Introduction

The -csv option writes the grid values to a specified file as a comma separated values (text) which can be imported into a spread sheet. This function is similar to -text with a different output.

   "time0","time1","field","level",longitude,latitude,grid-value

Time0 is the reference time, that is usually the analysis or start of the forecast time. Time1 is the verification time. For analyses, Time0 and Time1 will be the same.

The -csv option only works on the grids for which wgrib2 can derive latitude and longitudes values. Otherwise no output is generated. The undefined value is 9.999e20.

Use the -undefine option to limit the output to certain regions.

Usage

-csv output_file_name

Example

$ wgrib2 fcst.grb2 -csv junk 
1:0:d=2007032600:HGT:1000 mb:anl:
2:125535:d=2007032600:HGT:1000 mb:3 hour fcst:
$ cat junk 
"2007-03-26 00:00:00","2007-03-26 00:00:00","HGT","1000 mb",0,-90,164.1
"2007-03-26 00:00:00","2007-03-26 00:00:00","HGT","1000 mb",0.5,-90,164.1
"2007-03-26 00:00:00","2007-03-26 00:00:00","HGT","1000 mb",1,-90,164.1
"2007-03-26 00:00:00","2007-03-26 00:00:00","HGT","1000 mb",1.5,-90,164.1
...
"2007-03-26 00:00:00","2007-03-26 03:00:00","HGT","1000 mb",-1.5,90,-91.7
"2007-03-26 00:00:00","2007-03-26 03:00:00","HGT","1000 mb",-1,90,-91.7
"2007-03-26 00:00:00","2007-03-26 03:00:00","HGT","1000 mb",-0.5,90,-91.7

See also: -spread, -text, -bin, -ieee, -undefine