Station 30 — Chalmette: QC report

ULM_Stn30 · CR1000X s/n 59191 · table FiveMin · file header program CPU:SO397545_Univ_of_LA_Measonet_Rev09282026.Stn30.wndcor.CR1X
2026-02-21 11:05 to 2026-10-04 05:15 logger clock · generated 2026-10-04 03:19

64,717unique 5-min records

120,977values flagged failure

740,447values flagged suspect

0dated corrections applied

Station-level findings

level	test	finding
failure	direction_vs_other_sensors	30ft-10ft: median daily difference +71 deg over 218 days
failure	direction_vs_other_sensors	10ft-sonic: median daily difference -77 deg over 218 days
suspect	soil_depth_duplicate	60 cm duplicates 50 cm on 211 days
suspect	soil_depth_duplicate	75 cm duplicates 60 cm on 216 days
suspect	soil_depth_duplicate	100 cm duplicates 75 cm on 213 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 NEW, MSY, ASD = +10 deg (IQR +6 to +16, 106 days)
info	solar_timing	overall solar timing offset +0 min over 55 clear days (positive = later than expected)
info	lsm_neighbors	LSM neighbors: 29 (22 km), 41 (82 km)
info	direction_vs_lsm_neighbors	10ft: median offset vs trusted LSM neighbors (29) = +9 deg over 96 days
info	file_summary	64717 rows read, 64717 unique records, 2026-02-21 11:05:00 to 2026-10-04 05:15:00 (logger clock)
info	files_combined	record combined from 2 files: ULM_Stn30_FiveMin.dat.backup (2026-02-21 to 2026-09-28, SO397545 Univ of LA Measonet Rev02192026.Stn30.wndcor.CR1X); ULM_Stn30_FiveMin.dat (2026-09-28 to 2026-10-04, SO397545_Univ_of_LA_Measonet_Rev09282026.Stn30.wndcor.CR1X)
info	record_reset	RECORD reset 534 -> 0 (program load or table reset)
info	record_reset	RECORD reset 62506 -> 0 (program load or table reset)
info	gap	1 missing records after 2026-02-23 07:35:00
info	gap	1 missing records after 2026-09-28 09:35:00

Wind direction

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

Measured offset W = 318°. 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
2026-02-21 11:05 to 2026-02-23 07:35	535	+40°	+45°	–	-138°	+84°	not explained
2026-02-23 07:45 to 2026-09-28 09:35	62,507	+81°	+86°	+10°	-138°	+84°	sign-flipped code
2026-09-28 09:45 to 2026-10-04 05:05	1,673	-0°	+4°	–	-138°	+84°	correct / aligned

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

sensor	start	end	add	apply	reason
30ft	2026-02-21 11:05	2026-02-23 07:35	-40	False	empirical (median vs reference); observed +40 deg (via 10-ft)
sonic	2026-02-21 11:05	2026-02-23 07:35	-45	False	empirical (median vs reference); observed +45 deg (via 10-ft)
30ft	2026-02-23 07:45	2026-09-28 09:35	-84	False	model: sign-flipped code with W=318; observed +81 deg (airports)
sonic	2026-02-23 07:45	2026-09-28 09:35	-84	False	model: sign-flipped code with W=318; observed +86 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	12.85 V	12.83 V
Lowest battery reading	12.83 V
Charged in / used per day	4.9 / 3.2 Ah
Reached full charge (float)	8:05 am	8:20 am
Solar input, sunny-day peak	20.9 V	~21 V
Overnight draw	0.130 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_30ft_D1_WVT	direction_vs_other_sensors	failure	60467	93.43
WindDir_Sonic_D1_WVT	direction_vs_other_sensors	failure	60467	93.43
WS_Sonic_mph_Avg	sonic_error_value	failure	7	0.01
WS_Sonic_mph_Max	range	failure	7	0.01
WS_Sonic_mph_Max	sonic_error_value	failure	7	0.01
WindDir_Sonic_D1_WVT	sonic_error_value	failure	7	0.01
WindDir_Sonic_SD1_WVT	sonic_error_value	failure	7	0.01
WS_Sonic_mph_Avg	range	failure	6	0.01
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
T109_30ft_F_Avg	step	failure	2	0.00
AbsBaro_inHg_Avg	range	failure	1	0.00
SeaLvlBaro_inHg_Avg	range	failure	1	0.00
BulkEC_75cm_Avg	soil_depth_duplicate	suspect	62059	95.89
Ka_75cm_Avg	soil_depth_duplicate	suspect	62059	95.89
SoilTmpF_75cm_Avg	soil_depth_duplicate	suspect	62059	95.89
VWC_75cm_Avg	soil_depth_duplicate	suspect	62059	95.89
BulkEC_100cm_Avg	soil_depth_duplicate	suspect	61207	94.58
Ka_100cm_Avg	soil_depth_duplicate	suspect	61207	94.58
SoilTmpF_100cm_Avg	soil_depth_duplicate	suspect	61207	94.58
VWC_100cm_Avg	soil_depth_duplicate	suspect	61207	94.58
WindDir_Sonic_D1_WVT	direction_vs_other_sensors	suspect	61196	94.56
WindDir_30ft_D1_WVT	direction_vs_other_sensors	suspect	60910	94.12
BulkEC_60cm_Avg	soil_depth_duplicate	suspect	60620	93.67
Ka_60cm_Avg	soil_depth_duplicate	suspect	60620	93.67
SoilTmpF_60cm_Avg	soil_depth_duplicate	suspect	60620	93.67
VWC_60cm_Avg	soil_depth_duplicate	suspect	60620	93.67
VWC_5cm_Avg	range	suspect	1568	2.42
VWC_10cm_Avg	range	suspect	1393	2.15
WindDir_10ft_D1_WVT	direction_vs_lsm_neighbors	suspect	288	0.45
WindDir_30ft_D1_WVT	direction_vs_lsm_neighbors	suspect	288	0.45
WindDir_30ft_D1_WVT	direction_vs_neighbors	suspect	288	0.45
WindDir_Sonic_D1_WVT	direction_vs_lsm_neighbors	suspect	288	0.45
WindDir_Sonic_D1_WVT	direction_vs_neighbors	suspect	288	0.45
T109_10ft_F_Avg	temperature_triad	suspect	163	0.25
T109_30ft_F_Avg	temperature_triad	suspect	150	0.23
SoilTmpF_5cm_Avg	range	suspect	78	0.12
AirTF_Avg	temperature_triad	suspect	60	0.09
SlrW_Avg	solar_above_clearsky	suspect	17	0.03
SoilTmpF_5cm_Avg	step	suspect	12	0.02
RH_Avg	step	suspect	2	0.00
T109_10ft_F_Avg	step	suspect	2	0.00
T109_30ft_F_Avg	step	suspect	2	0.00
WS_Sonic_mph_Avg	range	suspect	1	0.00

Largest failure events

start (local)	end (local)	n	variable	test	detail
2026-02-23 00:00	2026-05-30 23:55	27923	WindDir_30ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-07-17 00:00	2026-09-12 23:55	16704	WindDir_30ft_D1_WVT	direction_vs_other_sensors	daily mean direction differs from the 10ft sensor (confirmed against airports) by > 45 deg
2026-06-01 00:00	2026-07-08 23:55	10944	WindDir_Sonic_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	2026-09-25 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
2026-07-10 00:00	2026-07-14 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
2026-09-14 00:00	2026-09-18 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
2026-09-27 00:00	2026-09-27 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
2026-03-22 22:00	2026-03-22 22:30	7	WindDir_Sonic_SD1_WVT	sonic_error_value	WindSonic4 error value (999.99 m/s) inside the 5-min interval
2026-03-22 22:00	2026-03-22 22:30	7	WS_Sonic_mph_Max	range	outside hard limits [0, 134]
2026-03-22 22:05	2026-03-22 22:30	6	WS_Sonic_mph_Avg	range	outside hard limits [0, 134]
2026-02-21 11:05	2026-02-21 11:10	2	T109_30ft_F_Avg	step	5-min change > 20
2026-02-23 07:45	2026-02-23 07:45	1	SeaLvlBaro_inHg_Avg	range	outside hard limits [27.5, 31.5]
2026-09-28 09:45	2026-09-28 09:45	1	SoilTmpF_100cm_Avg	range	outside hard limits [10, 125]

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.