Validation of a Water Vapor Micropulse Differential Absorption Lidar (DIAL)

Weckwerth, Tammy M.; Weber, Kristy J.; Turner, David D.; Spuler, Scott M.

doi:10.1175/JTECH-D-16-0119.1

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i

Validation of a Water Vapor Micropulse Differential Absorption Lidar (DIAL)

2016
By Weckwerth, Tammy M. ; Weber, Kristy J. ; Turner, David D. ; ...
Source: Journal of Atmospheric and Oceanic Technology, 33(11), 2353-2372

[PDF-3.34 MB]

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Journal Title:

Journal of Atmospheric and Oceanic Technology
Personal Author:

Weckwerth, Tammy M. ; Weber, Kristy J. ; Turner, David D. ; Spuler, Scott M.

Weckwerth, Tammy M. ; Weber, Kristy J. ; Turner, David D. ; Spuler, Scott M. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; NSSL (National Severe Storms Laboratory)

OAR (Oceanic and Atmospheric Research) ; NSSL (National Severe Storms Laboratory) Less -
Description:

A water vapor micropulse differential absorption lidar (DIAL) instrument was developed collaboratively by the National Center for Atmospheric Research (NCAR) and Montana State University (MSU). This innovative, eye-safe, low-power, diode-laser-based system has demonstrated the ability to obtain unattended continuous observations in both day and night. Data comparisons with well-established water vapor observing systems, including radiosondes, Atmospheric Emitted Radiance Interferometers (AERIs), microwave radiometer profilers (MWRPs), and ground-based global positioning system (GPS) receivers, show excellent agreement. The Pearson’s correlation coefficient for the DIAL and radiosondes is consistently greater than 0.6 from 300 m up to 4.5 km AGL at night and up to 3.5 km AGL during the day. The Pearson’s correlation coefficient for the DIAL and AERI is greater than 0.6 from 300 m up to 2.25 km at night and from 300 m up to 2.0 km during the day. Further comparison with the continuously operating GPS instrumentation illustrates consistent temporal trends when integrating the DIAL measurements up to 6 km AGL.
Keywords:

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Atmospheric Science Ocean Engineering
Source:

Journal of Atmospheric and Oceanic Technology, 33(11), 2353-2372
DOI:

https://doi.org/10.1175/JTECH-D-16-0119.1
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0739-0572;1520-0426;
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PDF
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American Meteorological Society
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Journal Article
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urn:sha256:2f69e7fcef02778649fb9cf5c89e11926b1a02d50da23869159f729ef9871129
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https://repository.library.noaa.gov/view/noaa/55018/noaa_55018_DS1.pdf
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Validation of a Water Vapor Micropulse Differential Absorption Lidar (DIAL)

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