Data Quality Reports for Session: 106185 User: perez Completed: 06/20/2007

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D990106.1SGP/MWR/B1/B4/B6/C1 - software changesgpmwrlosB1.a0, sgpmwrlosB1.a1, sgpmwrlosB4.a0, sgpmwrlosB4.a1, sgpmwrlosB6.a0,
sgpmwrlosB6.a1, sgpmwrlosC1.a1, sgpmwrlosC1.b1, sgpmwrtipB1.a0, sgpmwrtipB4.a0, sgpmwrtipB6.a0
D990113.1SGP/MWR/B1/B4/B5/B6/C1 - software upgrade (version 3.27)sgpmwrlosB1.a1, sgpmwrlosB4.a1, sgpmwrlosB5.a1, sgpmwrlosB6.a1, sgpmwrlosC1.a1,
sgpmwrlosC1.b1, sgpmwrtipB1.a0, sgpmwrtipB4.a0, sgpmwrtipB5.a0, sgpmwrtipB6.a0
D990916.1SGP/MWR/B1/B4/B5/B6 - data file split at 23:59sgpmwrlosB1.a1, sgpmwrlosB1.b1, sgpmwrlosB4.a1, sgpmwrlosB4.b1, sgpmwrlosB5.a1,
sgpmwrlosB5.b1, sgpmwrlosB6.a1, sgpmwrlosB6.b1, sgpmwrtipB1.a1, sgpmwrtipB4.a1, sgpmwrtipB5.a1,
sgpmwrtipB6.a1
D991102.1SGP/MWR/B4 - power lines in field of viewsgpmwrlosB4.00, sgpmwrlosB4.a1, sgpmwrlosB4.b1, sgpmwrtipB4.00, sgpmwrtipB4.a1,
sgp5mwravgB4.c1


DQRID : D990106.1
Start DateStart TimeEnd DateEnd Time
04/03/1995000010/12/19981900
Subject:
SGP/MWR/B1/B4/B6/C1 - software change
DataStreams:sgpmwrlosB1.a0, sgpmwrlosB1.a1, sgpmwrlosB4.a0, sgpmwrlosB4.a1, sgpmwrlosB6.a0,
sgpmwrlosB6.a1, sgpmwrlosC1.a1, sgpmwrlosC1.b1, sgpmwrtipB1.a0, sgpmwrtipB4.a0, sgpmwrtipB6.a0
Description:
The MWR operating software was changed on 12 October 1998 to provide additional 
functionality as described below. This change affects the format of the raw and ingested data. 
   
NEW FEATURES
1. Faster sampling rate
   
Standard line-of-sight (LOS) observations can now be acquired at 15-second intervals vs. 
20-second intervals previously. (The standard LOS cycle is comprised of one sky sample per 
blackbody sample and gain update.)
   
2. More flexible sampling strategy
   
Multiple sky observations can be acquired during a LOS cycle, up to 1024 per gain update. 
This permits sky samples to be acquired at intervals of 2.67 seconds for improved 
temporal resolution of cloud liquid water variations and better coordination with the millimeter 
cloud radar during IOPs.
   
3. Separation of zenith LOS observations from TIP data
   
When the radiometer is in TIP mode, the zenith LOS observations are now extracted, the PWV 
and LWP computed and reported separately in the output file. This eliminates the periods 
of missing LOS data during calibration checks/updates.
   
4. Automatic self-calibration
   
The software now permits the calibration to be updated at specified intervals or 
continuously. In the first case, LOS mode is automatically changed to TIP mode at user-specified 
intervals or whenever clear sky conditions occur, the tip data reduced, the calibration 
updated ,and the radiometer returned to LOS mode without operator intervention. In the 
second case, the radiometer is continuously is TIP mode until changed by the operator.
   
5. Graphical user display
   
The graphical display is comprised of a status display, a message display, a temperature 
plot, a plot of the retrieved PWV and LWP, and (in TIP mode) a plot of the latest tip 
curves.

Editor's Note: The SGP.C1 data were reprocessed in 2004 and enhancement #3 described above 
was applied to the data prior to Oct 1998.  The SGP.BF data are queued for reprocessing 
as well.
Measurements:sgpmwrtipB1.a0:
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
sgpmwrlosB1.a1:
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Ambient temperature(tkair)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Noise diode mount temperature(tknd)
sgpmwrlosB4.a0:
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise diode mount temperature(tknd)
  • Ambient temperature(tkair)
sgpmwrlosB6.a0:
  • Noise diode mount temperature(tknd)
  • Ambient temperature(tkair)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
sgpmwrlosC1.b1:
  • 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)
  • Ambient temperature(tkair)
sgpmwrtipB6.a0:
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
sgpmwrlosB1.a0:
  • 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)
  • Ambient temperature(tkair)
sgpmwrtipB4.a0:
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
sgpmwrlosC1.a1:
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise diode mount temperature(tknd)
  • Ambient temperature(tkair)
sgpmwrlosB4.a1:
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Ambient temperature(tkair)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise diode mount temperature(tknd)
sgpmwrlosB6.a1:
  • Ambient temperature(tkair)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise diode mount temperature(tknd)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)

Back To Table of Contents

DQRID : D990113.1
Start DateStart TimeEnd DateEnd Time
07/21/1993140601/12/19992359
Subject:
SGP/MWR/B1/B4/B5/B6/C1 - software upgrade (version 3.27)
DataStreams:sgpmwrlosB1.a1, sgpmwrlosB4.a1, sgpmwrlosB5.a1, sgpmwrlosB6.a1, sgpmwrlosC1.a1,
sgpmwrlosC1.b1, sgpmwrtipB1.a0, sgpmwrtipB4.a0, sgpmwrtipB5.a0, sgpmwrtipB6.a0
Description:
At 00:00 GMT on 7 January version 3.27 of the MWR operating program was installed and made 
operational at the SGP central facility (C1).  No problems were noted over the next few 
days and the boundary facility MWRs (B1, B4, B5, B6) were upgraded at 20:00 GMT on 11 
January.  This version includes a beam width correction I developed as well as providing the 
capability to automatically level the elevation mirror (that is, to automatically detect 
and correct offsets in the elevation angle stepper motor position.)

On 12 January I discovered that the '486-based MWR computers at B1, B4 and B6 were not 
executing the system command to move and rename the data files so that the ARM data system 
could retrieve them.  Reducing the length of the storage arrays in the auto-leveling 
feature from 1000 to 250 resolved the problem.  This results in the auto-leveling being based 
on only 4 hours of clear sky data rather than 16 hours at B5 and C1.  This version of the 
program is 3.28. Version 3.27 (running at B5 and C1) can be installed if and when these 
computers are upgraded to Pentium-class machines.

The improvement in the quality of the tip curves resulting from the auto-leveling has been 
dramatic: differences in the brightness temperatures at 3 airmasses (19.5 and 160.5 
degrees) have been reduced from +/- 5 K to +/- 0.5 K.  The goodness-of-fit coefficient for 
the tip curves has improved from about 0.995 to over 0.998.  In order to take full 
advantage of this improvement to detect and reject cloudy tip curves, the minimum value of the 
goodness-of-fit coefficient for a valid tip curve has been increased from 0.995 to 0.998.

Editor's Note: The SGP.C1 data were reprocessed in 2004 to produce a common DOD for all 
time.  The 1996-1998 data reprocessing included beam width and mirror-leveling corrections, 
but the data prior to that range did not have these corrections applied.
Measurements:sgpmwrtipB1.a0:
  • 31.4 GHz sky signal(31tipsky)
  • 23.8 GHz sky signal(23tipsky)
sgpmwrlosB5.a1:
  • Averaged 31.4 GHz sky brightness temperature(31tbsky)
  • Mean total water vapor amount along LOS path(vap)
  • Mean total liquid water amount along LOS path(liq)
  • Averaged 23.8 GHz sky brightness temperature(23tbsky)
sgpmwrtipB5.a0:
  • 31.4 GHz sky signal(31tipsky)
  • 23.8 GHz sky signal(23tipsky)
sgpmwrlosB1.a1:
  • Averaged 23.8 GHz sky brightness temperature(23tbsky)
  • Mean total water vapor amount along LOS path(vap)
  • Mean total liquid water amount along LOS path(liq)
  • Averaged 31.4 GHz sky brightness temperature(31tbsky)
sgpmwrlosC1.b1:
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Mean total liquid water amount along LOS path(liq)
  • Mean total water vapor amount along LOS path(vap)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
sgpmwrtipB6.a0:
  • 23.8 GHz sky signal(23tipsky)
  • 31.4 GHz sky signal(31tipsky)
sgpmwrtipB4.a0:
  • 31.4 GHz sky signal(31tipsky)
  • 23.8 GHz sky signal(23tipsky)
sgpmwrlosC1.a1:
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Mean total water vapor amount along LOS path(vap)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • Mean total liquid water amount along LOS path(liq)
sgpmwrlosB4.a1:
  • Averaged 31.4 GHz sky brightness temperature(31tbsky)
  • Mean total liquid water amount along LOS path(liq)
  • Averaged 23.8 GHz sky brightness temperature(23tbsky)
  • Mean total water vapor amount along LOS path(vap)
sgpmwrlosB6.a1:
  • Mean total liquid water amount along LOS path(liq)
  • Averaged 31.4 GHz sky brightness temperature(31tbsky)
  • Averaged 23.8 GHz sky brightness temperature(23tbsky)
  • Mean total water vapor amount along LOS path(vap)

Back To Table of Contents

DQRID : D990916.1
Start DateStart TimeEnd DateEnd Time
10/29/1998000008/12/19992359
Subject:
SGP/MWR/B1/B4/B5/B6 - data file split at 23:59
DataStreams:sgpmwrlosB1.a1, sgpmwrlosB1.b1, sgpmwrlosB4.a1, sgpmwrlosB4.b1, sgpmwrlosB5.a1,
sgpmwrlosB5.b1, sgpmwrlosB6.a1, sgpmwrlosB6.b1, sgpmwrtipB1.a1, sgpmwrtipB4.a1, sgpmwrtipB5.a1,
sgpmwrtipB6.a1
Description:
A problem with the MWR operating software has been corrected.  However, several files were 
generated that contain one record of data collected at midnight but labeled with the 
previous day's date.
Measurements:sgpmwrlosB5.a1:
  • 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 23.8 GHz(tnd_nom23)
  • Noise diode mount temperature(tknd)
  • Mean IR brightness temperature(ir_temp)
  • Mean total water vapor amount along LOS path(vap)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • Ambient temperature(tkair)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • 31.4 GHz Blackbody signal(bb31)
  • 23.8 GHz sky signal(sky23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
  • Time offset from base_time(base_time)
  • 23.8 GHz Blackbody signal(bb23)
  • Blackbody kinetic temperature(tkbb)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 31.4 GHz sky signal(sky31)
  • Mean total liquid water amount along LOS path(liq)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Mixer kinetic (physical) temperature(tkxc)
sgpmwrlosB1.a1:
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Noise diode mount temperature(tknd)
  • Mean total liquid water amount along LOS path(liq)
  • Blackbody kinetic temperature(tkbb)
  • Time offset of tweaks from base_time(time_offset)
  • 31.4 GHz Blackbody signal(bb31)
  • 23.8 GHz sky signal(sky23)
  • Ambient temperature(tkair)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Mixer kinetic (physical) temperature(tkxc)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Mean total water vapor amount along LOS path(vap)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Time offset from base_time(base_time)
  • Mean IR brightness temperature(ir_temp)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • 31.4 GHz sky signal(sky31)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 23.8 GHz Blackbody signal(bb23)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
sgpmwrtipB6.a1:
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • 31.4 GHz sky signal(tipsky31)
  • Blackbody kinetic temperature(tkbb)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Actual Azimuth(actaz)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Time offset of tweaks from base_time(time_offset)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
  • Noise diode mount temperature(tknd)
  • 23.8 GHz Blackbody signal(bb23)
  • Mixer kinetic (physical) temperature(tkxc)
  • Ambient temperature(tkair)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Time offset from base_time(base_time)
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • 23.8 GHz sky signal(tipsky23)
  • Actual elevation angle(actel)
  • 31.4 GHz Blackbody signal(bb31)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
sgpmwrlosB6.b1:
  • 23.8 GHz Blackbody signal(bb23)
  • Mean total water vapor amount along LOS path(vap)
  • 31.4 GHz Blackbody signal(bb31)
  • 31.4 GHz sky signal(sky31)
  • Mean total liquid water amount along LOS path(liq)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Mean IR brightness temperature(ir_temp)
  • Time offset from base_time(base_time)
  • 23.8 GHz sky signal(sky23)
  • Time offset of tweaks from base_time(time_offset)
  • Mixer kinetic (physical) temperature(tkxc)
  • Noise diode mount temperature(tknd)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Ambient temperature(tkair)
  • Blackbody kinetic temperature(tkbb)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
sgpmwrlosB4.b1:
  • Time offset of tweaks from base_time(time_offset)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
  • Mean total water vapor amount along LOS path(vap)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Mixer kinetic (physical) temperature(tkxc)
  • Mean total liquid water amount along LOS path(liq)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • 31.4 GHz Blackbody signal(bb31)
  • Noise diode mount temperature(tknd)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Blackbody kinetic temperature(tkbb)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 31.4 GHz sky signal(sky31)
  • 23.8 GHz Blackbody signal(bb23)
  • Ambient temperature(tkair)
  • 23.8 GHz sky signal(sky23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Mean IR brightness temperature(ir_temp)
  • Time offset from base_time(base_time)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
sgpmwrtipB4.a1:
  • 23.8 GHz sky signal(tipsky23)
  • 31.4 GHz sky signal(tipsky31)
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Time offset of tweaks from base_time(time_offset)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Actual elevation angle(actel)
  • 31.4 GHz Blackbody signal(bb31)
  • Time offset from base_time(base_time)
  • Mixer kinetic (physical) temperature(tkxc)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Blackbody kinetic temperature(tkbb)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise diode mount temperature(tknd)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
  • Actual Azimuth(actaz)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • 23.8 GHz Blackbody signal(bb23)
  • Ambient temperature(tkair)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
sgpmwrtipB5.a1:
  • 23.8 GHz Blackbody signal(bb23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Ambient temperature(tkair)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 31.4 GHz Blackbody signal(bb31)
  • Time offset of tweaks from base_time(time_offset)
  • Actual Azimuth(actaz)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • 31.4 GHz sky signal(tipsky31)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Mixer kinetic (physical) temperature(tkxc)
  • Actual elevation angle(actel)
  • Blackbody kinetic temperature(tkbb)
  • 23.8 GHz sky signal(tipsky23)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Time offset from base_time(base_time)
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Noise diode mount temperature(tknd)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
sgpmwrlosB1.b1:
  • Ambient temperature(tkair)
  • Mean IR brightness temperature(ir_temp)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
  • 31.4 GHz Blackbody signal(bb31)
  • Mixer kinetic (physical) temperature(tkxc)
  • Blackbody kinetic temperature(tkbb)
  • 31.4 GHz sky signal(sky31)
  • Time offset of tweaks from base_time(time_offset)
  • Time offset from base_time(base_time)
  • 23.8 GHz sky signal(sky23)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Mean total liquid water amount along LOS path(liq)
  • Noise diode mount temperature(tknd)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • 23.8 GHz Blackbody signal(bb23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Mean total water vapor amount along LOS path(vap)
sgpmwrtipB1.a1:
  • Actual elevation angle(actel)
  • 31.4 GHz Blackbody signal(bb31)
  • Actual Azimuth(actaz)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Blackbody kinetic temperature(tkbb)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • 23.8 GHz Blackbody signal(bb23)
  • Mixer kinetic (physical) temperature(tkxc)
  • 23.8 GHz sky signal(tipsky23)
  • Time offset of tweaks from base_time(time_offset)
  • Noise diode mount temperature(tknd)
  • 31.4 GHz sky signal(tipsky31)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Ambient temperature(tkair)
  • 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)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • Time offset from base_time(base_time)
sgpmwrlosB4.a1:
  • Mean IR brightness temperature(ir_temp)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Ambient temperature(tkair)
  • Mean total liquid water amount along LOS path(liq)
  • 31.4 GHz Blackbody signal(bb31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Time offset of tweaks from base_time(time_offset)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Blackbody kinetic temperature(tkbb)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
  • Mixer kinetic (physical) temperature(tkxc)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 23.8 GHz sky signal(sky23)
  • Mean total water vapor amount along LOS path(vap)
  • Time offset from base_time(base_time)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • 31.4 GHz sky signal(sky31)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise diode mount temperature(tknd)
  • 23.8 GHz Blackbody signal(bb23)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
sgpmwrlosB5.b1:
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Time offset of tweaks from base_time(time_offset)
  • Mean IR brightness temperature(ir_temp)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
  • Time offset from base_time(base_time)
  • Mean total water vapor amount along LOS path(vap)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Ambient temperature(tkair)
  • 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)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • 31.4 GHz sky signal(sky31)
  • Mixer kinetic (physical) temperature(tkxc)
  • Blackbody kinetic temperature(tkbb)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • 23.8 GHz sky signal(sky23)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Mean total liquid water amount along LOS path(liq)
  • 31.4 GHz Blackbody signal(bb31)
  • Noise diode mount temperature(tknd)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • 23.8 GHz Blackbody signal(bb23)
sgpmwrlosB6.a1:
  • Mean IR brightness temperature(ir_temp)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Ambient temperature(tkair)
  • 23.8 GHz Blackbody signal(bb23)
  • Time offset of tweaks from base_time(time_offset)
  • Blackbody kinetic temperature(tkbb)
  • Time offset from base_time(base_time)
  • Mean total liquid water amount along LOS path(liq)
  • Mean total water vapor amount along LOS path(vap)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • 31.4 GHz Blackbody signal(bb31)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
  • 23.8 GHz sky signal(sky23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Noise diode mount temperature(tknd)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Mixer kinetic (physical) temperature(tkxc)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 31.4 GHz sky signal(sky31)

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DQRID : D991102.1
Start DateStart TimeEnd DateEnd Time
03/05/1999000006/08/19991710
Subject:
SGP/MWR/B4 - power lines in field of view
DataStreams:sgpmwrlosB4.00, sgpmwrlosB4.a1, sgpmwrlosB4.b1, sgpmwrtipB4.00, sgpmwrtipB4.a1,
sgp5mwravgB4.c1
Description:
On 5 March 1999, the local power company installed transmission lines north 
of BF4 at an elevation angle of about 30 degrees from the MWR, in the field 
of view of tip scans. This affected the calibration of the instrument and 
the retrieved values of precipitable water vapor and liquid water path. 
On 8 June 1999 at 1710 GMT, the MWR was remotely rotated 90 degrees so the 
instrument would scan from east to west.
This reorientation has corrected the problem.
Measurements:sgpmwrlosB4.00:
  • Raw data stream - documentation not supported(Raw data stream - documentation not supported)
sgpmwrtipB4.00:
  • Raw data stream - documentation not supported(Raw data stream - documentation not supported)
sgpmwrlosB4.b1:
  • Mean total liquid water amount along LOS path(liq)
  • Mean total water vapor amount along LOS path(vap)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
sgpmwrtipB4.a1:
  • 23.8 GHz Blackbody signal(bb23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • 31.4 GHz Blackbody signal(bb31)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 23.8 GHz sky signal(tipsky23)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • 31.4 GHz sky signal(tipsky31)
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
sgp5mwravgB4.c1:
  • Averaged 23.8 GHz sky brightness temperature(23tbsky)
  • Standard deviation about the mean for the 23.8 GHz sky brightness temperature(tbsky23_sdev)
  • Standard deviation about the mean for the total liquid water amount(liq_sdev)
  • Mean total water vapor amount along LOS path(vap)
  • Standard deviation about the mean for the 31.4 GHz sky brightness temperature(tbsky31_sdev)
  • Mean total liquid water amount along LOS path(liq)
  • Standard deviation about the mean for the total water vapor amount(vap_sdev)
  • Averaged 31.4 GHz sky brightness temperature(31tbsky)
sgpmwrlosB4.a1:
  • Mean total liquid water amount along LOS path(liq)
  • Mean total water vapor amount along LOS path(vap)

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END OF DATA