Station 40 — Lacassine: QC report
ULM_Stn40 · CR1000X s/n 59194 · table FiveMin · file header program CPU:SO397545_Univ_of_LA_Measonet_Rev09282026.Stn40.wndcor.CR1X
2026-09-28 05:55 to 2026-10-05 05:50 logger clock · generated 2026-10-05 03:50
2026-09-28 05:55 to 2026-10-05 05:50 logger clock · generated 2026-10-05 03:50
2,014unique 5-min records
3,111values flagged failure
69values flagged suspect
0dated corrections applied
Station-level findings
| level | test | finding |
|---|---|---|
| info | soil_dry_limit | 5 cm at the SoilVUE's dry limit (VWC 0, permittivity 2.20): very dry topsoil, not a fault; 2 of 4 nearest LSM stations are also at or near their driest at 5 cm |
| info | lsm_neighbors | LSM neighbors: 24 (30 km), 25 (70 km), 26 (79 km), 33 (84 km) |
| info | file_summary | 5010 rows read (last 7 days), 2014 unique records, 2026-09-28 05:55:00 to 2026-10-05 05:50:00 (logger clock) |
| info | files_combined | record combined from 2 files: ULM_Stn40_FiveMin.dat.backup (2026-09-17 to 2026-09-28, SO397545 Univ of LA Measonet Rev09082026.Stn40.wndcor.CR1X); ULM_Stn40_FiveMin.dat (2026-09-28 to 2026-10-05, SO397545_Univ_of_LA_Measonet_Rev09282026.Stn40.wndcor.CR1X) |
| info | record_reset | RECORD reset 3168 -> 0 (program load or table reset) |
| info | gap | 2 missing records after 2026-09-28 09:55:00 |
Wind direction
By logger-program period (vs airports, after applied corrections)
Measured offset W = 350°. 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 |
|---|---|---|---|---|---|---|---|
| 2026-09-28 10:10 to 2026-10-05 05:45 | 1,964 | – | -19° | -8° | -170° | +20° | not explained |
Proposed corrections (not applied; copy into stations.yaml to use):
| sensor | start | end | add | apply | reason |
|---|---|---|---|---|---|
| sonic | 2026-09-28 10:10 | 2026-10-05 05:45 | 19 | False | empirical (median vs reference); observed -19 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 | 12.80 V | 12.84 V |
| Lowest battery reading | 12.79 V | |
| Charged in / used per day | 5.0 / 2.6 Ah | |
| Reached full charge (float) | 9:30 am | 8:20 am |
| Solar input, sunny-day peak | 21.1 V | ~21 V |
| Overnight draw | 0.112 A | |
| Charger temperature max | 38 °C | |
| Charger minus logger voltage | +0.06 V | wire drop |
| CH200 readings missing | 0.0% |
Flag counts by test
| variable | test | level | records | % of record |
|---|---|---|---|---|
| WS_30ft_mph_Avg | zero_speed_while_windy | failure | 1013 | 50.30 |
| WS_30ft_mph_Max | zero_speed_while_windy | failure | 1013 | 50.30 |
| WindDir_30ft_D1_WVT | zero_speed_while_windy | failure | 1013 | 50.30 |
| SoilTmpF_100cm_Avg | range | failure | 8 | 0.40 |
| SoilTmpF_10cm_Avg | range | failure | 8 | 0.40 |
| SoilTmpF_20cm_Avg | range | failure | 8 | 0.40 |
| SoilTmpF_30cm_Avg | range | failure | 8 | 0.40 |
| SoilTmpF_40cm_Avg | range | failure | 8 | 0.40 |
| SoilTmpF_50cm_Avg | range | failure | 8 | 0.40 |
| SoilTmpF_5cm_Avg | range | failure | 8 | 0.40 |
| SoilTmpF_60cm_Avg | range | failure | 8 | 0.40 |
| SoilTmpF_75cm_Avg | range | failure | 8 | 0.40 |
| T109_10ft_F_Avg | temperature_triad | suspect | 43 | 2.14 |
| T109_30ft_F_Avg | temperature_triad | suspect | 24 | 1.19 |
| T109_10ft_F_Avg | step | suspect | 2 | 0.10 |
Largest failure events
| start (local) | end (local) | n | variable | test | detail |
|---|---|---|---|---|---|
| 2026-10-03 06:05 | 2026-10-03 20:10 | 170 | WindDir_30ft_D1_WVT | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-09-30 08:35 | 2026-09-30 20:05 | 139 | WindDir_30ft_D1_WVT | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-09-29 09:40 | 2026-09-29 17:10 | 91 | WindDir_30ft_D1_WVT | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-10-02 12:55 | 2026-10-02 19:40 | 82 | WindDir_30ft_D1_WVT | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-10-01 01:40 | 2026-10-01 07:50 | 75 | WS_30ft_mph_Avg | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-10-01 12:45 | 2026-10-01 18:50 | 74 | WS_30ft_mph_Avg | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-10-04 12:25 | 2026-10-04 17:35 | 63 | WS_30ft_mph_Avg | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-10-02 08:40 | 2026-10-02 12:45 | 50 | WS_30ft_mph_Avg | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-09-30 20:25 | 2026-10-01 00:00 | 44 | WS_30ft_mph_Avg | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-10-04 08:40 | 2026-10-04 12:10 | 43 | WS_30ft_mph_Avg | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-10-04 22:40 | 2026-10-05 01:50 | 39 | WindDir_30ft_D1_WVT | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-10-01 10:00 | 2026-10-01 12:15 | 28 | WindDir_30ft_D1_WVT | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-10-04 06:30 | 2026-10-04 08:30 | 25 | WS_30ft_mph_Max | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-10-01 08:00 | 2026-10-01 09:50 | 23 | WindDir_30ft_D1_WVT | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-09-28 18:45 | 2026-09-28 20:25 | 21 | WS_30ft_mph_Max | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-10-04 20:45 | 2026-10-04 22:10 | 18 | WindDir_30ft_D1_WVT | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-09-30 00:55 | 2026-09-30 02:05 | 15 | WS_30ft_mph_Avg | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-10-01 19:10 | 2026-10-01 20:10 | 13 | WS_30ft_mph_Max | zero_speed_while_windy | reads 0 for >= 12 records while another anemometer >= 5.0 mph |
| 2026-09-28 10:20 | 2026-09-28 10:20 | 1 | SoilTmpF_50cm_Avg | range | outside hard limits [10, 125] |
| 2026-09-28 10:10 | 2026-09-28 10:10 | 1 | SoilTmpF_20cm_Avg | range | outside hard limits [10, 125] |
| 2026-09-30 11:50 | 2026-09-30 11:50 | 1 | SoilTmpF_40cm_Avg | range | outside hard limits [10, 125] |
| 2026-09-30 11:35 | 2026-09-30 11:35 | 1 | SoilTmpF_75cm_Avg | range | outside hard limits [10, 125] |
| 2026-09-28 10:50 | 2026-09-28 10:50 | 1 | SoilTmpF_50cm_Avg | range | outside hard limits [10, 125] |
| 2026-09-28 10:35 | 2026-09-28 10:35 | 1 | SoilTmpF_100cm_Avg | range | outside hard limits [10, 125] |
| 2026-09-30 12:15 | 2026-09-30 12:15 | 1 | SoilTmpF_5cm_Avg | range | outside hard limits [10, 125] |
| 2026-09-30 12:05 | 2026-09-30 12:05 | 1 | SoilTmpF_10cm_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.