uid=BNZ,o=EDI,dc=edirepository,dc=org all public read knb-lter-bnz.155.24 Keith Van Cleve Principal Investigator (retired)

Forest Soils Laboratory University of Alaska Fairbanks O'Neill Bldg Fairbanks AK 99775-7200 United States

kvancl@rockisland.com F Stuart Chapin Principal Investigator (retired)

Institute of Arctic Biology: University of Alaska Fairbanks Fairbanks AK 99775 United States

(907) 455-6408 (907) 474-6967 terry.chapin@alaska.edu https://sites.google.com/alaska.edu/f-stuart-chapin-iii-terry/ Roger Ruess Principal Investigator (retired)

Institute of Arctic Biology University of Alaska Fairbanks P.O. Box 757000 Fairbanks AK 99775-0180 United States

(907) 474-7153 (907) 474-6967 rwruess@alaska.edu http://people.iab.uaf.edu/roger_ruess Michelle Cailin Mack Principal Investigator

Northern Arizona University: Ecosystem Science and Society Center (ECOSS) PO Box 5620 Flagstaff AZ 86011 United States

(928) 523-9415 Michelle.Mack@nau.edu https://macklab.nau.edu/ Bonanza Creek LTER

Boreal Ecology Cooperative Research Unit University of Alaska Fairbanks P.O. Box 756780 Fairbanks AK 99775 USA

907-474-6364 907-474-6251 uaf-bnz-im-team@alaska.edu http://www.lter.uaf.edu Bonanza Creek LTER Data Manager

Boreal Ecology Cooperative Research Unit University of Alaska Fairbanks P.O. Box 756780 Fairbanks AK 99775 USA

907-474-6364 907-474-6251 uaf-bnz-im-team@alaska.edu http://www.lter.uaf.edu Jamie Hollingsworth Bonanza Creek LTER Site Manager

Boreal Ecology Cooperative Research Unit University of Alaska Fairbanks School of Agriculture and Land Resources Management P.O. Box 756780 Fairbanks AK 99775 United States

(907) 474-7470 (907) 474-6251 Associated party Jeremy Boyd Jones Assistant Professor of Biology

Institute of Arctic Biology; Department of Biology and Wildlife; University of Alaska Fairbanks Fairbanks AK 99775 Unites States

(907) 474-7972 (907) 474-6967 Associated party Karl Olson Technician

Institute of Arctic Biology University of Alaska Fairbanks P.O. Box 757000 Fairbanks AK 99775 United States

(907) 474-5104 Associated party 2022-03-25 PAR sensors measure solar radiation in the 400 to 700 nm waveband in microEinsteins per sq. m. per second. The average hourly reading is converted to microEinsteins per sq. m. per hour and summed over 24 hours to obtain daily Einsteins per sq. m. Sensors are removed at the end of September for annual calibrations and replaced back at the sites by the first of May each year. photosynthetically active radiation photosynthetically active radiation climate solar radiation Climate

This work has been produced as part of the Long Term Ecological Research Program and data users should adhere to the Data Use Agreement of the Long Term Ecological Research Network. The consumer of these data (“Data User” herein) has an ethical obligation to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or coauthorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available “as is.” The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you.

It is considered a matter of professional ethics to acknowledge the work of other scientists. Thus, the Data User should properly cite the Data Set in any publications or in the metadata of any derived data products that were produced using the Data Set. Citation should take the following general form: Creator(s), Year of Data Publication, Title of Dataset, Publisher, Dataset identifier, Dataset URL, Dataset DOI. For Example: Van Cleve, Keith; Chapin, F. Stuart; Ruess, Roger W. 2016. Bonanza Creek Experimental Forest: Hourly Temperature (sample, min, max) at 50 cm and 150 cm from 1988 to Present, Bonanza Creek LTER - University of Alaska Fairbanks. BNZ:1, http://www.lter.uaf.edu/data/data-detail/id/1. doi:10.6073/pasta/725db90d86686be13e6d6b2da5d61217.

The Data User should acknowledge any institutional support or specific funding awards referenced in the metadata accompanying this dataset in any publications where the Data Set contributed significantly to its content. Acknowledgements should identify the supporting party, the party that received the support, and any identifying information such as grant numbers. For example: Data are provided by the Bonanza Creek LTER, a partnership between the University of Alaska Fairbanks, and the U.S. Forest Service. Significant funding for collection of these data was provided by the National Science Foundation Long-Term Ecological Research program (NSF Grant numbers DEB-2224776, DEB-1636476, DEB-1026415, DEB-0620579, DEB-0423442, DEB-0080609, DEB-9810217, DEB-9211769, DEB-8702629) and by the USDA Forest Service, Pacific Northwest Research Station (Agreement # RJVA-PNW-20-JV-11261932-018).

The Data User will notify the Data Set Contact when any derivative work or publication based on or derived from the Data Set is distributed.

The Data Set has been released in the spirit of open scientific collaboration. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.

While substantial efforts are made to ensure the accuracy of data and documentation contained in this Data Set, complete accuracy of data and metadata cannot be guaranteed. All data and metadata are made available in its present condition. The Data User holds all parties involved in the production or distribution of the Data Set harmless for damages resulting from its use or interpretation.

http://www.lter.uaf.edu/data/data-detail/id/155 Dataset geographic description information is unavailable. {datafile/geoCoverage is empty} -148.3537914 -148.1426888 64.76810641 64.67834557 1988-06-01 2021-12-31

These data have not been thoroughly reviewed and therefore are not guaranteed to be free of errors or inconsistencies. Flags denotes condition of data: G = Good M = Missing Q = Questionable E = Estimated Missing data summary: 1988: FP3A: 6/7/1988 - site installed 6/21/1988-6/28/1988 - DSP error UP2A: 6/3/1988 - site installed 1989: FP1A: Data not included, could not retri Comments: FP1A: Missing 8 hrs 06/28/2001, Missing 4 hrs 06/29/2001. FP2A: Missing 15 hrs 04/05/2001, Missing 12 hrs 04/14/2001, Missing 3 hrs 04/15/2001. FP3A: Missing 13 hrs 07/17/2001, Missing 8 hrs 07/18/2001. FP4A: Missing 12 hrs 09/05/2001, Missing 09/06/2001 ? 09/13/2001 Dead Battery. FP5A: Missing 3 hrs 08/22/2001, Missing 2 hrs 10/01/2001, Missing 10/02/2001 ? 12/31/2001 Sensor not functioning. UP3A: Missing 9 hrs 09/07/2001, Missing 6 hrs 09/08/2001. Flags denotes condition of data:G = GoodM = MissingQ = QuestionableE = EstimatedMissing data summary:1988:FP3A:6/7/1988 - site installed6/21/1988-6/28/1988 - DSP errorUP2A:6/3/1988 - site installed1989:FP1A: Data not included, could not retrieve from stored archives.FP2A:6/6/1989 - site installled6/13/1989 - 7/6/1989 - logger moved to another site.FP3A:5/7/1989 - 5/8/1989 - missing 14 and 11 hours.FP4A:5/24/1989 - PAR sensor installedFP5A:8/2/1989 - PAR sensor installed8/15/1989 - 8/22/1989 - logger moved to another site.UP1A:5/18/1989 - PAR sensor installedUP2A:5/3/1989 - 5/10/1989 - DSP error6/14/1989 - 6/16/1989 - EZ moved to another site12/23/1989 - 12/27/1989 - DSP fullUP3A:5/18/1989 - PAR sensor installled1990:FP2A:11/10/1990 - 11/14/1990 - DSP error11/23/1990 - 12/05/1990 - Dead EZ loggerFP5A:2/11/1990 - 3/7/1990 - Dead EZ loggerUP1A:5/3/1990 - 5/10/1990 - DSP errorUP2A:3/11/1990 - 3/14/1990 - DSP errorUP3A:2/27/1990 - 3/21/1990 - Dead EZ logger8/29/1990 - 9/5/1990 - Dead EZ logger12/22/1990 - 12/31/1990 - DSP full1991:FP1A:5/4/1991 - 5/15/1991 - site flooded, logger destroyed7/3/1991 - PAR sensor installed7/22/1991 - 9/11/1991 - missing data, no explaination.FP4A:7/9/1991 - 7/17/1991 - Dead EZ loggerFP5A:1/1/1991 - 1/23/1991 - Dead battery2/8/1991 - 3/20/1991 - Dead EZ loggerUP3A:1/1/1991 - 3/11/1991 - Dead EZ logger1992:FP1A:1/13/1992 - 1/14/1992 - 12 and 15 hrs missing4/14/1992 - 4/28/1992 - DSP error4/28/1992 - 6/10/1992 - logger removed for floodingFP5A:1/1/1992 - 2/25/1992 - dead battery3/2/1992 - 3/10/1992 - Dead EZ loggerUP1A:6/9/1992 - 4 hrs missingUP3A:7/7/1992 - 7/21/1992 - Dead EZ logger1993:FP1A:4/14/1993 - 5/5/1993 - removed for breakupFP3A:6/2/1993 - 7/7/1993 - DSP errorUP1A:2/19/1993 - 3/3/1993 - DSP error4/19/1993 - 5/6/1993 - dead EZ logger11/20/1993 - 12/1/1993 - Dead EZ loggerUP2A:4/7/1993 - 5/11/1993 - Dead EZUP3A:11/3/1993 - 8 hrs missing11/17/1993 - 12/2/1993 - Dead EZ logger1994:FP1A:9/21/1994 - 12/31/1994 - sensor removed for recalibrationFP2A:9/21/1994 - 12/31/1994 - sensor removed for recalibrationFP3A:8/3/1994 - 9/7/1994 - DSP errorFP4A:7/6/1994 - 7/13/1994 - dead EZ loggerFP5A:9/21/1994 - 12/31/1994 - sensor removed for recalibrationUP1A:8/30/1994 - 9/20/1994 - Dead EZ logger10/4/1994 - 12/31/1994 - sensor removed for recalibrationUP2A:1/5/1994 - 2/3/1994 - DSP errorUP3A:1/1/1994 - 1/13/1994 - Dead EZ logger2/13/1994 - 3/11/1994 - Dead EZ logger7/5/1994 - 7/12/1994 - Dead EZ logger10/4/1994 - 12/31/1994 - sensor removed for recalibration1995:FP1A:1/1/1995 - 3/23/1995 - sensor removed for recalibrationFP2A:1/1/1995 - 3/9/1995 - sensor removed for recalibrationFP4A:1/1/1995 - 3/23/1995 - sensor removed for recalibrationFP5A:1/1/1995 - 3/23/1995 - sensor removed for recalibrationUP1A:1/1/1995 - 5/9/1995 - sensor removed for recalibration9/8/1995 - 9/26/1995 - logger dead, shorted wireUP2A:1/1/1995 - 5/10/1995 - sensor removed for recalibrationUP3A:1/1/1995 - 4/12/1995 - sensor removed for recalibration1996:FP1A:1/9/1996 - 1/10/1996 loose wire5/1/1996 - 5/8/1996 logger pulled for breakup flooding.6/18/1996 - 6/26/1996 data lost from incomplete dump.FP1A: 8/9/97 - 8/20/97, logger pulled because of flooding.FP2A: 4/26/97 - 4/30/97, Loose and chewed wires resulted in bad readings.9/3/97- changed battery and lost 1 hr of data.FP3A:9/10/97 - 9/12/97, data overwriten on storage module, collected 2 days too late in January.UP2A:10/1/97 - installing new soil temps probes, missed 1 hour.1998:FP1A:1/14/1998 - 3/26/1998 sensor removed for calibration.FP2A:1/14/1998 - 3/26/1998 sensor removed for calibration.7/27/1998 - 7/29/1998 chewed wires, logger dead.FP3A:1/15/1998 - 5/13/1998 sensor removed for calibration.FP4A:1/21/1998 - 5/13/1998 sensor removed for calibration.FP5A:1/21/1998 - 5/13/1998 sensor removed for calibration.UP1A:2/12/1998 - 4/9/1998 sensor removed for calibration.8/25/1998 - 4 hours missing, low battery voltage.UP2A:1/14/1998 - 4/12/1998 sensor removed for calibration.UP3A:1/7/1998 - 4/1/1998 sensor removed for calibration.8/25/1998 2 hours missing, changed battery.11/26/1998 - 11/27/1998 14 hours missing, incomplete data dump.1999:FP1A:5/5/1999 - 5/19/1999 Data garbled, reason unknown.7/7/1999 - 7/14/1999 Dead storage module battery.9/9/1999 - 9/14/1999 Battery wire chewed.FP3A:9/14/1999 - 9/22/1999 Data overwrited on storage module.11/3/1999 - 11/4/1999 6 hours and 9 hours missing, reason unknown.FP4A:5/19/1999 - 6/9/1999 Dead storage module battery.9/14/1999 - 10/2/1999 Data overwrited on storage module.UP1A:4/17/1999 - 4/18/1999 11 hours and 4 hours missing, reason unknown.5/9/1999 - 5/11/1999 Data garbled, reason unknown.FP1A:11/14/2000 - 11 hrs. missing, reason unknown.FP3A:8/18/2000 - estimated, 1 hr missing.9/13/2000 - 9/17/2000 data overwriten on storage module.FP4A:3/26/2000 - 15 hrs missing, reason unknown.9/13/2000 - estimated, 1 hr missing.10/16/2000 - 14 hrs missing, reason unknown.10/17/2000 - estimated, 1 hr missing.FP5A:9/13/2000 - estimated, 1 hr missing.UP1A:8/2/2000 - 8/8/2000 missing data, battery flooded.

Ongoing

Bonanza Creek LTER Data Manager

Boreal Ecology Cooperative Research Unit University of Alaska Fairbanks P.O. Box 756780 Fairbanks AK 99775 USA

907-474-6364 907-474-6251 uaf-bnz-im-team@alaska.edu http://www.lter.uaf.edu Bonanza Creek LTER

Boreal Ecology Cooperative Research Unit University of Alaska Fairbanks P.O. Box 756780 Fairbanks AK 99775 USA

907-474-6364 Bonanza Creek LTER

Starting in 2020, many of the successional replicate climate stations were retired from service and those data streams will terminate.

Photosynthetically active radiation (PAR) is measured every five minutes with an average recorded hourly using Licor PAR sensors (LI-190SZ Quantum sensor). Sensors are returned to Licor for recalibration every two years.

LTER1 -- 100 (LTER1) is the Bonanza Creek Experimental Forest's primary upland weather station. More intensive climate data is collected at this station than the other upland stations.. Site alternate names: 100 -148.3163468 -148.3163468 64.7429558 64.7429558 LTER2 -- LTER2, the second Bonanza Creek Experimental Forest full weather station, was established to monitor the climate of the floodplain region of BCEF. This site is located adjacent to the Tanana River in BCEF.. Site alternate names: 200, LTER #200, GPIVT, Gravel Pit IV, gp4t -148.2549125 -148.2549125 64.69889576 64.69889576 UP1A -- UP1A was established to follow the development of vegetation following the burning of a well developed 200 year old white spruce stand on a south facing slope. The vegetation has progressed from an herbaceous community following the fire to an open hardwood stand.. Site alternate names: 111, Midslope White Spruce (MW), Rosie Creek Fire studies: Gregory stand #806, Zasada stand: Bonanza Creek #2 (white spruce seed study), Reserve West (Juday), FSL-LD-UP1A_ws -148.3027284 -148.3027284 64.73554387 64.73554387 FP5C -- FP5C is located on an older terrace of the Tanana River on the south side of the river opposite Sam Charley Island. The climate station and neighboring research plots were burned in August of 2010 by the Willow Creek Wildfire.. Site alternate names: 253, BCEFY3 -148.1472629 -148.1472629 64.71361404 64.71361404 FP4A -- Mature white spruce. Site alternate names: 241, SMVIIIC, FSL-LD-FP4A_ws, VIIIWS, VIIIAC -148.2368605 -148.2368605 64.67878586 64.67878586 FP3A -- Mixed Balsam Poplar and White Spruce (Open Populus balsamifera-Picea glauca community). Site alternate names: 231, FSL-LD-FP3A_poplar -148.15094 -148.15094 64.72322993 64.72322993 FP2A -- FP2A is located adjacent to the LTER-2 weather station on a terrace that formed ca 1965.. Site alternate names: 221, GPIVC, GP4C, BCIV, VAC, VAT -148.2524731 -148.2524731 64.69878244 64.69878244 FP1A -- FP1A is located on a low early successional terrace (1.8 - 2 m above winter low river level) adjacent to the Tanana River. Vegetation establishment occurred in 1982 to 1983. Significant bank erosion has occurred since the establishment of the study area, resulting in loss of some study plots.. Site alternate names: 211, GPIIC, Gravel Pit Willow, BCII, IIIAC, IIIAT, IIIBC, IIIBT -148.2576912 -148.2576912 64.69859835 64.69859835 UP3A -- Mature white spruce spruce stand on a south-facing slope. Site alternate names: 131, LTER #131, Tower site: Parks Hwy, South side: Gregory stand #148, Zasada stand: Bonanza Creek - 1 (seed studies), Semi-intensive site #12, Juday, Parks Loop West, Tower Site, FSL-LD-UP3A_ws -148.2795018 -148.2795018 64.76742521 64.76742521 FP5A -- This is a subxeric-mesic, black spruce site on the Tanana River floodplain.. Site alternate names: 251, BCEFM1 -148.2490622 -148.2490622 64.68147876 64.68147876 UP2A -- Closed Mixed White Spruce - Paper Birch Stand. Site alternate names: 121, LTER #121, FSL-LD-UP2A_birch -148.35568 -148.35568 64.69546067 64.69546067 UP4A -- This is a subxeric-mesic, black spruce site.. Site alternate names: BCEFM4 -148.2986802 -148.2986802 64.76810641 64.76810641 CRREL-Met -- This is considered the primary climate station in the Caribou Poker Creeks Research Watershed. Located in the lower part of the watershed near the confluence of Caribou and Poker creeks, this station consists of a 12-meter tower with various atmospheric sensors, a separate tower with long and short wave radiometers, ground temperature sensors and soil moisture probes at various depths, plus an older site about 25 meters away with two air temperature sensors and additional ground temperature thermistors. . Site alternate names: CRREL, CRREL-Mets, CRREL AT, CRAT, CRRELAT -147.4903787 -147.4903787 65.15425986 65.15425986 1988-06-01 2021-12-31

hourly

Keith Van Cleve Bonanza Creek LTER Lead Principal Investigator Principal Investigator F.S. Stuart Chapin Bonanza Creek LTER Lead Principal Investigator

Department of Biology and Wildlife; Institute of Arctic Biology: University of Alaska Fairbanks 193 Arctic Health P.O. Box 757000 Fairbanks AK 99775 United States

(907) 455-6408 (907) 474-6967 terry.chapin@alaska.edu http://terrychapin.org/ Principal Investigator Roger W. Ruess Bonanza Creek LTER Lead Principal Investigator

Institute of Arctic Biology University of Alaska Fairbanks P.O. Box 757000 Fairbanks AK 99775-0180 United States

(907) 474-7153 (907) 474-6967 rwruess@alaska.edu http://www.iab.uaf.edu/~roger_ruess/ Principal Investigator Michelle Cailin Mack Bonanza Creek LTER Lead Principal Investigator

Northern Arizona University: Ecosystem Science and Society Center (ECOSS) PO Box 5620 Flagstaff AZ 86011 United States

(928) 523-9415 Michelle.Mack@nau.edu https://macklab.nau.edu/ Principal Investigator NSF Grant numbers DEB-2224776, DEB-1636476, DEB-1026415, DEB-0620579, DEB-0423442, DEB-0080609, DEB-9810217, DEB-9211769, DEB-8702629 USDA Forest Service, Pacific Northwest Research Station (Agreement # RJVA-PNW-20-JV-11261932-018) 155_PAR_FP1A_1989-2016.txt Average hourly readings from PAR sensors converted to microEinsteins per sq. m. per hour and summed over 24 hours to obtain daily Einsteins per sq. m. 155_PAR_FP1A_1989-2016.txt 1 \n \n column , http://www.lter.uaf.edu/php/download_data.php?f=/ascii/script_outputs/155_PAR_FP1A_1989-2016.txt site site Site Id string Site Id date date date of reading string YYYY-MM-DD hour hour hour of reading integer hhhh real measurment measurment measurment type string measurment type value value PAR value float dimensionless real NULL Missing Value unit unit unit of value for PAR string unit of value for PAR flag flag data quality flag string data quality flag 155_PAR_FP2A_1989-2016.txt Average hourly readings from PAR sensors converted to microEinsteins per sq. m. per hour and summed over 24 hours to obtain daily Einsteins per sq. m. 155_PAR_FP2A_1989-2016.txt 1 \n \n column , http://www.lter.uaf.edu/php/download_data.php?f=/ascii/script_outputs/155_PAR_FP2A_1989-2016.txt site site Site Id string Site Id date date date of reading string YYYY-MM-DD hour hour hour of reading integer hhhh real measurment measurment measurment type string measurment type value value PAR value float dimensionless real NULL Missing Value unit unit unit of value for PAR string unit of value for PAR flag flag data quality flag string data quality flag 155_PAR_FP3A_1989-2016.txt Average hourly readings from PAR sensors converted to microEinsteins per sq. m. per hour and summed over 24 hours to obtain daily Einsteins per sq. m. 155_PAR_FP3A_1989-2016.txt 1 \n \n column , http://www.lter.uaf.edu/php/download_data.php?f=/ascii/script_outputs/155_PAR_FP3A_1989-2016.txt site site Site Id string Site Id date date date of reading string YYYY-MM-DD hour hour hour of reading integer hhhh real measurment measurment measurment type string measurment type value value PAR value float dimensionless real NULL Missing Value unit unit unit of value for PAR string unit of value for PAR flag flag data quality flag string data quality flag 155_PAR_FP4A_1989-2016.txt Average hourly readings from PAR sensors converted to microEinsteins per sq. m. per hour and summed over 24 hours to obtain daily Einsteins per sq. m. 155_PAR_FP4A_1989-2016.txt 1 \n \n column , http://www.lter.uaf.edu/php/download_data.php?f=/ascii/script_outputs/155_PAR_FP4A_1989-2016.txt site site Site Id string Site Id date date date of reading string YYYY-MM-DD hour hour hour of reading integer hhhh real measurment measurment measurment type string measurment type value value PAR value float dimensionless real NULL Missing Value unit unit unit of value for PAR string unit of value for PAR flag flag data quality flag string data quality flag 155_PAR_FP5A_1989-2016.txt Average hourly readings from PAR sensors converted to microEinsteins per sq. m. per hour and summed over 24 hours to obtain daily Einsteins per sq. m. 155_PAR_FP5A_1989-2016.txt 1 \n \n column , http://www.lter.uaf.edu/php/download_data.php?f=/ascii/script_outputs/155_PAR_FP5A_1989-2016.txt site site Site Id string Site Id date date date of reading string YYYY-MM-DD hour hour hour of reading integer hhhh real measurment measurment measurment type string measurment type value value PAR value float dimensionless real NULL Missing Value unit unit unit of value for PAR string unit of value for PAR flag flag data quality flag string data quality flag 155_PAR_FP5C_2004-2016.txt Average hourly readings from PAR sensors converted to microEinsteins per sq. m. per hour and summed over 24 hours to obtain daily Einsteins per sq. m. 155_PAR_FP5C_2004-2016.txt 1 \n \n column , http://www.lter.uaf.edu/php/download_data.php?f=/ascii/script_outputs/155_PAR_FP5C_2004-2016.txt site site Site Id string Site Id date date date of reading string YYYY-MM-DD hour hour hour of reading integer hhhh real measurment measurment measurment type string measurment type value value PAR value float dimensionless real NULL Missing Value unit unit unit of value for PAR string unit of value for PAR flag flag data quality flag string data quality flag 155_PAR_LTER1_1988-2021.txt Average hourly readings from PAR sensors converted to microEinsteins per sq. m. per hour and summed over 24 hours to obtain daily Einsteins per sq. m. 155_PAR_LTER1_1988-2021.txt 1 \n \n column , http://www.lter.uaf.edu/php/download_data.php?f=/ascii/script_outputs/155_PAR_LTER1_1988-2021.txt site site Site Id string Site Id date date date of reading string YYYY-MM-DD hour hour hour of reading integer hhhh real measurment measurment measurment type string measurment type value value PAR value float dimensionless real NULL Missing Value unit unit unit of value for PAR string unit of value for PAR flag flag data quality flag string data quality flag 155_PAR_LTER2_2008-2021.txt Average hourly readings from PAR sensors converted to microEinsteins per sq. m. per hour and summed over 24 hours to obtain daily Einsteins per sq. m. 155_PAR_LTER2_2008-2021.txt 1 \n \n column , http://www.lter.uaf.edu/php/download_data.php?f=/ascii/script_outputs/155_PAR_LTER2_2008-2021.txt site site Site Id string Site Id date date date of reading string YYYY-MM-DD hour hour hour of reading integer hhhh real measurment measurment measurment type string measurment type value value PAR value float dimensionless real NULL Missing Value unit unit unit of value for PAR string unit of value for PAR flag flag data quality flag string data quality flag 155_PAR_UP1A_1989-2016.txt Average hourly readings from PAR sensors converted to microEinsteins per sq. m. per hour and summed over 24 hours to obtain daily Einsteins per sq. m. 155_PAR_UP1A_1989-2016.txt 1 \n \n column , http://www.lter.uaf.edu/php/download_data.php?f=/ascii/script_outputs/155_PAR_UP1A_1989-2016.txt site site Site Id string Site Id date date date of reading string YYYY-MM-DD hour hour hour of reading integer hhhh real measurment measurment measurment type string measurment type value value PAR value float dimensionless real NULL Missing Value unit unit unit of value for PAR string unit of value for PAR flag flag data quality flag string data quality flag 155_PAR_UP2A_1988-2016.txt Average hourly readings from PAR sensors converted to microEinsteins per sq. m. per hour and summed over 24 hours to obtain daily Einsteins per sq. m. 155_PAR_UP2A_1988-2016.txt 1 \n \n column , http://www.lter.uaf.edu/php/download_data.php?f=/ascii/script_outputs/155_PAR_UP2A_1988-2016.txt site site Site Id string Site Id date date date of reading string YYYY-MM-DD hour hour hour of reading integer hhhh real measurment measurment measurment type string measurment type value value PAR value float dimensionless real NULL Missing Value unit unit unit of value for PAR string unit of value for PAR flag flag data quality flag string data quality flag 155_PAR_UP3A_1989-2016.txt Average hourly readings from PAR sensors converted to microEinsteins per sq. m. per hour and summed over 24 hours to obtain daily Einsteins per sq. m. 155_PAR_UP3A_1989-2016.txt 1 \n \n column , http://www.lter.uaf.edu/php/download_data.php?f=/ascii/script_outputs/155_PAR_UP3A_1989-2016.txt site site Site Id string Site Id date date date of reading string YYYY-MM-DD hour hour hour of reading integer hhhh real measurment measurment measurment type string measurment type value value PAR value float dimensionless real NULL Missing Value unit unit unit of value for PAR string unit of value for PAR flag flag data quality flag string data quality flag 155_PAR_UP4A_2005-2016.txt Average hourly readings from PAR sensors converted to microEinsteins per sq. m. per hour and summed over 24 hours to obtain daily Einsteins per sq. m. 155_PAR_UP4A_2005-2016.txt 1 \n \n column , http://www.lter.uaf.edu/php/download_data.php?f=/ascii/script_outputs/155_PAR_UP4A_2005-2016.txt site site Site Id string Site Id date date date of reading string YYYY-MM-DD hour hour hour of reading integer hhhh real measurment measurment measurment type string measurment type value value PAR value float dimensionless real NULL Missing Value unit unit unit of value for PAR string unit of value for PAR flag flag data quality flag string data quality flag 155_PAR_CRREL_2010-2021.txt Average hourly readings from PAR sensors converted to microEinsteins per sq. m. per hour and summed over 24 hours to obtain daily Einsteins per sq. m. 155_PAR_CRREL_2010-2021.txt 1 \n \n column , http://www.lter.uaf.edu/php/download_data.php?f=/ascii/script_outputs/155_PAR_CRREL_2010-2021.txt site site Site Id string Site Id date date date of reading string YYYY-MM-DD hour hour hour of reading integer hhhh real measurment measurment measurment type string measurment type value value PAR value float dimensionless real NULL Missing Value unit unit unit of value for PAR string unit of value for PAR flag flag data quality flag string data quality flag