Daily Means, Monthly Means and Extremes
Data Format
Digital Daily Means, Monthly Means and Monthly Instantaneous Extremes data are available in standard 80-character length record format, with missing data represented by 9's, as follows:
SAMPLE:
---------0---------0---------0---------0---------0---------0---------0---------0
- 65 1919 7 SAINT JOHN N B 4516 6603 AST
5 65 1919 7 110 424 436 446 454 448 443 436 429 424 428
5 65 1919 71120 434 426 418 417 416 420 419 426 429 436
5 65 1919 72131 4310 436 442 434 431 426 420 418 431 436 436 438
6 65 1919 7 9999999999999999999999
HEADER RECORD:
BYTE DESCRIPTION
---- -----------
1 1 character field, data code, minus sign
2 blank
3-7 5-digit integer, right-justified, unique station
identification number
8 blank
9-12 4-digit integer, year
13-14 2-digit integer, month
15-20 blank
21-52 32 character field, station identification name
53-59 blank
60 1-digit integer, code - 1 elevation in 1/100 feet
2 elevation in centimeters
61-64 4-digit integer, latitute in degrees and minutes
65-69 5-digit integer, longitude in degrees and minutes
70 blank
71-75 bench mark elevation
76-78 3 character field, time zone
79 datum code
DATA RECORD - DAILY MEANS:
BYTE DESCRIPTION
---- -----------
1 1 character field, card code, 5 or N
2 blank
3-7 5-digit integer, right-justified, unique station
identification number
8 blank
9-12 4-digit integer, year
13-14 2-digit integer, month
15-16 2-digit integer, day of first record on the line
17-18 2-digit integer, day of last record on the line
19-24 6-digit integer, monthly mean (on third dm data line only)
in millimeters
25-29 5-digit integer, daily mean for 1st, 11th or 21st day in
centimeters unless indicated by card code 1 in position 60
of header record
30-34 5-digit integer, daily mean
DATA RECORD - MONTHLY EXTREMES:
BYTE DESCRIPTION
---- -----------
1 1-digit integer, card code 6
2 blank
3-7 5-digit integer, right-justified, unique station
identification number
8 blank
9-12 4-digit integer, year
13-14 2-digit integer, month
15-19 blank
20-21 2-digit integer, day of instantaneous high
22-25 4-digit integer, time in HHMM of instantaneous high
26-30 5-digit integer, elevation in centimeters of high
31-32 2-digit integer, day of instantaneous low
33-36 4-digit integer, time in HHMM of instantaneous low
37-41 5-digit integer, elevation in centimeters of low