TWP/MWR/C2 - Power outage in I-Van resulted in Missing Data

I forgot to put in the daily report that we took the I van down yesterday to replace the 
fans
in the Clary UPS. This was from 2300z on 24May03 to 0010z on 25May03. Instruments affected 
:

MPL
Ceilometer
MWR
WSI
TSI

Rex

• 23.8 GHz blackbody+noise injection signal(bbn23)
• Temperature correction coefficient at 23.8 GHz(tc23)
• 31.4 GHz Blackbody signal(bb31)
• 23.8 GHz sky signal(sky23)
• Mean IR brightness temperature(ir_temp)
• 31.4 GHz blackbody+noise injection signal(bbn31)
• Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
• Mean 31.4 GHz sky brightness temperature(tbsky31)
• altitude above sea levelaltunits(alt)
• Sky/Cloud Infra-Red Temperature(sky_ir_temp)
• 31.4 GHz sky signal(sky31)
• Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
• Mixer kinetic (physical) temperature(tkxc)
• Blackbody kinetic temperature(tkbb)
• north latitude for all the input platforms.(lat)
• Water on Teflon window (1=WET, 0=DRY)(wet_window)
• Mean 23.8 GHz sky brightness temperature(tbsky23)
• Mean total water vapor amount along LOS path(vap)
• Ambient temperature(tkair)
• Time offset from base_time(base_time)
• Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
• Mean total liquid water amount along LOS path(liq)
• Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
• east longitude for all the input platforms.(lon)
• 23.8 GHz Blackbody signal(bb23)
• Noise diode mount temperature(tknd)
• Actual Azimuth(actaz)
• Time offset of tweaks from base_time(time_offset)
• Actual elevation angle(actel)
• Temperature correction coefficient at 31.4 GHz(tc31)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
• 23.8 GHz sky signal(sky23)
• 23.8 GHz noise injection brightness temperature(unoise23)
• Mean total liquid water amount along LOS path(liq)
• Actual elevation angle(actel)
• east longitude for all the input platforms.(lon)
• 23.8 GHz sky plus noise injection signal(skyn23)
• altitude above sea levelaltunits(alt)
• Noise diode mount temperature(tknd)
• Actual Azimuth(actaz)
• 31.4 GHz blackbody+noise injection signal(bbn31)
• Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
• Mean IR brightness temperature(ir_temp)
• Mean total water vapor amount along LOS path(vap)
• 31.4 GHz Blackbody signal(bb31)
• Blackbody kinetic temperature(tkbb)
• 31.4 GHz sky+noise injection signal(skyn31)
• Sky/Cloud Infra-Red Temperature(sky_ir_temp)
• Time offset of tweaks from base_time(time_offset)
• 31.4 GHz noise injection brightness temperature(unoise31)
• Mean 31.4 GHz sky brightness temperature(tbsky31)
• Which LOS configuration(losn)
• 31.4 GHz sky signal(sky31)
• Mixer kinetic (physical) temperature(tkxc)
• Time offset from base_time(base_time)
• Ambient temperature(tkair)
• Water on Teflon window (1=WET, 0=DRY)(wet_window)
• 23.8 GHz blackbody+noise injection signal(bbn23)
• north latitude for all the input platforms.(lat)
• Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
• Temperature correction coefficient at 23.8 GHz(tc23)
• Mean 23.8 GHz sky brightness temperature(tbsky23)
• 23.8 GHz Blackbody signal(bb23)
• Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
• Temperature correction coefficient at 31.4 GHz(tc31)

• Standard deviation of ensemble average for MWR ir_temp(sdev_ir_temp_mwr)
• Serial number for the sonde used at this time.(sonde_serial_number)
• Ensemble average for MWR vapor in window centered about balloon release(mean_vap_mwr)
• MWR IPM output for 23.8 GHz sky brightness temperature using sonde T,P,RH(model_tbsky23)
• Status of the Instrument Performance Model results(model_status_flag)
• Time offset from base_time(base_time)
• Integrated vapor column from sonde using a direct calculation (external from the
  IPM)(integ_vap_sonde_direct)
• Number of cloudy observations in BLC cloud1 ensemble(num_cloud1_cloudy)
• Ensemble average of first cloud base height from Belfort ceilometer in 40 minute
  window centered upon balloon release (clear observations are excluded)(mean_cloud1)
• east longitude for all the input platforms.(lon)
• Number of clear observations in BLC cloud1 ensemble (not used in ensemble
  average)(num_cloud1_clear)
• Standard deviation of ensemble average of first cloud base height from the
  Belfort ceilometer(sdev_cloud1)
• Ensemble average for MWR IR Brightness Temperature in window centered about
  balloon release(mean_ir_temp_mwr)
• Size of MWR ensemble for mean_tbsky31_mwr field(num_tbsky31_mwr)
• MWR IPM output for atmospheric mean radiating temp using sonde T,P,RH(model_tmr31)
• Standard deviation of ensemble average for MWR vapor(sd_vap_mwr)
• Time offset of tweaks from base_time(time_offset)
• Size of MWR ensemble for mean_vap_mwr field(num_vap_mwr)
• Standard deviation for ensemble average for MWR 31.4 GHz sky brightness
  temperature(sd_tbsky31_mwr)
• Size of MWR ensemble for mean_liq_mwr field(num_liq_mwr)
• ensemble average for MWR 23.8 GHz sky brightness temperature in window centered
  about balloon release(mean_tbsky23_mwr)
• north latitude for all the input platforms.(lat)
• Ensemble average for MWR liquid in window centered about balloon release(mean_liq_mwr)
• (model_tbsky31 - mean_tbsky31)/sd_tbsky31_mwr(sdev_tbsky31_away)
• ensemble average for MWR 31.4 GHz sky brightness temperature in window centered
  about balloon release(mean_tbsky31_mwr)
• Size of MWR ensemble for mean_tbsky23_mwr field(num_tbsky23_mwr)
• Standard deviation for ensemble average for MWR liq(sd_liq_mwr)
• MWR IPM output for 31.4 GHz sky brightness temperature using sonde T,P,RH(model_tbsky31)
• (integ_vap_sonde - mean_vap_mwr) /sd_vap_mwr(sdev_vap_away)
• maximum height attained by the balloon in pressure units(max_height_sonde)
• altitude above sea levelaltunits(alt)
• Integrated vapor column from sonde using MWR Instrument Performance Model (IPM)(integ_vap_sonde)
• denotes whether mean_liq_mwr was above LIQ_WATER_THRESHOLD or whether MWR IPM
  used the cloud model(likely_clouds)
• Standard deviation for ensemble average for MWR 23.8 GHz sky brightness
  temperature(sd_tbsky23_mwr)
• Size of MWR ensemble for mean_ir_temp_mwr field(num_ir_temp_mwr)
• (model_tbsky23 - mean_tbsky23_mwr)/sd_tbsky23_mwr(sdev_tbsky23_away)
• MWR IPM output for atmospheric mean radiating temp using sonde T,P,RH(model_tmr23)

• Standard deviation about the mean for the total water vapor amount(vap_sdev)
• Fraction of data in averaging interval with water on the Teflon window(water_flag_fraction)
• altitude above sea levelaltunits(alt)
• Number of points included in the ir_temp ensemble(num_obs_irt)
• north latitude for all the input platforms.(lat)
• east longitude for all the input platforms.(lon)
• Mean total liquid water amount along LOS path(liq)
• Standard deviation about the mean for the 31.4 GHz sky brightness temperature(tbsky31_sdev)
• Mean IR brightness temperature(ir_temp)
• Time offset of tweaks from base_time(time_offset)
• Number of points included in the ensemble of all the fields except the ir_temp
  fields(num_obs)
• Standard deviation about the mean for the 23.8 GHz sky brightness temperature(tbsky23_sdev)
• Mean 31.4 GHz sky brightness temperature(tbsky31)
• Time offset from base_time(base_time)
• Standard deviation about the mean for the IR brightness temperature(ir_temp_sdev)
• Mean 23.8 GHz sky brightness temperature(tbsky23)
• Mean total water vapor amount along LOS path(vap)
• Standard deviation about the mean for the total liquid water amount(liq_sdev)

• 31.4 GHz sky signal(tipsky31)
• north latitude for all the input platforms.(lat)
• 31.4 GHz blackbody+noise injection signal(bbn31)
• Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
• altitude above sea levelaltunits(alt)
• Noise diode mount temperature(tknd)
• Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
• Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
• Time offset of tweaks from base_time(time_offset)
• Temperature correction coefficient at 23.8 GHz(tc23)
• Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
• Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
• Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
• 31.4 GHz goodness-of-fit coefficient(r31)
• Actual Azimuth(actaz)
• 23.8 GHz sky signal(tipsky23)
• 31.4 GHz Blackbody signal(bb31)
• Ambient temperature(tkair)
• Time offset from base_time(base_time)
• Blackbody kinetic temperature(tkbb)
• Water on Teflon window (1=WET, 0=DRY)(wet_window)
• 23.8 GHz goodness-of-fit coefficient(r23)
• Actual elevation angle(actel)
• 23.8 GHz Blackbody signal(bb23)
• east longitude for all the input platforms.(lon)
• 23.8 GHz blackbody+noise injection signal(bbn23)
• Mixer kinetic (physical) temperature(tkxc)
• Temperature correction coefficient at 31.4 GHz(tc31)

TWP/MWR/C2 - Data Loss due to power difficulties

The MWR heater was inadvertently connected to a UPS with the WSI air conditioner. The UPS 
apparently failed when attempting to provide power to both systems, probably when the MWR 
detected rain and turned on the heater. This caused the MWR to lose power and melted the 
power connector to the blower and burned the internal heater wiring. The blower/heater 
was replaced with a new, refurbished unit and a temporary power connection was made to a 
non-UPS source.

• 31.4 GHz sky signal(sky31)
• Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
• Mixer kinetic (physical) temperature(tkxc)
• 23.8 GHz blackbody+noise injection signal(bbn23)
• north latitude for all the input platforms.(lat)
• Blackbody kinetic temperature(tkbb)
• Water on Teflon window (1=WET, 0=DRY)(wet_window)
• Temperature correction coefficient at 23.8 GHz(tc23)
• Mean 23.8 GHz sky brightness temperature(tbsky23)
• 31.4 GHz Blackbody signal(bb31)
• Mean total water vapor amount along LOS path(vap)
• 23.8 GHz sky signal(sky23)
• Ambient temperature(tkair)
• Mean IR brightness temperature(ir_temp)
• Time offset from base_time(base_time)
• Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
• 31.4 GHz blackbody+noise injection signal(bbn31)
• Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
• Mean 31.4 GHz sky brightness temperature(tbsky31)
• Mean total liquid water amount along LOS path(liq)
• Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
• east longitude for all the input platforms.(lon)
• 23.8 GHz Blackbody signal(bb23)
• Noise diode mount temperature(tknd)
• Actual Azimuth(actaz)
• Time offset of tweaks from base_time(time_offset)
• Actual elevation angle(actel)
• altitude above sea levelaltunits(alt)
• Sky/Cloud Infra-Red Temperature(sky_ir_temp)
• Temperature correction coefficient at 31.4 GHz(tc31)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• Sky/Cloud Infra-Red Temperature(sky_ir_temp)
• Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
• 23.8 GHz sky signal(sky23)
• Time offset of tweaks from base_time(time_offset)
• 23.8 GHz noise injection brightness temperature(unoise23)
• Mean total liquid water amount along LOS path(liq)
• 31.4 GHz noise injection brightness temperature(unoise31)
• Actual elevation angle(actel)
• east longitude for all the input platforms.(lon)
• Mean 31.4 GHz sky brightness temperature(tbsky31)
• 23.8 GHz sky plus noise injection signal(skyn23)
• Which LOS configuration(losn)
• 31.4 GHz sky signal(sky31)
• altitude above sea levelaltunits(alt)
• Noise diode mount temperature(tknd)
• Time offset from base_time(base_time)
• Mixer kinetic (physical) temperature(tkxc)
• Actual Azimuth(actaz)
• 31.4 GHz blackbody+noise injection signal(bbn31)
• Ambient temperature(tkair)
• Water on Teflon window (1=WET, 0=DRY)(wet_window)
• north latitude for all the input platforms.(lat)
• 23.8 GHz blackbody+noise injection signal(bbn23)
• Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
• Mean IR brightness temperature(ir_temp)
• Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
• Temperature correction coefficient at 23.8 GHz(tc23)
• Mean 23.8 GHz sky brightness temperature(tbsky23)
• 31.4 GHz Blackbody signal(bb31)
• Mean total water vapor amount along LOS path(vap)
• 23.8 GHz Blackbody signal(bb23)
• Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
• Blackbody kinetic temperature(tkbb)
• 31.4 GHz sky+noise injection signal(skyn31)
• Temperature correction coefficient at 31.4 GHz(tc31)

• 31.4 GHz sky signal(tipsky31)
• north latitude for all the input platforms.(lat)
• Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
• 31.4 GHz goodness-of-fit coefficient(r31)
• Actual Azimuth(actaz)
• 23.8 GHz sky signal(tipsky23)
• 31.4 GHz blackbody+noise injection signal(bbn31)
• 31.4 GHz Blackbody signal(bb31)
• Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
• Ambient temperature(tkair)
• altitude above sea levelaltunits(alt)
• Noise diode mount temperature(tknd)
• Time offset from base_time(base_time)
• Blackbody kinetic temperature(tkbb)
• Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
• Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
• Water on Teflon window (1=WET, 0=DRY)(wet_window)
• 23.8 GHz goodness-of-fit coefficient(r23)
• Time offset of tweaks from base_time(time_offset)
• Temperature correction coefficient at 23.8 GHz(tc23)
• Actual elevation angle(actel)
• Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
• 23.8 GHz Blackbody signal(bb23)
• Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
• east longitude for all the input platforms.(lon)
• 23.8 GHz blackbody+noise injection signal(bbn23)
• Temperature correction coefficient at 31.4 GHz(tc31)
• Mixer kinetic (physical) temperature(tkxc)

TWP/MWR/C2 - thermal instability

The MWR required an unusually long time to reach thermal stability after a 4-day outage 
due to a power failure that damaged the blower/heater assembly. Also during this period, 
the heater, which had been replaced, appears to have been on continously, causing the data 
to be inappropriately flagged.

• 31.4 GHz sky signal(sky31)
• Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
• Water on Teflon window (1=WET, 0=DRY)(wet_window)
• Temperature correction coefficient at 23.8 GHz(tc23)
• Mean 23.8 GHz sky brightness temperature(tbsky23)
• Mean total water vapor amount along LOS path(vap)
• 23.8 GHz sky signal(sky23)
• Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
• Temperature correction coefficient at 31.4 GHz(tc31)
• Mean 31.4 GHz sky brightness temperature(tbsky31)
• Mean total liquid water amount along LOS path(liq)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
• 23.8 GHz sky signal(sky23)
• Mean total liquid water amount along LOS path(liq)
• Water on Teflon window (1=WET, 0=DRY)(wet_window)
• Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
• Temperature correction coefficient at 23.8 GHz(tc23)
• Mean 23.8 GHz sky brightness temperature(tbsky23)
• Mean total water vapor amount along LOS path(vap)
• Mean 31.4 GHz sky brightness temperature(tbsky31)
• 31.4 GHz sky signal(sky31)
• Temperature correction coefficient at 31.4 GHz(tc31)

• 31.4 GHz sky signal(tipsky31)
• Water on Teflon window (1=WET, 0=DRY)(wet_window)
• Temperature correction coefficient at 23.8 GHz(tc23)
• Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
• 23.8 GHz sky signal(tipsky23)
• Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
• Temperature correction coefficient at 31.4 GHz(tc31)

TWP/MWR/C2 - Data collection problem

Large, frequent data gaps occurred due to a failing laptop computer. The problem was 
corrected when a new computer was installed.

• 31.4 GHz sky signal(sky31)
• Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
• Mixer kinetic (physical) temperature(tkxc)
• 23.8 GHz blackbody+noise injection signal(bbn23)
• Blackbody kinetic temperature(tkbb)
• north latitude for all the input platforms.(lat)
• Water on Teflon window (1=WET, 0=DRY)(wet_window)
• Temperature correction coefficient at 23.8 GHz(tc23)
• Mean 23.8 GHz sky brightness temperature(tbsky23)
• 31.4 GHz Blackbody signal(bb31)
• Mean total water vapor amount along LOS path(vap)
• 23.8 GHz sky signal(sky23)
• Ambient temperature(tkair)
• Mean IR brightness temperature(ir_temp)
• Time offset from base_time(base_time)
• Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
• 31.4 GHz blackbody+noise injection signal(bbn31)
• Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
• Mean 31.4 GHz sky brightness temperature(tbsky31)
• Mean total liquid water amount along LOS path(liq)
• Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
• east longitude for all the input platforms.(lon)
• 23.8 GHz Blackbody signal(bb23)
• Noise diode mount temperature(tknd)
• Actual Azimuth(actaz)
• Time offset of tweaks from base_time(time_offset)
• Actual elevation angle(actel)
• altitude above sea levelaltunits(alt)
• Sky/Cloud Infra-Red Temperature(sky_ir_temp)
• Temperature correction coefficient at 31.4 GHz(tc31)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• 31.4 GHz sky signal(tipsky31)
• north latitude for all the input platforms.(lat)
• Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
• 31.4 GHz goodness-of-fit coefficient(r31)
• Actual Azimuth(actaz)
• 23.8 GHz sky signal(tipsky23)
• 31.4 GHz blackbody+noise injection signal(bbn31)
• 31.4 GHz Blackbody signal(bb31)
• Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
• Ambient temperature(tkair)
• altitude above sea levelaltunits(alt)
• Noise diode mount temperature(tknd)
• Time offset from base_time(base_time)
• Blackbody kinetic temperature(tkbb)
• Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
• Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
• Water on Teflon window (1=WET, 0=DRY)(wet_window)
• 23.8 GHz goodness-of-fit coefficient(r23)
• Time offset of tweaks from base_time(time_offset)
• Temperature correction coefficient at 23.8 GHz(tc23)
• Actual elevation angle(actel)
• Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
• 23.8 GHz Blackbody signal(bb23)
• Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
• east longitude for all the input platforms.(lon)
• 23.8 GHz blackbody+noise injection signal(bbn23)
• Mixer kinetic (physical) temperature(tkxc)
• Temperature correction coefficient at 31.4 GHz(tc31)