Changes between Initial Version and Version 1 of Variables


Ignore:
Timestamp:
10/31/06 14:03:40 (13 years ago)
Author:
dstuebe
Comment:

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  • Variables

    v1 v1  
     1= Variables =
     2
     3Variables are variables, they should be very similar to the existing CF Conventions, but certain meta data should be added due the complexity of unstructured grid data.
     4
     5== Variable Meta Data additions for unstructured grids ==
     6 * Connectivity variables
     7  * MeshMetaData
     8 * The coordinate variables
     9  * the name of the mesh it belongs to
     10 * Data variables
     11   * the name of the mesh it belongs to
     12   * The location of the data on the cell
     13
     14== Examples ==
     15
     16=== Data CDL ===
     17
     18Data at nodes in a non sigma coordinate mesh
     19{{{
     20float SomeData(time,Nodes)
     21        SomeData:standard_name = "this data"
     22        SomeData:Mesh = "MESH A"
     23        SomeData:Location = "NODECENT"
     24        SomeData:valid_min = "xx"
     25        SomeData:valid_max = "yy"
     26}}}
     27
     28Data at nodes in a sigma coordinate mesh
     29{{{
     30float MoreData(time,levels, Nodes)
     31        MoreData:standard_name = "that data"
     32        MoreData:Mesh = "MESH B"
     33        MoreData:Location = "NODECENT
     34        MoreData:valid_min = "xx"
     35        MoreData:valid_max = "yy"
     36}}}
     37
     38Data at Cell centers in a sigma coordinate mesh
     39{{{
     40float lastData(time, layers, Cells)
     41        lastData:standard_name = "which data?"
     42        lastData:Mesh = "MESH C"
     43        lastData:Location = "CELLCENT"
     44        lastData:valid_min = "xx"
     45        lastData:valid_max = "yy"
     46}}}
     47
     48Data at cell edges
     49{{{
     50float LessData(time, Edges)
     51        LessData:standard_name = "whos data?"
     52        LessData:Mesh = "MESH D"
     53        LessData:Location = "EDGECENT
     54        LessData:valid_min = "xx"
     55        LessData:valid_max = "yy"
     56}}}
     57
     58Data at cell faces
     59{{{
     60float ItsData(time, Faces)
     61        ItsData:standard_name = "why data?"
     62        ItsData:Mesh = "MESH D"
     63        ItsData:Location = "FACECENT
     64        ItsData:valid_min = "xx"
     65        ItsData:valid_max = "yy"
     66}}}