Datastream : VDIS
Video Disdrometer Drop Size Distribution
Active Dates
2011.02.28 - 2012.10.07
Measurement Categories
Atmospheric State, Cloud Properties
Originating Instrument
Video Disdrometer (VDIS)
Measurements
Only measurements considered scientifically relevant are shown below by default.
Show all measurements
| Measurement | Units | Variable |
|---|---|---|
| Altitude above mean sea level | m | alt |
| Base time in Epoch | seconds since 1970-1-1 0:00:00 0:00 | base_time |
| Diameter of largest drop observed | mm | diameter_max ( time ) |
| Diameter of smallest drop observed | mm | diameter_min ( time ) |
| Center diameter of drop size bin | mm | drop_diameter ( drop_diameter ) |
| Estimated Marshall-Palmer intercept parameter | 1/m^3mm | intercept_parameter ( time ) |
| North latitude | degree_N | lat |
| Liquid water content | mm^3/m^3 | liquid_water_content ( time ) |
| Liquid water distribution mean, assuming an ideal Marshall-Palmer type distribution | mm | liquid_water_distribution_mean ( time ) |
| East longitude | degree_E | lon |
| Median volume diameter, assuming an ideal Marshall-Palmer type distribution | mm | median_volume_diameter ( time ) |
| Moment 1 from the observed distribution | mm/m^3 | moment1 ( time ) |
| Moment 2 from the observed distribution | mm^2/m^3 | moment2 ( time ) |
| Moment 3 from the observed distribution | mm^3/m^3 | moment3 ( time ) |
| Moment 4 from the observed distribution | mm^4/m^3 | moment4 ( time ) |
| Moment 5 from the observed distribution | mm^5/m^3 | moment5 ( time ) |
| Moment 6 from the observed distribution | mm^6/m^3 | moment6 ( time ) |
| Number density | 1(m^3 mm) | num_density ( time, drop_diameter ) |
| Number of drops per bin | unitless | num_drops ( time, drop_diameter ) |
| Quality check results on field: Diameter of largest drop observed | unitless | qc_diameter_max ( time ) |
| Quality check results on field: Diameter of smallest drop observed | unitless | qc_diameter_min ( time ) |
| Quality check results on field: Estimated Marshall-Palmer intercept parameter | unitless | qc_intercept_parameter ( time ) |
| Quality check results on field: Liquid water content | unitless | qc_liquid_water_content ( time ) |
| Quality check results on field: Liquid water distribution mean, assuming an ideal Marshall-Palmer type distribution | unitless | qc_liquid_water_distribution_mean ( time ) |
| Quality check results on field: Median volume diameter, assuming an ideal Marshall-Palmer type distribution | unitless | qc_median_volume_diameter ( time ) |
| Quality check results on field: Number density | unitless | qc_num_density ( time, drop_diameter ) |
| Quality check results on field: Number of drops per bin | unitless | qc_num_drops ( time, drop_diameter ) |
| Quality check results on field: Rain amount | unitless | qc_rain_amount ( time ) |
| Quality check results on field: Rain rate | unitless | qc_rain_rate ( time ) |
| Quality check results on field: Estimated Marshall-Palmer slope parameter | unitless | qc_slope_parameter ( time ) |
| Quality check results on field: Sum of num_drops | unitless | qc_total_drops ( time ) |
| Radar reflectivity | mm^6/mm^3 | radar_reflectivity ( time ) |
| Rain amount | mm | rain_amount ( time ) |
| Rain rate | mm/hr | rain_rate ( time ) |
| Estimated Marshall-Palmer slope parameter | 1/mm | slope_parameter ( time ) |
| Time offset from midnight | time ( time ) | |
| Time offset from base_time | time_offset ( time ) | |
| Sum of num_drops | unitless | total_drops ( time ) |
Locations
- Southern Great Plains (SGP)
- Central Facility, Lamont, OK (C1)
- Tropical Western Pacific (TWP)
- Central Facility, Manus I., PNG (C1)
- Central Facility, Darwin, Australia (C3)
- ARM Mobile Facility (GAN)
- Gan Airport, Gan Island, Maldives (M1)
Contact(s)
Mary Jane Bartholomew
(631) 344-2444
bartholomew@bnl.gov
