Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
04/01/1998 | 0000 | 04/30/1998 | 2359 | Does not affect quality |
Subject: | Overview of Automated QA - April 1998 |
DataStreams: | sgp05okmX1.00, sgp15okmX1.00, sgp15okmX1.a1, sgp05okmX1.a1 |
Description: | Below is an overview from Mark Shafer and Chris Fiebrich, the Mesonet QA manager of the automated quality assurance results for the April 1998 Oklahoma Mesonet data. 1. RETR RELH - April 6 flags were from a wet sensor; the flags are correct and there is no need for continuning concern after the event (from 2105-2220). 2. BBOW RELH - April 12, 9 suspect flags. Data looked ok; we suspect the inversion established at that site (lower elevation) earlier than surrounding sites. 3. EUFA TS10, TB10 - several spikes in the data on the 13th (1730-1800 UTC) and 14th (1845-2000); also affected TS05, TB05, TS30. Do not use data for these time period, but it otherwise looked ok (it was examined by a technician who could find no problems with the sensor). 4. BRIS TS10 - flagged as warning on the 14th, but should be flagged for the 13th as well (see QA manager's report below). 5. WEST BATV - April 14, voltage appeared a bit high, which may influence other instruments. 6. WYNO SRAD - started showing problems in spatial plots on the 14th; flagged as warning on the 26th; problem resolved May 5. 7. ARNE & CHEY RELH - April 15 - flagged as low, but ok - dryline affected those sites from 0155 to 0640 UTC. 8. MAYR RELH - April 20, similar effect; MAYR is at the edge of the network and the data showed an internal consistency, can ignore flags. 9. MARE RELH - April 23, data internally consistent; we suspect high RELH readings at STIL and it's very close proximity to MARE affected the spatial QA routine. 10. MINC TAIR, RELH - April 23 - did not experience an inversion like surrounding sites; instead stayed warm and dry, and caused spatial QA flags. Ignore the flags. 11. HINT WSPD, WVEC - April 27 - wind speeds higher than nearby sites, but precip at the time, suggesting perhaps thunderstorm outflow. Disregard flags. > OKLAHOMA MESONETWORK/ARS QUALITY ASSURANCE REPORT > for the month of April, 1998 > > Based upon observations taken at 1800 UTC each day > > Prepared by Chris Fiebrich (chris@mesnet.mesonet.ou.edu) > > ================================================================================ > > The monthly averaged fields for April were quite smooth. Temperatures > across the state are on the rise in a big way. Average afternoon temperatures > were some 8 C warmer for April than they were for March. The heaviest > rainfall totals for April were observed in a swath stretching from just > east of Norman northward to Osage County. These areas received 5-6 inches > for the month. This contrasts with the southwest part of the state where > most stations received less than 0.50 inches. > > The monthly QA detected a number of possible biases in the soil sensors in > both the ARS and MESO networks. Those sensors will be investigated in the > coming weeks. > > ================================================================================ > > TAIR Current: #1780 MAYR Reporting values out of range > Added: None > Resolved: None > > RELH Current: #1669 MADI RH reporting -7999 on multiple occassions > #1731 CLAY RH reports of -7999 on numerous occassions > Added: #1810 KING Monthly QA shows 1.5 - 2.0 C TDEW warm bias > Resolved: #1732 WYNO Sensor replaced due to -7999 reports > #1771 TULL Sensor replaced due to vandalism > #1754 NINN Sensor field-tested to be ok > > WDIR Current: None > Added: None > Resolved: #1770 TULL Sensor replaced due to vandalism > > WSPD Current: None > Added: None > Resolved: #1769 TULL Sensor replaced due to vandalism > > PRES Current: #1751 ALTU Sensor reamins stuck at various readings > Added: #1809 SEIL Monthly QA shows possible 0.6 - 1.0 low bias > Resolved: #1772 TULL Sensor replaced due to vandalism > > SRAD Current: #1761 TULL Waiting for replacement after vandalism > #1765 OKMU Failed comparison test by >10% > #1781 MAYR Reporting below 0 during the night > #1802 WYNO Reporting 0.0 most of the day > Added: None > Resolved: None > > RAIN Current: #1799 COPA Gauge reporting 0.0 during heavy rain event > Added: None > Resolved: #1763 TULL Sensor replaced due to vandalism > #1801 CLAR Under-reporting caused by debris in funnel > #1796 CHIC Over-reporting corrected with new gauge > #1791 NINN Distance between switch and magnet causing > no tip counts, replaced gauge > > TA9M Current: None > Added: None > Resolved: #1760 TULL Sensor replaced due to vandalism > > WS2M Current: None > Added: None > Resolved: None > > TS10 Current: #1777 MEDI Monthly QA shows 2-3 C warm bias > #1790 BRIS Reporting 4-8 C warmer than surrounding > sites > Added: None > Resolved: #1755 TULL Sensor replaced due to vandalism > > TB10 Current: #1779 WILB Monthly QA indicates 4 C cool bias > #1782 MAYR Unnatural steps occurring in data > Added: None > Resolved: #1756 TULL Sensor replaced due to vandalism > > TS05 Current: None > Added: #1811 BRIS Monthly QA shows ~5 C warm bias > Resolved: None > > TB05 Current: None > Added: #1808 WOOD Monthly QA shows possible 4 C warm bias > Resolved: None > > TS30 Current: #1704 EUFA Sensor reporting -9999 due to lightning > Added: None > Resolved: None > > ------------------------------------------------------------------------------- > ARS QA REPORT > ------------------------------------------------------------------------------- > > TAIR Current: None > Added: None > Resolved: None > > RELH Current: None > Added: None > Resolved: #1803 A111 Sensor reporting 0%, replaced. > > SRAD Current: None > Added: None > Resolved: #1797 A121 Wire chewed and broken near stand, replaced > > RAIN Current: None > Added: None > Resolved: #1742 A122 CR10T and gauge replaced to fix spurrious > reports > #1800 A132 Spider web clogging gauge removed > > TS05 Current: None > Added: #1816 A148 Monthly QA shows possible 2-4 C warm bias > #1817 A157 Monthly QA shows possible 2 C cool bias > Resolved: #1785 A131 Soil type found to be cause of spatial QA > anomally > > TS10 Current: None > Added: #1815 A166 Monthly QA shows possible 2-3 c cool bias > Resolved: None > > TS15 Current: None > Added: None > Resolved: None > > TS30 Current: None > Added: None > Resolved: #1778 A156 Field test confirmed QA warm bias, replaced > > > ============================================================================== > > LEGEND > TAIR Air Temperature measured at 1.5 meters > RELH Relative Humidity measured at 1.5 meters > WDIR Wind Direction measured at 10 meters > WSPD Wind Speed measured at 10 meters > PRES Pressure > SRAD Incident Solar Radiation > RAIN Rainfall > TA9M Air Temperature measured at 9 meters > WS2M Wind Speed measured at 2 meters > TS10 Soil Temperature measured at 10 cm under native sod > TB10 Soil Temperature measured at 10 cm under bare soil > TS05 Soil Temperature measured at 5 cm under native sod > TB05 Soil Temperature measured at 5 cm under bare soil > TS15 Soil Temperature measured at 15 cm under native sod > TS30 Soil Temperature measured at 30 cm under native sod > > ============================================================================== > Chris Fiebrich > May 5, 1998 |
Suggestions: | Users of these data should obtain the detailed quality assurance information from ARM. |
Measurements: | sgp05okmX1.a1: more
sgp05okmX1.00: more sgp15okmX1.a1: more sgp15okmX1.00: more |