ASDC | SCOAPE_RVPointSur_Data

SCOAPE Level 2

Entry Title: SCOAPE R/V Point Sur Data

Entry ID: SCOAPE_RVPointSur_Data_1

Aerosols Clouds Radiation Budget Tropospheric Composition

Description

SCOAPE_RVPointSur_Data is the data collected from instruments onboard the University of Southern Mississippi’s Research Vessel (R/V) Point Sur during the Satellite Coastal and Oceanic Atmospheric Pollution Experiment (SCOAPE). Data was collected by sun photometers, ceilometers, aethalometers, anemometers, and pyranometers. 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 the Louisiana Universities Marine Consortium (LUMCON; Cocodrie, LA), as well as those from University of Southern Mississippi’s 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_RVPointSur_Data_1

Citation Styles for this Dataset

Publications

Thompson, Anne M.; Kollonige, Debra E.; Stauffer, Ryan M.; Kotsakis, Alexander E.; Abuhassan, Nader; Lamsal, Lok N.; Swap, Robert J.; Blake, Donald R.; Townsend‐Small, Amy; Wecht, Holli D. (2023). Two Air Quality Regimes in Total Column NO2 Over the Gulf of Mexico in May 2019: Shipboard and Satellite Views.

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DATA CITATION POLICY

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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:

RELATIVE HUMIDITY > HUMIDITY > WATER VAPOR INDICATORS
TROPOSPHERIC OZONE
ATMOSPHERIC OZONE > OXYGEN COMPOUNDS
METHANE > CARBON AND HYDROCARBON COMPOUNDS
SHORTWAVE RADIATION
AEROSOL BACKSCATTER
ORGANIC CARBON
AEROSOLS
ATMOSPHERIC RADIATION
CARBON AND HYDROCARBON COMPOUNDS
NITROGEN COMPOUNDS
NITROGEN DIOXIDE > NITROGEN COMPOUNDS
WATER VAPOR INDICATORS
ATMOSPHERIC TEMPERATURE
WIND DIRECTION > SURFACE WINDS
OPTICAL DEPTH/THICKNESS
LONGWAVE RADIATION
WIND SPEED > SURFACE WINDS
AEROSOL OPTICAL DEPTH/THICKNESS
OXYGEN COMPOUNDS
CLOUD BASE HEIGHT > CLOUD PROPERTIES
ATMOSPHERIC CARBON DIOXIDE > CARBON AND HYDROCARBON COMPOUNDS
ANGSTROM EXPONENT > AEROSOL OPTICAL DEPTH/THICKNESS
TOTAL PRECIPITABLE WATER > WATER VAPOR INDICATORS
WATER VAPOR > WATER VAPOR INDICATORS

Data Distribution

File Format(s):

NetCDF-3, ICARTT

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Spatial Information

Spatial Coverage: (S: 26, N: 31.5), (W: -94, E: -84)
Spatial Coverage Type: Horizontal Vertical
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

NORTH AMERICA UNITED STATES OF AMERICA LOUISIANA GULF OF MEXICO

Temporal Information

Temporal Coverage: 2019-05-09 - 2019-05-19

Platforms

Vessels

R/V Point Sur

CEILOMETERS

SUN PHOTOMETERS

AETHALOMETER

ANEMOMETERS

PYRANOMETERS

Metadata Dates

Created on 2022-01-24

Last updated on 2023-06-15

SCOAPE Level 2

Entry Title: SCOAPE R/V Point Sur Data

Entry ID: SCOAPE_RVPointSur_Data_1

Aerosols Clouds Radiation Budget Tropospheric Composition

DOI

Publications

Resources and Documentation

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Keywords

From GCMD Science Keywords:

Data Distribution

File Format(s):

Spatial Information

Locations

Temporal Information

Platforms

Vessels

R/V Point Sur

CEILOMETERS

CEILOMETERS

SUN PHOTOMETERS

SUN PHOTOMETERS

AETHALOMETER

ANEMOMETERS

ANEMOMETERS

PYRANOMETERS

PYRANOMETERS

Metadata Dates