Station 27 — Kentwood: QC report

ULM_Stn27 · CR1000X s/n 59186 · table FiveMin · file header program CPU:SO397545_Univ_of_LA_Measonet_Rev09282026.Stn27.wndcor.CR1X
2026-01-06 13:50 to 2026-10-04 05:15 logger clock · generated 2026-10-04 03:19

77,933unique 5-min records

32,891values flagged failure

937,854values flagged suspect

0dated corrections applied

Station-level findings

level	test	finding
failure	direction_vs_other_sensors	10ft-sonic: median daily difference -45 deg over 204 days
failure	neighbor_direction	30ft: median offset vs MCB, HDC, BTR = +44 deg (IQR +41 to +46, 74 days)
failure	neighbor_direction	sonic: median offset vs MCB, HDC, BTR = +47 deg (IQR +46 to +50, 37 days)
failure	direction_vs_lsm_neighbors	30ft: median offset vs trusted LSM neighbors (28, 19) = +43 deg over 88 days
failure	direction_vs_lsm_neighbors	sonic: median offset vs trusted LSM neighbors (28, 19) = +48 deg over 40 days
suspect	direction_vs_other_sensors	30ft-10ft: median daily difference +41 deg over 205 days
suspect	solar_timing	2026-03: measured solar curve +11 min vs expected (10 clear days) - check logger clock or pyranometer level/shading
suspect	soil_depth_duplicate	60 cm duplicates 50 cm on 219 days
suspect	soil_depth_duplicate	75 cm duplicates 60 cm on 258 days
suspect	soil_depth_duplicate	100 cm duplicates 75 cm on 262 days
suspect	clock_step	logger clock stepped +1 h (from 2026-03-08 14:55:00 to 2026-03-08 16:00:00)
info	neighbor_direction	10ft: median offset vs MCB, HDC, BTR = +1 deg (IQR -2 to +4, 44 days)
info	solar_timing	overall solar timing offset +4 min over 48 clear days (positive = later than expected)
info	lsm_neighbors	LSM neighbors: 28 (36 km), 31 (81 km), 19 (90 km), 36 (96 km)
info	vs_lsm_neighbors	AirTF_Avg: median bias vs LSM neighbors -1.2 F over 269 days
info	vs_lsm_neighbors	RH_Avg: median bias vs LSM neighbors +0.0 % over 269 days
info	vs_lsm_neighbors	SeaLvlBaro_inHg_Avg: median bias vs LSM neighbors +0.010 inHg over 249 days
info	vs_lsm_neighbors	rain total 46.2 in vs LSM neighbor median 47.9 in over shared days (ratio 0.96); missed-rain days 0, rain-only-here days 0
info	vs_lsm_neighbors	SlrW_Avg: daily solar total 1.01 x LSM neighbor median over 258 days
info	direction_vs_lsm_neighbors	10ft: median offset vs trusted LSM neighbors (28, 19) = +2 deg over 60 days
info	file_summary	77933 rows read, 77933 unique records, 2026-01-06 13:50:00 to 2026-10-04 05:15:00 (logger clock)
info	files_combined	record combined from 2 files: ULM_Stn27_FiveMin.dat.backup (2026-01-06 to 2026-09-28, SO397545 Univ of LA Measonet Rev01052026.Stn27.wndcor.CR1X); ULM_Stn27_FiveMin.dat (2026-09-28 to 2026-10-04, SO397545_Univ_of_LA_Measonet_Rev09282026.Stn27.wndcor.CR1X)
info	record_reset	RECORD reset 216 -> 0 (program load or table reset)
info	record_reset	RECORD reset 76039 -> 0 (program load or table reset)
info	gap	1 missing records after 2026-01-07 07:50:00
info	ch200_stale	13 records where the CH200 didn't answer: its other values (left over from the last good read) set to missing

Wind direction

By logger-program period (vs airports, after applied corrections)

Measured offset W = 338°. Predicted 30-ft rotation with no correction code = 180 − W; with the sign-flipped line = 360 − 2W.

period (logger clock)	records	30-ft	sonic	10-ft	if no code	if sign-flipped	best explanation
2026-01-07 08:00 to 2026-09-28 09:35	76,040	+44°	+47°	+1°	-158°	+44°	sign-flipped code
2026-09-28 09:40 to 2026-10-04 05:05	1,674	-1°	+3°	–	-158°	+44°	correct / aligned

Proposed corrections (not applied; copy into stations.yaml to use):

sensor	start	end	add	apply	reason
30ft	2026-01-07 08:00	2026-09-28 09:35	-44	False	model: sign-flipped code with W=338; observed +44 deg (airports)
sonic	2026-01-07 08:00	2026-09-28 09:35	-44	False	model: sign-flipped code with W=338; observed +47 deg (airports)

Flags by variable and month

Comparison with nearby LSM stations

Temperature sensor agreement

Wind speed ratios and solar timing

Power: battery, solar charging and load

Last 7 days	this station	network / expected
Overnight battery minimum	12.83 V	12.83 V
Lowest battery reading	12.82 V
Charged in / used per day	4.4 / 2.6 Ah
Reached full charge (float)	8:30 am	8:20 am
Solar input, sunny-day peak	20.9 V	~21 V
Overnight draw	0.114 A
Charger temperature max	39 °C
Charger minus logger voltage	+0.06 V	wire drop
CH200 readings missing	0.0%
Battery vs network, last 30 days	+0.00 V per 30 days	falling = weakening

Flag counts by test

variable	test	level	records	% of record
WindDir_Sonic_D1_WVT	direction_vs_other_sensors	failure	30816	39.54
WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	failure	1152	1.48
WindDir_30ft_D1_WVT	direction_vs_neighbors	failure	576	0.74
WindDir_30ft_D1_WVT	direction_vs_other_sensors	failure	288	0.37
T109_10ft_F_Avg	temperature_triad	failure	17	0.02
SoilTmpF_100cm_Avg	range	failure	3	0.00
SoilTmpF_10cm_Avg	range	failure	3	0.00
SoilTmpF_20cm_Avg	range	failure	3	0.00
SoilTmpF_30cm_Avg	range	failure	3	0.00
SoilTmpF_40cm_Avg	range	failure	3	0.00
SoilTmpF_50cm_Avg	range	failure	3	0.00
SoilTmpF_5cm_Avg	range	failure	3	0.00
SoilTmpF_60cm_Avg	range	failure	3	0.00
SoilTmpF_75cm_Avg	range	failure	3	0.00
AbsBaro_inHg_Avg	range	failure	2	0.00
SeaLvlBaro_inHg_Avg	range	failure	2	0.00
WS_Sonic_mph_Avg	sonic_error_value	failure	2	0.00
WS_Sonic_mph_Max	range	failure	2	0.00
WS_Sonic_mph_Max	sonic_error_value	failure	2	0.00
WindDir_Sonic_D1_WVT	sonic_error_value	failure	2	0.00
WindDir_Sonic_SD1_WVT	sonic_error_value	failure	2	0.00
BatteryCurrent	range	failure	1	0.00
T109_10ft_F_Avg	range	failure	1	0.00
T109_30ft_F_Avg	range	failure	1	0.00
T109_30ft_F_Avg	temperature_triad	failure	1	0.00
WS_Sonic_mph_Avg	range	failure	1	0.00
BulkEC_100cm_Avg	soil_depth_duplicate	suspect	75253	96.56
Ka_100cm_Avg	soil_depth_duplicate	suspect	75253	96.56
SoilTmpF_100cm_Avg	soil_depth_duplicate	suspect	75253	96.56
VWC_100cm_Avg	soil_depth_duplicate	suspect	75253	96.56
BulkEC_75cm_Avg	soil_depth_duplicate	suspect	74102	95.08
Ka_75cm_Avg	soil_depth_duplicate	suspect	74102	95.08
SoilTmpF_75cm_Avg	soil_depth_duplicate	suspect	74102	95.08
VWC_75cm_Avg	soil_depth_duplicate	suspect	74102	95.08
BulkEC_60cm_Avg	soil_depth_duplicate	suspect	63042	80.89
Ka_60cm_Avg	soil_depth_duplicate	suspect	63042	80.89
SoilTmpF_60cm_Avg	soil_depth_duplicate	suspect	63042	80.89
VWC_60cm_Avg	soil_depth_duplicate	suspect	63042	80.89
WindDir_30ft_D1_WVT	direction_vs_other_sensors	suspect	57875	74.26
WindDir_Sonic_D1_WVT	direction_vs_other_sensors	suspect	57587	73.89
WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	suspect	23040	29.56
WindDir_30ft_D1_WVT	direction_vs_neighbors	suspect	20736	26.61
WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	suspect	10944	14.04
WindDir_Sonic_D1_WVT	direction_vs_neighbors	suspect	10080	12.93
T109_10ft_F_Avg	temperature_triad	suspect	2120	2.72
BattV_Avg	battery_vs_network	suspect	2016	2.59
T109_30ft_F_Avg	temperature_triad	suspect	495	0.64
WindDir_10ft_D1_WVT	direction_vs_neighbors	suspect	288	0.37
BattV_Avg	battery_low_overnight	suspect	287	0.37
BatteryVoltage	charger_readings_missing	suspect	275	0.35
AirTF_Avg	temperature_triad	suspect	109	0.14
SeaLvlBaro_inHg_Avg	step	suspect	20	0.03
DewPtF	step	suspect	8	0.01
SlrW_Avg	solar_above_clearsky	suspect	7	0.01
AirTF_Avg	step	suspect	4	0.01
RH_Avg	step	suspect	4	0.01
T109_10ft_F_Avg	step	suspect	4	0.01
T109_30ft_F_Avg	step	suspect	2	0.00

Largest failure events

start (local)	end (local)	n	variable	test	detail
2026-04-07 00:00	2026-04-17 23:55	3168	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-03-01 00:00	2026-03-07 23:55	2016	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-03-29 00:00	2026-04-04 23:55	2016	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-08-27 00:00	2026-09-02 23:55	2016	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-04-19 00:00	2026-04-23 23:55	1440	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-05-16 00:00	2026-05-19 23:55	1152	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-01-08 00:00	2026-01-11 23:55	1152	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-07-20 00:00	2026-07-23 23:55	1152	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-03-25 00:00	2026-03-27 23:55	864	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-01-24 00:00	2026-01-26 23:55	864	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-02-21 00:00	2026-02-23 23:55	864	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-09-21 00:00	2026-09-23 23:55	864	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-05-12 00:00	2026-05-14 23:55	864	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-06-03 00:00	2026-06-05 23:55	864	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-05-26 00:00	2026-05-28 23:55	864	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-05-01 00:00	2026-05-02 23:55	576	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-03-16 00:00	2026-03-17 23:55	576	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-04-27 00:00	2026-04-28 23:55	576	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-09-16 00:00	2026-09-17 23:55	576	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-05-07 00:00	2026-05-08 23:55	576	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-09-08 00:00	2026-09-09 23:55	576	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-08-24 00:00	2026-08-25 23:55	576	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-08-07 00:00	2026-08-08 23:55	576	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-02-14 00:00	2026-02-15 23:55	576	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-02-04 00:00	2026-02-05 23:55	576	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-01-30 00:00	2026-01-31 23:55	576	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-02-06 00:00	2026-02-06 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-01-21 00:00	2026-01-21 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-01-28 00:00	2026-01-28 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-06-05 00:00	2026-06-05 23:55	288	WindDir_30ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-06-08 00:00	2026-06-08 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-08-16 00:00	2026-08-16 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-08-02 00:00	2026-08-02 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-08-13 00:00	2026-08-13 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-02-07 00:00	2026-02-07 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-02-03 00:00	2026-02-03 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-07-31 00:00	2026-07-31 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-01-14 00:00	2026-01-14 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-01-17 00:00	2026-01-17 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-07-01 00:00	2026-07-01 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg

Corrections

Applied (from stations.yaml):

None.

Documented but not applied (apply: false):

None.

How to read this

Levels: 0 good, 1 suspect, 2 failure, 9 missing. Each variable's level is in QC_<variable> in the data file; the events file lists every flagged run with the test that set it. Station-level findings summarize patterns (sensor rotation, clock offsets, duplicate soil depths) that per-record flags can't describe on their own. Wind direction flags use daily vector means, so a flagged day marks every record in that day.