Ambient Equilibration
Cabin temperature: 25C
Sensor type: RS80
Ambient pressure: 298mb
Ambient temperature: -49C
Ambient RH: 50%
Temperature equilibration accuracy: 0.1C
RH equilibration accuracy: 5.0%
Temperature equilibration at time: 25.6s, RS80 T sensor time constants: 6.6
RH equilibration at time: 53.8s, RS80 RH sensor time constants: 4.4
Pressure: same equilibration time used as for temperature
Wind equilibration: 10.0s
Description
D20180127_001902_P.1 174245068 18012618307 WXWXC AR01, 18012618307 WXWXC AR01 AFRC C-130J, ---
Data type: AVAPS SOUNDING DATA, Channel 1
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 1
Sonde model: RS904
Thermo sensor: RS904
Processing Steps
QC processing completed (in 1.0s)
Levels created (in less than 1.0s)
WMO message coded (in less than 1.0s)
QC Data Recovery Statistics
2929 raw data records
26 ( 0.9%) raw data records had PTU checksum errors
179 ( 6.1%) raw data records had GPS checksum errors
12 ( 0.4%) raw data records had both PTU and GPS checksum errors
pres : input file reported 1444 ( 49.3%) values, QC retained 1367 ( 94.7%), overall rate: 46.7%
tdry : input file reported 1443 ( 49.3%) values, QC retained 1367 ( 94.7%), overall rate: 46.7%
RH : input file reported 1430 ( 48.8%) values, QC retained 1307 ( 91.4%), overall rate: 44.6%
winds: input file reported 2818 ( 96.2%) values, QC retained 2707 ( 96.1%), overall rate: 92.4%
QC Height Integration
Upward integration starts @ 0.0m
Downward integration starts @ 9146.2m
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: 1
Points which failed the outlier check: 0
Points which failed the Q/C filter check: 2
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: 3
Surface Observation
Splash time (time of the last usable frame): 731.76s
Extrapolated surface time: 732.30s
Fall distance from last frame: 4.9m
Extrapolated surface pressure: 1012.4mb
Extrapolated surface temperature: 7.9C
Extrapolated surface rh: 79.9%
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