uid=MCM,o=EDI,dc=edirepository,dc=org all public read bonney_snowfence Peter Doran pdoran@lsu.edu https://www.lsu.edu/science/geology/people/faculty/doran.php https://orcid.org/0000-0002-3774-2847 Andrew Fountain

P.O. Box 751 Portland OR 97207 US

(503) 725-3386 andrew@pdx.edu http://glaciers.pdx.edu/fountain/ https://orcid.org/0000-0001-5299-2273 McMurdo Dry Valleys LTER http://mcmlter.org/ Hassan Basagic basagic@gmail.com field crew Thomas Nylen thomasnylen@gmail.com https://orcid.org/0000-0001-9579-8702 field crew Inigo San Gil

Department of Biology, MSC03 2020 University of New Mexico Albuquerque NM 87131 US

(505) 277-2625 (505) 277-2541 isangil@lternet.edu data manager 2014-11-06 English

As part of the Long Term Ecological Research in the McMurdo Dry Valleys of Antarctica, meteorological data was collected from various locations throughout Taylor, Wright and Victoria Valleys. These files contain data for the Lake Bonney Snowfence station (in Taylor Valley). Measurements at this temporary met station ceased on April 2006.

air temperature meteorology solar radiation LTER Controlled Vocabulary  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://www.mcmlter.org/data/meteorology/tasks/task_lists.htm   The last usable data was recorded on January 4, 2006 @ 14:00. There was some intermittent data recorded during the 2006-2007 season, but not much. The station was modified in late January 2007 to support another experiment  

This data package is released under the Creative Commons Attribution 4.0 International License (CC BY 4.0; http://creativecommons.org/licenses/by/4.0/), which allows consumers (hereinafter referred to as “Data Users”) to freely reuse, redistribute, transform, or build on this work (even commercially) so long as appropriate credit is provided. Accordingly, Data Users are required to properly cite this data package in any publications or in the metadata of any derived products that result from its use (in whole or in part). A recommended citation is provided on the summary metadata page associated with this data package in the McMurdo Dry Valleys LTER Data Catalog (https://mcmlter.org/data), and a generic citation may be found on the summary metadata page in the repository where this data package was obtained. When these data contribute significantly to the contents of a publication, Data Users must also acknowledge that data were provided by the NSF-supported McMurdo Dry Valleys Long Term Ecological Research program (OPP-2224760). This data package has been released in the spirit of open scientific collaboration. Hence, Data Users are strongly encouraged to consider consultation, collaboration, and/or co-authorship (as appropriate) with the data package creator(s). Data Users should be aware these data may be actively used by others for ongoing research; thus, coordination may be necessary to prevent duplicate publication. Data Users should also recognize that misinterpretation of data may occur if they are used outside the context of the original study. Hence, Data Users are urged to contact the data package creator(s) if they have any questions regarding methodology or results. While substantial efforts are made to ensure the accuracy of this data package (with all its components), complete accuracy cannot be guaranteed. Periodic updates to this data package may occur, and it is the responsibility of Data Users to check for new versions. This data package is made available “as is” and comes with no warranty of accuracy or fitness for use. The creator(s) of this data package and the repository where these data were obtained shall not be liable for any damages resulting from misinterpretation, use, or misuse of these data. Finally, as a professional courtesy, we kindly request Data Users notify the primary contact referenced in the metadata when these data are used in the production of any derivative work or publication. Notification should include an explanation of how the data were used, along with a digital copy of the derived product(s). Thank you.

https://mcm.lternet.edu/content/lake-bonney-snowfence-meteorological-station-measurements ID: BOYS 162.313200000000 162.313200000000 -77.724500000000 -77.724500000000 108 108 meter 2001-01-01 2006-12-31 McMurdo Dry Valleys LTER http://mcmlter.org/ McMurdo Dry Valleys LTER http://mcmlter.org/ McMurdo Dry Valleys LTER

 During the 2000-2001 field season, the McMurdo LTER established a snowfence above (south) of the west lobe of Lake Bonney in western Taylor Valley. The station was set up to sample sensors every 30 seconds, except the sonic range which samples every 15 minutes, 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. Task List notes 2002-2003 Season Author of this report: Thomas Nylen Sampling Frequency: sonic every 60 minutes, every 30 sec for all the others Averaging and Output Interval: every 15 min Program Name: bsn001v1.dld Filename bsn02031.datFile Period: January 24, 2002 (24) @ 1500 to Nov 7, 2002 (311) @ 0430  Filename bsn02032.datFile Period: Nov 7, 2002 (311) @ 0445 to Nov 16, 2002 (320) @ 1445  Filename bsn02033.datFile Period: Nov 16, 2002 (320) @ 1445 to Dec 17, 2002 (351) @ 1830  Filename bsn02034.datFile Period: Dec 17, 2002 (351) @ 1845 Filename bsn02035.datFile Period: Dec 17, 2002 (351) @ 1845 to January 24, 2003 (24) @ 1400 1. array I.D. o1 2. day ok 3. time ok 4. mean soil P.A.R. +3.6 m (east) from snow fence (micromols/s/m2) – Q30801 divide by 200, multiply by 301.57 5. mean soil P.A.R. +1.8 m (east) from snow fence (micromols/s/m2) – Q30802 divide by 200, multiply by 319.62 6. mean Air P.A.R. @ 1.6 m (micromols/s/m2) – Q20266 divide by 200, multiply by 228.057. mean air temp. @ 1.5 m (C) rclow 8. mean soil temperature @ 0 cm in soil -1.9 m (west) of snow fence (C) rclow 9. mean soil temperature @ 0 cm in soil +0.9 m (east) of snow fence (C) rclow 10. mean soil temperature @ 0 cm in soil +1.8 m (east) of snow fence (C) rclow 11. mean soil temperature @ 0 cm in soil +3.6 m (east) of snow fence (C) rclow 12. sample depth from sensor to surface (cm) Measured depth (1.097) + Value) * 100 13. sample of battery voltage For FILENAMES  bsn0234 and bsn02035 the PAR multipliers differ: 4. mean soil P.A.R. +3.6 m (east) from snow fence (micromols/s/m2) divide by 200, multiply by 217.27 5. mean soil P.A.R. +1.8 m (east) from snow fence (micromols/s/m2) divide by 200, multiply by 222.23 6. mean Air P.A.R. @ 1.6 m (micromols/s/m2) divide by 200, multiply by 275.02  2003-2004 Season Author of this report: Thomas Nylen Sampling Frequency: sonic every 60 minutes, every 30 sec for all the others Averaging and Output Interval: every 15 min Program Name: bsn023v1v1.dld (Program Signature: 63043) Filename bsn03041.datFile Period: January 24, 2003 (24) @ 1415 to November 7, 2003 (311) @ 0345  Filename bsn03042.datFile Period: November 7, 2003 (311) @ 0400 to November 19, 2003 (323) @ 1115 Filename bsn03043.datFile Period: November 19, 2003 (323) @ 1130 to January 5, 2004 (5) @ 1700 Filename bsn03044.datFile Period: January 5, 2004 (5) @ 1715 to January 24, 2004 (24) @ 1130 Filename bsn03045.datFile Period: January 24, 2004 (24) @ 1200 1. array I.D. o1 2. day ok 3. time ok 4. mean soil P.A.R. +3.6 m (east) from snow fence (micromols/s/m2) divide by 200, multiply by 217.27 5. mean soil P.A.R. +1.8 m (east) from snow fence (micromols/s/m2) divide by 200, multiply by 222.23 6. mean Air P.A.R. @ 1.6 m (micromols/s/m2) divide by 200, multiply by 275.027. mean air temp. @ 1.5 m (C) rclow 8. mean soil temperature @ 0 cm in soil -1.9 m (west) of snow fence (C) rclow 9. mean soil temperature @ 0 cm in soil +0.9 m (east) of snow fence (C) rclow 10. mean soil temperature @ 0 cm in soil +1.8 m (east) of snow fence (C) rclow 11. mean soil temperature @ 0 cm in soil +3.6 m (east) of snow fence (C) rclow 12. sample depth from sensor to surface (cm) Measured depth (1.097) + Value) * 100 13. sample of battery voltage 2004-2005 Season Author of this report: Thomas Nylen Sampling Frequency: sonic every 60 minutes, every 30 sec for all the others Averaging and Output Interval: every 15 min Program Name: bsn023v1v1.dld (Program Signature: 63043) Filename: bsn04051.dat File Period: January 24, 2004 (24) @ 1200 to November 15, 2004 (320) @ 1430  Filename: bsn04052.datFile Period: November 15, 2004 (320) @ 1445  Filename: bsn04053.datFile Period: November 15, 2004 (320) @ 1445 to January 24, 2005 (24) @ 1515 1. array I.D. o1 2. day ok 3. time ok 4. mean soil P.A.R. +3.6 m (east) from snow fence (micromols/s/m2) – Q30801 divide by 200, multiply by 217.27 5. mean soil P.A.R. +1.8 m (east) from snow fence (micromols/s/m2) – Q30802 divide by 200, multiply by 222.23 6. mean Air P.A.R. @ 1.6 m (micromols/s/m2) – Q20266 divide by 200, multiply by 275.02 7. mean air temp. @ 1.5 m (C) rclow 8. mean soil temperature @ 0 cm in soil -1.9 m (west) of snow fence (C) rclow 9. mean soil temperature @ 0 cm in soil +0.9 m (east) of snow fence (C) rclow 10. mean soil temperature @ 0 cm in soil +1.8 m (east) of snow fence (C) rclow 11. mean soil temperature @ 0 cm in soil +3.6 m (east) of snow fence (C) rclow 12. sample depth from sensor to surface (cm) Measured depth (1.097) + Value) * 100 13. sample of battery voltage 2005-2006 Season Date of Establishment: January 2001 by Thomas Nylen Author of this report: Thomas Nylen Sampling Frequency: sonic every 60 minutes, every 30 sec for all the others Averaging and Output Interval: every 15 min Program Name: bsn045v1.dld (Program Signature: 1133) Filename bsn04051 (Note filename does not follow convention)File Period: January 24, 2005 (24) @ 1515 to November 14, 2005 @ 1615 Filename bsn04052 (Filename does not follow convention)File Period: November 14, 2005 (24) @ 1630 to January 4, 2006 @ 1400    

BOYS_AIRPAR Bonney Snowfence station Air PAR Units BOYS_AIRPAR.csv 8233473 27 1 \n column , " https://mcm.lternet.edu/sites/default/files/BOYS_AIRPAR.csv

see task list and instrumentation

2000-2001 - present: LI-COR model 190SB quantum sensor DATASET_CODE DATASET_CODE Code for given set of information for Bonney Snowfence meteorology station string Code for given set of information for Bonney Snowfence meteorology station METLOCID METLOCID Location code for Bonney Snowfence meteorology station string Location code for Bonney Snowfence meteorology station DATE_TIME DATE_TIME Date/time of sample (New Zealand DST, +13 UTC) date MM/DD/YYYY HH24:MI PAR_AIR_PLUS1_5M PAR_AIR_PLUS1_5M Photosynthetically active radiation micromols/second/meter2 0.1 real Null None given AIRPAR_COMMENTS AIRPAR_COMMENTS Noted comments by the investigator about the particular measure of AIR_PAR_ string Noted comments by the investigator about the particular measure of AIR_PAR_ BOYS_AIRT Bonney Snowfence Station BOYS_AIRT BOYS_AIRT.csv 7156642 27 1 \n column , " https://mcm.lternet.edu/sites/default/files/BOYS_AIRT.csv

The station was set up to sample the air sensor every 30 seconds.

2000-2001 - present: Campbell Scientific 107 temperature probe DATASET_CODE DATASET_CODE Code for given set of information for Bonney Snowfence meteorology station string Code for given set of information for Bonney Snowfence meteorology station METLOCID METLOCID Location code for Bonney Snowfence meteorology station string Location code for Bonney Snowfence meteorology station DATE_TIME DATE_TIME Date/time of sample (New Zealand DST, +13 UTC) date MM/DD/YYYY HH24:MI AIRT1_3M AIRT1_3M Average air temperature at 1.3 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 BOYS_SOILPAR Bonney Snowfence Station Soil PAR Units BOYS_SOILPAR.csv 10922822 27 1 \n column , " https://mcm.lternet.edu/sites/default/files/BOYS_SOILPAR.csv

see task list and instrumentation

2000-2001 - present: LI-COR model 190SB quantum sensor DATASET_CODE DATASET_CODE Code for given set of information for Bonney Snowfence meteorology station string Code for given set of information for Bonney Snowfence meteorology station METLOCID METLOCID Location code for Bonney Snowfence meteorology station string Location code for Bonney Snowfence meteorology station DATE_TIME DATE_TIME Date/time of sample (New Zealand DST, +13 UTC) date MM/DD/YYYY HH24:MI PAR_SOIL_PLUS3_6M PAR_SOIL_PLUS3_6M Photosynthetically active radiation 3.6 m east of snowfence micromols/second/meter2 0.1 real Null None given PAR_SOIL_PLUS1_8M PAR_SOIL_PLUS1_8M Photosynthetically active radiation 1.8 m east of snowfence micromols/second/meter2 0.1 real Null None given SOILPAR_COMMENTS SOILPAR_COMMENTS Noted comments by the investigator about the particular measure of SOIL_PAR_ string Noted comments by the investigator about the particular measure of SOIL_PAR_ BOYS_SURFCHANGE Bonney Snowfence Station Snow Height Surface Change spreadsheet description and units used BOYS_SURFCHANGE.csv 14403189 27 1 \n column , " https://mcm.lternet.edu/sites/default/files/data/BOYS_SURFCHANGE.csv

see task list and instrumentation

2000-2001 - present: Campbell Scientific SR50 Sonic Ranging Sensor DATASET_CODE DATASET_CODE Code for given set of information for Bonney Snowfence meteorology station string Code for given set of information for Bonney Snowfence meteorology station METLOCID METLOCID Location code for Bonney Snowfence meteorology station string Location code for Bonney Snowfence meteorology station DATE_TIME DATE_TIME Date/time of sample (New Zealand DST, +13 UTC) date MM/DD/YYYY HH24:MI SURFCHANGE_CM SURFCHANGE_CM Surface Height Change -snow height / sediment accumulation or loss centimeter 0.4 real Null None given SURFCHANGE_COMMENTS surface change comments Noted comments by the investigator about the particular measure of surface change string Noted comments by the investigator about the particular measure of surface change BOYS_SOILT Bonney Snowfence Station Soil Temperature Units BOYS_SOILT.csv 10566604 27 1 \n column , " https://mcm.lternet.edu/sites/default/files/BOYS_SOILT.csv

see task list and instrumentation

2000-2001 - present: Campbell Scientific 107 temperature probe DATASET_CODE DATASET_CODE Code for given set of information for Bonney Snowfence meteorology station string Code for given set of information for Bonney Snowfence meteorology station METLOCID METLOCID Location code for Bonney Snowfence meteorology station- BOYS string Location code for Bonney Snowfence meteorology station- BOYS DATE_TIME DATE_TIME Date/time of sample (New Zealand DST, +13 UTC) date MM/DD/YYYY HH24:MI SOILT_4_5M SOILT_4_5M Surface soil temperature at 4.5 m west of snowfence celsius 0.01 real Null None given SOILT+1M SOILT+1M Surface soil temperature at 1 m east of snowfence celsius 0.01 real Null None given SOILT+1_9M SOILT+1_9M Surface soil temperature at 1.9 m east of snowfence celsius 0.01 real Null None given SOILT+3_8M SOILT+3_8M Surface soil temperature at 3.8 m east of snowfence celsius 0.01 real Null None given SOILT_COMMENTS SOILT_COMMENTS Noted comments by the investigator about the particular measure of SOILT string Noted comments by the investigator about the particular measure of SOILT