LASE Level 3
Entry Title: Lidar Atmospheric Sensing Experiment (LASE) Validation

Entry ID: LASE_VALIDATION_1
Aerosols Clouds Tropospheric Composition Field Campaigns
Description

An extensive validation experiment was conducted in September 1995 from Wallops Island, Virginia, to evaluate the performance of the LASE (Lidar Atmospheric Sensing Experiment) system for the measurement of water vapor profiles under a wide range of atmospheric and solar background conditions. During this experiment, the LASE system was flown on a high-altitude (ER-2) aircraft on ten missions for a total of 60 hours. LASE measurements of tropospheric water vapor were compared with in situ measurements from balloons and aircraft that were flown under the ER-2 and with remote measurements from the ground and from aircraft. A high-altitude aircraft (Lear Jet) was equipped with two in situ hygrometers, and a medium to low altitude aircraft (C-130) had onboard the NASA Langley airborne water vapor DIAL system and two in situ hygrometers. Several radiosondes were launched during each LASE flight, and some of these sondes were part of a concurrent international radiosonde intercomparison campaign sponsored by the World Meteorological Organization. The NASA Goddard Scanning Raman lidar also provided nighttime water vapor profile measurements from the ground. During this field experiment, LASE was also used in a number of atmospheric case studies including measurements of Hurricane Luis, a coastal sea breeze development, a strong cold front, an upper level front, and cirrus clouds.

Keywords

From GCMD Science Keywords:
  • AEROSOL BACKSCATTER
  • Atmospheric Scattering Ratio (ASR)
  • NASA ER-2
  • Total Scattering Ratio (TSR)
  • Water Vapor Concentration Profiles
Data Distribution

File Format(s):

ASCII

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Spatial Information

spatial-coverage-map
Spatial Coverage: (28.71, 42.86), (-85.74, -62.66)
Spatial Coverage Type: Horizontal
Coordinate System: Cartesian
Granule Spatial Representation: Geodetic
Locations

NORTH AMERICA
Temporal Information

Temporal Coverage: 1995-09-08 - 1995-09-27
Temporal Resolution: 3 Seconds
Platforms

Aircraft
NASA ER-2
NASA Earth Resources-2
DIAL
Differential Absorption Lidar
Metadata Dates

Created on 1999-10-13
Last updated on 2021-04-07