ASDC | ASIA-AQ_jValue_AircraftInSitu_DC8_Data

ASIA-AQ Level 2

Entry Title: ASIA-AQ DC-8 Photolysis Frequencies (J-Values)

Entry ID: ASIA-AQ_jValue_AircraftInSitu_DC8_Data_1

Aerosols

Description

ASIA-AQ_jValue_AircraftInSitu_DC8_Data is the in-situ photolysis rates collected onboard the DC-8 aircraft during the Airborne and Satellite Investigation of Asian Air Quality (ASIA-AQ) campaign. Data from the CCD-based Actinic Flux Spectroradiometer (CAFS) is featured in this collection. Data collection for this product is complete.

The ASIA-AQ campaign was an international cooperative field study designed to address local air quality challenges. Conducted from January-March 2024, ASIA-AQ deployed multiple aircraft to collect in situ and remote sensing measurements, along with numerous ground-based observations and modeling assessments. Data was collected over four countries including, the Philippines, Taiwan, South Korea and Thailand and flights were conducted in full partnership with local scientists and environmental agencies responsible for air quality monitoring and assessment. One of the primary goals of ASIA-AQ was to contribute improving integration of satellite observations with existing air quality ground monitoring and modeling efforts across Asia. Air quality observations from satellites are evolving with new capabilities from South Korea’s Geostationary Environment Monitoring Spectrometer (GEMS), which conducts hourly measurements to provide a new view of air quality conditions from space that complements and depends upon ground-based monitoring efforts of countries in its field of view. ASIA-AQ science goals focused on satellite validation and interpretation, emissions quantification and verification, model evaluation, aerosol chemistry, and ozone chemistry.

DOI

10.5067/SUBORBITAL/ASIA-AQ/DATA001/DC8/jValue_AircraftInSitu_1

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PUBLICATIONS

Geostationary Environment Monitoring Spectrometer (GEMS) polarization characteristics and correction algorithm

From GCMD Science Keywords:

NITRATE PARTICLES
HYDROGEN PEROXIDE > OXYGEN COMPOUNDS
DINITROGEN PENTOXIDE > NITROGEN COMPOUNDS
CLOUD-SCREENED TOTAL COLUMN NITROGEN DIOXIDE (NO2) > NITROGEN COMPOUNDS
OZONE PROFILES > ATMOSPHERIC OZONE > OXYGEN COMPOUNDS
FORMALDEHYDE > CARBON AND HYDROCARBON COMPOUNDS
PHOTOLYSIS RATES > PHOTOCHEMISTRY
CHLORINE MONOXIDE > HALOCARBONS AND HALOGENS

Data Distribution

File Format(s):

ICARTT

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Spatial Information

Spatial Coverage: (S: 12.46, N: 61.11), (W: -180, E: 180)
Spatial Coverage Type: Horizontal Vertical
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

AFRICA EASTERN HEMISPHERE NORTHERN HEMISPHERE TROPOSPHERE

Temporal Information

Temporal Coverage: 2024-01-23 - 2024-04-02

Platforms

Jet

NASA DC-8

NASA Douglas DC-8

CAFS

CCD-based Actinic Flux Spectroradiometer

Metadata Dates

Created on 2024-10-18

Last updated on 2025-02-03