Tools for converting World Ocean Atlas, 2005, gridded data from ascii format to netcdf.
This package is an attempt to provide provenance for a netcdf formatted version of the NODC World Ocean Atlas, 2005 (see http://www.nodc.noaa.gov/OC5/WOA05/pr_woa05.html for the dataset).
This package does not supply the data in either original ascii or final netcdf form but DOES record the state and means to download, convert and checksum the data. It therefore provides a documentation of how to obtain the WOA05 in netcdf format.
Everything is driven from a Makefile. To obtain data type
make
and wait a few minutes (performance depends on your network and platform).
To check that everything worked type
git status
which will hopefully tell you that you are no files have been modified. This is checking that the *.md5sums files are consistent with those committed to the repository, i.e. your netcdf files are validated.
| File | Purpose |
|---|---|
| LICENSE | The MIT License |
| Makefile | The Makefile that governs the work-flow |
| README.md | This file |
| python/WOA05_to_netcdf.py* | A tool to read WOA05 ascii data and write it to a netcdf file |
| python/temp2ptemp.py | A tool to derive potential temperature from temperature and salinity |
| python/concatenate_data.py | Concatenates multple monthly files into a single file |
| Checksum file | Purpose |
|---|---|
| tmp/ascii/md5sums | The md5 sums of the unpacked ascii data |
| tmp/converted/md5sums | The md5 sums of the netcdf files corresponding to the ascii data |
| tmp/derived/md5sums | The md5 sums of the derived data |
| final/md5sums | The md5 sums of the final netcdf files |
| File/directory | Purpose |
|---|---|
| tmp/*_climatology_1.tar | climatology files downloaded from NOAA-NODC |
| tmp/ascii/ | Unpacked ascii data |
| tmp/netcdf/ | Will contain the converted data in netcdf files, as well as the CDL of meta-information |
| tmp/derived/ | Will contained derived data such as potential temperature |
| pkg/ | A location for installing python packages |
| final/ | The location of final netcdf files |
Python 2.7 and the netCDF4, numpy python modules.