Ambient Equilibration
Cabin temperature: 25C
Sensor type: RS80
Ambient pressure: 298mb
Ambient temperature: -42C
Ambient RH: 50%
Temperature equilibration accuracy: 0.1C
RH equilibration accuracy: 5.0%
Temperature equilibration at time: 25.0s, RS80 T sensor time constants: 6.5
RH equilibration at time: 50.6s, RS80 RH sensor time constants: 4.3
Pressure: same equilibration time used as for temperature
Wind equilibration: 10.0s
Description
D20180131_235729_P.4 152235114 18013118307 WXWXC AR03, 18013118307 WXWXC AR03 AFRC C-130J, ---
Data type: AVAPS SOUNDING DATA, Channel 4
Sonde model: RS904
Thermo sensor: RS904
Fast Fall Test
Number of points with excessive fall rate: 0
Percentage of points with excessive fall rate: 0
Sounding diagnosed as a fast fall: No
File Processing
Data type: AVAPS SOUNDING DATA, Channel 4
Sonde model: RS904
Thermo sensor: RS904
Processing Steps
QC processing completed (in 2.0s)
Levels created (in less than 1.0s)
WMO message coded (in less than 1.0s)
QC Data Recovery Statistics
2825 raw data records
48 ( 1.7%) raw data records had PTU checksum errors
264 ( 9.3%) raw data records had GPS checksum errors
18 ( 0.6%) raw data records had both PTU and GPS checksum errors
pres : input file reported 1381 ( 48.9%) values, QC retained 1283 ( 92.9%), overall rate: 45.4%
tdry : input file reported 1381 ( 48.9%) values, QC retained 1283 ( 92.9%), overall rate: 45.4%
RH : input file reported 1309 ( 46.3%) values, QC retained 1227 ( 93.7%), overall rate: 43.4%
winds: input file reported 2659 ( 94.1%) values, QC retained 2521 ( 94.8%), overall rate: 89.2%
QC Height Integration
Upward integration starts @ 0.0m
Downward integration starts @ 9118.4m
QC for GPS Altitude
Points which failed the limit check: 0
Points which failed the buddy check: 0
Points which failed the Q/C filter check: 0
QC for GPS Latitude
Points which failed the limit check: 0
Points which failed the buddy check: 0
Points which failed the Q/C filter check: 0
QC for GPS Longitude
Points which failed the limit check: 0
Points which failed the buddy check: 0
Points which failed the Q/C filter check: 0
QC for Pressure
Points which failed the limit check: 0
Points which failed the buddy check: 0
Points which failed the outlier check: 0
Points which failed the Q/C filter check: 0
QC for Relative Humidity
Points which failed the limit check: 0
Points which failed the buddy check: 4
Points which failed the outlier check: 0
Points which failed the Q/C filter check: 0
Points which failed the lower limit check: 0
Points which failed the upper limit check: 0
Points which failed the lower limit check: 0
Points which failed the upper limit check: 0
QC for Temperature
Points which failed the limit check: 0
Points which failed the buddy check: 0
Points which failed the outlier check: 0
Points which failed the Q/C filter check: 0
QC for VV Pressure
Points which failed the limit check: 0
Points which failed the buddy check: 0
Points which failed the outlier check: 0
Points which failed the Q/C filter check: 0
QC for Winds
Points which failed the wind speed limit check: 0
Points which failed the wind direction limit check: 0
Points which failed the number of satellites check: 0
Wind error check not applied (sonde is not xRD41)
Points which failed the buddy check: 0
Outlier check disabled
Q/C filter check disabled
Points which failed the vertical velocity check: 0
Surface Observation
Splash time (time of the last usable frame): 705.75s
Extrapolated surface time: 706.29s
Fall distance from last frame: 5.6m
Extrapolated surface pressure: 997.0mb
Extrapolated surface temperature: 16.6C
Extrapolated surface rh: 62.8%
Surface Wind Determination
Surface wind coded for an adjusted altitude of 10.0m
PTU/wind offset is 0.00s (PTU observations lead wind observations by 0.00s)
TD Dry Bias Correction
Not applied
Correction was present in the source data
Number of 0.1% RH values removed: 0