Data Quality Reports for Session: 117464 User: heather1mo Completed: 02/11/2009


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D060209.2SGP/RUC/X1 - Subsetting RUC-40sgpallruc40hybrX1.c1, sgpallruc40isobX1.c1
D060209.3SGP/RUC/X1 - Subsetting RUC-40sgpallruc40isobX1.c1


DQRID : D060209.2
Start DateStart TimeEnd DateEnd Time
12/05/1998000004/16/20022359
Subject:
SGP/RUC/X1 - Subsetting RUC-40
DataStreams:sgpallruc40hybrX1.c1, sgpallruc40isobX1.c1
Description:
Users who would like access to subsetted RUC-40 data products similar to those products 
currently available for RUC-20 can use NCO utilities to create subsets from the 
"sgpallruc40" data products.  Below is one method that can be used. This is also mentioned in the 
FAQ on the ARM RUC description page at: http://www.arm.gov/xds/static/ruc.stm
--------------------------------------------------------------

Question: How can I create subsetted RUC 40 data similar to the RUC 20 data currently 
available at the Archive?

Currently, the RUC 40 netCDF data available at the archive are the full area, hourly files 
(sgpallruc40isobX1.c1 and sgpallruc40hybrX1.c1). Using the netCDF Operator (NCO) 
utilities, it is easy to produce subsetted, daily files similar to the RUC 20 subsets available 
(sgpruc20hybrX1.c1 and sgpruc20isobX1.c1).

The NCO utilities can be found at http://nco.sourceforge.net/
Using the ncks (NCO "kitchen sink") command, you can subset the ruc data as follows:

ncks -d nx,, -d ny,,  

Note: xmin,xmax,ymin,ymax are index ranges.

For example to subset around the SGP site use the following index values
for latitudes 34.209 to 38.928 and longitudes -99.798 to -95.
xmin = 71
xmax = 82
ymin = 40
ymax = 53


ncks -d nx,71,82 -d ny,40,53 sgpallruc40isobX1.c1.20000314.130000.cdf 
sgpruc40isobX1.c1.subset.cdf

Here is a sample C-Shell script for subsetting the ruc40 and using the NCO command ncrcat 
to concatenate the hourly subsetted files into a ruc 40 subsetted daily file similar to 
the sgpruc20isobX1.c1 files.

#!/bin/csh
# This script subsets the RUC 40 isobaric files
# and then concatenates hourly files into 1 daily file
# usage: subset_ruc40.csh 
#   where yyyymmdd is the date of the files to subset
#   and concatenate. Ex. 20000314 (yyyy=2000,mm=03, dd=14)
# Example: subset_ruc40.csh 20000314
# xmin,xmax,ymin,ymax are indices for
# lat = 34.209, 38.928, lon = -99.798, -95
set xmin = 71
set xmax = 82
set ymin = 40
set ymax = 53
set date = $1
foreach file (sgpallruc40isob*$date*)
  ncks -d nx,${xmin},${xmax} -d ny,${ymin},${ymax} $file $file.sub
end
ncrcat -h sgpallruc40isob*$date*sub sgpruc40isobX1.c1.$date.000000.cdf
rm *.sub
exit

For more information on the NCO commands ncks and ncrcat see:
http://nco.sourceforge.net/nco.html#ncks-netCDF-Kitchen-Sink
http://nco.sourceforge.net/nco.html#ncrcat-netCDF-Record-Concatenator

Also other commands for subsetting and analysis of netCDF data can be found at 
http://www.arm.gov/data/tools.stm
Measurements:sgpallruc40isobX1.c1:
  • Earth Surface Height(heightsrf)
  • Snow Depth(snowdepth)
  • Lifted Index(indexlifted)
  • Sub-surface Runoff(runoffsubsrf)
  • Pressure at Freezing Level(pressurefrz)
  • Dew Point Temperature (2 m fixed height)(tempdewpt2m)
  • Potential Temperature (2 m fixed height)(temppot2m)
  • Relative Humidity (p grid)(rhp)
  • Resolvable Scale Precipitation (Accumulated)(precipresolvedacc)
  • Potential Temperature at Tropopause(temppottrop)
  • Sub-grid Scale Precipitation (3 hr)(precipsubgrid3hr)
  • 2 meter temperature(temp2m)
  • east longitude(longitude)
  • Gust Wind Speed(windgustspeed)
  • north latitude(latitude)
  • Environmental Temperature (m grid)(tempm)
  • Geopotential Height at Freezing Level(heightgpfrz)
  • v-Component of Wind (p grid)(windvp)
  • Categorical Ice Pellets(caticepellets)
  • v-Component of Wind at Maximum Wind Level(windvwindmax)
  • Relative Humidity at Freezing Level(rhfrz)
  • Pressure at Maximum Wind Level(pressurewindmax)
  • Pressure at Tropopause(pressuretrop)
  • Altitude(altitude)
  • Geopotential Height (p grid)(heightgpp)
  • MAPS Pressure at Mean Sea Level(pressuremsl)
  • Vertical Velocity (m grid)(velocitywm)
  • Pressure at Top Freezing Level(pressurefrztop)
  • base time(base_time)
  • Altimeter Setting(altimeter)
  • u-Component of Wind at Tropopause(windutrop)
  • Sub-grid Scale Precipitation (Accumulated)(precipsubgridacc)
  • Soil Moisture Availability(moistsoilavail)
  • Surface Runoff Accumulated(runoffsrfacc)
  • Categorical Snow(catsnow)
  • Convective Cloud Top Height(heightcldtopconv)
  • Precipitable water vapr, from MWR (through lssonde)(pwv)
  • Snow Accumulation over 3-hr(snowaccum)
  • Convective Inhibition(cinhib)
  • Relative Humidity (2 m fixed height)(rh2m)
  • u-Component of Wind at Maximum Wind Level(winduwindmax)
  • Convective Available Potential Energy(cape)
  • Maximum Equivalent Potential Temperature Pressure(pressuretempeqpotmax)
  • Pressure Tendency (3-hr)(pressuretend)
  • v-Component of Storm Motion(stormmotionv)
  • Environmental Temperature (p grid)(tempp)
  • Precipitation Rate at Surface(preciprate)
  • Vertical visibility(visibility)
  • Cloud Top Height(heightcldtop)
  • u-Component of Storm Motion(stormmotionu)
  • Equilibrium Level Height(heightequillevel)
  • Planetary Boundary Height(heightpbl)
  • Vertical Velocity (p grid)(velocitywp)
  • Storm-Relative Helicity(stormrelhelicity)
  • Water Equivalent Snow Depth(snowdepthwatereq)
  • Best Lifted Index(indexliftedbest)
  • v-Component of Wind at Tropopause(windvtrop)
  • Earth Surface Pressure(pressuresrf)
  • Equivalent Potential temperature(tempeqpot)
  • Categorical Rain(catrain)
  • u-Component of Wind (m grid)(windum)
  • 10 meter component v-wind(windv10m)
  • Pressure Intervals (30-0,60-30,90-60,120-90,150-120,180-150) of the m grid(pressuremgrid)
  • Pressures of the p grid(pressurepgrid)
  • v-Component of Wind (m grid)(windvm)
  • Time offset of tweaks from base_time(time_offset)
  • u-Component of Wind (p grid)(windup)
  • Relative Humidity at Top Freezing Level(rhfrztop)
  • Relative Humidity (m grid)(rhm)
  • Geopotential Height at Top Freezing Level(heightgpfrztop)
  • 10 meter component u-wind(windu10m)
  • Categorical Freezing Rain(catfreezerain)
  • Dew Point Depression (2 m fixed height)(tempdewptdep2m)
  • forecast period(forecast_period)
  • Resolvable Scale Precipitation (3 hr)(precipresolved3hr)
  • Specific Humidity (2 m fixed height)(sh2m)
  • Cloud Base Height(heightcldbase)

sgpallruc40hybrX1.c1:
  • Mixing Ratio of Snow (hybrid-b grid)(mxratiosnow)
  • Plant Canopy Surface Water(watercanopy)
  • Net Shortwave Irradiance at Surface(fluxswnetsrf)
  • Turbulent Kinetic Energy (hybrid-b grid)(tketurb)
  • Pressure at Tropopause(pressuretrop)
  • Surface,Sub-surface Soil Temperature(tempsoilsrfsubsrf)
  • Mixing Ratio of Rain Water (hybrid-b grid)(mxratiorain)
  • base time(base_time)
  • north latitude(latitude)
  • atmospheric pressure at mean sea level and at tropopause (NGM250 predicted)(pressure)
  • Precipitable water vapr, from MWR (through lssonde)(pwv)
  • Precipitation Rate at Surface(preciprate)
  • u-Component of Wind at Tropopause(windutrop)
  • Relative humidity inside the instrument enclosure(rh)
  • Surface,Sub-surface Soil Volumetric Moisture(moistsoilvolumesrfsubsrf)
  • Convective Inhibition(cinhib)
  • Mixing Ratio of Graupel (hybrid-b grid)(mxratiograupel)
  • Sub-surface Runoff(runoffsubsrf)
  • Mixing Ratio of Cloud Water (hybrid-b grid)(mxratioliquid)
  • Mixing Ratio of Ice Water (hybrid-b grid)(mxratioice)
  • Potential Temperature at Tropopause(temppottrop)
  • Net Longwave Irradiance at Surface(fluxlwnetsrf)
  • Snow Accumulation over 3-hr(snowaccum)
  • v-Component of Wind at Tropopause(windvtrop)
  • Rate of Water Dropping from Canopy to Ground(dropwaterratesrf)
  • v-Component of Wind (hybrid-b grid)(windv)
  • forecast period(forecast_period)
  • Sub-grid Scale Precipitation at Surface(precipsubgrid)
  • MAPS Pressure at Mean Sea Level(pressuremsl)
  • Snow Temperature at Snow or Top Soil Level(snowtemp)
  • Snow Depth(snowdepth)
  • Virtual Potential Temperature (hybrid-b grid)(tempvirtpot)
  • Surface,Sub-surface Soil Moisture Content(moistsoilcontentsrfsubsrf)
  • Sensible Heat Flux at Surface(fluxsensiblesrf)
  • Mixing Ratio of Water Vapor (hybrid-b grid)(mxratiovapor)
  • u-Component of Wind (hybrid-b grid)(windu)
  • east longitude(longitude)
  • Latent Heat Flux at Surface(fluxlatentsrf)
  • Time offset of tweaks from base_time(time_offset)
  • Water Condensation Rate near Surface(condensewaterratesrf)
  • Altitude(altitude)
  • Evapotranspiration Flux near Surface(fluxevaptranssrf)
  • Pressure Vertical Velocity (hybrid-b grid)(velocityw)
  • Number Concentration of Ice Particles (hybrid-b grid)(ndensice)
  • Resolvable Scale Precipitation at Surface(precipresolved)
  • Surface Runoff(runoffsrf)
  • Evaporation of Canopy Water near Surface(evapcanopysrf)
  • Geopotential Height (hybrid-b grid)(heightgp)
  • Convective Available Potential Energy(cape)
  • Beam 0 Temperature(temp)
  • Evaporation from Bare Soil at Surface(evapsoilsrf)
  • Surface/Sub-surface Heights(heightss)


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DQRID : D060209.3
Start DateStart TimeEnd DateEnd Time
04/20/1998000004/16/20022359
Subject:
SGP/RUC/X1 - Subsetting RUC-40
DataStreams:sgpallruc40isobX1.c1
Description:
As per ECR-00405, some users would to have access to subsetted RUC-40 data products 
similar to those products currently available for RUC-20.
Measurements:sgpallruc40isobX1.c1:
  • Earth Surface Height(heightsrf)
  • Precipitable water vapr, from MWR (through lssonde)(pwv)
  • Snow Accumulation over 3-hr(snowaccum)
  • Convective Inhibition(cinhib)
  • Relative Humidity (2 m fixed height)(rh2m)
  • Snow Depth(snowdepth)
  • Lifted Index(indexlifted)
  • u-Component of Wind at Maximum Wind Level(winduwindmax)
  • Sub-surface Runoff(runoffsubsrf)
  • Convective Available Potential Energy(cape)
  • Maximum Equivalent Potential Temperature Pressure(pressuretempeqpotmax)
  • Pressure Tendency (3-hr)(pressuretend)
  • v-Component of Storm Motion(stormmotionv)
  • Pressure at Freezing Level(pressurefrz)
  • Dew Point Temperature (2 m fixed height)(tempdewpt2m)
  • Environmental Temperature (p grid)(tempp)
  • Precipitation Rate at Surface(preciprate)
  • Potential Temperature (2 m fixed height)(temppot2m)
  • Relative Humidity (p grid)(rhp)
  • Resolvable Scale Precipitation (Accumulated)(precipresolvedacc)
  • Potential Temperature at Tropopause(temppottrop)
  • Vertical visibility(visibility)
  • Sub-grid Scale Precipitation (3 hr)(precipsubgrid3hr)
  • Cloud Top Height(heightcldtop)
  • u-Component of Storm Motion(stormmotionu)
  • Equilibrium Level Height(heightequillevel)
  • 2 meter temperature(temp2m)
  • east longitude(longitude)
  • Gust Wind Speed(windgustspeed)
  • Planetary Boundary Height(heightpbl)
  • north latitude(latitude)
  • Vertical Velocity (p grid)(velocitywp)
  • Storm-Relative Helicity(stormrelhelicity)
  • Environmental Temperature (m grid)(tempm)
  • Geopotential Height at Freezing Level(heightgpfrz)
  • Categorical Ice Pellets(caticepellets)
  • v-Component of Wind (p grid)(windvp)
  • Water Equivalent Snow Depth(snowdepthwatereq)
  • Best Lifted Index(indexliftedbest)
  • v-Component of Wind at Maximum Wind Level(windvwindmax)
  • Relative Humidity at Freezing Level(rhfrz)
  • Pressure at Maximum Wind Level(pressurewindmax)
  • v-Component of Wind at Tropopause(windvtrop)
  • Earth Surface Pressure(pressuresrf)
  • Equivalent Potential temperature(tempeqpot)
  • Categorical Rain(catrain)
  • Pressure at Tropopause(pressuretrop)
  • u-Component of Wind (m grid)(windum)
  • 10 meter component v-wind(windv10m)
  • Pressure Intervals (30-0,60-30,90-60,120-90,150-120,180-150) of the m grid(pressuremgrid)
  • Altitude(altitude)
  • Pressures of the p grid(pressurepgrid)
  • v-Component of Wind (m grid)(windvm)
  • Time offset of tweaks from base_time(time_offset)
  • u-Component of Wind (p grid)(windup)
  • Geopotential Height (p grid)(heightgpp)
  • MAPS Pressure at Mean Sea Level(pressuremsl)
  • Relative Humidity at Top Freezing Level(rhfrztop)
  • Vertical Velocity (m grid)(velocitywm)
  • Relative Humidity (m grid)(rhm)
  • Geopotential Height at Top Freezing Level(heightgpfrztop)
  • 10 meter component u-wind(windu10m)
  • Categorical Freezing Rain(catfreezerain)
  • Pressure at Top Freezing Level(pressurefrztop)
  • Dew Point Depression (2 m fixed height)(tempdewptdep2m)
  • base time(base_time)
  • forecast period(forecast_period)
  • Resolvable Scale Precipitation (3 hr)(precipresolved3hr)
  • Altimeter Setting(altimeter)
  • u-Component of Wind at Tropopause(windutrop)
  • Sub-grid Scale Precipitation (Accumulated)(precipsubgridacc)
  • Specific Humidity (2 m fixed height)(sh2m)
  • Soil Moisture Availability(moistsoilavail)
  • Surface Runoff Accumulated(runoffsrfacc)
  • Categorical Snow(catsnow)
  • Convective Cloud Top Height(heightcldtopconv)
  • Cloud Base Height(heightcldbase)


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