TITLE: Mesonet Michigan LTER Kellogg Biological Station Meteorological
        Data [JOSS]
     

CONTACTS:

Steve Williams
P.O. Box 3000
Boulder CO 80307-3000
Email sfw@ucar.edu

303-497-8164 (voice)
970-491-8293 (fax)


1.0  DATA SET OVERVIEW
     

This data set contains hourly resolution surface meteorological data 
from the Long Term Ecological Research (LTER) Network site at the 
Kellogg Biological Station (KBS) in southwestern Michigan.  This data 
set covers the period from 20 May to 7 July 2003. The data are in 
comma delimited ASCII format.


2.0  INSTRUMENT DESCRIPTION


2.1  Instrumentation

Campbell Scientifc sensors are connected to a CR10x datalogger, which 
takes readings every 10 seconds and stores hourly integrated values. 
Temperature is measured by a Campbell Scientific model 107 temperature
probe, housed in a vented shield. Wind speed is measured by a Met One
model 014A, wind direction by Met One model 024A. The RH is measured 
with a Vaisala HMP45C. The quantum sensor is Campbell Scientific model 
LI190S. The pyranometer is Campbell Scientific LI200S.  The pressure
is measured with a Vaisala PTB101B barometer.

Instruments to measure wind speed and direction are mounted on a tower 
at 10 m. Light sensors (net solar radiation and photosynthetically 
active radiation) a thermometer, and an RH probe (with a built-in 
thermometer) are mounted at about 3 m. Soil moisture and temperature is
being monitored on a trial basis near the base of the tower.  
Precipitation is measured with a Belfort model 5-780 weighing bucket 
rain gauge.

2.2  Station Location
 
Latitude: 42 24' 33" N
Longitude: 85 22' 18" W
Elevation 940 ft above sea level


3.0  DATA COLLECTION AND PROCESSING


UCAR/JOSS conducted no processing or quality control on these data.


4.0  DATA FORMAT AND FILE NAMING


4.1  Data Format
 
These data are in comma-delimited ASCII format. 


1. Date (m/dd/yyyy 0:00:00)
2. Hour (Eastern Standard Time)
3. Solar Radiation (W/m2)
4. Wind Speed (m/s)
5. Wind direction (degrees)
6. Relative Humidity (%)
7. Absolute Humidity partial pressure (kPa)
8. Air Temperature (degrees Celsius)
9. Barometric Pressure (mb) 

4.2  File Naming conventions

kbs_met.txt

where:
        kbs is the station
        met is the data type


5.0  DATA REMARKS


None.


6.0  REFERNCES



KBS LTER Program Web Site: http://lter.kbs.msu.edu/