EXEM_DAILY English utf8 dataset McMurdo Dry Valleys LTER Information Manager im@mcmlter.org pointOfContact 2019-06-26 ISO 19115-2 Geographic Information - North American Profile Metadata - Data with Biological Extensions ISO 19115-2:2009(E) Daily measurement summaries from Explorers Cove Meteorological Station (EXEM), McMurdo Dry Valleys, Antarctica (1995-2022, ongoing) 2019-06-26 publication Peter Doran Louisiana State University http://lsu.edu pdoran@lsu.edu https://www.lsu.edu/science/geology/people/faculty/doran.php pointOfContact Andrew Fountain Portland State University http://www.pdx.edu (503) 725-3386 P.O. Box 751 Portland OR 97207 US andrew@pdx.edu http://glaciers.pdx.edu/fountain/ pointOfContact documentDigital 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 Explorer's Cove Meterological Station (EXEM), located in Taylor Valley (Latitude: -77.5887, Longitude: 163.4175, Elevation: 25 meters above sea level). EXEM was acquired from USGS in 1997, during the 97/98 field season. Name: Krista F. Myers Role: field technician Name: Renée F. Brown Role: data manager Name: Maciej K. Obryk Role: former field crew Name: Hassan Basagic Role: former field crew Name: Inigo San Gil Role: former data manager completed McMurdo Dry Valleys LTER Information Manager im@mcmlter.org pointOfContact unknown A Decagon soil moisture and temperature sensor was installed at this station from December 2018 to December 2021, with data spanning 12/20/2018 to 12/23/2021. The sensor was damaged during routine maintenance on 12/23/2021, after which the station temporarily stopped recording data. Consequently, there is a gap in the data from 12/23/2021 10:00 to 12/28/2021 10:45. The sensor was later removed during the 2022-2023 field season. disturbance theme LTER Core Areas English ID: EXEM 163.417500000000 163.417500000000 -77.588700000000 -77.588700000000 ground condition 1995-11-24 2022-12-09 Meteorological data is collected year-round at each of MCM LTER stations. Data is 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 https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-exem_airt-daily-20230630.csv EXEM_AIRT_DAILY eng; US McMurdo Dry Valleys LTER EXEM_AIRT_DAILY Data Source Definition : EXEM - Air Temperature (Daily) Record Delimiter : \n Number of Header Lines : 1 Number of Footer Lines : 1 Orientation : Column Field Delimiter : , false METLOCID Location code for Explorer's Cove meteorology station - EXEM DATE_TIME Date sample was collected Date Time Format: mm/dd/yyyy AVG_AIRT3M Average air temperature at 3 m above ground STD_AIRT3M Standard deviation for the air temperature at 3 m above ground MIN_AIRT3M Minimum value of the air temperature at 3 m above ground MAX_AIRT3M Maximum value for the air temperature at 1.3 m above ground N_AIRT3M Number of observations for this average AVG_AIRTDEL3M1 Average of air temperature at 3 m minus air temperature at 1 m STD_AIRTDEL3M1 Standard deviation of the air temperature distribution at 3 m minus air temperature at 1 m MIN_AIRTDEL3M1 Minimum value of the air temperature at 3 m minus air temperature at 1 m MAX_AIRTDEL3M1 Maximum of the air temperature at 3 m minus air temperature at 1 m N_AIRTDEL3M1 Number of observations of the air temperature at 3 m minus air temperature at 1 meter above ground used for these statistics N_COMMENTS Number of comments about the measurement in this period DBF https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-exem_airt-daily-20230630.csv https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-exem_ppt-daily-20230630.csv EXEM_PPT_DAILY eng; US McMurdo Dry Valleys LTER EXEM_PPT_DAILY Data Source Definition : EXEM - Precipitation (Daily) Record Delimiter : \n Number of Header Lines : 1 Number of Footer Lines : 1 Orientation : Column Quote Character : "Field Delimiter : , false METLOCID Location code for Explorer's Cove meteorology station, in this case, EXEM. DATE_TIME Date/time of sample (New Zealand DST, +13 UTC) Date Time Format: MM/DD/YYYY AVG_PPT Average of the unevaporated precipitation STD_PPT standard deviation of the distribution of unevaporated precipitation records MIN_PPT Minimum of the distribution of unevaporated precipitation MAX_PPT Maximum value of the distribution of unevaporated precipitation data records N_PPT Number of data records used to compute this statistic N_COMMENTS Number of noted comments by the investigator about the particular measure of precipitation DBF https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-exem_ppt-daily-20230630.csv https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-exem_radn-daily-20230630.csv EXEM_RADN_DAILY eng; US McMurdo Dry Valleys LTER EXEM_RADN_DAILY Data Source Definition : EXEM - Solar Radiation (Daily) Record Delimiter : \n Number of Header Lines : 1 Number of Footer Lines : 1 Orientation : Column Field Delimiter : , false METLOCID Location code for meteorology station DATE_TIME Date sample was collected Date Time Format: mm/dd/yyyy AVG_PAR Average photosynthetically active radiation (PAR). STD_PAR Standard deviation for the photosynthetically active radiation (PAR). MIN_PAR Minimum value of the photosynthetically active radiation (PAR). MAX_PAR Maximum value for the photosynthetically active radiation (PAR). N_PAR Number of observations for the photosynthetically active radiation (PAR) statistics AVG_SWRADIN Average for the short wave incoming radiation STD_SWRADIN Standard deviation for the short wave incoming radiation MIN_SWRADIN Minimum value of the short wave incoming radiation MAX_SWRADIN Maximum incoming shortwave radiation/solar flux N_SWRADIN Number of observations for the derived data statistics. AVG_SWRADOUT Average for the short wave outbound radiation STD_SWRADOUT standard devation of the the short wave outbound radiation MIN_SWRADOUT Minimum the short wave outbound radiation MAX_SWRADOUT Maximum soil temperature at 10 cm depth N_SWRADOUT Number of observations the short wave outbound radiation N_COMMENTS Number of comments about the measurement in this period DBF https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-exem_radn-daily-20230630.csv https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-exem_rh-daily-20230630.csv EXEM_RH_DAILY eng; US McMurdo Dry Valleys LTER EXEM_RH_DAILY Data Source Definition : EXEM - Relative Humidity (Daily) Record Delimiter : \n Number of Header Lines : 1 Number of Footer Lines : 1 Orientation : Column Field Delimiter : , false METLOCID Location code for meteorology station DATE_TIME Date sample was collected Date Time Format: mm/dd/yyyy AVG_RH Average of the relative humidity values STD_RH The standard deviation for the distribution of daily rel. humidity values MIN_RH The minimum of the relative humidity MAX_RH The maximum of the relative humidity N_RH Number of observations for the daily stats. N_COMMENTS Number of comments about the measurement in this period DBF https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-exem_rh-daily-20230630.csv https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-exem_soilm-daily-20220512.csv EXEM_SOILM_DAILY eng; US McMurdo Dry Valleys LTER EXEM_SOILM_DAILY Data Source Definition : EXEM - Soil Moisture (Daily) Record Delimiter : \n Number of Header Lines : 1 Number of Footer Lines : 1 Orientation : Column Field Delimiter : , false METLOCID Location code for Explorer's Cove meteorology station - EXEM DATE_TIME Date sample was collected Date Time Format: mm/dd/yyyy AVG_SOILM Average soil moisture by day STDDEV_SOILM Standard deviation for soil moisture by day MIN_SOILM Minimum daily soil moisture MAX_SOILM Maximum daily soil moisture N_SOILM Number of soil moisture measurements per day N_SOILM_FLAG Number of flagged soil moisture measurements per day AVG_SOILT Average daily soil temperature STDDEV_SOILT Standard deviation for soil temperature by day MIN_SOILT Minimum daily soil temperature MAX_SOILT Maximum daily soil temperature N_SOILT Number of soil temperature measurements per day N_SOILT_FLAG Number of flagged soil temperature measurements per day DBF https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-exem_soilm-daily-20220512.csv https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-exem_soilt-daily-20230630.csv EXEM_SOILT_DAILY eng; US McMurdo Dry Valleys LTER EXEM_SOILT_DAILY Data Source Definition : EXEM - Soil Temperature (Daily) Record Delimiter : \n Number of Header Lines : 1 Number of Footer Lines : 1 Orientation : Column Field Delimiter : , false METLOCID Location code for the station DATE_TIME Date sample was collected Date Time Format: mm/dd/yyyy AVG_SOILT0CM Average soil temperature at ground STD_SOILT0CM Standard deviation for the soil temperature at suface ground MIN_SOILT0CM Minimum value of the soil temperature at surface ground MAX_SOILT0CM Maximum value for the air temperature at 3 m above ground N_SOILT0CM Number of observations for this average AVG_SOILT5CM Average soil temperature at 5cm below ground STD_SOILT5CM Standard deviation for the soil temperature at 5cm below ground MIN_SOILT5CM Minimum value of the soil temperature at 5cm below ground MAX_SOILT5CM Maximum soil temperature at 5 cm depth N_SOILT5CM Number of observations for this average AVG_SOILT10CM Average soil temperature at 10 cm depth STD_SOILT10CM standard devation of the soil temperature at 10 cm depth MIN_SOILT10CM Minimum soil temperature at 10 cm depth MAX_SOILT10CM Maximum soil temperature at 10 cm depth N_SOILT10CM Number of observations used to compute these statistics N_COMMENTS Number of comments about the measurement in this period DBF https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-exem_soilt-daily-20230630.csv https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-exem_wspd-daily-20230630.csv EXEM_WSPD_DAILY eng; US McMurdo Dry Valleys LTER EXEM_WSPD_DAILY Data Source Definition : EXEM - Wind Speed (Daily) Record Delimiter : \n Number of Header Lines : 1 Number of Footer Lines : 1 Orientation : Column Field Delimiter : , false METLOCID METLOCID identification code for the meteorological station DATE_TIME Date when measurement was taken Date Time Format: DD/MM/YYYY AVG_WSPD Average of the values of the wind speed STD_WSPD Standard deviation of the distribution of the wind speed MIN_WSPD Minimum value of the wind speed for the period. MAX_WSPD Maximum value of the wind speed for the period N_WSPD Number of data points used to calculate these statistics. N_COMMENTS N_COMMENTS DBF https://mcm.lternet.edu/sites/default/files/data/mcmlter-clim-exem_wspd-daily-20230630.csv dataset At the start of the first McMurdo LTER field season (1993-1994), Explorers Cove station was one of only two meteorological stations operating on the floor of the McMurdo Dry Valleys. The U.S. Geological Survey continued to manage the station. From November 24, 1995 to February 26, 1996, precipitation levels were sampled every hour for the long-term ecological research program.On February 26, 1996, the signal from the precipitation gage went dead and remained so until new equipment was installed in November, 1997. As a result there is a gap in the data collected at Explorers Cove meteorological station.In November, 1997, a new station with all new sensors mounted on Clow's old tripod was set up. At that time, 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 15 minutes. This has resulted in approximately 20 values being recorded for final storage in the more recent output intervals.In 2014, the data loggers lost most of the season data, and the streamed record is spotty. Sampling and Averaging Intervals For Sampling frequency and Data Logger output and averaging intervals please visit: http://www.mcmlter.org/data/meteorology/methods/Interval_Dates.pdf Metadata Access Constraints: none Metadata Use Constraints: none annually McMurdo Dry Valleys LTER http://mcmlter.org/ pointOfContact