Site Meteorological Measurements

REFERENCE STAND #10 (RS10__)

Site description: Midslope on bench; Habitat type Tshe/Rhma/Gash

Map elevation: 610 meters

(No GPS data for this point.)

Aspect: 170 degrees Slope: 6 degrees

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AIR TEMPERATURE (RS10__)

Measurement period:: 19710429 - Present

Comments:

Daily Variables:
29 Apr 1971 to 27 Dec 1972:
Mean, max, min sunrise to sunrise temperature
Mean daytime, mean nighttime temperature
27 Dec 1972 to 20 Jan 1981:
Mean sunrise to sunrise temperature
Mean, max daytime temperature
Mean, min nighttime temperature
20 Jan 1981 to 08 Jan 1982:
Mean, max, min sunrise to sunrise temperature
Mean daytime, mean nighttime temperature
08 Jan 1982 to 14 May 1998:
Mean, max, min daily (midnight to midnight) temperature
Mean, max, min daytime temperature
Mean, max, min nighttime temperature
Time of max, time of min for daily, daytime, nighttime
14 May 1998 to Present:
Mean, max, min daily (midnight to midnight) air temperature
Daily time of max, time of min

Fine Resolution Variables:
14 May 1998 to Present:
Mean hourly air temperature

Sensor height: 100 cm
190 cm (repositioned 01 Oct 1991)
200 cm (repositioned 14 May 1998)

Notes: Before 27 Dec 1972, daytime length was determined for the 15th of the
month, and used for the entire month. After this time, an algorithm
was developed to determine daily day length. Changes in measured
temperature parameters were due to changes in the digitizing program
used to process chart data. All daily summaries are based on a
sunrise to sunrise day before 08 Jan 1982.
Beginning 08 Jan 1982, a true daily summary is available due to the use
of a revised digitizing program. The revised program produces output
similar to the CR10 dataloggers used for thermographs.
CR500 installed 14 may 1998 and daytime/nighttime calculation discontinued.

PROBE 01:

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SOIL TEMPERATURE (RS10__)

Measurement period:: 19710429 - Present

Comments:

Daily Variables:
29 Apr 1971 to 08 Jan 1982:
Mean sunrise to sunrise temperature only
08 Jan 1982 to 14 May 1998:
Mean, max, min daily (midnight to midnight) temperature
Mean, max, min daytime temperature
Mean, max, min nighttime temperature
Time of max, time of min for daily, daytime, nighttime
14 May 1998 to Present:
Mean, max, min daily (midnight to midnight) soil temperature
Daily time of max, time of min

Fine Resolution Variables:
14 May 1998 to Present:
Mean six-hourly soil temperature

Sensor depth: 20 cm
10, 20, 30 cm (after 14 May 1998)

Notes: Soil temperature was digitized on a sunrise to sunrise basis.
After 08 Jan 1982, a true daily summary is available due to the use
of a revised digitizing program. The revised program produces
output similar to the CR10 dataloggers used for thermographs.
CR500 data logger installed and daytime/nighttime calculation
discontinued 14 May 1998.

PROBE 01:

PROBE 02:

PROBE 03: