Station 33 — Pitkin: QC report

ULM_Stn33 · CR1000X s/n 59184 · table FiveMin · file header program CPU:SO397545_Univ_of_LA_Measonet_Rev09282026.Stn33.wndcor.CR1X
2026-04-17 11:15 to 2026-10-04 05:15 logger clock · generated 2026-10-04 03:20

48,887unique 5-min records

51,505values flagged failure

491,551values flagged suspect

0dated corrections applied

Station-level findings

level	test	finding
failure	direction_vs_other_sensors	30ft-10ft: median daily difference -131 deg over 105 days
failure	direction_vs_other_sensors	10ft-sonic: median daily difference +131 deg over 105 days
failure	neighbor_direction	30ft: median offset vs POE, DRI, AEX = -51 deg (IQR -55 to -49, 59 days)
failure	neighbor_direction	sonic: median offset vs POE, DRI, AEX = -52 deg (IQR -55 to -49, 67 days)
failure	direction_vs_lsm_neighbors	30ft: median offset vs trusted LSM neighbors (5, 34, 26) = -62 deg over 50 days
failure	direction_vs_lsm_neighbors	sonic: median offset vs trusted LSM neighbors (5, 34, 26) = -61 deg over 52 days
suspect	soil_depth_duplicate	60 cm duplicates 50 cm on 135 days
suspect	soil_depth_duplicate	75 cm duplicates 60 cm on 141 days
suspect	soil_depth_duplicate	100 cm duplicates 75 cm on 135 days
info	solar_timing	overall solar timing offset +3 min over 20 clear days (positive = later than expected)
info	lsm_neighbors	LSM neighbors: 35 (39 km), 5 (65 km), 34 (72 km), 26 (78 km)
info	vs_lsm_neighbors	AirTF_Avg: median bias vs LSM neighbors -0.8 F over 169 days
info	vs_lsm_neighbors	RH_Avg: median bias vs LSM neighbors +1.0 % over 169 days
info	vs_lsm_neighbors	SeaLvlBaro_inHg_Avg: median bias vs LSM neighbors +0.005 inHg over 169 days
info	vs_lsm_neighbors	rain total 28.3 in vs LSM neighbor median 21.3 in over shared days (ratio 1.33); missed-rain days 0, rain-only-here days 0
info	vs_lsm_neighbors	SlrW_Avg: daily solar total 0.96 x LSM neighbor median over 167 days
info	file_summary	48887 rows read, 48887 unique records, 2026-04-17 11:15:00 to 2026-10-04 05:15:00 (logger clock)
info	files_combined	record combined from 2 files: ULM_Stn33_FiveMin.dat.backup (2026-04-17 to 2026-09-28, SO397545 Univ of LA Measonet Rev03262026.Stn33.wndcor.CR1X); ULM_Stn33_FiveMin.dat (2026-09-28 to 2026-10-04, SO397545_Univ_of_LA_Measonet_Rev09282026.Stn33.wndcor.CR1X)
info	record_reset	RECORD reset 19 -> 0 (program load or table reset)
info	record_reset	RECORD reset 47193 -> 0 (program load or table reset)
info	gap	1 missing records after 2026-04-17 12:50:00
info	gap	1 missing records after 2026-09-28 09:45:00

Wind direction

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

Measured offset W = 27°. 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
2026-04-17 13:00 to 2026-09-28 09:45	47,194	-51°	-52°	+82°	+153°	-54°	sign-flipped code
2026-09-28 09:55 to 2026-10-04 05:05	1,671	–	–	–	+153°	-54°	not explained

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

sensor	start	end	add	apply	reason
30ft	2026-04-17 13:00	2026-09-28 09:45	54	False	model: sign-flipped code with W=27; observed -51 deg (airports)
sonic	2026-04-17 13:00	2026-09-28 09:45	54	False	model: sign-flipped code with W=27; observed -52 deg (airports)
10ft	2026-04-17 13:00	2026-09-28 09:45	-82	False	empirical (median vs reference); observed +82 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	12.80 V
Charged in / used per day	4.7 / 2.5 Ah
Reached full charge (float)	8:25 am	8:20 am
Solar input, sunny-day peak	21.1 V	~21 V
Overnight draw	0.114 A
Charger temperature max	39 °C
Charger minus logger voltage	+0.07 V	wire drop
CH200 readings missing	0.0%
Battery vs network, last 30 days	+0.01 V per 30 days	falling = weakening

Flag counts by test

variable	test	level	records	% of record
WindDir_10ft_D1_WVT	direction_vs_other_sensors	failure	29880	61.12
WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	failure	9216	18.85
WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	failure	8928	18.26
WindDir_Sonic_D1_WVT	direction_vs_neighbors	failure	2016	4.12
WindDir_30ft_D1_WVT	direction_vs_neighbors	failure	1440	2.95
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
SeaLvlBaro_inHg_Avg	range	failure	1	0.00
T109_30ft_F_Avg	range	failure	1	0.00
WS_Sonic_mph_Avg	sonic_error_value	failure	1	0.00
WS_Sonic_mph_Max	range	failure	1	0.00
WS_Sonic_mph_Max	sonic_error_value	failure	1	0.00
WindDir_Sonic_D1_WVT	sonic_error_value	failure	1	0.00
WindDir_Sonic_SD1_WVT	sonic_error_value	failure	1	0.00
BulkEC_75cm_Avg	soil_depth_duplicate	suspect	40608	83.07
Ka_75cm_Avg	soil_depth_duplicate	suspect	40608	83.07
SoilTmpF_75cm_Avg	soil_depth_duplicate	suspect	40608	83.07
VWC_75cm_Avg	soil_depth_duplicate	suspect	40608	83.07
BulkEC_100cm_Avg	soil_depth_duplicate	suspect	38880	79.53
BulkEC_60cm_Avg	soil_depth_duplicate	suspect	38880	79.53
Ka_100cm_Avg	soil_depth_duplicate	suspect	38880	79.53
Ka_60cm_Avg	soil_depth_duplicate	suspect	38880	79.53
SoilTmpF_100cm_Avg	soil_depth_duplicate	suspect	38880	79.53
SoilTmpF_60cm_Avg	soil_depth_duplicate	suspect	38880	79.53
VWC_100cm_Avg	soil_depth_duplicate	suspect	38880	79.53
VWC_60cm_Avg	soil_depth_duplicate	suspect	38880	79.53
WindDir_10ft_D1_WVT	direction_vs_other_sensors	suspect	29880	61.12
WindDir_Sonic_D1_WVT	direction_vs_neighbors	suspect	18432	37.70
WindDir_30ft_D1_WVT	direction_vs_neighbors	suspect	16416	33.58
WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	suspect	14400	29.46
WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	suspect	14112	28.87
T109_10ft_F_Avg	temperature_triad	suspect	1863	3.81
VWC_30cm_Avg	range	suspect	1134	2.32
T109_30ft_F_Avg	temperature_triad	suspect	650	1.33
AirTF_Avg	temperature_triad	suspect	26	0.05
SeaLvlBaro_inHg_Avg	step	suspect	2	0.00
SlrW_Avg	solar_above_clearsky	suspect	2	0.00
T109_30ft_F_Avg	step	suspect	2	0.00

Largest failure events

start (local)	end (local)	n	variable	test	detail
2026-06-17 00:00	2026-06-29 23:55	3744	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-04-22 00:00	2026-05-02 23:55	3168	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-08-16 00:00	2026-08-22 23:55	2016	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-05-04 00:00	2026-05-09 23:55	1728	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-07-20 00:00	2026-07-25 23:55	1728	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-07-27 00:00	2026-08-01 23:55	1728	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-07-05 00:00	2026-07-10 23:55	1728	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-09-29 00:00	2026-10-04 05:15	1504	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-04-28 00:00	2026-05-02 23:55	1440	WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-05-15 00:00	2026-05-19 23:55	1440	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-06-07 00:00	2026-06-11 23:55	1440	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-06-26 00:00	2026-06-29 23:55	1152	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-05-16 00:00	2026-05-19 23:55	1152	WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-09-22 00:00	2026-09-25 23:55	1152	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-04-17 11:15	2026-04-20 23:55	1016	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-04-22 00:00	2026-04-24 23:55	864	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-09-16 00:00	2026-09-18 23:55	864	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-06-03 00:00	2026-06-05 23:55	864	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-08-12 00:00	2026-08-14 23:55	864	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-05-27 00:00	2026-05-29 23:55	864	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-06-21 00:00	2026-06-22 23:55	576	WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-06-10 00:00	2026-06-11 23:55	576	WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-07-22 00:00	2026-07-23 23:55	576	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-05-22 00:00	2026-05-23 23:55	576	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-05-01 00:00	2026-05-02 23:55	576	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-06-07 00:00	2026-06-08 23:55	576	WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-07-31 00:00	2026-08-01 23:55	576	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-08-31 00:00	2026-09-01 23:55	576	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-09-12 00:00	2026-09-13 23:55	576	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors 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
2026-06-19 00:00	2026-06-19 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-07-14 00:00	2026-07-14 23:55	288	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-07-21 00:00	2026-07-21 23:55	288	WindDir_30ft_D1_WVT	direction_vs_neighbors	daily direction differs from neighbor stations by > 60 deg
2026-06-29 00:00	2026-06-29 23:55	288	WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-09-25 00:00	2026-09-25 23:55	288	WindDir_30ft_D1_WVT	direction_vs_neighbors	daily direction differs from neighbor stations by > 60 deg
2026-04-26 00:00	2026-04-26 23:55	288	WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-05-22 00:00	2026-05-22 23:55	288	WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	daily direction differs from trusted LSM neighbors by > 60 deg
2026-05-13 00:00	2026-05-13 23:55	288	WindDir_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors by > 45 deg
2026-05-11 00:00	2026-05-11 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_10ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from both other sensors 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.