The GDCN data can be found here.
COUNTRY CODES
The country code key is located
here.
DATA MEASUREMENT FLAG (DMFlag)
- | No data measurement information (Tx,Tn,Pr) | |
65 | - | Accumulated precipitation value (Pr) |
67 | - | Begin or continuing precipitation accumulation (Pr) |
69 | - | Estimated value provided by source (Pr) |
72 | - | Accumulated precipitation indicated by source, however
no accumulated precipitation value was provided (Pr) |
74 | - | Source provided accumulated precipitation value, however
no information on accumulation period was provided(Pr) |
84 | - | Trace accumulation reported by source (Pr) |
- | No quality control information (Tx,Tn,Pr) | |
70 | - | Failed source quality control (Tx,Tn,Pr) |
83 | - | Suspect value identified by source (Tx,Tn,Pr) |
88 | - | Exceeds known world daily extreme for that particular
element (Krause and Flood, 1997) (Tx,Tn,Pr) |
79 | - | Temperature value is greater than or equal to 6.0 bi-weight
standard deviations from the period bi-weight mean (Tx,Tn) |
5 | - | Temperature value is greater than or equal to 5.0 and less
than 6.0 bi-weight standard deviations from the period bi-weight mean (Tx,Tn) |
4 | - | Temperature value is greater than or equal to 4.0 and less
than 5.0 bi-weight standard deviations from the period bi-weight mean (Tx,Tn) |
3 | - | Temperature value is greater than or equal to 3.0 and less
than 4.0 bi-weight standard deviations from the period bi-weight mean (Tx,Tn) |
75 | - | Streak value (value occurs 10 or more days in a row).
Note 0.0 mm precipitation values are excluded. (Tx,Tn,Pr) |
69 | - | Extreme precipitation value ( >= 90th percentile of all observations
within that month for the period on record). (Pr) |
73 | - | Internal consistency error, minimum temperature value greater than
same day maximum temperature value (Tx,Tn) |
Note: A list of stations with potentially inconsistent accumulated precipitation observing practices can be found here. More information can be found on page 14 of the official documentation.
Note: A portion of the stations were given new ids to facilitate their entry into the Data Library. A list of these stations, along with their original and new ids, can be found here.
Full documentation for this dataset can be obtained from NCDC.