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FIELD CAMPAIGN -
Distributed Regional Aerosol Gridded Observation Networks (DRAGON)-USA
2013 SEAC4RS Southeast US

 
 
Updates
Instrument Status Log
Summaries
Additional SEAC4RS Links
 
Data (Top)
 

Aerosol Optical Depth Products (including water vapor and fine/coarse mode AOD)

+ AOD Data Browser

+ AOD Data Download Tool

Almcuantar Inversion Aerosol Properties (including size distributions, complex index of refraction, single scattering albedo, etc.)

+ Inversion Data Browser

+ Inversion Data Download Tool

Combined Data Download Table (May 1, 2013 to November 1, 2013)

Data
Data Format
Level 1.0 Aerosol Optical Depth (AOD)

+ All Points
+ Daily Averages
+ Monthly Averages

Level 1.5 Aerosol Optical Depth (AOD)
Level 2.0 Aerosol Optical Depth (AOD)
Level 1.0 Spectral Deconvolution Algorithm (SDA) Retrievals
Level 1.5 Spectral Deconvolution Algorithm (SDA) Retrievals
Level 2.0 Spectral Deconvolution Algorithm (SDA) Retrievals
Level 1.5 Almucantar Inversion Products
(except Phase Functions)
Level 1.5 Almucantar Inversion Products Phase Functions
Level 2.0 Almucantar Inversion Products
(except Phase Functions)
Level 2.0 Almucantar Inversion Phase Functions
 
Background
 

Aerosol measurement observations from ground-based sun photometers and sun/sky radiometers have played a critical role in developing, reformulating and validating satellite algorithms to characterize aerosol optical depth, modal aerosol retrievals and single scattering albedo among other parameters.   New and improved algorithms are being developed for current and future satellite missions that will place a greater demand on the accuracy and fidelity of the ground-based measurements for validation, multi data set synergism and long-term climate research.  Heretofore satellite validation studies using sun and sky scanning spectral radiometer measurements such as AERONET have relied on point observations extrapolated to a two dimensional domain to compare to the satellite retrieval.  Additionally few of the ground-based remote sensing measurements have had a rigorous comparison or validation against other ground-based measurements particularly in situ observations of aerosol size and absorption.  DRAGON-USA will provide a data set to address satellite validation and in situ comparisons.

+ DRAGON White Paper

 
Experimental Objectives (Top)
 
  • Establish a mesoscale gridded network of sun photometers that encompasses, urban, agricultural, mountainous, and maritime landscapes over the southeast US
  • Optimize the grid to validate/collaborate inversion products in conjunction with aircraft flights performing in situ measurements
  • Optimize the gridded network to validate satellite retrievals from 50 m to 10 Km pixel resolution
  • Supplement the gridded network with non gridded sites to capture aerosol variability
  • Develop a geo-referenced database that will accommodate supplementary/complimentary data sets
 
Measurement Plan (Top)
 

In support of the NASA Studies of Emissions and Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys (SEAC4RS), ~15 AERONET sites will be established across the Southeast United States to provide the first coherent regional ground network of sun photometer data. Many of the new sites will be setup in collaboration with IMPROVE, SEARCH, and US EPA NERL as well as participating schools and universities.

In August and September 2013, the NASA DC-8 and ER-2 aircraft will fly over the continental US to investigate the influence of biomass burning smoke and pollution, their temporal evolution, and impacts on meteorological processes and feedbacks into regional air quality. Aircraft sampling regions are anticipated over the western and southeast United States. SEAC4RS activities will dovetail with DRAGON-USA Houston where 15 AERONET instruments deployed in the Houston, Texas metropolitan region to the Gulf of Mexico in support of NASA DISCOVER-AQ P3-B and King Air air quality research flights occurring in September 2013.

Figure 1 DRAGON-USA 2012 Site Distribution

Figure 1. SEAC4RS Southeast US 2013 Site Distribution

DRAGON Text Lists

+ Level 1.0 AOD Data (TXT)
+ Level 1.5 AOD Data
(TXT)
+ Level 2.0 AOD Data (TXT)

DRAGON Google Earth Distribution

+ Level 1.0 AOD Data (Google Earth KMZ)
+ Level 1.5 AOD Data
(Google Earth KMZ)
+ Level 2.0 AOD Data (Google Earth KMZ)

 
Contacts (Top)
Collaborators
Title/Project Organization
Brent Holben
SEAC4RS Ground-based Network POC/AERONET PI
NASA GSFC
Jeff Reid
SEAC4RS Ground-based Network POC
NRL-Monterey
Anne Thompson
SEACIONS
NASA GSFC
Rennie Selkirk
Frost-point Hygrometer
NASA GSFC
Eric Edgerton
SEARCH
Atmsopheric Research & Analysis Inc.
Brad Gingrey
SEARCH
Atmsopheric Research & Analysis Inc.
Bret Schichtel
IMPROVE
Colorado State University
Mike Newchurch
Huntsville Ground Site/Ozone Lidar
University of Alabama-Huntsville
Bob Holz
HSRL Lidar
University of Wisconsin
Ed Eloranta
HSRL Lidar
University of Wisconsin
John Offenberg
Research Triangle Park
EPA NREL
     
Tom Eck
AERONET
NASA GSFC
Mikhail Sorokin
AERONET
NASA GSFC
David Giles
AERONET
NASA GSFC
Ilya Slutsker
AERONET
NASA GSFC
Joel Schafer
AERONET
NASA GSFC
Peter Kenny
AERONET
NASA GSFC
Alexander Smirnov
AERONET
NASA GSFC
Jon Rodriguez
AERONET
NASA GSFC
Aliaksandr Siniuk
AERONET
NASA GSFC
Amy Scully
AERONET
NASA GSFC

 

 

  + Privacy Policy and Important Notices NASA Curator: David M. Giles
NASA Official: Brent N. Holben
Last Updated: October 02, 2013