Recipe: File naming conventions: Difference between revisions
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| Line 14: | Line 14: | ||
collection | collection | ||
::The operational GEOS-5 data are organized into file collections that contain fields with common characteristics. However, computational considerations required that 3D collections have a single variable in them. Collection names are of the form | ::The operational GEOS-5 data are organized into file collections that contain fields with common characteristics. However, computational considerations required that 3D collections have a single variable in them. Collection names are of the form | ||
::::'''<span style="color:black">freq</span>_<span style="color:blue">dims</span>_<span style="color:red">group</span> | ::::'''<span style="color:black">freq</span>_<span style="color:blue">dims</span>_<span style="color:red">group</span>_HV''' | ||
::where the four attributes (freq,dims,group,HV) are: | ::where the four attributes (freq,dims,group,HV) are: | ||
::'''<span style="color:black">freq</span>''': time-independent ('''<span style="color:black">const</span>'''), instantaneous ('''<span style="color:black">inst</span>''F'' '''), time-average ('''<span style="color:black">tavg</span>''F'' '''), diurnally time-averaged ('''<span style="color:black">tdav<span style="color:black">''F'' ''') where ''' ''F'' ''' indicates the frequency or averaging interval and can be one of the following: | ::'''<span style="color:black">freq</span>''': time-independent ('''<span style="color:black">const</span>'''), instantaneous ('''<span style="color:black">inst</span>''F'' '''), time-average ('''<span style="color:black">tavg</span>''F'' '''), diurnally time-averaged ('''<span style="color:black">tdav<span style="color:black">''F'' ''') where ''' ''F'' ''' indicates the frequency or averaging interval and can be one of the following: | ||
| Line 28: | Line 28: | ||
::A short mnemonic for the type of fields in the collection, or the variable name for single-variable collections. | ::A short mnemonic for the type of fields in the collection, or the variable name for single-variable collections. | ||
''' | '''HV''' | ||
::Horizontal and Vertical grid, where | ::Horizontal and Vertical grid, where | ||
:::H can be: | |||
::::N: Nominal (full) horizontal resolution of lat/lon grid. | |||
::::C: Coarse (reduced) horizontal resolution of lat/lon grid | |||
:::V can be: | |||
::::x: | |||
::::p: | |||
::::v: | |||
::::e: | |||
Revision as of 08:43, 28 October 2014
Problem
We want to understand the file naming conventions of G5NR products
Solution
The standard generic complete name for G5NR products appear as
c1440_NR.collection.timestamp.nc4
where
c1440_NR
- the c1440 token indicates the resolution of the cubed-sphere grid. 14402 is the number of grid points in each face of the cubed-sphere. NR stands for Nature Run.
collection
- The operational GEOS-5 data are organized into file collections that contain fields with common characteristics. However, computational considerations required that 3D collections have a single variable in them. Collection names are of the form
- freq_dims_group_HV
- where the four attributes (freq,dims,group,HV) are:
- freq: time-independent (const), instantaneous (instF ), time-average (tavgF ), diurnally time-averaged (tdavF ) where F indicates the frequency or averaging interval and can be one of the following:
- 30mn = every 30 minutes
- 01hr = hourly
- 01mo = monthly
- The tdavF files typically contain monthly diurnal files, meaning, monthly means for each hour of the day: 0 UTC, 1 UTC, …, 23UTC.
- The operational GEOS-5 data are organized into file collections that contain fields with common characteristics. However, computational considerations required that 3D collections have a single variable in them. Collection names are of the form
dims
- 2d for collections with only 2-dimensional fields or 3d for collections with a mix of 2- and 3-dimensional fields.
group
- A short mnemonic for the type of fields in the collection, or the variable name for single-variable collections.
HV
- Horizontal and Vertical grid, where
- H can be:
- N: Nominal (full) horizontal resolution of lat/lon grid.
- C: Coarse (reduced) horizontal resolution of lat/lon grid
- V can be:
- x:
- p:
- v:
- e:
- H can be:
- Horizontal and Vertical grid, where