ASDC | OWLETS2_Aerosol_Data

OWLETS Level 2

Entry Title: OWLETS-2 Ceilometer Aerosol Data

Entry ID: OWLETS2_Aerosol_Data_1

Field Campaigns

Description

OWLETS2_Aerosol_Data_1 is the Ozone Water-Land Environmental Transition Study (OWLETS-2) aerosol data collected at various ground sites during the OWLETS-2 field campaign via ceilometers and PILS-IC. OWLETS was supported by the NASA Science Innovation Fund (SIF). Data collection is complete.

Coastal regions have typically posed a challenge for air quality researchers due to a lack of measurements available over water and water-land boundary transitions. Supported by NASA’s Science Innovation Fund (SIF), the Ozone Water-Land Environmental Transition Study (OWLETS) field campaign examined ozone concentrations and gradients over the Chesapeake Bay from July 5, 2017 – August 3, 2017, with twelve intensive measurement days occurring during this time period. OWLETS utilized a unique combination of instrumentation, including aircraft, TOLNet ozone lidars (NASA Goddard Space Flight Center Tropospheric Ozone Differential Absorption Lidar and NASA Langley Research Center Mobile Ozone Lidar), UAV/drones, ozonesondes, AERONET sun photometers, and mobile and ship-based measurements, to characterize the land-water differences in ozone and other pollutants. Two main research sites were established as part of the campaign: an over-land site at NASA LaRC, and an over-water site at the Chesapeake Bay Bridge Tunnel. These two research sites were established to provide synchronous vertical measurements of meteorology and pollutants over water and over land. In combination with mobile observations between the two sites, pollutant gradients were able to be observed and used to better understand the fundamental processes occurring at the land-water interface. OWLETS-2 was completed from June 6, 2018 – July 6, 2018 in the upper Chesapeake Bay region. Research sites were established at the University of Maryland, Baltimore County (UMBC), Hart Miller Island (HMI), and Howard University Beltsville (HUBV), with HMI representing the over-water location and UMBC and HUBV representing the over-land sites. Similar measurements were carried out to further characterize water-land gradients in the upper Chesapeake Bay. The measurements completed during OWLETS are of importance in enhancing air quality models, and improving future satellite retrievals, particularly, NASA’s Tropospheric Emissions: Monitoring of Pollution, which is scheduled to launch in 2022.

DOI

10.5067/Suborbital/OWLETS-2/Aerosol_Data_1

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Resources and Documentation

Earthdata Forum

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DATA CITATION POLICY

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GENERAL DOCUMENTATION

Ozone Water-Land Environmental Transition Study (OWLETS) Introduction Presentation Slides

PUBLICATIONS

From GCMD Science Keywords:

AEROSOL BACKSCATTER
AEROSOLS

Data Distribution

File Format(s):

HDF5

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Spatial Information

Spatial Coverage: (36, 41), (-78, -75)
Spatial Coverage Type: Horizontal Vertical
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

NORTH AMERICA UNITED STATES OF AMERICA MARYLAND VIRGINIA NORTHERN HEMISPHERE WESTERN HEMISPHERE TROPOSPHERE

Temporal Information

Temporal Coverage: 2018-06-06 - 2018-07-07
Temporal Resolution: Variable

Platforms

In Situ Land-based Platforms

GROUND STATIONS

CEILOMETERS

PILS/IC

BMI Particle-Into-Liquid Sampler Manufactured by Brechtel and ICS-3000 Ion Chromatography System Manufactured by Thermo Scientific Dionex

Metadata Dates

Created on 2020-12-09

Last updated on 2022-04-19