AZMET provides edited data in comma delimited ASCII format for
use in application and database programs.
There are two types of comma delimited data files:
1) Hourly and 2) Daily.
In all raw data files, the units of measurement are Metric.
1) Hourly summaries contain hourly means and totals for all weather
parameters monitored or calculated by AZMET.
The Raw Hourly Data file will contain hourly data only.
These files can be loaded into programs and data bases.
2) Daily data files contain only the daily data summaries.
The summary format differs slightly from that presented in the
hourly data files. (See below).
All data summaries (both hourly and daily) terminate with a
carriage return line feed character sequence. The rest of
this document identifies the sequence and units for individual
data points within a given data summary. Data points are
identified and described in the order in which they appear in
the file (left to right). NOTE! Data declared bad by AZMET
Editing routines will appear as the integer 9999 or 999.
1) HOURLY DATA FILES
=======================
DATA POINT
NUMBERS --> 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
| | | | | | | | | | | | | | | | |
92,254,1,20.9,42.2,1.4,0,0,25.5,27.6,1.6,1.3,147,33,2.6,.05,.34
DATA --> 92,254,2,19.5,49.8,1.1,0,0,24.8,27,1,.8,192,37,1.5,.03,.28
92,254,3,19.1,51,1.1,0,0,24.2,26.5,1,.8,236,41,2.3,.03,.26
92,254,4,18.1,55.1,.9,0,0,23.7,26,1.3,.8,289,48,2.5,.02,.22
Hourly Summaries
----------------
Data Point # Explanation
1 Year of data. A two-digit number
representing the last two digits
of the year (e.g. 87 means 1987)
2 Day of year. This varies from 1 to
366 depending on the day of the year
and whether the year is Leap Year.
3 Hour of day. Varies from 1 to 24
and represents the time of day the
subsequent data were obtained. For
data representing means and totals,
the time represents the end of the
averaging or totalizing period (e.g.
means and totals obtained at hour 12
represent means and totals over the
60-minute period ending at 12:00).
4 Mean air temperature in degrees Celsius.
5 Mean relative humidity in percent.
6 Mean vapor pressure deficit in kilo-
pascals.
7 Total solar radiation in megajoules per
square meter.
8 Total precipitation in millimeters.
9 Current soil temperature at 5cm
depth in degrees Celsius. Soil surface
is bare. Moved to 10cm in 1999.
10 Current soil temperature at 10cm
depth in degrees Celsius. Soil surface
is bare. Moved to 50cm in 1999.
11 Mean wind speed in meters per second.
12 Wind vector magnitude in meters per
second.
13 Wind vector direction in degrees.
14 Standard deviation of the wind
direction in degrees.
15 Maximum wind speed for hour in meters
per second.
16 Reference crop evapotranspiration in
millimeters.
17 Heat unit (degree day) total for hour.
Heat unit limits are 30 and 12.8 C.
2) DAILY DATA FILES
=======================
DATA POINT
NUMBERS --> 1 2 3 4 5 6 7 8 9 10 11 12 13 14
| | | | | | | | | | | | | |
DATA --> 92,254,6,40.2,15.1,27.6,69.9,7.9,33.5,3.1,23.45,0,38,22.4,
29.3,34.1,24.7,29.1,1.3,.5,14,66,4.2,6.6,12
| | | | | | | | | | |
DATA POINT NUMBERS --> 15 16 17 18 19 20 21 22 23 24 25
* NOTE: Daily data is actually all on one line per day,
it has been put on two lines here to label each data point by number.
Data Point # Explanation
1 Year of data. A two-digit number
representing the last two digits of
the year (e.g. 87 = 1987).
2 Day of year. This varies from 1 to
366 depending on day of year and
whether year is a Leap Year.
3 Station number. Each station has an
assigned number to aid data retrieval
and database management. Listed below
are the locations and their correspond-
ing station numbers:
Station Location Station Location
Number Number
1 Tucson 14 Yuma North Gila
2 Yuma Valley 15 Phoenix Encanto
3 Yuma Mesa 16 Eloy
4 Safford 17 Dateland
5 Coolidge 18 Scottsdale
6 Maricopa 19 Paloma
7 Aguila 20 Mohave
8 Parker 21 Laveen
9 Bonita 22 Queen Creek
10 Waddell, Citrus Farm 23 Harquahala
11 Litchfield 24 Roll
12 Phoenix Greenwa 25 Ciudad Obregon
13 Marana 26 Buckeye
27 Desert Ridge
28 Mohave-2
29 Mesa
30 Flagstaff
31 Prescott
32 Payson
33 Bowie
34 Kansas Settlement
35 Parker-2
36 Yuma South
37 San Simon
38 Sahuarita
4 Maximum air temperature in degrees
Celsius.
5 Minimum air temperature in degrees
Celsius.
6 Mean air temperature in degrees
Celsius.
7 Maximum relative humidity in percent.
8 Minimum relative humidity in percent.
9 Mean relative humidity in percent.
10 Mean vapor pressure deficit in kilo-
pascals.
11 Total solar radiation in megajoules per
square meter.
12 Total precipitation in millimeters.
13 Maximum soil temperature at 5cm depth
in degrees Celsius. Bare soil surface.
Moved to 10cm in 1999.
14 Minimum soil temperature at 5cm depth
in degrees Celsius. Bare soil surface.
Moved to 10cm in 1999.
15 Mean soil temperature at 5 cm depth in
degrees Celsius. Bare soil surface.
Moved to 10cm in 1999.
16 Maximum soil temperature at 10cm depth
in degrees Celsius. Bare soil surface.
Moved to 50cm in 1999.
17 Minimum soil temperature at 10cm depth
in degrees Celsius. Bare soil surface.
Moved to 50cm in 1999.
18 Mean soil temperature at 10cm depth in
degrees Celsius. Bare soil surface.
Moved to 50cm in 1999.
19 Mean wind speed in meters per second.
20 Wind vector magnitude in meters per
second.
21 Wind vector direction in degrees.
22 Wind direction standard deviation in
degrees.
23 Maximum wind speed in meters per second.
24 Total reference evapotranspiration in
millimeters.
25 Daily heat unit (degree day) total.
Heat unit limits are 30 and 12.8 C.