AZMET Raw Hourly Data

Raw Hourly Data Format

AZMET offers two types of comma delimited (ASCII format) data files: Hourly and Daily. These files can be loaded into a spreadsheet or database such as Lotus, Quatro, Paradox, Fox Pro, DBase, Surfer, etc. These data files can also be can also be utilized by a custom program written in Basic, Fortran, Pascal or C language. In all raw data files, the units of measurement are Metric.

Also please read : How AZMET data is gathered .

In 1999 we changed the depths of our soil temperature sensors : 1999 Soil Temperature Depths .

HOURLY 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 Data Point Description -------- ----------------------- 1 A Year (86,87,88,89,90 etc) 2 B Day of Year 3 C Hour of Day 4 D Air Temp. 5 E Rel. Humidity 6 F Vapor Pressure Deficit 7 G Solar Radiation 8 H Precipitation 9 I 2" Soil Temp. (moved to 4" in 1999) 10 J 4" Soil Temp. (moved to 20" in 1999) 11 K Wind Speed (Ave) 12 L Wind Vector Magnitude 13 M Wind Vector Direction 14 N Wind Direction Standard Deviation 15 O Max Wind Speed 16 P Reference ET 17 Q Heat Units (30/12.8 C) (86/55 F)
AZMET Units of Measurement
Conversion Factors

AZMET weather stations record and store data in metric units.
The data contained in our Raw Hourly and Daily files is in metric units.
The word 'English' here does not refer to the language.
'English' units are those units of measurements which were standardized
and used throughout Great Britain.

METRIC ABBR. UNITS ============= ================================= Air Temperature................... DegC .... Degrees Centigrade Relative Humidity................. % ....... Percent Vapor Pressure Deficit............ KPas .... Kilopascals Solar Radiation................... MJ/Sq M . MegaJoules per Square Meter Precipitation..................... MM ...... Millimeters Soil Temperature.................. DegC .... Degrees Centigrade Wind Speed........................ M/S ..... Meters per Second Wind Vector Magnitude............. M/S ..... Meters per Second Wind Vector Direction............. Deg ..... Degrees Wind Direction Standard Deviation. Deg ..... Degrees Reference Evapotranspiration...... MM ...... Millimeters Heat Units........................ HU ...... Heat Units in Centigrade ENGLISH ABBR. UNITS ============= =================================== Air Temperature................... DegF ... Degrees Fahrenheit Relative Humidity................. % ...... Percent Vapor Pressure Deficit............ KPas ... Kilopascals Solar Radiation................... -- ..... Langleys Precipitation..................... In ..... Inches Soil Temperature.................. DegF ... Degrees Fahrenheit Wind Speed........................ MPH .... Miles per Hour Wind Vector Magnitude............. MPH .... Miles per Hour Wind Vector Direction............. Deg .... Degrees Wind Direction Standard Deviation. Deg .... Degrees Reference Evapotranspiration...... In ..... Inches Heat Units........................ HU ..... Heat Units in Fahrenheit METRIC CONVERSION ENGLISH UNITS -----> UNITS =================================== Air Temperature................... DegC * 1.8 + 32 DegF Relative Humidity................. % -none- % Vapor Pressure Deficit............ KPas -none- KPas Solar Radiation................... MJ/Sq M * 23.89 Langleys Precipitation..................... MM * .03937 Inches Soil Temperature.................. DegC * 1.8 + 32 DegF Wind Speed........................ M/S * 2.237 MPH Wind Vector Magnitude............. M/S * 2.237 MPH Wind Vector Direction............. Deg -none- Deg Wind Direction Standard Deviation. Deg -none- Deg Reference Evapotranspiration...... MM * .03937 Inches Heat Units........................ (C) * 1.8 (F) The '*' symbol means "multiply by"