"id","borehole_id","beg_date","end_date","pi_id","sensor_type","log_sys","last_calib","data_access","changes","comment","time_stamp","low_sensor"
"12","12","2006-08-24","2100-01-01","7","MADD","MADD logger","2006","on site","24.8.2006: replacement of UTL chain by a MADD system","none","2018-08-09 14:58:45","19.5"
"17","17","2011-11-01","2100-01-01","9","YSI 44008","Campbell CR1000","2011","on site","November 2011: new thermistors and logger installed (same make as before)","none","2018-08-09 14:58:45","39.5"
"18","18","2011-08-05","2100-01-01","9","YSI 46006","Campbell CR10X","2002","on site","05.08.2011: measurement interval changed from 24 h to 120 min; 22.02.2013: measurement interval changed from 120 min to 240 min; Chain taken out and replaced with UTL-3 from 24.02.2016 to 05.07.2016. New chain installed on 05.07.2016.","none","2018-08-09 14:58:45","20"
"19","19","2012-10-25","2100-01-01","9","YSI 44008","Campbell CR10X","1996","on site","25.10.2012: new logger installed (same make as before) and interval changed from 24 h to 120 min","24.06.2011-24.10.2012: No data (logger defect). Interval changed to 4h on 5.11.2015.","2018-08-09 14:58:45","17.5"
"20","20","2012-10-18","2100-01-01","9","YSI 44008","Campbell CR10X","1996","on site","18.10.2012: Interval changed from 24 h to 120 min; 07.11.2013: Thermistors were raised by 1.4 m.","Until 07.11.2013 08:00 measurement were taken at 0.5, 1.0, 2.0, 3.0, 4.0, 6.0, 8.0, 10.0, 13.5, and 17.5 m depth. Since 07.11.2013 12:00 measurement are taken at 0.6, 1.6, 2.6, 4.6, 6.6, 8.6, 12.1, and 16.1 m depth. No data for 0.6 m depth available in fall 2014 due to malfunctioning sensor. Interval changed to 4h on 5.11.2015.","2018-08-09 14:58:45","17.5"
"21","21",,"2100-01-01","9","YSI 44008","Campbell CR10X","2005","on site","2015: logger broken due to water damage; new logger installed on xx.xx.2016;","none","2018-08-09 14:58:45","52.9"
"22","22","2013-10-02","2100-01-01","9","YSI 44006","Campbell CR10X","2005","on site","2005: Change of PI from VAW to PHI.;02.10.2013: New thermistor chain installed. Measurement interval changed from 24 h to 120 min.","Borehole had been sheared off at around 16 m then. Data before 2005 and for other depths below 15.9 m are not included in the DB, and are probably also worthless according to PHI.;Data between 21.10.2010 and 02.10.2013 not included in the DB, since thermistors were drifting. New thermistor chain was installed on 02.10.2013. Before, measurements were taken at 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 7.95, 8.9, 9.9, 10.9, 11.9, 12.9, 13.9, 14.9, and 15.9 m depth. Since then, measurements are taken at 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 8.0, 10.0, 12.0 und 14.0 m depth.","2018-08-09 14:58:45","15.9"
"23","23",,"2100-01-01","9","YSI 44006","Campbell CR10X","1997","on site","1997: change of PI from VAW to PHI, borehole newly instrumented","Borehole had been sheared off at around 25 m then. Data before 1997 and for other depths below 25.2 m are not included in the DB, and are probably also worthless according to PHI.","2018-08-09 14:58:45","25.2"
"24","24",,"2100-01-01","9","YSI 44006","Campbell CR10X","2002","remote","2005: thermistor at 30 m lost; 2007: thermistors at 27.5, 25, 22.5, 20 and 18 m lost; 2011: thermistor at 16 m lost;2013: thermistor at 14 m lost","Thermistor chain is being sheared off gradually from bottom upwards. Originally also measurements at 14, 16, 18, 20, 22.5, 25, 27.5 and 30 m depth.","2018-08-09 14:58:45","13"
"7","7","2009-09-29","2100-01-01","6","YSI 44006","Campbell CR1000","2000","remote","29.9.2009: new data logger installed; 17.6.2010: measurement interval changed from 1440 min to 360 min; 21.06.2018: logging intervall changed to 1h","none","2018-08-09 14:58:45","98.3"
"3","3","2014-09-19","2100-01-01","1","YSI 44031","Campbell CR1000","2014","remote","19.09.2014: new sensor chain exchanged; 21.06.2018: logging intervall changed to 1h","none","2018-08-09 14:58:45","19.6"
"25","25","2015-09-08","2017-12-31","10","YSI 44006","Campbell CR10X","1999","on site","2015-09-08: Logger change","none","2018-08-09 14:58:45","69.59"
"26","26","2015-09-08","2017-12-31","10","YSI 44006","Campbell CR10X","1999","on site","2015-09-08: Logger change","none","2018-08-09 14:58:45","60"
"2","2",,"2100-01-01","1","YSI 44031","Campbell CR1000","2011","remote","21.06.2018: logging intervall changed to 1h","none","2018-08-09 14:58:45","34"
"4","4",,"2100-01-01","1","YSI 44031","Campbell CR1000","2015","remote","21.06.2018: logging intervall changed to 1h","none","2018-08-09 14:58:45","39"
"8","8","2009-09-29","2100-01-01","6","YSI 44006","Campbell CR1000","2000","remote","29.9.2009: new data logger installed; 21.06.2018: logging intervall changed to 1h","none","2018-08-09 14:58:45","17"
"15","15",,"2100-01-01","4","YSI 44006","Campbell CR1000","1999","remote","2007: thermistor at 1.6 m depth stopped working in December 2007;2011: station renovation in summer (logger changed from Campbell CR10X to CR1000, measurement interval changed from 24h to 2h on 22.9.2011), 2016: institution changed from UZH to UNIFR, PI changed from NOE to HAU; 21.06.2018: logging intervall changed to 1h","Prior to the renovation in summer 2011, the uppermost thermistor temperatures are also available in 6h intervals (data not in DB and never properly analyzed).","2018-08-09 14:58:45","87"
"16","16",,"2100-01-01","4","YSI 44006","Campbell CR1000","1998","remote","2001: thermistor at 13.7 m depth stopped working in August 2001;2011: station renovation in summer (logger changed from Campbell CR10X to CR1000, measurement interval changed from 6h to 2h on 22.9.2011), 2016: institution changed from UZH to UNIFR, PI changed from NOE to HAU; 21.06.2018: logging intervall changed to 1h","none","2018-08-09 14:58:45","13"
"9","9","2014-07-19","2100-01-01","7","YSI 44031","Campbell CR800","2014","on site","19.07.2014: new logging system and chain, old MADD replaced by CR800, measurement interval changed from 2h to 6h","none","2018-08-09 14:58:45","24"
"13","13",,"2100-01-01","7","MADD","MADD logger","2002","on site","none","none","2018-08-09 14:58:45","20.04"
"10","10","2014-07-19","2100-01-01","7","YSI 44031","Campbell CR800","2014","on site","19.07.2014: new logging system and chain, old MADD replaced by CR800, measurement interval changed from 2h to 6h","none","2018-08-09 14:58:45","20"
"30","30",,"2100-01-01","9","YSI 46008","Campbell CR10X","2009","remote","2006: change of PI from VAW to PHI; 2009: borehole newly instrumented; 01.06.2016: lightning struck likely, data quality of outer thermistor questionnable","none","2018-08-09 14:58:45","19.7"
"70","25","2018-01-01","2100-01-01","20","YSI 44006","Campbell CR10X","1999","on site","2015-09-08: Logger change, 2018-01-01: PI change from SPR to FAR","none","2018-11-12 15:39:24","69.59"
"71","26","2018-01-01","2100-01-01","20","YSI 44006","Campbell CR10X","1999","on site","2015-09-08: Logger change, 2018-01-01: PI change from SPR to FAR",,"2018-11-12 15:43:41",
"72","28","2018-01-01","2100-01-01","20","YSI 44006","Campbell CR10X","1999","on site","2015-09-08: Logger change, 2018-01-01: PI change from SPR to FAR",,"2018-11-12 15:44:27",
"73","39","2018-01-01","2100-01-01","20","YSI 44006","Campbell CR10X","2000","remote","2015-09-08: Logger change, 2018-01-01: PI change from SPR to FAR",,"2018-11-12 15:45:19",
"28","28","2015-09-08","2017-12-31","10","YSI 44006","Campbell CR10X","1999","on site","2015-09-08: Logger change","none","2018-08-09 14:58:45","69.7"
"39","39",,"2017-12-31","10","YSI 44006","Campbell CR10X","2000","remote","none","none","2018-08-09 14:58:45","62"
"1","1","2014-01-01","2100-01-01","1","YSI","Campbell CR1000","2014","remote","2006: changes in thermistor depths, 2014: new logger (no longer MADD) and thermistor chain installed (changes in thermistor depths!); 21.06.2018: logging intervall changed to 1h","none","2018-08-09 14:58:45","14.5"
"14","14",,"2100-01-01","4","YSI 44006","Campbell CR1000","1999","remote","2010: thermistor at 97.5 m depth stopped working in September 2010;2011: station renovation in summer (logger changed from Campbell CR10X to CR1000, measurement interval changed from 24h to 2h on 22.9.2011), 2016: institution changed from UZH to UNIFR, PI changed from NOE to HAU; 21.06.2018: logging intervall changed to 1h","Prior to the renovation in summer 2011, the uppermost thermistor temperatures are also available in 6h intervals (data not in DB and never properly analyzed).","2018-08-09 14:58:45","100"
"48","48",,"2100-01-01","17","YSI 44031","Campbell CR1000","2015","remote",,"none","2018-08-09 14:58:45","60"
"6","6",,"2100-01-01","18","YSI 44006","Campbell CR1000","1997","remote","summer 2009: renovation of entire measurement setup (logger changed from Campbelll CR10X to CR1000, interval changed from 24 h to 2 h);2013: change of PI from GRU to NOE, 2016: PI changed from NOE to BOL","At the moment only aggregated 24 h values are stored in the DB and the data for several depths are not completely included in the DB, since these data seems to be corrupted. The uppermost thermistor temperatures are theoretically also available with 6 h interval prior to the renovation, and since the renovation all thermistor temperatures are measured every 2 h. The thermistor chain is stuck and could not be recalibrated since 1997.;Some additional information about the borehole instrumentation and further references can be found in Arenson (2002): Unstable alpine permafrost: A potentially important natural hazard - Variations of geotechnical behaviour with time and temperature. PhD, ETH Zurich, 97-108.","2018-08-09 14:58:45","57.95"
"66","66",,"2100-01-01","7","YSI 44031","Campbell CR1000","2017","remote",,"none","2018-08-09 14:58:45","20.1"
