Garwood Ice Cliff Meteorological Station Measurements, 2012-

GAFM Garwood Ice Cliff Meteorological Station Measurements, 2012- Joseph Levy jlevy@colgate.edu https://sites.google.com/colgate.edu/levy https://orcid.org/0000-0002-6222-139X McMurdo Dry Valleys LTER http://mcmlter.org/ 2014-01-01 English

As part of the Long Term Ecological Research in the McMurdo Dry Valleys of Antarctica, meteorological data was collected from various locations throughout Beacon, Taylor, Wright and Victoria Valleys. These files contain data for the Garwood Ice Cliff meteorology station. This station reported data for about a year, during 2011. On January 10, 2012 the station was being transferred to the custody of the MCM LTER program by Joe Levy (UT), completing of the handover on the Austral summer of 2014. The GAFM station was moved ~5 m from its original site in 2013 (out of the stream bed). The Garwood ice cliff met station ceased operations in 2013.

humidity meteorology radiation temperature wind Station Keywords Meteorological data is collected year-round at each of the stations in the McMurdo Dry Valleys of Antarctica. After retrieving this data (usually every January), the parameters that are recorded are processed from level 0 (raw) to level 1 (processed, provided on the web). The raw data file descriptions and task lists summarize what was done to get from level 0 to level 1 for all station found at the following address: http://mcmlter.org/meteorological-task-lists

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https://mcm.lternet.edu/content/garwood-ice-cliff-meteorological-station-measurements-2012 Garwood Ice Cliff Meteorological Station, it was temporarily located in the Miers Valley, 164.131500000000 164.131500000000 -78.025900000000 -78.025900000000 51 51 meter 2012-01-10 2014-12-31 On Season 2010/11, by Thomas Nylen 1. Converted station to LTER format 2. CR10X time was set to UTC, but changed to local daylight saving time. CR10X 55 secs behind. Changed at 12/23/2010 0930. Changed output results to local time (UTC + 13hrs) 3. Wind Pointing north, declination at site is 152 degrees 4. GPS location: 77.74738, 161.51634 5. Sensor Heights: Temp/RH = 2.5m, Wind = 3.6m and NetRad = 2.05m 6. Loaded new program Friis1011v1 on 12/23/2010 1007. 7. Processed data back to 2005. Duplicated line of data on 1/18/2008 10:55 (local time). Deleted second extra line. 8. Replaced HMP45C RH sensor on Dec 16, 2008 @ 1304 (local). Wind direction alignment checked and is pointing north. 9. Pressure added by Wisconsin AWS group on 02/04/2008 11:00 McMurdo Dry Valleys LTER http://mcmlter.org/ McMurdo Dry Valleys LTER http://mcmlter.org/ McMurdo Dry Valleys LTER

The Garwood Ice Cliff meteorological station was added to the McMurdo Dry Valley network in the 2012-13 field season. GAFM transfer process will be finished off this year The GAFM station was moved ~5 m from its original site in 2013 (out of the stream bed). At this time, the three 107 temperature probes were placed in a vertical profile (10, 5, and 0 cm), similar to the other AWS (recording in Celsius) Air temp and RH are at 3 m, along with wind direction and speed. Incoming and outgoing SW and LW are also at 3 m, but were oriented parallel to the ground surface (rather than normal) in order to capture radiative flux into/out of the ice cliff. In 2013-2014, these sensors were replaced with a single NR-LITE2 net rad sensor which is oriented in a typical, ground-normal orientation (the original sensors did not survive contact with a katabatic wind storm some time over the winter). The SR is also at 3m and points towards the ice cliff. This instrument died in 2013 and failed in 2013-2014. I've got a replacement we can install this field season, since it is a useful measurement. 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 approximately20 values being recorded for final storage in every output interval.

GAFM_AIRT GAFM Air temperature spreadsheet GAFM_AIRT.csv 1398354 27 1 \n column , " https://mcm.lternet.edu/sites/default/files/data/GAFM_AIRT.csv

The Garwood Ice Cliff meteorological station was added to the McMurdo Dry Valley network in the 2012-13 field season. GAFM transfer process will be finsihed off this year The GAFM station was moved ~5 m from its original site in 2013 (out of the stream bed). At this time, the three 107 temperature probes were placed in a vertical profile (10, 5, and 0 cm), similar to the other AWS (recording in Celsius) Air temp and RH are at 3 m, along with wind direction and speed. Incoming and outgoing SW and LW are also at 3 m, but were oriented parallel to the ground surface (rather than normal) in order to capture radiative flux into/out of the ice cliff. In 2013-2014, these sensors were replaced with a single NR-LITE2 net rad sensor which is oriented in a typical, ground-normal orientation (the original sensors did not survive contact with a katabatic wind storm some time over the winter). The SR is also at 3m and points towards the ice cliff. This instrument died in 2013 and failed in 2013-2014. I've got a replacement we can install this field season, since it is a useful measurement. 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 every output interval.

DATASET_CODE DATASET_CODE Code for given set of information for Lake Vida meteorology station string Code for given set of information for Lake Vida meteorology station METLOCID METLOCID Location code for Lake Vida meteorology station string Location code for Lake Vida meteorology station DATE_TIME DATE_TIME Date/time of sample (New Zealand DST, +13 UTC) date MM/DD/YYYY HH24:MI AIRT3M AIRT3M Average air temperature at 3 m above ground celsius 0.01 real Null None given AIRT_COMMENTS air temperature comments Noted comments by the investigator about the particular measure of air temperature string Noted comments by the investigator about the particular measure of air temperature GAFM_RADN Garwood Valley Solar Radiation Measurements and Units GAFM_RADN.csv 2989309 27 1 \n column , " https://mcm.lternet.edu/sites/default/files/GAFM_RADN.csv

See tasks list file at http://www.mcmlter.org/data/meteorology/tasks/task_lists.htm

DATASET_CODE DATASET_CODE Code for given set of information for Lake Vida meteorology station string Code for given set of information for Lake Vida meteorology station METLOCID METLOCID Location code for Lake Vida meteorology station string Location code for Lake Vida meteorology station DATE_TIME DATE_TIME Date/time of sample (New Zealand DST, +13 UTC) date MM/DD/YYYY HH24:MI SWRAD_SOUTH SWRAD_SOUTH south facing shortwave radiation/solar flux W/m2 0.1 real 0 900 Null None given SWRAD_NORTH SWRAD_NORTH north-facing shortwave radiation/solar flux W/m2 0.1 real 0 900 Null None given RADN_COMMENTS radiation comments Noted comments by the investigator about the particular measure of radiation string Noted comments by the investigator about the particular measure of radiation LWRAD_SOUTH LWRAD_SOUTH long wave south facing radiation W/m2 real LWRAD_NORTH LWRAD_NORTH north facing Long wave radiation W/m2 real GAFM_RH Garwood Valley Relative Humidity Measurement and Units GAFM_RH.csv 1324724 27 1 \n column , " https://mcm.lternet.edu/sites/default/files/GAFM_RH.csv

To view the data post-processing steps for each season please visit: http://www.mcmlter.org/data/meteorology/tasks/task_lists.htm

1995-1996 - 1999-2000: Campbell Scientific 207 temp/rh probe. 1999-2000 - present: Vaisala HMP45C RH probe 1995-1996 - 1999-2000: Campbell Scientific 207 temp/rh probe. DATASET_CODE DATASET_CODE Code for given set of information for Lake Vida meteorology station string Code for given set of information for Lake Vida meteorology station METLOCID METLOCID Location code for Lake Vida meteorology station string Location code for Lake Vida meteorology station DATE_TIME DATE_TIME Date/time of sample (New Zealand DST, +13 UTC) date MM/DD/YYYY HH24:MI RH RH Relative humidity at 3 meters percent 0.01 real Null None given RH_COMMENTS relative humidity comments Noted comments by the investigator about the particular measure of relative humidity string Noted comments by the investigator about the particular measure of relative humidity GAFM_WIND Garwood Valley Wind Measurement and Units GAFM_WIND.csv 2049842 27 1 \n column , " https://mcm.lternet.edu/sites/default/files/GAFM_WIND.csv

DATASET_CODE DATASET_CODE Code for given set of information for Lake Vida meteorology station string Code for given set of information for Lake Vida meteorology station METLOCID METLOCID Location code for Lake Vida meteorology station string Location code for Lake Vida meteorology station DATE_TIME DATE_TIME Date/time of sample (New Zealand DST, +13 UTC) date MM/DD/YYYY HH24:MI WDIR WDIR Average wind direction degreesfromnorth 0.1 real Null None given WDIRSTD WDIRSTD Standard deviation of wind direction degreesfromnorth 0.1 real Null None given WSPD WSPD Wind speed metersPerSecond 0.1 real Null None given WSPDMAX WSPDMAX Maximum wind speed metersPerSecond 0.1 real Null None given WSPDMIN WSPDMIN Minimum wind speed metersPerSecond 0.1 real Null None given WIND_COMMENTS WIND_COMMENTS Noted comments by the investigator about the particular measure of WIND string Noted comments by the investigator about the particular measure of WIND