NetSTORM can read two NCDC surface airways data formats as formatted by UCAR. It can produce an hourly time series of dry-bulb temperature from 1948-1984 data (TD-14 format as described at the UCAR website) or of any data element included in 1984-2005 data (TD-3280 format, now known as DSI-3280). The output is tabbed to facilitate transfer to SWMM 5 timeseries, spreadsheets, and databases. The output data are not used elsewhere in NetSTORM. A full description of the TD-3280 format is available from NOAA. The dataset contains first-order stations identified by NCDC WBAN codes. For post-1983 data, the user may select a data type from the list in the program dialog corresponding with these NOAA four-letter codes:
Element |
Explanation |
ALTP |
altimeter setting |
C2C3 |
sky cover 1st 2 & 1st 3 layers |
CC51 |
sky condition pre-JUN 1951 |
CLC1 |
1st cloud layer amount |
CLC2 |
2nd cloud layer amount |
CLC3 |
3rd cloud layer amount |
CLC4 |
4th cloud layer amount |
CLHT |
ceiling height |
CLT1 |
1st cloud layer type & Z |
CLT2 |
2nd cloud layer type & Z |
CLT3 |
3rd cloud layer type & Z |
CLT4 |
4th cloud layer type & Z |
DPTP |
dew point temperature |
DRAD |
direct radiation |
GRAD |
global radiation |
HZVS |
horizontal visibility |
PRES |
station pressure |
PWTH |
present weather |
RHUM |
relative humidity |
SLVP |
sea level pressure |
TMPD |
dry bulb temperature |
TMPW |
wet bulb temperature |
TSKC |
total & opaque sky cover |
WD16 |
16pt WBAN direction speed |
WIND |
wind direction and speed |
The TD-14 UCAR format (1948-1983) is shown here:
station lat long elev tz year mon day hr .........data fields 2 through 44 .......... >
14733 4293 28126 215 5 1946 1 1 6 7 10 15 40 1 270 16 216 215 213 0 88 10081 2898 0 0
14733 4293 28126 215 5 1946 1 1 7 7 9 15 20 1 270 12 216 214 206 0 64 10091 2900 0 0
14733 4293 28126 215 5 1946 1 1 8 7 7 15 8 1 293 10 216 215 211 0 80 10098 2902 0 0
The TD-3280 UCAR format (1984-2005) is shown here:
type, station, type, units, year, mo, da, s1, s2, #values, hour, value, f1, f2, hour, value, f1, f2,
HLY, 14732, C2C3, N1, 1984, 1, 1, 1, 1, 3, , , , , , , , ,
HLY, 14732, CLC1, N1, 1984, 1, 1, 1, 1, 24, 0000, 00099, , 0, 0100, 00099, , 0,
HLY, 14732, CLC2, N1, 1984, 1, 1, 1, 1, 9, , , , , , , , ,
The resulting tab-delimited output format is shown here:
;NCDC TMPD data for WBAN station 014732 read by NetSTORM from C:\td3280.dat
01/01/1984 1:00 27
01/01/1984 2:00 26
01/01/1984 3:00 26
In the output, hour 0-23 is used through 1983; hour 1-24 thereafter. M following the value indicates missing data; the last good reading is substituted.