ASDC | SCOAPE_Ground_Data

SCOAPE Level 2

Entry Title: SCOAPE Ground Site Data

Entry ID: SCOAPE_Ground_Data_1

Aerosols Clouds

Description

SCOAPE_Ground_Data is the ground site data collected during the Satellite Coastal and Oceanic Atmospheric Pollution Experiment (SCOAPE). The ground site was located at the Louisiana Universities Marine Consortium (LUMCON; Cocodrie, LA). This collection features NO2 volume mixing ratios from the Teledyne API T500U and boundary layer height information from the UH Vaisala CL31 Ceilometer. Data collection for this product is complete.

The Outer Continental Shelf Lands Act (OCSLA) requires the US Department of Interior Bureau of Ocean Energy Management (BOEM) to ensure compliance with the US National Ambient Air Quality Standard (NAAQS) so that Outer Continental Shelf (OCS) oil and natural gas (ONG) exploration, development, and production do not significantly impact the air quality of any US state. In 2017, BOEM and NASA entered into an interagency agreement to begin a study to scope out the feasibility of BOEM personnel using a suite of NASA and non-NASA resources to assess how pollutants from ONG exploration, development, and production activities affect air quality. An important activity of this interagency agreement was SCOAPE, a field deployment that took place in May 2019, that aimed to assess the capability of satellite observations for monitoring offshore air quality. The outcomes of the study are documented in two BOEM reports (Duncan, 2020; Thompson, 2020).

To address BOEM’s goals, the SCOAPE science team conducted surface-based remote sensing and in-situ measurements, which enabled a systematic assessment of the application of satellite observations, primarily NO2, for monitoring air quality. The SCOAPE field measurements consisted of onshore ground sites, including in the vicinity of LUMCON, as well as those from University of Southern Mississippi’s Research Vessel (R/V) Point Sur, which cruised in the Gulf of Mexico from 10-18 May 2019. Based on the 2014 and 2017 BOEM emissions inventories as well as daily air quality and meteorological forecasts, the cruise track was designed to sample both areas with large oil drilling platforms and areas with dense small natural gas facilities. The R/V Point Sur was instrumented to carry out both remote sensing and in-situ measurements of NO2 and O3 along with in-situ CH4, CO2, CO, and VOC tracers which allowed detailed characterization of airmass type and emissions. In addition, there were also measurements of multi-wavelength AOD and black carbon as well as planetary boundary layer structure and meteorological variables, including surface temperature, humidity, and winds. A ship-based spectrometer instrument provided remotely-sensed total column amounts of NO2 and O3 for direct comparison with satellite measurements. Ozonesondes and radiosondes were also launched 1-3 times daily from the R/V Point Sur to provide O3 and meteorological vertical profile observations. The ground-based observations, primarily at LUMCON, included spectrometer-measured column NO2 and O3, in-situ NO2, VOCs, and planetary boundary layer structure. A NO2sonde was also mounted on a vehicle with the goal to detect pollution onshore from offshore ONG activities during onshore flow; data were collected along coastal Louisiana from Burns Point Park to Grand Isle to the tip of the Mississippi River delta. The in-situ measurements were reported in ICARTT files or Excel files. The remote sensing data are in either HDF or netCDF files.

DOI

10.5067/ASDC/SUBORBITAL/SCOAPE_Ground_Data_1

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GENERAL DOCUMENTATION

PUBLICATIONS

BOEM - NASA Resources to Monitor Offshore and Coastal Air Quality

SCOAPE: Satellite and Shipboard Views of Air Quality along the Louisiana Coast

From GCMD Science Keywords:

ATMOSPHERIC CHEMISTRY
AEROSOLS
CLOUD BASE HEIGHT > CLOUD PROPERTIES
AEROSOL BACKSCATTER
CLOUD PROPERTIES
NITROGEN DIOXIDE > NITROGEN COMPOUNDS
PLANETARY BOUNDARY LAYER HEIGHT
NITROGEN COMPOUNDS

Data Distribution

File Format(s):

HDF5, ICARTT

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Spatial Information

Spatial Coverage: (27, 29.5), (-92, -87.5)
Spatial Coverage Type: Horizontal Vertical
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

NORTH AMERICA UNITED STATES OF AMERICA LOUISIANA ATLANTIC OCEAN NORTH ATLANTIC OCEAN GULF OF MEXICO

Temporal Information

Temporal Coverage: 2019-04-09 - 2019-05-21

Platforms

Permanent Land Sites

GROUND STATIONS

CEILOMETERS

CAPS NO2 Analyzer

Cavity Attenuated Phase Shift Nitrogen Dioxide Analyzer

Metadata Dates

Created on 2022-01-24

Last updated on 2023-06-14

SCOAPE Level 2

Entry Title: SCOAPE Ground Site Data

Entry ID: SCOAPE_Ground_Data_1

Aerosols Clouds

DOI

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Keywords

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Data Distribution

File Format(s):

Spatial Information

Locations

Temporal Information

Platforms

Permanent Land Sites

GROUND STATIONS

CEILOMETERS

CEILOMETERS

CAPS NO2 Analyzer

Cavity Attenuated Phase Shift Nitrogen Dioxide Analyzer

Metadata Dates