Station 11 — Alto: QC report

ULM_Stn11 · CR1000X s/n 58333 · table FiveMin · file header program CPU:SO397545_Univ_of_LA_Measonet_Rev09282026.Stn11.wndcor.CR1X
2025-04-24 13:45 to 2026-10-04 05:10 logger clock · generated 2026-10-04 03:13

151,960unique 5-min records

52,736values flagged failure

1,252,612values flagged suspect

0dated corrections applied

Station-level findings

level	test	finding
failure	neighbor_direction	30ft: median offset vs MLU, BQP, RSN = -42 deg (IQR -45 to -39, 145 days)
failure	neighbor_direction	sonic: median offset vs MLU, BQP, RSN = -41 deg (IQR -44 to -38, 157 days)
failure	direction_vs_lsm_neighbors	30ft: median offset vs trusted LSM neighbors (1, 21, 16, 20) = -45 deg over 114 days
failure	direction_vs_lsm_neighbors	sonic: median offset vs trusted LSM neighbors (1, 21, 16, 20) = -43 deg over 126 days
suspect	direction_vs_other_sensors	30ft-10ft: median daily difference -39 deg over 318 days
suspect	direction_vs_other_sensors	10ft-sonic: median daily difference +38 deg over 315 days
suspect	soil_depth_duplicate	60 cm duplicates 50 cm on 360 days
suspect	soil_depth_duplicate	75 cm duplicates 60 cm on 324 days
suspect	soil_depth_duplicate	100 cm duplicates 75 cm on 288 days
suspect	duplicate_records	4 re-appended duplicate rows in 2 blocks removed
suspect	clock_step	logger clock stepped -1 h (from 2025-11-02 19:05:00 to 2025-11-02 18:10:00)
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 MLU, BQP, RSN = -2 deg (IQR -8 to +1, 125 days)
info	solar_timing	overall solar timing offset +0 min over 139 clear days (positive = later than expected)
info	lsm_neighbors	LSM neighbors: 1 (28 km), 21 (33 km), 16 (33 km), 20 (43 km)
info	vs_lsm_neighbors	AirTF_Avg: median bias vs LSM neighbors -0.2 F over 452 days
info	vs_lsm_neighbors	RH_Avg: median bias vs LSM neighbors +1.5 % over 452 days
info	vs_lsm_neighbors	SeaLvlBaro_inHg_Avg: median bias vs LSM neighbors -0.000 inHg over 452 days
info	vs_lsm_neighbors	rain total 53.7 in vs LSM neighbor median 43.5 in over shared days (ratio 1.23); missed-rain days 0, rain-only-here days 0
info	vs_lsm_neighbors	SlrW_Avg: daily solar total 0.99 x LSM neighbor median over 425 days
info	direction_vs_lsm_neighbors	10ft: median offset vs trusted LSM neighbors (1, 21, 16, 20) = -6 deg over 87 days
info	file_summary	151964 rows read, 151960 unique records, 2025-04-24 13:45:00 to 2026-10-04 05:10:00 (logger clock)
info	files_combined	record combined from 2 files: ULM_Stn11_FiveMin.dat.backup (2025-04-24 to 2026-09-28, SO397545 Univ of LA Measonet Rev04222025.Station11.CR1X); ULM_Stn11_FiveMin.dat (2026-09-28 to 2026-10-04, SO397545_Univ_of_LA_Measonet_Rev09282026.Stn11.wndcor.CR1X)
info	record_reset	RECORD reset 110051 -> 0 (program load or table reset)
info	record_reset	RECORD reset 40254 -> 0 (program load or table reset)
info	gap	2 missing records after 2026-09-28 08:45:00
info	ch200_stale	2 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 = 215°. 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
2025-04-24 13:45 to 2026-05-11 14:10	110,022	-42°	-41°	-1°	-35°	-70°	no correction code
2026-05-11 14:15 to 2026-09-28 08:45	40,255	-79°	-77°	-7°	-35°	-70°	sign-flipped code
2026-09-28 09:00 to 2026-10-04 05:05	1,682	-2°	-1°	–	-35°	-70°	correct / aligned

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

sensor	start	end	add	apply	reason
30ft	2025-04-24 13:45	2026-05-11 14:10	35	False	model: no correction code with W=215; observed -42 deg (airports)
sonic	2025-04-24 13:45	2026-05-11 14:10	35	False	model: no correction code with W=215; observed -41 deg (airports)
30ft	2026-05-11 14:15	2026-09-28 08:45	70	False	model: sign-flipped code with W=215; observed -79 deg (airports)
sonic	2026-05-11 14:15	2026-09-28 08:45	70	False	model: sign-flipped code with W=215; observed -77 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	12.88 V	12.83 V
Lowest battery reading	12.84 V
Charged in / used per day	5.2 / 2.5 Ah
Reached full charge (float)	8:20 am	8:20 am
Solar input, sunny-day peak	20.6 V	~21 V
Overnight draw	0.104 A
Charger temperature max	39 °C
Charger minus logger voltage	-0.02 V	wire drop
CH200 readings missing	0.0%
Battery vs network, last 30 days	+0.03 V per 30 days	falling = weakening

Flag counts by test

variable	test	level	records	% of record
WindDir_30ft_D1_WVT	direction_vs_other_sensors	failure	19584	12.89
WindDir_Sonic_D1_WVT	direction_vs_other_sensors	failure	18493	12.17
WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	failure	4896	3.22
WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	failure	4895	3.22
WindDir_Sonic_D1_WVT	direction_vs_neighbors	failure	2016	1.33
WS_Sonic_mph_Avg	sensor_missing	failure	1666	1.10
WindDir_30ft_D1_WVT	direction_vs_neighbors	failure	576	0.38
WS_Sonic_mph_Avg	sonic_error_value	failure	495	0.33
WS_Sonic_mph_Max	range	failure	495	0.33
WS_Sonic_mph_Max	sonic_error_value	failure	495	0.33
WindDir_Sonic_D1_WVT	sonic_error_value	failure	495	0.33
WindDir_Sonic_SD1_WVT	sonic_error_value	failure	495	0.33
WS_Sonic_mph_Avg	range	failure	490	0.32
WS_10ft_mph_Avg	zero_speed_while_windy	failure	46	0.03
WS_10ft_mph_Max	zero_speed_while_windy	failure	46	0.03
WS_30ft_mph_Avg	zero_speed_while_windy	failure	46	0.03
WS_30ft_mph_Max	zero_speed_while_windy	failure	46	0.03
WindDir_10ft_D1_WVT	zero_speed_while_windy	failure	46	0.03
WindDir_30ft_D1_WVT	zero_speed_while_windy	failure	46	0.03
SoilTmpF_100cm_Avg	range	failure	2	0.00
SoilTmpF_10cm_Avg	range	failure	2	0.00
SoilTmpF_20cm_Avg	range	failure	2	0.00
SoilTmpF_30cm_Avg	range	failure	2	0.00
SoilTmpF_40cm_Avg	range	failure	2	0.00
SoilTmpF_50cm_Avg	range	failure	2	0.00
SoilTmpF_5cm_Avg	range	failure	2	0.00
SoilTmpF_60cm_Avg	range	failure	2	0.00
SoilTmpF_75cm_Avg	range	failure	2	0.00
AbsBaro_inHg_Avg	range	failure	1	0.00
BulkEC_5cm_Avg	range	failure	1	0.00
ChargeInputCurrent	range	failure	1	0.00
DewPtF	dewpoint_gt_air	failure	1	0.00
RH_Avg	dewpoint_gt_air	failure	1	0.00
SeaLvlBaro_inHg_Avg	range	failure	1	0.00
BulkEC_60cm_Avg	soil_depth_duplicate	suspect	103525	68.13
Ka_60cm_Avg	soil_depth_duplicate	suspect	103525	68.13
SoilTmpF_60cm_Avg	soil_depth_duplicate	suspect	103525	68.13
VWC_60cm_Avg	soil_depth_duplicate	suspect	103525	68.13
BulkEC_75cm_Avg	soil_depth_duplicate	suspect	93147	61.30
Ka_75cm_Avg	soil_depth_duplicate	suspect	93147	61.30
SoilTmpF_75cm_Avg	soil_depth_duplicate	suspect	93147	61.30
VWC_75cm_Avg	soil_depth_duplicate	suspect	93147	61.30
WindDir_30ft_D1_WVT	direction_vs_other_sensors	suspect	90279	59.41
WindDir_Sonic_D1_WVT	direction_vs_other_sensors	suspect	89188	58.69
BulkEC_100cm_Avg	soil_depth_duplicate	suspect	82777	54.47
Ka_100cm_Avg	soil_depth_duplicate	suspect	82777	54.47
SoilTmpF_100cm_Avg	soil_depth_duplicate	suspect	82777	54.47
VWC_100cm_Avg	soil_depth_duplicate	suspect	82777	54.47
WindDir_Sonic_D1_WVT	direction_vs_neighbors	suspect	41760	27.48
WindDir_30ft_D1_WVT	direction_vs_neighbors	suspect	38592	25.40
WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	suspect	34271	22.55
WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	suspect	31680	20.85
T109_30ft_F_Avg	temperature_triad	suspect	2018	1.33
WindDir_Sonic_D1_WVT	stuck_direction	suspect	426	0.28
WindDir_Sonic_SD1_WVT	stuck_direction	suspect	426	0.28
T109_10ft_F_Avg	temperature_triad	suspect	402	0.26
LoadCurrent	load_increase	suspect	288	0.19
SoilTmpF_5cm_Avg	range	suspect	227	0.15
AirTF_Avg	temperature_triad	suspect	45	0.03
SlrW_Avg	solar_above_clearsky	suspect	29	0.02
RV_Pre_Accu_Tot	rain_with_low_rh	suspect	16	0.01
SeaLvlBaro_inHg_Avg	step	suspect	4	0.00
T109_30ft_F_Avg	step	suspect	4	0.00
AirTF_Avg	step	suspect	2	0.00
T109_10ft_F_Avg	step	suspect	2	0.00
SlrW_Avg	range	suspect	1	0.00
SlrW_Avg	solar_at_night	suspect	1	0.00

Largest failure events

start (local)	end (local)	n	variable	test	detail
2026-08-10 00:00	2026-08-21 23:55	3456	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-06-07 00:00	2026-06-14 23:55	2304	WindDir_30ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-07-09 00:00	2026-07-15 23:55	2016	WindDir_30ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-06-25 00:00	2026-06-30 23:55	1728	WindDir_30ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-06-12 13:50	2026-06-18 08:35	1666	WS_Sonic_mph_Avg	sensor_missing	WindSonic4: no readings (100% of a 24-h window blank) while the station is reporting: cable, connector, SDI-12 address/port, or sensor
2026-06-25 20:25	2026-06-30 23:55	1483	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-05-15 00:00	2026-05-19 23:55	1440	WindDir_30ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2025-05-13 00:00	2025-05-16 23:55	1152	WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-08-06 00:00	2026-08-08 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
2026-06-17 00:00	2026-06-19 23:55	864	WindDir_30ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-06-21 00:00	2026-06-23 23:55	864	WindDir_30ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-09-22 00:00	2026-09-24 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
2026-05-22 00:00	2026-05-23 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
2026-09-11 00:00	2026-09-12 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
2026-05-26 00:00	2026-05-27 23:55	576	WindDir_30ft_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	2026-06-04 23:55	576	WindDir_Sonic_D1_WVT	direction_vs_neighbors	daily direction differs from neighbor stations by > 60 deg
2026-07-31 00:00	2026-08-01 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
2025-06-29 00:00	2025-06-30 23:55	576	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-06-18 08:40	2026-06-19 23:55	472	WindDir_Sonic_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-07-25 09:55	2026-07-26 23:55	457	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-01-24 18:10	2026-01-26 07:45	452	WS_Sonic_mph_Max	sonic_error_value	WindSonic4 error value (999.99 m/s) inside the 5-min interval
2026-01-24 18:10	2026-01-26 07:45	452	WS_Sonic_mph_Max	range	outside hard limits [0, 134]
2025-04-29 00:00	2025-04-29 23:55	288	WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2025-05-16 00:00	2025-05-16 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2025-06-21 00:00	2025-06-21 23:55	288	WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2025-06-09 00:00	2025-06-09 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2025-06-13 00:00	2025-06-13 23:55	288	WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2025-05-20 00:00	2025-05-20 23:55	288	WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2025-06-07 00:00	2025-06-07 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2025-07-10 00:00	2025-07-10 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2025-06-18 00:00	2025-06-18 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-09-27 00:00	2026-09-27 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
2026-08-26 00:00	2026-08-26 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
2026-09-20 00:00	2026-09-20 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
2026-07-04 00:00	2026-07-04 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
2026-08-23 00:00	2026-08-23 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
2026-07-22 00:00	2026-07-22 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
2026-07-25 00:00	2026-07-25 23:55	288	WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-05-11 00:00	2026-05-11 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.