This is the old version of the JRN LTER website. Please visit https://lter.jornada.nmsu.edu.
|Data by Research Category|
Dataset: LTER Weather Station daily summary climate data
Daily summary values of averages of readings of the following parameters are made which are based on data recorded on a Campbell CR10(X) data logger: maximum, minimum, and average air temperature; maximum and minimum relative humidity; total precipitation; average wind speed; maximum wind speed; average wind direction; total incoming solar radiation; average soil temperature at 5cm and 20cm; mean dew temperature. From 1983 - 5 June 1991, readings on which daily averages are based were made at 12 second intervals. From 6 June 1991 to present, readings on which daily averages are based are made at 10 second intervals.
Jornada LTER Weather Station location is on the NMSU Chihuahuan Desert Rangeland Research Center (formerly NMSU College Ranch) about 0.5 mile south of College Ranch headquarters. Coordinates for the Weather Station are given below. WGS83 deg min sec UTM: 331192.4E 3599474N LAT 32 31 17 Elevation: 1360 meters LONG 106 47 50 4460 feet
Methodology: Data is downloaded hourly from the remote LTER Weather Station using CSI LogggerNet software. LoggerNet scripts automatically process and append the new data to the existing data file.
From 1983 - 5 June 1991, readings on which daily averages are based were made at 12 second intervals. From 6 June 1991 to present, readings on which daily averages are based are made at 10 second intervals.
(1) mean dew temperature = RESULT where...
a=AIR where AIR is temperature in Celcius
b=(6.1121 * EXP(17.502*a/(241.2+a))) where EXP is "e raised to the xth power"
d=241.2*(LN(c/6.1121))/(17.502-LN(c/6.1121)) where LN is the natural log RESULT(in Celcius) = d