DQRID : D970603.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/01/1997000004/30/19972359Does not affect quality
more
Subject:
Overview of Automated QA - April 1997
DataStreams:sgp15okmX1.a1, sgp05okmX1.a1
Description:
Following is an overview of the April 1997 Oklahoma Mesonet Automated 
Quality Assurance Data Files

From Mark Shafer, Oklahoma Mesonet

 The April report  from the QA manager is
attached here.  The only thing I would add is that WEBB RELH and
SALL TAIR and RELH appeared to have some problems not documented. 
The indiviudal data have flags which reflect problems, but I would
be cautious with RELH data for these two sites.

_________________________________________________________________________

       OKLAHOMA MESONETWORK QUALITY ASSURANCE REPORT
       for the month of April, 1997

       Based upon observations taken at 1800 UTC each day

       Prepared by Jeff Basara     (jbasara@ou.edu)

================================================================================

Notes:

As the weather warms up, it seems the Mesonet has also.  The technicians have
had plenty of things to keep them busy, and many trouble tickets were issued
and resolved in April.  With the onset of the spring rains, more rain guages 
have shown up plugged or stopped.  This has proven to be the most problematic
instrument during the month of April, but even so, the guages have been working
rather well so far.

There was only one incident of vandalism this month, and it was at WEBB again.
Someone decided they needed a 10m wind monitor to add to their collection, so
they came back and grabbed one.

One note of weather related interest involves the monthly summary of wind
vectors.  With a number of surface low pressure systems slowly marching through
Texas in April, the 1800 UTC wind vectors were almost due easterly is southern
Oklahoma for the month.  Rather interesting!

Well, here is the rap sheet...


================================================================================

TAIR (Air Temperature at 1.5 meters):
        Current t-tkts:    None.
        Added:             None.
        Resolved:          #1217 SALL Vandalism Replacement.     

TDEW/RELH (RH is measured at 1.5 meters):
        Current t-tkts:    #1292 HUGO Aspirated intercomparison revealed RH out
                                      of spec ~3W.R.T. test probe. 
        Added:             None.
        Resolved:          #1251 PRES Put in nipple top shield taken from APAC
                           #1245 BBOW RH +7-8W.R.T. test probe.
                           #1196 IDAB Indeed RH was dead / not cabling problem 
                           #1257 ERIC Probe end covered in spider webs

WDIR (Wind Direction at 10 meters):
        Current t-tkts:    None.
        Added:             None.
        Resolved:          #1282 WEBB Made mistake in log - issued new t-tkt 
                           #1283 WEBB Replaced stolen wind monitor.

WSPD (Wind Speed at 10 meters):
        Current t-tkts:    None.
        Added:             None.
        Resolved:          #1285 WEBB Replaced stolen wind monitor

PRES/PALT (Sea level Pressure):
        Current t-tkts:    None.
        Added:             None.
        Resolved:          #1223 SALL Vandalism Replacement.

SRAD (Incident Solar Radiation):
        Current t-tkts:    None.
        Added:             None.
        Resolved:          #1222 SALL Vandalism Replacemnt.
                           #1294 WEBB Cleaned off brown coating

RAIN:
        Current t-tkts:    #1116 BOWL Drip test yielded 41 tips (50 typical).
                           #1284 BOIS There is a high probability this gauge
                                      is plugged/not functioning.
                           #1290 RETR High probability guage is plugged/not
                                      functioning.
        Added:             None.
        Resolved:          #1224 SALL Vandalism Replacement.
                           #1259 COPA No problem found - drip test = 51 tips
                           #1248 JAYX Found plug in funnel - put in new gauge
                           #1198 MEDF Drip test showed gauge o.k.
                           #1197 PUTN Bucket seams broken, leaked water
                           #1272 HUGO 500ml of water dripped through w/no tips
                           #1257 BESS Bucket not tipping due to spider web.
                           #1276 PUTN Replaced gauge removed on earlier trip. 

TA9M (Air Temperature at 9 meters):
        Current t-tkts:    None.
        Added:             None.
        Resolved:          #1126 HUGO Side by side field test revealed ~2 
                                      degree cool bias - replaced sensor.

WS2M (Wind Run at 2 meters): 
        Current t-tkts:    None.
        Added:             None.
        Resolved:          #1227 MANG No output from sensor to datalogger
                           #1264 PRES Replaced Vandalized sensor. 
                           #1273 BEAV Replaced wind monitor bearings.
                           #1266 SKIA Broken wire caused ground to disconnect

TS10 (Soil temperature at 10 cm under native sod):
        Current t-tkts:   #1193 STUA QA suggests a ~3 degree warm bias.
        Added:            None.
        Resolved:         #1218 SALL Vandalism Replacement.      

TB10 (Soil temperature at 10 cm under bare soil):
        Current t-tkts:   #1200 TALI Sensor is nearly 10 degrees warmer than
                                     it's neighboring sites.
                          #1260 SALL Sensor not reporting for extended periods,
                                     then functioning normal.
        Added:            None.
        Resolved:         #1219 SALL Vandalism Replacement.
                          #1269 MTHE Installed probe marker.

TS05 (Soil temperature at 5 cm under native sod):
        Current t-tkts:   #1089 MADI QA suggests a ~5-6 degree warm bias
                          #1190 MADI QA suggests a ~3 degree warm bias
                          #1191 CALV QA suggests a ~3 degree warm bias
                          #1192 STUA QA suggests a ~3 degree warm bias
                          #1286 FORA Normal operation with intermitent bad data
                          #1206 LANE Sensor Reading ~10 degrees warmer than
                                     neighboring sites.
        Added:            None.
        Resolved:         None.

TB05 (Soil temperature at 5 cm under bare soil):
        Current t-tkts:   #1076 WALT Began drifting, then failed range test.
                          #1169 KING QA suggests a ~4 degree warm bias.
                          #1256 SALL Sensor failing range test.
                          #1261 PAUL Extended periods of bad data followed by
                                     normal operation.
        Added:            None.
        Resolved:         #1220 SALL Vandalism Replacement.
                          #1127 OKEM Dug up sensor - sensor ok - reinstalled

TS30 (Soil temperature at 30 cm under native sod):
        Current t-tkts:   None.
        Added:            None.
        Resolved:         None.

-------------------------------------------------------------------------------
                                ARS QA REPORT
-------------------------------------------------------------------------------

TAIR (Air Temperature at 1.5 meters):
        Current t-tkts:  None.
        Added:           None.
        Resolved:        None.

TDEW/RELH (RH is measured at 1.5 meters):
        Current t-tkts:  None.
        Added:           None.
        Resolved:        None.

SRAD (Incident Solar Radiation):
        Current t-tkts:  #1132 A182 QA suggests sensor ~30igh.
        Added:           #1296 A125 QA suggests sensor is reading ~50 
                                    units too low.
        Resolved:        None.
                                                                            
RAIN:
        Current t-tkts:  None.
        Added:           None.
        Resolved:        None.

TS05 (Soil temperature at 5 cm under native soil):
        Current t-tkts:  None.
        Added:           #1295 A160 QA suggests a ~6 degree warm bias.
        Resolved:        #1214 A147 Wires tightened on maintainance visit.

TS10 (Soil temperature at 10 cm under native sod):
        Current t-tkts:  None.
        Added:           None.
        Resolved:        None.

TS15 (Soil temperature at 15 cm under native soil):
        Current t-tkts:  None.
        Added:           None.
        Resolved:        #1136 A182 Confirmed too warm - replaced probe
                         #1267 A182 T-tkt covered by #1136. 
                                                                           
TS30 (Soil temperature at 30 cm under native sod):
        Current t-tkts:  None.
        Added:           None.
        Resolved:        None.





Jeff Basara
May 5, 1997
Suggestions: 
Users of these data should also obtain the detailed quality assurance files.
Measurements:sgp05okmX1.a1:
  • alt
  • prec_amt
  • wvec_10m
  • time_offset
  • pres
  • wspd_sigma
  • wspd_10m
  • wdir_10m
  • tdry_1_5m
  • base_time
  • lon
  • wspd_max
  • wspd_2m
  • rh
  • tdry_9m
  • srad
  • wdir_sigma
  • lat
more
sgp15okmX1.a1:
  • leaf_ind
  • alt
  • tsoil5
  • tsoil10
  • tbare5
  • vbat
  • base_time
  • lon
  • tbare10
  • tbare30
  • time_offset
  • lat
more

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