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Measurement : Cloud base height

For a given cloud or cloud layer, the lowest level of the atmosphere where cloud properties are detectable.

Categories
Cloud Properties

Instruments

The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes.

• ARM Instruments
  • BLC : Belfort Laser Ceilometer
  • MPL : Micropulse Lidar
  • MWRP : Microwave Radiometer Profiler
  • VCEIL : Vaisala Ceilometer
• External Instruments
  • NCEPGFS : National Centers for Environment Prediction Global Forecast System
  • NWSSURF : National Weather Service Surface Meteorology Data
  • RUC : Rapid Update Cycle Model Data
• Field Campaign Instruments
  • AERIPLUS-UWISC : AERIPLUS-University of Wisconsin
  • CO2LIDAR : Carbon Dioxide Doppler Lidar
  • CEIL-UMIAMI : Ceilometer(University of Miami)
  • CIR : Cloud Infrared Radiometer
  • IRSI : Infrared Sky Imager
  • MIRAI : JAMSTEC Research Vessel Mirai
  • MPL : Micropulse Lidar
  • MPL-AIR : Micropulse Lidar- Airborne
  • MWRP : Microwave Radiometer Profiler
  • LBTM-MINNIS : Minnis Cloud Products Using LBTM Algorithm
  • VISST : Minnis Cloud Products Using Visst Algorithm
  • RONBROWN : NOAA Research Vessel Ron Brown
  • NAWX : NRC Airborne W and X Band Radar
  • NWSSURF : National Weather Service Surface Meteorology Data
  • MPLNOR : Normalized Backscatter Profiles from the Micropulse Lidar
  • PARSL : PNNL's Atmospheric Remote Sensing Laboratory
  • MMCR94PSU : Penn State 94GHz MMCR
  • RLPROF : Raman LIDAR Vertical Profiles
  • VCEIL : Vaisala Ceilometer

Value-Added Products

• ARSCL : Active Remotely-Sensed Cloud Locations (Process)
  • MMCRMODE1ST200404151CLOTH : ARSCL: derived, MMCR Mode 1 ("stratus mode") moments, 20040415 version
  • MMCRMODE3GE200404141CLOTH : ARSCL: derived, MMCR Mode 3 ("general mode") moments, 20040415 version
  • MMCRMODE3GE200608161CLOTH : ARSCL: derived, MMCR Mode 3 ("general mode") moments (version 11/2006)
  • MMCRMODE4RO200712011CLOTH : ARSCL: derived, MMCR Mode 4 ("robust mode") moments, 20071201 version
  • MMCRMODE4RO200404141CLOTH : ARSCL: derived, MMCR Mode 4 ("robust mode") moments, 20040415 version
  • MMCRMODE1ST200309091CLOTH : ARSCL: derived, MMCR Mode 1 ("status mode") moments
  • MMCRMODE2CI200712011CLOTH : ARSCL: derived, MMCR Mode 2 ("cirrus mode") moments, 20071201 version
  • MMCRMODE3GE200606161CLOTH : ARSCL: derived, MMCR Mode 3 ("general mode") moments (version 6/2006)
  • MMCRMODE4PR200408121CLOTH : ARSCL: derived, MMCR Mode 4 ("precipitation mode") moments (8/04-5/05)
  • MMCRMODE1BL200408121CLOTH : ARSCL: derived, MMCR Mode 1 ("boundary layer mode") moments (8/04-5/05)
  • MMCRMODE4PR200608161CLOTH : ARSCL: derived, MMCR Mode 4 ("precipitation mode") moments (version 11/2006)
  • MMCRMODE1BL200608121CLOTH : ARSCL: derived, MMCR Mode 1 ("boundary layer mode") moments (version 11/2006)
  • MMCRMODE1BL200712011CLOTH : ARSCL: derived, MMCR Mode 1 ("boundary layer mode") moments, 20071201 version
  • MMCRMODE1BL200606161CLOTH : ARSCL: derived, MMCR Mode 1 ("boundary layer mode") moments (version 6/2006)
  • MMCRMODE4PR200606161CLOTH : ARSCL: derived, MMCR Mode 4 ("precipitation mode") moments (version 6/2006)
  • MMCRMODE4PR200511041CLOTH : ARSCL: derived, MMCR Mode 4 ("precipitation mode") moments (since 11/2005)
  • MMCRMODE1BL200511041CLOTH : ARSCL: derived, MMCR Mode 1 ("boundary layer mode") moments (since 11/2005)
  • MMCRMODE2CI200404141CLOTH : ARSCL: derived, MMCR Mode 2 ("cirrus mode") moments, 20040415 version
  • MMCRMODE2CI200608161CLOTH : ARSCL: derived, MMCR Mode 2 ("cirrus mode") moments (version 11/2006)
  • MMCRMODE3GE200511041CLOTH : ARSCL: derived, MMCR Mode 3 ("general mode") moments (since 11/2005)
  • MMCRMODE2CI200309091CLOTH : ARSCL: derived, MMCR Mode 2 ("cirrus mode") moments
  • MMCRMODE3GE200309091CLOTH : ARSCL: derived, MMCR Mode 3 ("general mode") moments
  • MMCRMODE6P1200408121CLOTH : ARSCL: derived, MMCR Mode 6 ("cross-polarized mode") moments
  • MMCRMODE5P0200408121CLOTH : ARSCL: derived, MMCR Mode 5 ("co-polarized mode") moments
  • ARSCL1CLOTH : ARSCL: multiple outputs from first Clothiaux algorithms on BLC, MPL, MMCR
  • ARSCLCBH1CLOTH : ARSCL: cloud base height from first Clothiaux algorithms on BLC, MPL, MMCR
  • MMCRMODE2CI200408121CLOTH : ARSCL: derived, MMCR Mode 2 ("cirrus mode") moments (8/04-5/05)
  • RHBARSCL1CLOTH : ARSCL: multiple outputs from first Clothiaux algorithms, Ron Brown ship, Nauru
  • MMCRMODE2CI200606161CLOTH : ARSCL: derived, MMCR Mode 2 ("cirrus mode") moments (version 6/2006)
  • MMCRMODE4RO200309091CLOTH : ARSCL: derived, MMCR Mode 4 ("robust mode") moments
  • MMCRMODE2CI200511041CLOTH : ARSCL: derived, MMCR Mode 2 ("cirrus mode") moments (since 11/2005)
  • MMCRMODE3GE200408121CLOTH : ARSCL: derived, MMCR Mode 3 ("general mode") moments (8/04-5/05)
  • MMCRMODE3GE200712011CLOTH :
• MPLAVG : MPL: data averaged to fixed 30 second interval, e.g. for polarized data (Process)
  • MPLPOLAVG : Micropulse Lidar polarized (MPLPOL) data averaged to fixed 30 second interval
• MPLCBH : Cloud Base Height from MPL Using Scott-Spinhirne Algorithm (Process)
  • MPLCBH1SCOTT : MPL: cloud base heights using the Scott/Spinhirne algorithm
• MPLNOR : Normalized Backscatter Profiles from the Micropulse Lidar (Process)
  • MPLNOR1CAMP : MPL: backscatter profiles normalized and cloud detection routine applied.
• RLPROF : Raman LIDAR Vertical Profiles (Process)
  • RLPROFMERGE1TURN : Merged analog and photon counting profiles used as input for other RLPROF VAPs
  • 10RLPROFDEP1TURN : Raman LIDAR (RL): depolarization profiles and single layer cloud optical depths
  • 10RLPROFBE1TURN : Raman LIDAR (RL): Best-estimate state of the atmos. profiles from RL & AERI+GOES retrievals

Datastreams

• BLC : Belfort Laser Ceilometer Datastreams
  • BLC : Belfort Laser Ceilometer (BLC): 30-s avgs of cloud base heights at up to 3 levels
  • BLCPROF : Belfort Laser Ceilometer (BLC): profiles
• MPL : Micropulse Lidar Datastreams
  • MPLPS : Micropulse Lidar: polarization of atmosphere
  • MPLPOL : Micropulse Lidar (MPL) polarized: cloud base and top heights
  • MPL : Micropulse Lidar (MPL): cloud base and top heights
• MWRP : Microwave Radiometer Profiler Datastreams
  • MWRP : Microwave Radiometer data (MWR Profiles - QME), water vapor, temp, cloud liquid water, precip water retrievals
• NCEPGFS : National Centers for Environment Prediction Global Forecast System Datastreams
  • NCEPGFSMANSFC : NCEP GFS: surface variables at Manus
  • NCEPGFSATKSFC : NCEP GFS: surface variables at Atqasuk
  • NCEPGFSBRWSFC : NCEP GFS: surface variables at Barrow
  • NCEPGFSNAUSFC : NCEP GFS: flux variables at Nauru
  • NCEPGFSSFC : NCEP GFS: surface variables at SGP/PYE/NIM
  • NCEPGFSDARSFC : NCEP GFS: surface variables at Darwin
• NWSSURF : National Weather Service Surface Meteorology Data Datastreams
  • 60NWSSURF : National Weather Service (NWS) surface meteorology data: 60-minute averages
• RUC : Rapid Update Cycle Model Data Datastreams
  • ALLRUC20ISOB : Rapid Update Cycle (RUC) model: isobaric main analysis data, 20-km resolution
  • RUC20ISOB : Rapid Update Cycle (RUC) model: daily isobaric analysis data, 20 km resolution
  • ALLRUC40ISOB : Rapid Update Cycle (RUC) model: isobaric main analysis data, 40-km resolution
  • SYNRUC20ISOB : Rapid Update Cycle (RUC) model: isobaric output, 20 km grid, averaged to 40 km
• VCEIL : Vaisala Ceilometer Datastreams
  • VCEIL25K : Vaisala Ceilometer (VCEIL): cloud base heights, 25,000 feet max range