GHCN

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Global Historical Climatology Network

We replicated the daily station precipitation data from GHCN. GHCN-Daily is an integrated database of daily climate summaries from land surface stations across the globe. It is comprised of daily climate records from numerous sources that have been integrated and subjected to a common suite of quality assurance reviews and contains records from over 100,000 stations in 180 countries and territories. This is an extract of the dataset description from the NOAA website where you can find more information on this data. We replicated only the precipitation daily station data organised "by_year". This is an alternate form of the GHCN Daily dataset.  The period of record station files are parsed into  yearly files that contain all available GHCN Daily station data for that year 
plus a time of observation field (where available). The original by_year files are updated daily to be in sync with updates to the GHCN Daily dataset, but we are updating them on a weekly basis.

More details on how the data is organised and its status are available from the documentation files stored with the data. For more information on methods and data quality assurance: [[1]]

License

Data is freely available but there are restrictions on commercial use, from their data access policy:

Some of the data provided here are based on data exchanged under the World Meteorological Organization (WMO) World Weather Watch Program according to WMO Resolution 40 (Cg-XII)(link is external). This allows WMO member countries to place restrictions on the use or re-export of their data for commercial purposes outside of the receiving country. Those country's data summaries and products which are available here are intended for free and unrestricted use in research, education, and other non-commercial activities. For non-U.S. locations, the data or any derived product shall not be provided to other users or be used for their re-export for commercial services.

For references: [[2]]

GHCN at NCI

GHCN is available on gadi under the ua8 project.

/g/data/ua8/GHNC/daily/by_year

The files are ascii format: YYYY.csv

The files format is described in /g/data/ua8/GHCN/ghcn-daily-by_year-format.rtf