Datastream : MPLPOLFS

Micropulse Lidar (MPL) polarized, fast sampling: cloud base and top heights

Active Dates
2010.06.01 - 2014.04.13

Measurement Categories
Cloud Properties

Originating Instrument
Micropulse Lidar (MPL)

Measurements

Only measurements considered scientifically relevant are shown below by default.

Show all measurements

Measurement Units Variable
Altitude above mean sea level m alt
Background signal, copol data Counts/microsecond background_signal_co_pol ( time )
Background signal, cross pol data Counts/microsecond background_signal_cross_pol ( time )
Background signal standard deviation, copol data Counts/microsecond background_signal_std_co_pol ( time )
Background signal standard deviation, cross pol data Counts/microsecond background_signal_std_cross_pol ( time )
Base time in Epoch seconds since 1970-1-1 0:00:00 0:00 base_time
Dead time correction flag unitless dead_time_corrected ( time )
Deadtime correction factor unitless deadtime_correction ( num_deadtime_corr )
Laboratory measured counts used to calculate the deadtime correction samples counts/microsecond deadtime_correction_counts ( num_deadtime_corr )
Detector temperature C detector_temp ( time )
Energy output per pulse of transmitted laser beam at 532 nm (Doubled Nd-YLF) uJ energy_monitor ( time )
Bin number of first data. Tells where pretrigger timing ends and end of region for background data sampling unitless first_data_bin ( time )
Height above ground of the center of corresponding range_bin km height ( range_bins )
bin number number associated with zero height and time where laser transmit occurs. unitless laser_fire_bin ( time )
Laser temperature C laser_temp ( time )
North latitude degree_N lat
East longitude degree_E lon
Maximum altitude retrieved from multichannel scalar card. km max_altitude
MCS mode register unitless mcs_mode
Number of bins stored in data block count num_bins
Number of detector channels count num_channels
Overlap correction factor unitless overlap_correction ( num_overlap_corr )
Heights for overlap correction km overlap_correction_heights ( num_overlap_corr )
Polarization control enabled flag unitless polarization_control ( time )
Polarization control voltage setting volts polarization_control_voltage ( time )
Preliminary cloud base height above ground level km preliminary_cbh ( time )
Repetition rate, or Trigger Frequency of the laser Hz pulse_rep
Quality check results on field: Detector temperature unitless qc_detector_temp ( time )
Quality check results on field: Energy output per pulse of transmitted laser beam at 532 nm (Doubled Nd-YLF) unitless qc_energy_monitor ( time )
Quality check results on field: Laser temperature unitless qc_laser_temp ( time )
Quality check results on field: Preliminary cloud base height above ground level unitless qc_preliminary_cbh ( time )
Quality check results on field: Distance between initial range_bin and the laser flash unitless qc_range_offset ( time )
Quality check results on field: Telescope temperature unitless qc_scope_temp ( time )
Quality check results on field: Attenuated backscatter, copol unitless qc_signal_return_co_pol ( time )
Quality check results on field: Attenuated backscatter, cross pol unitless qc_signal_return_cross_pol ( time )
Quality check results on field: Time offset from midnight unitless qc_time ( time )
Distance from transceiver to center of corresponding range_bin km range ( range_bins )
Time in seconds for each range bin of multichannel scalar card. seconds range_bin_time ( time )
Width of range-bins calculated from range_bin_time km range_bin_width ( time )
Distance from leading edge of first range bin to the center of each bin. km range_bins ( range_bins )
Distance between initial range_bin and the laser flash km range_offset ( time )
Telescope temperature degC scope_temp ( time )
Number of laser pulses summed during averaging interval count shots_per_avg
Attenuated backscatter, copol Counts/microsecond signal_return_co_pol ( time, range_bins )
Attenuated backscatter, cross pol Counts/microsecond signal_return_cross_pol ( time, range_bins )
Time offset from midnight time ( time )
Time offset from base_time time_offset ( time )

Locations

Eastern North Atlantic
ENAC1Browse DataGraciosa Island, Azores, Portugal
North Slope Alaska
NSAC1Browse DataCentral Facility, Barrow AK
Southern Great Plains
SGPC1Browse DataCentral Facility, Lamont, OK
Tropical Western Pacific
TWPC1Browse DataCentral Facility, Manus I., PNG
TWPC3Browse DataCentral Facility, Darwin, Australia
ARM Mobile Facility
GANM1Browse DataGan Airport, Gan Island, Maldives
MAGM1Browse DataLos Angeles, CA to Honolulu, HI - container ship Horizon Spirit
MAOM1Browse DataManacapuru, Amazonas, Brazil; AMF1
OLIM1Browse DataOliktok Point, Alaska
PGHM1Browse DataARIES Observatory, Nainital, Uttarkhand, India
PVCM1Browse DataHighland Center, Cape Cod MA; AMF 1
SBSS1Browse DataSteamboat Springs CO, Thunderhead Lodge
TMPM1Browse DataU. of Helsinki Research Station (SMEAR II), Hyytiala, Finland; AMF2

Contact(s)

Richard Coulter
(630) 252-5833
rlcoulter@anl.gov

Brian Ermold
Developer
(509) 375-2277
brian.ermold@pnnl.gov

Timothy Martin
technical contact
(630) 252-8708
tjmartin@anl.gov