This NDP includes four data files that contain time series of monthly climatic measurements. The first (temp.data) consists of mean monthly temperature data in tenths of degrees Celsius. The second (precip.data) consists of total monthly precipitation data in tenths of millimeters. The third (press.sea.data) consists of mean monthly sea level pressure data in tenths of millibars. The fourth (press.sta.data) consists of mean monthly station pressure data in tenths of millibars.
These four files only contain climate data. Flag codes indicating the source and reliability of each monthly value have also been compiled. These codes are archived in four flag code files which are described in a later section. The reader is strongly encouraged to utilize these flag codes in his/her analysis.
Each logical record in the climate data files contains a country identification number, a station identification number, a year, and 12 monthly data values. Each file is sorted by station number and year and can be read using the following FORTRAN IV code:
INTEGER COUNTRY, STATION, YEAR, MONTH(12)
READ (1, 1, END=99) COUNTRY, STATION, YEAR, (MONTH(J), J = 1, 12)
1 FORMAT (I3, I7, I4, 12I5)
These files can also be read using the following SAS code:
INPUT COUNTRY 1-3 STATION 4-10 YEAR 11-14 (MONTH1-MONTH12) (5.);
Stated in tabular form, the contents include the following:
Variable |
Variable type |
Variable width |
Starting column |
Ending column |
COUNTRY STATION YEAR MONTH1 MONTH2 MONTH3 MONTH4 MONTH5 MONTH6 MONTH7 MONTH8 MONTH9 MONTH10 MONTH11 MONTH12 |
Numeric Numeric Numeric Numeric Numeric Numeric Numeric Numeric Numeric Numeric Numeric Numeric Numeric Numeric Numeric |
3 7 4 5 5 5 5 5 5 5 5 5 5 5 5 |
1 4 11 15 20 25 30 35 40 45 50 55 60 65 70 |
3 10 14 19 24 29 34 39 44 49 54 59 64 69 74 |
where
COUNTRY |
is a three-digit country code (e.g., 404 = United States of America, etc.). |
STATION |
is a seven-digit station identification number. In most cases, the last two digits of this variable are 00, and the first five digits are the station's normal WMO number (e.g., 1234500). For some stations, no WMO number was currently in use. In these cases, the last two digits of STATION are other than 00, and the first five digits are the WMO number of the nearest active WMO station (e.g., 1234501). |
YEAR |
is the year of the data record. |
MONTH(1-12) |
are the monthly data values. Missing data values are coded as -9999. Mean monthly temperatures are in tenths of degrees celsius. Monthly precipitation totals are in tenths of millimeters, with trace totals coded as -8888. Mean monthly sea level pressures and mean monthly station pressures are in tenths of millibars. |
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