Site description: Midslope, 100 yr forest, Hagan Block RNA
Latitude: 44-10-16 Longitude: 122-25-25 Elevation (MSL): 651 meters
Aspect: 30 degrees Slope: 28 degrees
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Measurement period:: 19770625 - 20040621
Comments:
Daily Variables:
25 Jun 1977 to 28 Jan 1981:
Mean sunrise to sunrise temperature
Mean, max daytime temperature
Mean, min nighttime temperature
28 Jan 1981 to 08 Jan 1987:
Mean, max, min sunrise to sunrise temperature
Mean daytime, mean nighttime temperature
08 Jan 1987 to 09 Apr 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
09 Apr 1998 to 21 Jun 2004:
Mean, max, min daily (midnight to midnight) air temperature
Daily time of max, time of min
Fine Resolution Variables:
09 Apr 1998 to 21 Jun 2004:
Mean hourly air temperature
Sensor height: 100 cm
220 cm (repositioned 01 Oct 1991)
Notes: 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 1987.
Beginning 08 Jan 1987, 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.
On 25 Jul 1987, a CR10 datalogger is installed. The Partlow chart
recorder was maintained until 07 Jun 1990 as a backup, and then removed.
Daytime/nighttime calculation discontinued 09 April 1998.
PROBE 01:
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Measurement period:: 19770625 - 20040621
Comments:
Daily Variables:
25 Jun 1977 to 08 Jan 1987:
Mean sunrise to sunrise temperature only
08 Jan 1987 to 09 Apr 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
09 Apr 1998 to 21 Jun 2004:
Mean, max, min daily (midnight to midnight) soil temperature
Daily time of max, time of min
Fine Resolution Variables:
09 Apr 1998 to 21 Jun 2004:
Mean six-hourly soil temperature
Sensor depth: 20 cm
10, 20, 30 cm (after 25 Jul 1987)
Notes: Soil temperature was digitized on a sunrise to sunrise basis.
After 08 Jan 1987, 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.
On 25 Jul 1987, a CR10 datalogger is installed, and additional soil
depths at 10 and 30 cm are added. The Partlow chart recorder
was maintained until 07 Jun 1990 as a backup, and then removed.
PROBE 01: