use cdms2, you also have access to //cdtime//, that is very useful for handling time axis data. 
- 
-How to get started: 
-  - read [[http://​www.lsce.ipsl.fr/​Phocea/​file.php?​class=page&​file=5/​pythonCDAT_jyp_2sur2_070306.pdf|JYP'​s cdms tutorial]], starting at page 54 
-    - the tutorial is in French (soooorry!) 
-    - you have to replace //cdms// with **cdms2**, and //MV// with **MV2** (sooorry about that, the tutorial was written when CDAT was based on //Numeric// instead of //numpy// to handle array data) 
-  - read the [[http://​cdms.readthedocs.io/​en/​docstanya/​index.html|official cdms documentation]] (link may change) 
  
 ==== xarray ==== ==== xarray ====
Line 194: Line 184:
   * [[https://​docs.xarray.dev/​en/​stable/​generated/​xarray.tutorial.load_dataset.html|xarray test datasets]]   * [[https://​docs.xarray.dev/​en/​stable/​generated/​xarray.tutorial.load_dataset.html|xarray test datasets]]
  
-  * [[https://​xcdat.readthedocs.io/​|xcdat]]: xarray extended with Climate Data Analysis Tools+  ​* **[[https://​xcdat.readthedocs.io/​|xCDAT]]: ''​xarray'' ​extended with Climate Data Analysis Tools**
  
   * [[https://​xoa.readthedocs.io/​en/​latest/​|xoa]]:​ xarray-based ocean analysis library   * [[https://​xoa.readthedocs.io/​en/​latest/​|xoa]]:​ xarray-based ocean analysis library
Line 200: Line 190:
   * [[https://​uxarray.readthedocs.io/​|uxarray]]:​ provide xarray styled functionality for unstructured grid datasets following [[https://​ugrid-conventions.github.io/​ugrid-conventions/​|UGRID Conventions]]   * [[https://​uxarray.readthedocs.io/​|uxarray]]:​ provide xarray styled functionality for unstructured grid datasets following [[https://​ugrid-conventions.github.io/​ugrid-conventions/​|UGRID Conventions]]
  
 +
 +==== cdms2 ====
 +
 +<note important>''​cdms2''​ is unfortunately not maintained anymore and is slowly being **phased out in favor of a combination of [[#​xarray|xarray]] and [[https://​xcdat.readthedocs.io/​|xCDAT]]**</​note>​
 +
 +Summary: cdms2 can read/write netCDF files (and read //grads// dat+ctl files) and provides a higher level interface than netCDF4. cdms2 is available in the [[other:​python:​starting#​cdat|CDAT distribution]],​ and can theoretically be installed independently of CDAT (e.g. it will be installed when you install [[https://​cmor.llnl.gov/​mydoc_cmor3_conda/​|CMOR in conda)]]. When you can use cdms2, you also have access to //cdtime//, that is very useful for handling time axis data.
 +
 +How to get started:
 +  - read [[http://​www.lsce.ipsl.fr/​Phocea/​file.php?​class=page&​file=5/​pythonCDAT_jyp_2sur2_070306.pdf|JYP'​s cdms tutorial]], starting at page 54
 +    - the tutorial is in French (soooorry!)
 +    - you have to replace //cdms// with **cdms2**, and //MV// with **MV2** (sooorry about that, the tutorial was written when CDAT was based on //Numeric// instead of //numpy// to handle array data)
 +  - read the [[http://​cdms.readthedocs.io/​en/​docstanya/​index.html|official cdms documentation]] (link may change)
  
  
other/python/jyp_steps.txt · Last modified: 2024/03/07 10:15 by jypeter