ASDC | TOLNet_LaRC_Data

TOLNet Level 2

Entry Title: TOLNet NASA Langley Research Center Data

Entry ID: TOLNet_LaRC_Data_1

Tropospheric Composition

Description

TOLNet_LaRC_Data is the lidar data collected by the Langley Mobile Ozone Lidar (LMOL) at NASA Langley Research Center (LaRC) as part of the Tropospheric Ozone Lidar Network (TOLNet). Data collection for this product is ongoing.

In the troposphere, ozone is considered a pollutant and is important to understand due to its harmful effects on human health and vegetation. Tropospheric ozone is also significant for its impact on climate as a greenhouse gas. Operating since 2011, TOLNet is an interagency collaboration between NASA, NOAA, and the EPA designed to perform studies of air quality and atmospheric modeling as well as validation and interpretation of satellite observations. TOLNet is currently comprised of six Differential Absorption Lidars (DIAL). Each of the lidars are unique, and some have had a long history of ozone observations prior to joining the network. Five lidars are mobile systems that can be deployed at remote locations to support field campaigns. This includes the Langley Mobile Ozone Lidar (LMOL) at NASA Langley Research Center (LaRC), the Tropospheric Ozone (TROPOZ) lidar at the Goddard Space Flight Center (GSFC), the Tunable Optical Profile for Aerosol and oZone (TOPAZ) lidar at the NOAA Chemical Sciences Laboratory (CSL) in Boulder, Colorado, the Autonomous Mobile Ozone LIDAR instrument for Tropospheric Experiments (AMOLITE) lidar at Environment and Climate Change Canada (ECCC) in Toronto, Canada, and the Rocket-city O3 Quality Evaluation in the Troposphere (RO3QET) lidar at the University of Alabama in Huntsville, Alabama. The remaining lidar, the Table Mountain Facility (TMF) tropospheric ozone lidar system located at the NASA Jet Propulsion Laboratory (JPL), is a fixed system.

TOLNet seeks to address three science objectives. The primary objective of the network is to provide high spatio-temporal measurements of ozone from near the surface to the top of the troposphere. Detailed observations of ozone structure allow science teams and the modeling community to better understand ozone in the lower-atmosphere and to assess the accuracy and vertical resolution with which geosynchronous instruments could retrieve the observed laminar ozone structures. Another objective of TOLNet is to identify an ozone lidar instrument design that would be suitable to address the needs of NASA, NOAA, and EPA air quality scientists who express a desire for these ozone profiles. The third objective of TOLNET is to perform basic scientific research into the processes create and destroy the ubiquitously observed ozone laminae and other ozone features in the troposphere. To help fulfill these objectives, lidars that are a part of TOLNet have been deployed to support nearly ten campaigns thus far. This includes campaigns such as the Deriving Information on Surface conditions from Column and Vertically Resolved Observations Relevant to Air Quality (DISCOVER-AQ) mission, the Korea United States Air Quality Study (KORUS-AQ), the Tracking Aerosol Convection ExpeRiment – Air Quality (TRACER-AQ) campaign, the Front Range Air Pollution and Photochemistry Éxperiment (FRAPPÉ), the Long Island Sound Tropospheric Ozone Study (LISTOS), and the Ozone Water–Land Environmental Transition Study (OWLETS).

DOI

10.5067/Lidar/Ozone/TOLNet/NASA-LaRC

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GENERAL DOCUMENTATION

Capabilities & example data from the Langley Mobile Ozone Lidar (LMOL)
TOLNet StoryMap

PUBLICATIONS

A mobile differential absorption lidar to measure sub-hourly fluctuation of tropospheric ozone profiles in the Baltimore–Washington, D.C. region

Comparison between the TOPAZ Airborne Ozone Lidar and In Situ Measurements during TexAQS 2006

Developing a portable, autonomous aerosol backscatter lidar for network or remote operations

Development and Application of a Compact, Tunable, Solid-State Airborne Ozone Lidar System for Boundary Layer Profiling

Ground-based lidar for atmospheric boundary layer ozone measurements

Quantifying TOLNet ozone lidar accuracy during the 2014 DISCOVER-AQ and FRAPPÉ campaigns

Redesign and improved performance of the tropospheric ozone lidar at the Jet Propulsion Laboratory Table Mountain Facility

From GCMD Science Keywords:

OZONE SURFACE > ATMOSPHERIC OZONE > OXYGEN COMPOUNDS
RELATIVE HUMIDITY > HUMIDITY > WATER VAPOR INDICATORS
TROPOSPHERIC OZONE
WIND DIRECTION > SURFACE WINDS
OZONE PROFILES > ATMOSPHERIC OZONE > OXYGEN COMPOUNDS
ATMOSPHERIC TEMPERATURE
WIND SPEED > SURFACE WINDS
SURFACE PRESSURE
SURFACE TEMPERATURE
TRACE GASES/TRACE SPECIES

Data Distribution

File Format(s):

HDF4, HDF-EOS2, ICARTT, Other (.dat)

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Spatial Information

Spatial Coverage: (S: 18.7, N: 42), (W: -118, E: -73)
Spatial Coverage Type: Horizontal Vertical
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

NORTH AMERICA UNITED STATES OF AMERICA COLORADO TEXAS VIRGINIA WESTERN HEMISPHERE NORTHERN HEMISPHERE MID-LATITUDE

Temporal Information

Temporal Coverage: 2013-09-17 - Present

Platforms

Permanent Land Sites

GROUND STATIONS

LMOL

Langley Mobile Ozone Lidar

Metadata Dates

Created on 2022-10-04

Last updated on 2023-12-08