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Trace Gas Manitoba Meteorological Station
Location: 49.64°N, 97.16°W; 235 m a.s.l.
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Last Updated: Fri. May 6, 2011

I. Description

	This readme.txt file is for supplemental information related to the annual data from 	the meteorological station located at the TGASMB site. The purpose of this file is 	to inform any users of that data of potential errors and missing data. There are 	various reasons for such occurrences, and through this file, the best attempt will 	be made to explain such data issues. 

II. File Location
	Archived data is available from the following location:
		http://umanitoba.ca/afs/ncle/TGASMANWeather.html#weather

III. Available Data 
	- 2005
	- 2006
	- 2007
	- 2008
	- 2009 (daily)
	- 2009 (30 min.)
	- 2010 (daily)
	- 2010 (30 min.)
	- 2011 (daily)
	- 2011 (30 min)

IV. Data Notes

	a) 2005
	- Site station installed on Aug.12, 2005. However, it was not fully operational 	until Nov.23, 2005.
	- Volumetric moisture content (VMC) was still not installed
	
	b) 2006
	- VMC probes installed Aug.13, 2006. However, both 10 cm and 30 cm VMC do not appear 	to be giving reliable data

	c) 2007
	- Precipitation gauge giving values out of range. Likely due to a grounding issue. 	Data removed from Jan. 1 to May 8, 2007.

	d) 2008
	- One bad data point that should have been removed in processing air temperature 	Sept. 3, 2008.
	- 2 cm temperature probe damaged and removed Aug. 9, 2008 onward
	- All soil temperature, and some additional instruments missing data from Sept. 1 to 	Sept. 10, due to rain damage.
	- 30 cm VMC damaged Dec. 7, 2008

	e) 2009
	- System shutdown from Mar. 26 to May 4, 2009 due to spring flood concerns
	- Datalogger grounding issue from Jun. 1 to Jun. 19, 2009
	- 2 cm soil temperature probe damaged and removed Aug. 9, 2008, replaced May 6, 2009
	- 100 cm soil temperature not working properly until Jun. 10, 2009
	- Solar Radiation and PAR instruments malfunctioning all year
	- Wind anemometer malfunctioning until May 21, 2009
	- Precipitation malfunctioning until May 21, 2009
	- Pressure malfunctioning until May 21, 2009
	- 30 cm VMC damaged Dec. 7, 2008, replaced Jun. 18, 2009

	f) 2010
	- System upgrade from Apr. 9 to Apr. 12, 2010. No data for this period
	- No solar radiation data from Apr. 6 to Apr. 18, 2010 due to damaged cables
	- No 30 cm VMC data from Mar. 22 to Apr. 18, 2010 due to damaged cables

	g) 2011
	- The PAR and solar sensors have some unusual patterns during the month of January. 	For example, on Jan 13, 14, and 16, the solar is smaller than it should be relative 	to the PAR, however, on Jan 15, solar is larger than it should be relative to PAR. 	There is no reason so suspect that the instrument is malfunctioning in anyway. The 	data anomalies are most likely due to snow cover on one or both of the sensors. 	Therefore, the solar and PAR data for the winter months is suspect and should be 	used cautiously.

V. Contact
	a) Primary Investigators
	Dr. Mario Tenuta (Soil Science), (204) 474-7827, mario_tenuta@ umanitoba.ca
	Dr. Brian Amiro (Soil Science), (204) 474-9155, brian_amiro@umanitoba.ca
	
	b) Technician
	Jenna Rapai (Soil Science), (204) 223-8341, rapai@cc.umanitoba.ca