ASDC | OWLETS2_UMDAircraft_Data

OWLETS Level 2

Entry Title: OWLETS-2 University of Maryland Cessna Aircraft Data

Entry ID: OWLETS2_UMDAircraft_Data_1

Aerosols

Description

OWLETS2_UMDAircraft_Data_1 is the Ozone Water-Land Environmental Transition Study (OWLETS-2) data collected onboard the University of Maryland Cessna Aircraft. Data include trace gas measurements, greenhouse gases, aerosols, and aircraft navigational and housekeeping data collected via remote sensing and in-situ instrumentation. This collection features data from the GeoTASO instrument, a pre-cursor to the TEMPO satellite. OWLETS and OWLETS-2 were 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/UMDAircraft_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

NASA Chesapeake Bay Study To Help Improve Air-Quality Forecasts

The Ozone Water–Land Environmental Transition Study: An Innovative Strategy for Understanding Chesapeake Bay Pollution Events

From GCMD Science Keywords:

AEROSOL BACKSCATTER
ATMOSPHERIC WATER VAPOR
SURFACE WINDS
NITROGEN OXIDES > NITROGEN COMPOUNDS
ATMOSPHERIC CHEMISTRY
HUMIDITY > WATER VAPOR INDICATORS
ATMOSPHERIC OZONE > OXYGEN COMPOUNDS
WIND SPEED > SURFACE WINDS
WIND DIRECTION > UPPER LEVEL WINDS
AEROSOLS
METHANE > CARBON AND HYDROCARBON COMPOUNDS
CARBON AND HYDROCARBON COMPOUNDS
NITROGEN DIOXIDE > NITROGEN COMPOUNDS
ATMOSPHERIC CARBON DIOXIDE > CARBON AND HYDROCARBON COMPOUNDS
WIND DIRECTION > SURFACE WINDS
UPPER LEVEL WINDS
ATMOSPHERIC CARBON MONOXIDE > CARBON AND HYDROCARBON COMPOUNDS
ATMOSPHERIC WINDS
NITROGEN COMPOUNDS
RELATIVE HUMIDITY > HUMIDITY > WATER VAPOR INDICATORS
OXYGEN COMPOUNDS
WATER VAPOR INDICATORS
TRACE GASES/TRACE SPECIES

Data Distribution

File Format(s):

ICARTT , HDF5

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Spatial Information

Spatial Coverage: (S: 36, N: 43), (W: -78, E: -70)
Spatial Coverage Type: Horizontal Vertical
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

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

Temporal Information

Temporal Coverage: 2017-07-07 - 2018-07-20

Platforms

Propeller

UMD Cessna

University Of Maryland Cessna 402B Research Aircraft

GPS

Global Positioning System

GAS SENSORS

TSI-3563 Neph

TSI-3563 Nephelometer

AETHALOMETER

PSAP

3-Wavelength Particle Soot Absorption Photometer Manufactured by Radiance Research

GeoTASO

Geostationary Trace gas and Aerosol Sensor Optimization

Picarro G2401

Picarro G2401 Gas Concentration Analyzer

LGR CRDS

Los Gatos Research Cavity Ringdown Spectroscopy

Metadata Dates

Created on 2020-12-09

Last updated on 2023-10-06