.../cheas/micromet/wdepth/rawdata/wdepth_30min_readme.txt

Combined data from all ChEAS surface water depth stations
Prepared by Bruce D. Cook, University of Minnesota (brucecook@umn.edu, 612-624-9796)

**PLEASE NOTE**  Permission to download this data does not grant permission to use
the information contained in t he file for publication.  Pleas contact the owner
of the file or the appropriate faculty member before use of any such 
information in a publication.

SITES: Five monitoring stations were installed during June 2005 to monitor 
surface water and soil temperature at NASA-NACP Tier 3 and 4 study sites.

1) Forested wetland ('fwet')
   Tamarac and sphagnum wetland
   45.94321 -90.27021 (east of WLEF)
   471.367 m above MSL
   sensor @ ~47.1 cm below surface

2) Willow Springs ('gwet')
   Sedge wetland
   45.80881 -90.06656 (east of Willow Creek flux tower, close to Aspen met station)
   491.088 m above MSL
   sensor @ ~74.9 cm below surface

3) Lost Creek ('lc2')
   Sedge and Willow wetland 
   46.08274 -89.97869 (one of two sensors @ Lost Creek flux tower)
   480.887 m above MSL
   sensor @ ~54.1 cm below surface

4) South Fork ('sfork')
   Leatherleaf and spagnum bog
   45.92503 -90.13072 (Tier 3 site between WLEF and Willow Creek flux towers)
   469.851 m above MSL
   sensor @ ~54.1 cm below surface

5) Wilson Flowage ('wflow')
   Grass and sedge wetland
   45.81648 -9017127
   476.989 m above MSL
   sensor @ ~40.1 cm below surface

FILE STRUCTURE:    monthly data files named SITEYYYY (SITE=site, YYYY=year)
FILE COMPRESSION:  gzip (information/software available at http://ww.gzip.org
FILE FORMAT:       comma dilimited ASCII
BAD VALUES:        -999

SAMPLING FREQUENCIES/OUTPUT:  30 minutes

DATA ELEMENTS:
year              = 4-digit year
jday              = Julian calander date
hrmin             = HHMM (0 to 2330; signifies the start of the measurment interval)
H2O_fwet          = surface water height (cm above surface) at forested wetland.
H2O_gwet          = surface water height (cm above surface) at Willow Springs.
H2O_lc            = surface water height (cm above surface) at Lost Creek.
H2O_sfork         = surface water height (cm above surface) at South Fork.
H2O_wflow         = surface water height (cm above surface) at Wilson Flowage.
airT_fwet         = air temperature (deg C) at 100 cm above soil surface at forested wetland.
airT_gwet         = air temperature (deg C) at 100 cm above soil surface at Willow Springs.
airT_lc           = air temperature (deg C) at 100 cm above soil surface at Lost Creek.
airT_sfork        = air temperature (deg C) at 100 cm above soil surface at South Fork.
airT_wflow        = air temperature (deg C) at 100 cm above soil surface at Wilson Flowage.
soilT_10cm_fwet   = soil temperature (deg C) at 10 cm below the soil surface at forested wetland.
soilT_10cm_gwet   = soil temperature (deg C) at 10 cm below the soil surface at Willow Springs.
soilT_10cm_lc     = soil temperature (deg C) at 10 cm below the soil surface at Lost Creek.
soilT_10cm_sfork  = soil temperature (deg C) at 10 cm below the soil surface at South Fork.
soilT_10cm_wflow  = soil temperature (deg C) at 10 cm below the soil surface at Wilson Flowage.
soilT_20cm_fwet   = soil temperature (deg C) at 20 cm below the soil surface at forested wetland.
soilT_20cm_gwet   = soil temperature (deg C) at 20 cm below the soil surface at Willow Springs.
soilT_20cm_lc     = soil temperature (deg C) at 20 cm below the soil surface at Lost Creek.
soilT_20cm_sfork  = soil temperature (deg C) at 20 cm below the soil surface at South Fork.
soilT_20cm_wflow  = soil temperature (deg C) at 20 cm below the soil surface at Wilson Flowage.

EQUIPMENT AND SENSORS
Omega PX240 pressure transducers
Onset Hobo H8 4 Channel logger and temperature probes (+/- 5 deg @ 20 deg C)
12 Deep cycle battery and solar panel

HISTORY:
See .../cheas/micromet/wdepth/rawdata/wdepth_raw_readme.txt