Peter T. DoranAndrew G. Fountain 2015-11-23 Daily measurement summaries from Commonwealth Glacier Meteorological Station (COHM), McMurdo Dry Valleys, Antarctica (1993-2022, ongoing) tabular digitial data McMurdo Dry Valleys LTER 10.6073/pasta/a5e6164abb618444c0c2248b3d588f77 https://mcm.lternet.edu/content/daily-measurement-summaries-commonwealth-glacier-meteorological-station-cohm-mcmurdo-dry As part of the McMurdo Dry Valleys Long Term Ecological Research program, meteorological data are collected from various locations throughout the McMurdo Dry Valleys of Antarctica. This package contains daily measurement summaries derived from 15-minute data generated by the Commonwealth Glacier Meteorological Station (COHM), located in Taylor Valley (Latitude: -77.5646, Longitude: 163.2823, Elevation: 290 meters above sea level). COHM was established in 1993, during the 93/94 field season. Meteorological data are collected year-round at each of MCM LTER stations. Data are manually downloaded from the meteorological stations during the austral summer. Raw 15 minute data (Level 0) is processed and provided as Level 1 data on the MCM LTER website. Field notes, sensor information, processing procedures, QA/QC, and metadata is provided in the Meteorological Post Processing Documentation and Task Lists for each field season at the following address: https://mcm.lternet.edu/meteorological-task-lists 1993-11-22 2022-12-10 ground condition As needed Meteorology station located at same coordinates as stake 11 on the Commonwealth Glacier mass balance gridID: COHM 163.282300000000 163.282300000000 -77.564600000000 -77.564600000000 282m 282m meter LTER Core Areas disturbance None <cntperp> <cntper>McMurdo Dry Valleys LTER Information Manager</cntper> </cntperp> <cntemail>im@mcmlter.org</cntemail> Name: Krista F. Myers Role: field technician Name: RenĂ©e F. Brown Role: data manager Name: Maciej K. Obryk Role: former field crew Name: Hassan Basagic Role: former field crew Name: Thomas Nylen Role: former field crew Name: Inigo San Gil Role: former data manager Not Applicable Not Applicable Field and/or Lab Methods At the start of the 1993-1994 field season, the Commonwealth Glacier meteorological station was constructed at the same coordinates as stake 11 on the glacier's mass balance grid. The station was set up to sample sensors every 30 seconds and send summary statistics (for example, averages and maximums) to solid-state storage modules every:        3 hours between November 22 and December 3, 1993,    30 minutes between December 3 and December 24, 1993,    30 minutes for the main array andamp; every 24 hours for the max/min thermal infrared between December 24, 1993 and; January 12, 1994,    6 hours for the main array andamp; every 24 hours for the max/min thermal infrared between January 12, 1994 and; January 18, 1994,    20 minutes between January 18, 1994 and November 27, 1995,    15 minutes thereafter.        This has resulted in approximately 20 values being recorded for final storage in every output interval.    Sampling and Averaging Intervals         For Sampling frequency and Data Logger output and averaging intervals please visit          http://mcmlter.lternet.edu/data/meteorology/methods/Interval_Dates.pdf   At the start of the 1993-1994 field season, the Commonwealth Glacier meteorological station was constructed at the same coordinates as stake 11 on the glacier's mass balance grid. The station was set up to sample sensors every 30 seconds and send summary statistics (for example, averages and maximums) to solid-state storage modules every:     3 hours between November 22 and December 3, 1993,   30 minutes between December 3 and December 24, 1993,   30 minutes for the main array andamp; every 24 hours for the max/min thermal infrared between December 24, 1993 and; January 12, 1994,   6 hours for the main array andamp; every 24 hours for the max/min thermal infrared between January 12, 1994 and; January 18, 1994,   20 minutes between January 18, 1994 and November 27, 1995,   15 minutes thereafter.     This has resulted in approximately 20 values being recorded for final storage in every output interval.  Sampling and Averaging Intervals       For Sampling frequency and Data Logger output and averaging intervals please visit        http://mcmlter.lternet.edu/data/meteorology/methods/Interval_Dates.pdf  unknown COHM_AIRT_DAILY COHM - Air Temperature (Daily) METLOCID Location code for Commonwealth meteorology station - COHM The data provider Location code for Commonwealth meteorology station - COHM Date_time Date sample was collected The data provider calendar date/time mm/dd/yyyy gregorian calendar AVG_AIRT3M Daily average air temperature at 3 m above ground The data provider celsius 0.01 STD_AIRT3M Standard deviation for the daily air temperature at 3 m above ground The data provider celsius 0.01 MIN_AIRT3M Minimum daily value of the air temperature at 3 m above ground The data provider celsius 0.01 MAX_AIRT3M Maximum daily value for the air temperature at 3 m above ground The data provider celsius 0.01 N_AIRT3M Number of observations for this average The data provider dimensionless AVG_AIRT1M Average air temperature at 1 m above ground The data provider celsius STD_AIRT1M Standard deviation for the air temperature at 1m above ground The data provider celsius MIN_AIRT1M Minimum value of the air temperature at 1 m The data provider celsius 0.01 MAX_AIRT1M Maximum value for the air temperature at 1m above ground The data provider celsius N_AIRT1M Number of observations for this average The data provider dimensionless N_COMMENTS Number of comments about the measurement in this period The data provider dimensionless McMurdo Dry Valleys LTER The data distributor shall not be liable for innacuracies in the content http 1 0 \n 1 column , https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-cohm_airt-daily-20230705.csv None COHM_ICESURFCHANGE_DAILY COHM - Ice Surface Change (Daily) METLOCID Location code for Commonwealth glacier meteorology station - COHM The data provider Location code for Commonwealth glacier meteorology station - COHM Date_time Date sample was collected The data provider calendar date/time mm/dd/yyyy gregorian calendar AVG_ICESURFCHANGE_CM Average Ice surface change The data provider centimeter 0.01 STD_ICESURFCHANGE_CM Standard deviation for the Ice surface change The data provider centimeter 0.01 MIN_ICESURFCHANGE_CM Minimum value of the Ice surface change The data provider centimeter 0.01 MAX_ICESURFCHANGE_CM Maximum daily value for the Ice surface temperature thermal infrared The data provider centimeter 0.01 N_ICESURFCHANGE_CM Number of observations for this average The data provider dimensionless N_COMMENTS Number of comments about the measurement in this period The data provider dimensionless McMurdo Dry Valleys LTER The data distributor shall not be liable for innacuracies in the content http 1 0 \n 1 column , https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-cohm_icesurfchange-daily-20230705.csv None COHM_RADN_DAILY COHM - Solar Radiation (Daily) METLOCID Location code for this met station The data provider Location code for this met station Date_time Date sample was collected The data provider calendar date/time mm/dd/yyyy gregorian calendar AVG_LWRADIN Daily avgerage of the Incoming longwave radiation based on applying instrument-specific multiplier The data provider -5 400 W/m2 0.1 STD_LWRADIN Standard deviation of the daily Incoming longwave radiation distribution based on applying instrument-specific multiplier The data provider -5 400 W/m2 0.1 MIN_LWRADIN Daily minimum for the incoming longwave radiation based on applying instrument-specific multiplier The data provider -5 400 W/m2 0.1 MAX_LWRADIN Maximum daily incoming longwave radiation based on applying instrument-specific multiplier The data provider -5 400 W/m2 0.1 N_LWRADIN Number of data records included for the statistics The data provider dimensionless AVG_LWRADIN2 Daily average of the Incoming longwave radiation based on applying instrument-specific multiplier, a replicate. The data provider -5 400 W/m2 0.1 STD_LWRADIN2 Standard deviation of the daily Incoming longwave radiation distribution based on applying instrument-specific multiplier. A replicate The data provider -5 400 W/m2 0.1 MIN_LWRADIN2 Daily minimum for the incoming longwave radiation based on applying instrument-specific multiplier - a replicate The data provider -5 400 W/m2 0.1 MAX_LWRADIN2 Maximum daily incoming longwave radiation based on applying instrument-specific multiplier - a replicate The data provider -5 400 W/m2 0.1 N_LWRADIN2 Number of data records used to compute the statistics The data provider dimensionless AVG_LWRADOUT Daily average of the outbound (reflected) longwave radiation based on applying instrument-specific multiplier The data provider -5 400 W/m2 0.1 STD_LWRADOUT Standard deviation of the daily outgoing longwave radiation distribution based on applying instrument-specific multiplier The data provider -5 400 W/m2 0.1 MIN_LWRADOUT Daily minimum for the outgoing longwave radiation based on applying instrument-specific multiplier The data provider -5 400 W/m2 0.1 MAX_LWRADOUT Maximum daily outgoing longwave radiation based on applying instrument-specific multiplier The data provider -5 400 W/m2 0.1 N_LWRADOUT Number of data records included for the statistics The data provider dimensionless AVG_LWRADOUT2 Daily average of the outgoing longwave radiation based on applying instrument-specific multiplier The data provider -5 400 W/m2 0.1 STD_LWRADOUT2 Standard deviation of the daily outgoing longwave radiation distribution based on applying instrument-specific multiplier The data provider -5 400 W/m2 0.1 MAX_LWRADOUT2 Maximum of the daily outgoing longwave radiation distribution based on applying instrument-specific multiplier The data provider W/m^2 Number of Observations Number of observations for the daily stats. The data provider dimensionless AVG_SWRADIN Daily avgerage of the Incoming shortwave radiation based on applying instrument-specific multiplier The data provider -5 400 W/m2 0.1 MIN_LWRADOUT2 Minimum of the daily outgoing longwave radiation distribution based on applying instrument-specific multiplier The data provider W/m^2 STD_SWRADIN Standard deviation of the daily Incoming shortwave radiation distribution based on applying instrument-specific multiplier The data provider -5 400 W/m2 0.1 MIN_SWRADIN Minimum of the daily Incoming shortwave radiation distribution based on applying instrument-specific multiplier The data provider W/m^2 MAX_SWRADIN Maximum incoming shortwave radiation/solar flux The data provider W/m2 0.1 Number of Observations Number of observations for the derived data statistics. The data provider dimensionless AVG_SWRADOUT Average of the outgoing shortwave radiation/solar flux The data provider W/m2 0.1 STD_SWRADOUT Standard deviation for the outgoing shortwave radiation/solar flux The data provider W/m2 0.1 MIN_SWRADOUT Minimum outgoing shortwave radiation/solar flux The data provider W/m2 0.1 MAX_SWRADOUT Maximum outgoing shortwave radiation/solar flux The data provider W/m2 0.1 Number of Observations Number of observations for the stats. The data provider dimensionless AVG_THMIR Average of the thermal infrared surface temperature The data provider celsius 0.01 STD_THMIR Standard deviation for the thermal infrared surface temperature distribution The data provider celsius 0.01 MIN_THMIR Minimum of the thermal infrared surface temperature The data provider celsius 0.01 MAX_THMIR Maximum of the thermal infrared surface temperature The data provider celsius 0.01 Number of Observations Number of observations for the daily stats. The data provider dimensionless N_COMMENTS Number of comments about the measurement in this period The data provider dimensionless McMurdo Dry Valleys LTER The data distributor shall not be liable for innacuracies in the content http 1 0 \n 1 column , https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-cohm_radn-daily-20230705.csv None COHM_RH_DAILY COHM - Relative Humidity (Daily) METLOCID Location code for Commonwealth glacier meteorology station - COHM The data provider Location code for Commonwealth glacier meteorology station - COHM Date_time Date sample was collected The data provider calendar date/time mm/dd/yyyy gregorian calendar Daily mean RH Daily average of the relative humidity values The data provider dimensionless Standard Dev. of daily RH The standard deviation for the distribution of daily rel. humidity values The data provider dimensionless Minimum RH The daily minimum of the relative humidity The data provider dimensionless Maximum RH The daily maximum of the relative humidity The data provider dimensionless Number of Observations Number of observations for the daily stats. The data provider dimensionless N_COMMENTS Number of comments about the measurement in this period The data provider dimensionless McMurdo Dry Valleys LTER The data distributor shall not be liable for innacuracies in the content http 1 0 \n 1 column , https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-cohm_rh-daily-20230705.csv None COHM_SURFTEMP_DAILY COHM - Ice Surface Temperature (Daily) METLOCID Location code for Commonwealth glacier meteorology station - COHM The data provider Location code for Commonwealth glacier meteorology station - COHM Date_time Date sample was collected The data provider calendar date/time mm/dd/yyyy gregorian calendar AVG_SURFTEMP Daily average Ice surface temperature thermal infrared The data provider celsius 0.01 STD_SURFTEMP Standard deviation for the daily Ice surface temperature thermal infrared The data provider celsius 0.01 MIN_SURFTEMP Minimum daily value of the Ice surface temperature thermal infrared The data provider celsius 0.01 MAX_SURFTEMP Maximum daily value for the Ice surface temperature thermal infrared The data provider celsius 0.01 N_SURFTEMP Number of observations for this average The data provider dimensionless N_COMMENTS Number of comments about the measurement in this period The data provider dimensionless McMurdo Dry Valleys LTER The data distributor shall not be liable for innacuracies in the content http 1 0 \n 1 column , https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-cohm_surftemp-daily-20230705.csv None COHM_WSPD_DAILY COHM - Wind Speed (Daily) METLOCID METLOCID identification code for the meteorological station The data provider METLOCID identification code for the meteorological station DATE_TIME Date when measurement was taken The data provider calendar date/time DD/MM/YYYY gregorian calendar AVG_WSPD Average of the daily values of the wind speed The data provider metersPerSecond STDDEV_WSPD Standard deviation of the daily distribution of the wind speed The data provider metersPerSecond MIN_WSPD Minimum value of the wind speed for the period of one day The data provider metersPerSecond MAX_WSPD Maximum value of the wind speed for the period of one day The data provider metersPerSecond N_WSPD Number of data points used to calculate these statistics. The data provider dimensionless N_COMMENTS N_COMMENTS The data provider N_COMMENTS McMurdo Dry Valleys LTER The data distributor shall not be liable for innacuracies in the content http 1 0 \n 1 column , https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-cohm_wspd-daily-20230705.csv None COHM_ICET_DAILY COHM - Ice Temperature (Daily) METLOCID Location code for Comonwealth Glacier meteorology station The data provider Location code for Comonwealth Glacier meteorology station DATE_TIME Date/time of sample (New Zealand DST, +13 UTC) The data provider calendar date/time DD/MM/YYYY gregorian calendar AVG_ICET50CM Ice temperature daily average at 50 cm depth The data provider celsius STD_ICET50CM Ice temperature standard deviation of daily distribution at 50 cm depth The data provider celsius 0.01 MIN_ICET50CM Daily minimum of Ice temperature at 50 centimeters depth The data provider celsius 0.01 MAX_ICET50CM Daily maximum of Ice temperature at 50 centimeters depth The data provider celsius 0.01 N_ICET50CM Ice temperature at 50 cm depth The data provider dimensionless 0.01 AVG_ICET1M daily average for the Ice temperature at 1 meter depth The data provider celsius 0.01 STD_ICET1M standard deviation of distribution of the Ice temperature at 1 meter depth The data provider celsius MIN_ICET1M Daily minimum of the Ice temperature at 1 meter depth The data provider celsius 0.01 MAX_ICET1M Daily maximum of the ice temperature at 1 meter depth The data provider celsius 0.01 Number of Observations Number of observations for the daily stats. The data provider dimensionless AVG_ICET20CM Ice temperature daily average at 20cm The data provider celsius 0.01 STD_ICET20CM Standard deviation of the Ice temperature distribution at 20 cm depth The data provider celsius 0.01 MIN_ICET20CM Minimum daily of the ice temperature at 20 cm depth The data provider celsius 0.01 MAX_ICET20CM Maximum ice temperature at 20cm The data provider celsius 0.01 N_ICET20CM number of data points used in the stats. for ce temperature at 20cm The data provider dimensionless 0.01 AVG_ICEELEVATION Average elevation of ice surface measured from fixed datum (based on original height of sonic) The data provider centimeter 0.01 STD_ICEELEVATION standard deviation of the ice elevation The data provider centimeter ICET_COMMENTS Noted comments by the investigator about the particular measure of ICET_ The data provider Noted comments by the investigator about the particular measure of ICET_ MIN_ICEELEVATION Minimum elevation of ice surface measured from fixed datum (based on original height of sonic) The data provider centimeter 0.01 MAX_ICEELEVATION Maximum elevation of ice surface measured from fixed datum (based on original height of sonic) The data provider centimeter 0.01 Number of Observations Number of observations for the daily stats. The data provider dimensionless McMurdo Dry Valleys LTER The data distributor shall not be liable for innacuracies in the content http 1 0 \n 44 column , https://mcm.lternet.edu/sites/default/files/data/COHM_ICET_DAILY.csv None 2015-11-23 2015-11-23 McMurdo Dry Valleys LTER http://mcmlter.org/ Biological Data Profile of the Content Standards for Digital Geospatial Metadata devised by the Federal Geographic Data Committee. Drupal Ecological information Management Systems, version D7, Biological Data Profile module