FKB/RWP/M1 - Chaff released in Murg Valley

As part of the research activities associated with the COPS field campaign, the research 
center at Karlsruhe released aluminum chaff (2.5 cm in length) in the Murg Valley in order 
to study atmospheric diffusion.  It is possible that some of this chaff drifted over the 
AMF site and thus may have influenced the radar observations (as spurious echos).

• Raw data stream - documentation not supported(raw)

• Height of Center of First Range Gate(rgf)
• Time Domain Integration Time(tditime)
• Spectral Width: vert velocity(specw)
• Dummy altitude for Zeb(alt)
• Vertical FFT Bandwidth(vband)
• Signal to Noise Ratio of the RASS Signal(snr)
• Time offset of tweaks from base_time(time_offset)
• Oblique FFT Bandwidth(oband)
• Sample Rate(sampr)
• Number of Pulse Code Bits(pcbits)
• Height Index(range_gate)
• time(time)
• Range Gate Spacing(rgs)
• Pulse Length(plen)
• Number of valid heights(nheight)
• Individual Spectrum Integration Time(sitime)
• 1000 * log10(noise signal level: vert vel)(noise)
• lat(lat)
• Mean atmospheric vertical velocity(mdf)
• Beam Azimuth Angle(beam_azimuth)
• Height of Center of Last Range Gate(rgl)
• Ave Time per Average Spectra. Also known as dwell.(spcavetime)
• Radial Velocity Spectral Resolution(vsr)
• Array of heights for each sample time(height_t)
• Beam Elevation Angle(beam_elevation)
• Rx Bandwidth Switch Code(bswitch)
• Number of Coherent Samples/spectral point(ncoh)
• lon(lon)
• Number of Individual Spectra/Average Spectrum(nspc)
• base time(base_time)
• Delay Time to 1st Gate(dly)
• Pulse Repetition Frequency(prf)
• Interpulse Period(ipp)

• Array of heights for each sample time(height_p)
• Number of values that passed consensus, beam 2(ncns2)
• Time Domain Integration Time(tditime)
• Number of values that passed consensus, beam 0(ncns0)
• Number of Individual Spectra/Average Spectrum(nspc)
• Signal to Noise Ratio, Beam 3(snr3)
• U-component(u_wind)
• V-component(v_wind)
• Power offset(power)
• Number of Coherent Samples/spectral point(ncoh)
• Number of values that passed consensus, beam 1(ncns1)
• Number of Values Required for Consensus, Beam 4(nrcns4)
• Beam 4 radial wind speed(vel4)
• Horizontal wind speed(spd)
• Ave snr*10 level, Beam 2(snr2)
• Pulse Repetition Frequency(prf)
• Elevation angle of Beam 1 for WINDS data(elevation1)
• Signal to Noise Ratio, Beam 4(snr4)
• Sample Rate(sampr)
• Number of Pulse Code Bits(pcbits)
• Interpulse Period(ipp)
• Vertical FFT Bandwidth(vband)
• Elevation angle of Beam 0 for WINDS data(elevation0)
• Horizontal wind direction(dir)
• lat(lat)
• time(time)
• Number of spectra/ave int, Beam 1(nrec1)
• Number of spectra/ave int, Beam 2(nrec2)
• Average Interval(avgint)
• Height of Center of Last Range Gate(rgl)
• Rx Bandwidth Switch Code(bswitch)
• Number of Values Required for Consensus, Beam 2(nrcns2)
• lon(lon)
• Number of valid heights(nheight)
• base time(base_time)
• Number of Values Required for Consensus, Beam 0(nrcns0)
• Azimuth of Beam 2(azimuth2)
• Elevation angle of Beam 4 for WINDS data(elevation4)
• Ave Time per Average Spectra.(spcavetim)
• Beam 2 radial wind speed(vel2)
• Beam 3 radial wind speed(vel3)
• Individual Spectrum Integration Time(sitime)
• Range Gate Spacing(rgs)
• Azimuth of Beam 1(azimuth1)
• copolar signal to noise ratio(snr1)
• Number of Values Required for Consensus, Beam 1(nrcns1)
• Pulse Length(plen)
• Time offset of tweaks from base_time(time_offset)
• Number of Values Required for Consensus, Beam 3(nrcns3)
• Height Index(range_gate)
• Number of spectra/ave int, Beam 3(nrec3)
• Oblique Velocity Spectral Resolution(ovsr)
• Number of values that passed consensus, beam 4(ncns4)
• Oblique FFT Bandwidth(oband)
• Signal to Noise Ratio, Beam 0(snr0)
• Height of Center of First Range Gate(rgf)
• Number of spectra/ave int, Beam 4(nrec4)
• Azimuth of Beam 0(azimuth0)
• Number of values that passed consensus, beam 3(ncns3)
• Azimuth of Beam 3 for WINDS data(azimuth3)
• Delay Time to 1st Gate(dly)
• Vertical Velocity Spectral Resolution(vvsr)
• Beam 1 radial wind speed(vel1)
• Number of spectra/ave int, Beam 0(nrec0)
• Elevation angle of Beam 2 for WINDS data(elevation2)
• Beam 0 radial wind speed(vel0)
• Azimuth of Beam 4 for WINDS data(azimuth4)
• Dummy altitude for Zeb(alt)
• Elevation angle of Beam 3 for WINDS data(elevation3)

• Raw data stream - documentation not supported(raw)

• Number of Coherent Samples/spectral point(ncoh)
• lon(lon)
• Dummy altitude for Zeb(alt)
• Beam Azimuth Angle(beam_azimuth)
• Radial Velocity Spectral Resolution(vsr)
• Time Domain Integration Time(tditime)
• lat(lat)
• Rx Bandwidth Switch Code(bswitch)
• Spectral Data (signal strength/freq int)(spc_amp)
• Vertical FFT Bandwidth(vband)
• Sample Rate(sampr)
• Beam Elevation Angle(beam_elevation)
• Range Gate Spacing(rgs)
• Ave Time per Average Spectra.(spcavetim)
• Number of valid heights(nheight)
• Oblique FFT Bandwidth(oband)
• Pulse Repetition Frequency(prf)
• Height Index(range_gate)
• Number of Individual Spectra/Average Spectrum(nspc)
• Pulse Length(plen)
• Array of heights for each sample time(height_t)
• time(time)
• Height of Center of Last Range Gate(rgl)
• Particle radius at logarithmic center of bin(bins)
• Individual Spectrum Integration Time(sitime)
• base time(base_time)
• Number of Pulse Code Bits(pcbits)
• Interpulse Period(ipp)
• Delay Time to 1st Gate(dly)
• Height of Center of First Range Gate(rgf)
• Time offset of tweaks from base_time(time_offset)

FKB/SONDE/M1 - RH values may be slightly overcorrected.

The desiccant in the GC25 ground check set began to lose efficiency at the beginning of 
this time period.  Prior to 9/11/2007 the radiosonde RH readings while in the GC25 (assumed 
RH=0%) were below 1%RH.  The RH readings began to exceed 1%RH on 9/11/2007 and increased 
more or less exponentially to 2.3% RH by the end of 9/18/2007.  The desiccant was 
changed on 9/19/2007 and the radiosonde RH values while in the GC25 again dropped within the 
acceptable limit (< 0.5%RH, in fact).

Because the value obtained from the radiosonde while in the GC25 is subtracted from the 
subsequent RH values as part of the ground check procedure, it is likely that soundings 
done late in this period may be biased low by no more than 2%RH.  The exact amount of the 
correction applied is included in the netCDF header of each file.

• Relative humidity inside the instrument enclosure(rh)
• Surface dew point temperature(dp)