Mesonet NOAA Great Lakes Environmental Research Laboratory (GLERL) Meteorological Network [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 5-minute resolution surface meteorological data from the Great Lakes Environmental Research Laboratory (GLERL) Meteorological Network. These GLERL stations are located along the shoreline of Lake Michigan. This data set covers the period from 15 May to 14 July 2003. The data are in comma-delimited ASCII format. 2.0 INSTRUMENT DESCRIPTION AND STATION LOCATIONS 2.1 Milwaukee, Wisconsin Station LATITUDE: 43-02-44 N LONGITUDE: 87-52-44 W Special thanks to the men and women of the USCG Group Milwaukee for their technical and financial support of this project. Location: On the Milwaukee navigation light located on the end of the north harbor inlet pier. Sensors are located approximately 30 feet above the water. Wind Sensor: R.M. Young model 5103 Wind monitor mounted on the structure railing. Temperature Sensor: CSI model 107 thermistor mounted in a naturally aspirated gill type radiation shield mounted on the structure railing. Processor: CSI model CR10X. This units samples the sensors every 5 seconds and is set to an averaging interval of 5 minutes. 2.2 Kenosha, Wisconsin Station LATITUDE: 42-35-20 N LONGITUDE: 87-48-31 W Special thanks to the men and women of the USCG Group Milwaukee and the USCG Aids to Navigation Team Kenosha for their technical and financial support of this project. Location: On the Kenosha light located on the end of the north harbor inlet pier. Sensors are located approximately 50 feet above the water. Wind Sensor: R.M. Young model 5103 Wind monitor mounted 14 feet above the light house catwalk. Temperature Sensor: CSI model 107 thermistor mounted in a naturally aspirated gill type radiation shield mounted about 3 fee above the light house catwalk. Processor: CSI model CR10X. This units samples the sensors every 5 seconds and is set to an averaging interval of 5 minutes. 2.3 Chicago, Illinois Station LOCATION: Approximately 3 miles offshore from the City of Chicago. LATITUDE: ~42-00 N LONGITUDE: ~87-30 W Site online 03 Aug 2000 The sensors are approximately 75 feet above the water. Wind Sensor: R.M. Young model 5103 Wind monitor Temperature Sensor: CSI model 107 thermistor mounted in a naturally aspirated gill type radiation shield. Processor: CSI model CR10X. This units samples the sensors every 5 seconds and is set to an averaging interval of 5 minutes. 2.4 Michigan City, Indiana Station LATITUDE: 41-43-45 N (Approximate) LONGITUDE: 86-55-41 W Special thanks to the men and women of the USCG Station Michigan City for their technical and financial support of this project. Location: On the Michigan City harbor entrance light house. Sensors are located about 60 feet above the water. Wind Sensor: R.M. Young model 5103 Wind monitor mounted on a 12 foot mast which is clamped to the light house deck railing. Height above water is approximately 60 feet. Temperature Sensor: CSI model 107 thermistor mounted in a naturally aspirated gill type radiation shield co-located on the Wind Monitor mast. Processor: CSI model CR510X. This unit samples the sensors every 5 seconds and is set to an averaging interval of 5 minutes. 2.5 Saugatuck, Michigan Station LATITUDE: 42-40-30 N (Approximate) LONGITUDE: 86-13-00 W Special thanks to the USCG Group Grand Haven for use of the navigation structure. Location: On the Saugatuck navigation light located on the end of the north harbor inlet pier. Sensors are located approximately 30 feet above the water. Wind Sensor: R.M. Young model 5103 Wind monitor mounted on the structure railing. Temperature Sensor: CSI model 107 thermistor mounted in a naturally aspirated gill type radiation shield mounted on the anemometer mast. Processor: CSI model CR10X. This units samples the sensors every 5 seconds and is set to an averaging interval of 5 minutes. 2.6 Muskegon, Michigan LMFS Station LATITUDE: 43-13-40 N LONGITUDE: 86-20-20 W LOCATION: Coast Guard communications tower, Muskegon, MI Lake level above sea level: 176.2m (578') Base of tower above lake level: 3.1m (10') Sensor Data: Anemometer: R. M. Young Wind Monitor model 5103. Location: At the top of the old Coast Guard communications tower at about 80'. Temperature and RH sensor: R.M. Young model 41372VC Location: This unit is installed in a R.M. Young model 41002P multiplate radiation shield and located at about the 20' level on the old Coast Guard communications tower. Barometric Pressure Sensor: R. M. Young model 61201 and an attached model 61002 remote barometric pressure port. Location: Co-located with the Temp/RH sensor above. PAR sensor: Biospherical Instruments model QSR-240. Located on the roof at the north end of the LMFS garage building. Processor: CSI model CR10. This units samples the sensors every 5 seconds and is set to an averaging interval of 5 minutes. 2.7 Alpena Michigan Station LATITUDE: 45-02-47 N LONGITUDE: 83-26-45 W LOCATION: On the grounds of the Alpena water inlet plant located adjacent to the Alpena Thunder Bay National Marine Sanctuary & Underwater Preserve. Sensors are located approximately 54 feet above the water. Site online 04 Oct 2001 Wind Sensor: R.M. Young model 5103 Wind Monitor mounted on a 30' flag pole on the east end of the grounds. Temperature Sensor: CSI model 107 thermistor mounted in a naturally aspirated Gill type radiation shield mounted about 3 feet below the Wind Monitor. Processor: CSI model CR10X. This units samples the sensors every 5 seconds and is set to an averaging interval of 5 minutes. 3.0 DATA COLLECTION AND PROCESSING Information on the collection and processing of these data can be found at the GLERL network page: http://www.glerl.noaa.gov/metdata/ 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. 4.1.1 Milwaukee, Wisconsin Station Station ID, Milwaukee=1 Year Julian Day Time, GMT Voltage measured at CR10X Voltage, PV panel. Panel (equipment compartment) Temperature, Deg C Average air temperature, Deg C Air temperature standard deviation, Deg C Wind Speed minimum, m/s Wind Speed maximum, m/s Wind Speed, standard deviation m/s Wind Speed, scalar average, m/s Wind Direction, unit vector average, degrees from (0=north, 90=east) Wind Direction, standard deviation, degrees. -999 = missing/bad data 4.1.2 Kenosha, Wisconsin Station Data Line: The data line is comma delimited and consists of the following in order from left to right. Station ID, Kenosha=2 Year Julian Day Time, GMT Voltage measured at CR10X Voltage, battery charger Panel (equipment compartment) Temperature, Deg C Average air temperature, Deg C Air temperature standard deviation, Deg C Wind Speed minimum, m/s Wind Speed maximum, m/s Wind Speed, standard deviation m/s Wind Speed, scalar average, m/s Wind Direction, unit vector average, degrees from (0=north, 90=east) Wind Direction, standard deviation, degrees. 4.1.3 Chicago, Illinois Station Data Line: The data line is comma delimited and consists of the following in order from left to right. Station ID, Chicago=4 Year Julian Day Time, GMT Battery Voltage Panel (equipment compartment) Temperature, Deg C AC power 128=off, 0=on Average air temperature, Deg C Air temperature standard deviation, Deg C Wind Speed minimum, m/s Wind Speed maximum, m/s Wind Speed, standard deviation m/s Wind Speed, scalar average, m/s Wind Direction, unit vector average, degrees from (0=north, 90=east) Wind Direction, standard deviation, degrees. 4.1.4 Michigan City, Indiana Station Data Line: The data line is comma delimited and consists of the following in order from left to right. Station ID, Michigan City = 7 Year Julian Day Time, UTC Voltage measured at CR10X Voltage, PV panel. A dummy parameter used to maintain the order of data for this station. Panel (equipment compartment) Temperature, Deg C Average air temperature, Deg C Air temperature standard deviation, Deg C Wind Speed minimum, m/s Wind Speed maximum, m/s Wind Speed, standard deviation m/s Wind Speed, scalar average, m/s Wind Direction, unit vector average, degrees from (0=north, 90=east) Wind Direction, standard deviation, degrees. 4.1.5 Saugatuck, Michigan Station Data Line: The data line is comma delimited and consists of the following in order from left to right. Station ID, Saugatuck=3 Year Julian Day Time, GMT Voltage measured at CR10X Voltage, PV panel. (Not Operational) Panel (equipment compartment) Temperature, Deg C Average air temperature, Deg C Air temperature standard deviation, Deg C Wind Speed minimum, m/s Wind Speed maximum, m/s Wind Speed, standard deviation m/s Wind Speed, scalar average, m/s Wind Direction, unit vector average, degrees from (0=north, 90=east) Wind Direction, standard deviation, degrees. 4.1.6 Muskegon, Michigan Station Data Line: The data line is comma delimited and consists of the following in order from left to right. Station ID, Muskegon=5 Year Julian Day Time, GMT System Voltage Panel (equipment compartment) Temperature, Deg C Average air temperature, Deg C Average relative humidity, % Average station pressure, millibars Average PAR, (Photosynthetically active radiation) quantum/cm^2/sec X E15, mantissa only. Minimum wind speed, m/s Maximum wind speed, m/s Standard deviation wind speed, m/s Scaler average wind speed, m/s Unit vector average wind direction, degrees from (0=north, 90=east) Standard deviation wind direction, degrees 4.1.7 Alpena, Michigan Station Data Line: The data line is comma delimited and consists of the following in order from left to right. Station ID, Alpena=6 Year Julian Day Time, GMT Voltage measured at CR10X Voltage, battery charger (a dummy parameter set to zero for data formatting in this case) Panel (equipment compartment) Temperature, Deg C Average air temperature, Deg C Air temperature standard deviation, Deg C Wind Speed minimum, m/s Wind Speed maximum, m/s Wind Speed, standard deviation m/s Wind Speed, scalar average, m/s Wind Direction, unit vector average, degrees from (0=north, 90=east) Wind Direction, standard deviation, degrees. 4.2 File Naming conventions 20030709.02t where: 2003 is the year 07 is the month 09 is the day 02t is the station identifier where 01t = Milwaukee, Wisconsin 02t = Kenosha, Wisconsin 03t = Saugatuck, Michigan 04t = Chicago, Illinois 05t = Muskegon, Michigan 06t = Alpena, Michigan 07t = Michigan City, Indiana 5.0 DATA REMARKS None. 6.0 REFERENCES None.