Details and Metadata

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Methods

The methods followed in the creation of the dataset, including description of field, laboratory and processing steps, and quality control procedures

Current Methods

  • Data from Mount Mansfield station
    Started: 1997-01-01

    This Mount Mansfield station provides basic meteorological variables including wind speed and direction, air temperature, relative humidity, total solar irradiance, photosynthetically active radiation (PAR), and precipitation during non-freezing months. The station is located within a mixed aspen-birch spruce-fir forest, and represents mid-elevation forest meteorology.


  • Started: 1997-01-01

    Data are automatically downloaded via radio frequency (RF) modem on a daily basis, with 15 minute average records collected and stored during each downloading cycle. Hourly and daily data formats are made available.

Dataset Fields

Detailed documentation of the fields comprising the dataset, including the type of measurement, units where applicable, and any controlled vocabularies or code lists present in the data


Field Name Caption Description Additional Information
RECORDTIMERecord timestamp

Time and date of measurement

Measurement type: DateTime
Date/Time Format: YYYY-MM-DD hh:mm:ss
SAMPLEYEARSample Year

Year when sample was collected

Measurement type: DateTime
Date/Time Format: other
SAMPLEMONTHSample Month

Sample month of data collection

Measurement type: DateTime
Date/Time Format: other
SAMPLEDOYSample Day of Year

Day of year when collected

Measurement type: DateTime
Date/Time Format: other
SAMPLETIMESample Time

Time of sample collection

Measurement type: DateTime
Date/Time Format: other
AIRTEMPAir Temperature

Measured air temperature

Measurement type: Interval
Unit: unavailable
Precision: 0.01
RELHUMIDRelative Humidity

Relative humidity

Measurement type: Ratio
Units: dimensionless
Precision: 0.01
QUANTUMPhotosynthetically active radiation

Photosynthetically active radiation (400nm to 700nm)

Measurement type: Ratio
Unit: unavailable
Precision: 1
PYRANOMSolar radiation

Solar radiation flux

Measurement type: Ratio
Unit: unavailable
Precision: 1
PRECIPTotal Precipitation

Total precipitation

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
MAX_WINDSPEEDMaximum Wind Speed

Maximum measured wind speed

Measurement type: Ratio
Units: meters per second
Precision: 0.001
TIME_MAX_WINDSPEEDTime of Maximum Windspeed

Time during the measurement interval of maximum measured wind speed

Measurement type: DateTime
Date/Time Format: other
MEAN_HORIZONTAL_WINDSPEEDMean Horizontal Windspeed

Mean horizontal windspeed during the measurement interval

Measurement type: Ratio
Units: meters per second
Precision: 0.001
MEAN_RESULTANT_WINDSPEEDMean Resultant Windspeed

Mean resultant windspeed over the measurement interval

Measurement type: Ratio
Units: meters per second
Precision: 0.001
MEAN_WIND_DIRECTIONMean Wind Direction

Mean wind direction during the interval

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
STDDEV_WIND_DIRECTIONStandard Deviation of Wind Direction

Standard deviation of wind direction over the measurement interval

Measurement type: Ratio
Unit: unavailable
Precision: 0.01

Sampling Equipment

Equipment and software used to collect data, including how that equipment was used.

Current Equipment

  • Data logger, weather sensors, rain gauge
    Started: 1997-01-01

    Campbell CR 10X datalogger with automated weather station sensors on a 3 meter tower. Tipping bucket rain gage (unheated).

Site Characteristics

The spatial extent of the dataset site coverage, and descriptions of the spatial extent and context for the data collection

  • Site Description

    West slope of Mount Mansfield, in the Browns River watershed, off the CCC road within paper birch, spruce and fir forest. Approximate coordinates: 44.5244 N, 72.8267 W. Approximate elevation: 2678 feet

Dataset Notes

Notes describing any special conditions or considerations for understanding the quality and consistency of the data


Start Date End Date Note Date Entered
2016-07-19 13:30:002016-07-19 15:00:00Replaced MMW quantum, pyranometer and battery; checked wind anemometer and precipitation gauge. Precipitation gauge was clogged with plant debris, cleaned it out. Have not nullified data yet.2016-07-20 00:00:00
2016-02-17 23:30:002016-04-21 11:15:00At MMW some critter bit through the cable that connects the air temperature and relative humidity sensor to the data logger. The sensor and cable were replaced and are functional now.2016-05-31 14:40:00
2014-02-26 22:45:002014-05-15 09:45:00Battery charge dropped too low, station shut down until spring visit in May. No data collected.2015-09-28 00:00:00
2013-05-06 10:00:002013-05-06 10:15:00Rain gauge opened for the season. Precipitation nullification ended2013-05-06 15:15:00
2012-11-12 11:00:002012-11-12 11:15:00Rain gauge at the site was closed for the season. Subsequent precipitation records nullified until gauge reopened2013-05-06 15:15:00
2012-09-09 18:00:002012-09-09 18:15:00Cleared out rain gauge2012-09-10 00:00:00
2012-08-27 11:30:002012-08-27 12:00:00site cleaered with loppers and handsaw. Tower wires restrung. raingauge cleaned. desi packs changed.Replaced temperature/humidity probe and pyranometer and quantum for calibration purposes.2012-08-28 00:00:00
2012-07-06 10:00:002012-07-06 10:30:00Rain Gauge cleaned. nullified precip data for 10:002012-07-06 01:00:00
2012-06-19 10:30:002012-06-19 10:30:00Rain Gauge cleaned and branches trimmed back from anemometer. nullified precip data for 10:302012-06-20 15:30:00
2011-06-06 00:30:002011-06-06 13:00:00Rain Guage opened for the season. Other instruments not touched, however jostling of the tower may have occured. 2011-06-06 15:44:00
2010-11-12 08:45:000000-00-00 00:00:00Rain Gauge closed for the season2010-11-18 00:00:00
2009-11-10 10:15:000000-00-00 00:00:00Pending. rain gauge closed for the season at 10:15 am EST, changed desiccant,change RM Young anemometer nose cone assembly all instruments visually inspected and instantaneous data values checked2010-05-13 11:19:00
2009-08-14 11:00:000000-00-00 00:00:00Unclogged rain gauge at 11:00 am, air temperature/relative humidity probe changed for calibration purposes pyranometer changed for calibration purposes quantum sensor changed for calibration purposes all instruments visually inspected and instantaneous data values checked changed desiccant2010-05-13 11:40:00
2009-07-03 05:00:002009-07-13 11:00:00Rain Gauge was clogged - JG2009-08-03 16:33:00
2008-12-03 00:00:002009-05-13 10:50:00Rain gauge closed for the season2010-05-13 11:25:00
2007-11-14 11:45:002008-06-09 10:00:00Rain gauge closed for the winter2008-01-17 16:29:00
2007-06-22 01:30:002007-09-25 09:30:00Tipping bucket (rain gage funnel) blocked. Nullified from June 22, 2007 at 1:30 EST to July 25, 2007 at 9:30 EST.2008-02-12 19:28:00
2006-11-29 09:45:002007-05-14 12:00:00Tipping bucket covered Nov 29 2006; at approximately 09:45 AM.2007-02-16 16:24:00
2006-09-28 09:30:002006-09-28 09:45:00***Added battery voltage variable***2007-02-16 16:24:00
2006-09-28 09:30:002006-09-28 09:45:00Changed anemometer nosecone assembly, upgraded air temperature/relative humidity sensor from HMP35C to HMP45C.2008-02-12 19:13:00
2006-09-28 00:00:002006-09-28 23:45:00Tipping bucket (rain gage) found clogged2008-02-12 19:18:00
2006-09-23 10:30:002006-09-28 09:45:00Tipping bucket (rain gage) found clogged2008-02-12 20:09:00
2006-09-06 02:45:002006-09-28 09:30:00Tipping bucket (rain gage) found clogged2008-02-12 20:06:00
2006-07-05 07:30:002006-07-31 09:45:00Nullified precipitation data from 7/5/06 at 7.30 to 7/31/06 at 9.45 inclusive due to a clogged rain gage2007-02-16 16:24:00
2005-11-21 11:00:002006-05-31 10:30:00Tipping bucket covered Nov 21 2005 approx 11.00 AM EST. Tipping bucket opened May 31 2006 approx 10.30 AM EST'2007-02-16 16:24:00
2005-10-05 00:00:002005-10-05 00:00:00Replaced temperature/humidity probe and pyranometer and quantum for calibration purposes.2008-02-12 19:02:00
2005-09-01 15:00:002005-10-05 23:45:00Tipping bucket found completely clogged and full of water; began ~15:00 EST on 9/1/05.2008-02-12 19:07:00
2004-11-11 10:15:002004-11-11 10:45:00Temp/rel humd probe changed for calibration; off-line from approx.10.15 - 10.45 am EST.2007-02-16 16:24:00
2004-10-26 10:30:002005-05-05 00:00:00Tipping bucket (rain gage) covered on Oct 26 2004 at ~10.30 am DST.2007-02-16 16:24:00
2004-06-09 11:45:002004-07-15 14:30:00Tipping bucket blocked; set records to null from June 9 11.45 PM - July 16 14.30 DST/15.30 EST 20042007-02-16 16:24:00
2003-11-12 09:30:002004-05-13 00:00:00Tipping bucket (rain gage) covered on 12 Nov 2003 approx. 10.30 A.M.2007-02-16 16:24:00
2003-10-28 00:00:002003-10-28 23:45:00Changed pyranometer and quantum for calibration purposes.2008-02-12 15:47:00
2003-10-27 13:45:002003-10-28 14:45:00Rain gage found blocked by leaves. Set to null precipitation records from 10/27 1.45 am to 10/28 14.45 EST2007-02-16 16:24:00
2003-09-11 00:00:002003-09-11 23:45:00Changed anemometer nosecone assembly.2008-02-12 15:45:00
2003-09-09 00:00:002003-09-09 23:45:00Temperature/relative humidity probe replaced for calibration purposes.2008-02-12 15:44:00
2003-07-09 00:00:002003-07-09 00:00:00Tipping bucket funnel found on ground and restored to original position.2007-02-16 16:24:00
2002-10-17 10:15:002003-05-20 00:00:00Tipping bucket (rain gage) covered.2007-02-16 16:24:00
2002-10-17 00:00:002002-10-17 00:00:00Temperature/relative humidity probe replaced for calibration purposes.2008-02-12 15:32:00
2001-11-19 00:00:002002-05-08 00:00:00Tipping bucket (rain gage) covered. Deleted records to October 16 2001.'2007-02-16 16:24:00
2001-09-06 00:00:002001-09-06 23:45:00Temperature/relative humidity probe replaced for calibration purposes.2008-02-12 15:21:00
2001-06-01 00:00:002001-06-01 00:00:00Changed pyranometer and quantum for calibration purposes.2008-02-12 15:18:00
2001-05-29 00:00:002001-05-31 09:00:00Due to low battery voltage some data not collected between 5/29/01 and 9 am EST 5/31/012007-02-16 16:24:00
2001-05-17 01:00:002001-05-17 12:45:00Met station battery replaced; station somewhat operational.2001-05-23 00:00:00
2001-04-24 09:00:002001-05-18 08:00:00Met station fell down. Wind data ends at 0845. After 0915 no more of any data. Reset date/time stamp.2001-05-23 00:00:00
2001-04-24 08:45:002001-05-18 09:00:00Deleted 4/24/01 0845-0915. No further records entered until 5/18/01 0900 (due to time stamp change to 2000).2007-02-16 16:24:00
2000-12-04 00:00:002001-05-18 00:00:00Tipping bucket closed. Had been frozen for a while. Deleted records from Oct 28th on.2001-02-22 00:00:00
1999-12-09 00:00:002000-06-01 11:00:00Tipping bucket closed for season2000-10-31 00:00:00
1998-10-21 08:45:001999-05-03 11:30:00Tipping bucket closed for winter. It was plugged with leaves and overflowing. Check data and correct.2000-10-13 00:00:00
1998-09-07 00:00:001998-10-21 13:00:00rain gage clogger and overflowing2008-02-12 19:39:00
1997-11-07 00:00:001998-05-29 12:00:00Noon; Tipping bucket closed for winter.2000-10-13 00:00:00
0000-00-00 00:00:002000-06-06 00:00:00Funnel had blown off rain gage; was replaced.2008-02-12 14:50:00
0000-00-00 00:00:002000-04-12 00:00:00Anemometer found encrusted with snow; prop could not turn.2008-02-12 14:43:00
0000-00-00 00:00:000000-00-00 00:00:00Rain Gauge opened for the season.2012-05-02 10:30:00
0000-00-00 00:00:000000-00-00 00:00:00Sensors are *not* heated during the winter.2008-01-09 14:37:00