NOAA / GLERL / Real-Time Meteorological Observation Network

Metadata for NOAA/GLERL Muskegon, MI Met Station

Return to Muskegon Met Data page
Muskegon LMFS Met station information sheet:

LATITUDE:  43-13-40 N
LONGITUDE: 86-20-20 W
Site online: 14 Oct 1998

LOCATION:  Coast Guard communications tower, Muskegon, MI
Site Elevation: 179.1 m above mean sea level
Lake level above sea level: 179.0 m
Base of tower above lake level: 3.1 m
Anemometer Height: 24.4 m above site elevation
Air Temp Height: 6.1 m above site elevation
Barometer Height: 183.5 m above mean sea level

NOTE:  The LMFS data processing and format was modified on Feb 06, 2001. The new format
applies to LMFS files with a file extension ".05t".  The old format and processing
information is at: The old format
applies to LMFS files with a file extension ".ftp"

Sensor Data:

Anemometer:  R. M. Young Wind Monitor model 5103.
Location:  At the top of the old Coast Guard communications tower at about 80'.  This unit is checked and
refurbished approximately every two years.  Current unit has been in service since 7/2010

Temperature and RH sensor:  Vaisala HMP155 A
Location:  This unit is installed in a R.M. Young model 41002P multiplate radiation shield
and located at about the 10' level on the old Coast Guard communications tower.
Newly installed 9/2011

Barometric Pressure Sensor:  Vaisala PTB110
Location:  Co-located with the CR10X datalogger in the LMFS boat storage building.
Newly installed 9/2011

PAR sensor:  Biospherical Instruments model QSR-240.  Located on the roof of the LMFS boat storage building.
Calibrated 2/2011.  Spherical sensor.  
Prior to 2005, the units were E15 quanta/cm2/s.  2005-present, units are uE/m2/s.  To convert E15 quanta/cm2/s
to uE/m2/s, multiply by E15*100*100 and divide by 6.02E17 (=16.61).  Max value about 3200 uE/m2/s. 

Processor:  CSI model CR10X.  This units samples the sensors every 5 seconds and is set to an
averaging interval of 5 minutes.  For each 5-minute interval, a mean and max (gust) wind speed
are reported.  The peak wind is the max of all of the gusts during the interval.

Power:  The system is run from a commercial AC power supply which is backed up by a 1KVA UPS.

WebCam Image: See WebCam Details.

Scheme:  The CR10X is connected (through an SC-32A serial adapter) to a Lantronix UDS-10
serial port server. The system is connected to an ethernet LAN at LMFS and is interrogated by
a PC from Ann Arbor running the CSI Loggernet 4.1 software very 15 minutes.  The data set consists
of three 5 minute data ensembles.  Averaging, interrogation intervals and the system program
are adjustable remotely.  The system data rate is set to 9600 baud.  As of this writing the
LMFS system has been integrated into a regional real time meteorological network.

Data Line for file yyyymmdd.05t.txt: The data line is space delimited and consists of the following
columns in order from left to right.

1:Station ID, Muskegon=5
3:Day of Year
4:Time, UTC
5:Average air temperature, Deg C
6:Scaler average wind speed, m/s
7:Wind Speed maximum, m/s
8:Unit vector average wind direction, degrees from (0=north, 90=east)
9:Average relative humidity, %
10:Average station pressure, millibars
11:Average PAR, (Photosynthetically active radiation), E15 quanta/cm2/s prior to 2005, uE/m2/s 2005-present

Ron Muzzi
Marine Instrumentation Laboratory