Datastream : VCEIL25K

Vaisala Ceilometer (VCEIL): cloud base heights, 25,000 feet max range

Active Dates
1996.10.11 - 2014.04.16

Measurement Categories
Aerosols, Cloud Properties

Originating Instrument
Vaisala Ceilometer (VCEIL)

Measurements

Only measurements considered scientifically relevant are shown below by default.

Show all measurements

Measurement Units Variable
Altitude above mean sea level m alt
Altitude of highest signal m alt_highest_signal ( time )
Background light mV background_light ( time )
Backscatter 1/(srad*km*10000) backscatter ( time, range )
Base time in Epoch seconds since 1970-1-1 0:00:00 0:00 base_time
Detection status unitless detection_status ( time )
Lowest cloud base height detected m first_cbh ( time )
Laser pulse energy % laser_pulse_energy ( time )
Laser temperature degC laser_temperature ( time )
North latitude degree_N lat
East longitude degree_E lon
Instrument measurement parameters unitless measurement_parameters ( time, string_len )
Quality check results on field: Altitude of highest signal unitless qc_alt_highest_signal ( time )
Quality check results on field: Background light unitless qc_background_light ( time )
Quality check results on field: Detection status unitless qc_detection_status ( time )
Quality check results on field: Lowest cloud base height detected unitless qc_first_cbh ( time )
Quality check results on field: Laser pulse energy unitless qc_laser_pulse_energy ( time )
Quality check results on field: Laser temperature unitless qc_laser_temperature ( time )
Quality check results on field: Receiver sensitivity unitless qc_receiver_sensitivity ( time )
Quality check results on field: Second lowest cloud base height unitless qc_second_cbh ( time )
Quality check results on field: SUM of detected and normalized backscatter unitless qc_sum_backscatter ( time )
Quality check results on field: Third cloud base height unitless qc_third_cbh ( time )
Quality check results on field: Tilt angle unitless qc_tilt_angle ( time )
Quality check results on field: Time offset from midnight unitless qc_time ( time )
Quality check results on field: Vertical visibility unitless qc_vertical_visibility ( time )
Quality check results on field: Window contamination unitless qc_window_contamination ( time )
Quality check results on field: Window transmission estimate unitless qc_window_transmission ( time )
Distance to the center of the corresponding range bin m range ( range )
Receiver sensitivity % receiver_sensitivity ( time )
Second lowest cloud base height m second_cbh ( time )
Ceilometer status indicator unitless status_flag ( time )
Warning and alarm status bits unitless status_string ( time, string_len )
SUM of detected and normalized backscatter 1/srad sum_backscatter ( time )
Third cloud base height m third_cbh ( time )
Tilt angle degree tilt_angle ( time )
Time offset from midnight time ( time )
Time offset from base_time time_offset ( time )
Vertical visibility m vertical_visibility ( time )
Window contamination mV window_contamination ( time )
Window transmission estimate % window_transmission ( time )

Locations

Eastern North Atlantic
ENAC1Browse DataGraciosa Island, Azores, Portugal
North Slope Alaska
NSAC1Browse DataCentral Facility, Barrow AK
NSAC2Browse DataCentral Facility, Atqasuk AK
Southern Great Plains
SGPB1Browse DataHillsboro, KS (Boundary)
SGPB4Browse DataVici, OK (Boundary)
SGPB5Browse DataMorris, OK (Boundary)
SGPB6Browse DataPurcell, OK
SGPC1Browse DataCentral Facility, Lamont, OK
Tropical Western Pacific
TWPC1Browse DataCentral Facility, Manus I., PNG
TWPC2Browse DataCentral Facility, Nauru Island
TWPC3Browse DataCentral Facility, Darwin, Australia
ARM Mobile Facility
FKBM1Browse DataBlack Forest, Germany
GANM1Browse DataGan Airport, Gan Island, Maldives
GRWM1Browse DataGraciosa Island, Azores, Portugal
HFEM1Browse DataShouxian, Anhui, China
HFES1Browse DataTai Hu (lake), Zhejiang/Jiangsu, China; Supplemental
MAGM1Browse DataLos Angeles, CA to Honolulu, HI - container ship Horizon Spirit
MAOM1Browse DataManacapuru, Amazonas, Brazil; AMF1
NIMM1Browse DataNiamey, Niger
OLIM1Browse DataOliktok Point, Alaska
PGHM1Browse DataARIES Observatory, Nainital, Uttarkhand, India
PVCM1Browse DataHighland Center, Cape Cod MA; AMF 1
PYEM1Browse DataPoint Reyes, CA
SBSM1Browse DataSteamboat Springs CO, Valley Site
TMPM1Browse DataU. of Helsinki Research Station (SMEAR II), Hyytiala, Finland; AMF2

Contact(s)

Victor Morris
(509) 372-6144
victor.morris@pnnl.gov

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