Site description: Clearcut Nov 1986, natural regeneration
Latitude: 44-14-36 Longitude: 122- 8-30 Elevation (MSL): 1018 meters
Aspect: 260 degrees Slope: 12 degrees
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Measurement period:: 19950823 - Present
Comments:
Daily Variables:
23 Aug 1995 to Present:
Mean, max, min daily (midnight to midnight) temperature
Daily time of max, time of min
Fine Resolution Variables:
23 Aug 1995 to Present:
15 minute mean air temperature
Sensor height: 150 cm (probe 04)
250 cm (probe 03)
350 cm (probe 02)
450 cm (probe 01)
Notes: In August. 1995, the station was established with an array of probes
on a tower at 150,250,350,450 cm heights.
CR10 samples every 15 seconds.
PROBE 01:
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DEW POINT TEMPERATURE (CENMET)
Measurement period:: 19950823 - Present
Comments:
Daily Variables:
23 Aug 1995 to Present:
Mean, min, max, daily dewpoint temperature
Time of max, time of min
Fine Resolution Variables:
23 Aug 1995 to Present:
Mean hourly dewpoint temperature
Sensor height: 150 cm (probe 04)
450 cm (probe 01)
Notes: Dewpoint values are calculated from air temperature
and relative humidity probes.
PROBE 01:
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Measurement period:: 19950823 - Present
Comments:
Daily Variables:
23 Aug 1995 to Present : Daily precipitation (shelter gage)
03 Nov 2000 to Present: Daily precipitation (stand-alone gage)
Fine Resolution:
23 Aug 1995 to Present: 15 minute precipitation (shelter gage)
03 Nov 2000 to Present: 15 minute precipitation (stand-alone gage)
Status: Two raingages are now in operation.
The shelter gage is located on top of our station shelter
and heated through ducts from the shelter's propane heating
system. This gage has also improved catch over the more
traditionally heated raingages. However, it is protected only with
an alter wind shield. The stand-alone gage initiated 3 Nov 2000 has a
heated orifice and protective Valdais shield (fencing around gage).
A standard rain gage was operational 23 Aug 1995 to 26 Oct 2000.
Notes: Campbell data logger samples every 15 seconds
PROBE 01:
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Measurement period:: 19950823 - Present
Comments:
Daily Variables:
23 Aug 1995 to Present:
Mean, max, min daily (midnight to midnight) relative humidity
Time of max, time of min for daily relative humidity
Fine Resolution Variables:
23 Aug 1995 to Present:
Hourly relative humidity
Sensor height: 150 cm (probe 04)
450 cm (probe 01)
Notes: CR10 samples every 15 seconds.
PROBE 01:
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Measurement period:: 19951130 - Present
Comments:
Daily Variables:
30 Nov 1995 to Present :
Daily snow lysimeter runoff
Fine Resolution Variables:
30 Nov 1995 to Present :
5 minute snow lysimeter runoff
Notes: Tipping bucket tips are summarized by 5 minute intervals
on a CR10 recorder. An event counter totals the number of tips
over the collection period as a check.
PROBE 01:
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SNOW MOISTURE AND DEPTH (CENMET)
Measurement period:: 19941202 - Present
Comments:
Fine Resolution Variables:
15 Oct 1996 to Present:
5 minute snow moisture in water equivalence
23 Jan 1998 to Present:
5 minute snow depth
Periodic measurement variables:
02 Dec 1994 to Present
Periodic measurement of depth and calculated snow water (probe 02)
Periodic measurement of snow moisture and depth (probe 03)
- average snow course measurement along transect near the station
Notes: The high resolution 5 minute data file is reduced to eliminate points
when both snow moisture and depth are unchanging, and is displayed
with snow water equivalence value. These sensors were initially installed
on 27 Aug 1996, but sensor problems prevented proper functioning of
the snow pillow until Fall 1996 and snow depth sensor until 1998.
CR10 samples every 15 seconds.
PROBE 01:
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Measurement period:: 20021104 - Present
Comments:
Daily Variables:
4 Nov 2001 to Present:
Mean, max, min soil moisture
Time of max, time of min
Sensor depth: 10,20,50,100
Notes: Water content reflectometer. Daily values only.
PROBE 01:
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SOIL MOISTURE POTENTIAL (CENMET)
Measurement period:: 19950823 - 20021113
Comments:
Daily Variables:
23 Aug 1995 to 13 Nov 2002:
Mean, max, min soil moisture potential
Time of max, time of min
Sensor depth: 10,20,50,100
Notes: Gypsum block measurements. Daily values only.
PROBE 01:
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Measurement period:: 19950823 - Present
Comments:
Daily Variables:
23 Aug 1995 to Present:
Mean, max, min daily (midnight to midnight) temperature
Daily time of max, time of min
Fine Resolution Variables:
23 Aug 1995 to Present:
Mean hourly soil temperature
Sensor depth: 10,20,50,100
Notes: In Aug 1995, an array of temperature probes are
established at 10, 20, 50, 100 cm depths
CR10 samples every 15 seconds.
PROBE 01:
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Measurement period:: 19950823 - Present
Comments:
Daily Variables:
23 Aug 1995 to Present:
Total and max daily incoming solar radiation
Time of max
High Resolution Variables:
23 Aug 1995 to Present:
Total incoming solar radiation in megaJoules per meter squared per 15 minutes
Sensor height: 627 cm
Notes: Max solar radiation is maximum rate of incoming solar radiation as
watts per meter squared. All MAXSOLAR values were originally collected as
Langleys per minute from 23 Aug 1995 to 26 July 2007 were converted to
watts per meter squared. The time of max is accurate to the minute.
TOTSOLAR values are megaJoules per meter squared over the given time interval.
Values were originally collected as total Langleys over the given time interval from
23 Aug 1995 to 26 July 2007 but were converted to megaJoules per meter squared.
Conversions occurred in Nov 2009.
PROBE 01:
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SOLAR RADIATION (PAR) (CENMET)
Measurement period:: 19980123 - Present
Comments:
Daily Variables:
23 Jan 1998 to Present:
Mean and max daily photosynthetically active radiation (PAR)
Time of max
High Resolution Variables:
23 Jan 1998 to Present:
Mean PAR in 15 minute intervals
Sensor height: 627 cm
Notes: Max solar radiation is based on instantaneous micromoles per second per square meter, and
the time of max is accurate to the minute.
It is common for solar radiation sensors to read negative at night (-1 to -7). Negative nighttime
readings are changed to 0. The daily values average in these negative values, creating a minor
error in the daily values.
PROBE 01:
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WATER VAPOR PRESSURE DEFICIT (CENMET)
Measurement period:: 19960110 - Present
Comments:
Daily Variables:
10 Jan 1996 to Present:
Mean, min, max, daily vapor pressure deficit
Time of max, time of min
Fine Resolution Variables:
10 Jan 1996 to Present:
Mean hourly vapor pressure deficit
Sensor height: 150 cm (probe 04)
450 cm (probe 01)
Notes: Vapor pessure deficit values are calculated from air temperature
and relative humidity probes every 15 seconds (in millibars).
PROBE 01:
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WIND SPEED AND DIRECTION (CENMET)
Measurement period:: 19950823 - Present
Comments:
Daily Variables:
23 Aug 1995 to Present:
Daily mean and max wind speed, resultant mean wind vector magnitude
Time of max wind speed
01 Mar 1996 to Present:
Resultant mean daily wind vector direction, standard deviation,
Daily wind direction vector components (Wind Rose).
Fine Resolution Variables:
23 Aug 1995 to Present:
Hourly mean wind speed, resultant mean wind vector magnitude
01 Mar 1996 to Present:
Resultant mean hourly wind vector direction, standard deviation,
Sensor height: 23 Aug 1995 to Present: 1000 cm
Notes: A CR10 program malfunction kept wind direction from operating correctly until
March,1996. CR10 samples every 15 seconds.
PROBE 01: