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Indian Ocean Experiment (INDOEX): Physical, optical, and chemical properties of atmospheric marine aerosols aboard NOAA R/V Ronald H. Brown in the Atlantic and Indian Oceans, 1999-01-14 to 1999-03-31 (NCEI Accession 0312108)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 03, 2026 at 05:18 AM | Dataset Last Updated: February 03, 2026 at 12:00 AM
This dataset contains physical, optical, and chemical properties of atmospheric marine aerosols aboard NOAA R/V Ronald H. Brown, collected 14 January to 31 March 1999 as part of the INDOEX field campaign. The first leg of the cruise was designated Aerosols99, and collected data during the transit from Norfolk, VA to Cape Town, South Africa, which was the official starting location of INDOEX. The data is divided into eight csv datasets, summarized as follows: Main - Navigation, Meteorology, and Scattering; Chemistry - Aerosol species concentrations at varying particle diameters; AOD - Aerosol optical depth at varying wavelengths; DMS - Seawater Dimethyl sulfide; Size Distribution (APS) - Aerodynamic Particle Size Distribution; Size Distribution (DMPS) - Differential Mobility Particle Size Distribution; Size Distribution (DMPS Dry) - Differential Mobility Particle Size Distribution at 10% RH; Size Distribution - Merged version of the APS and DMPS datasets

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0312108 ABSORPTION - SCATTERING - ATTENUATION COEFFICIENTS AEROSOL OPTICAL THICKNESS Aerosols AIR TEMPERATURE BAROMETRIC PRESSURE CHLOROPHYLL course over ground

Complete Metadata
@type dcat:Dataset
accessLevel non-public
contactPoint 
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describedByType application/octet-steam
description This dataset contains physical, optical, and chemical properties of atmospheric marine aerosols aboard NOAA R/V Ronald H. Brown, collected 14 January to 31 March 1999 as part of the INDOEX field campaign. The first leg of the cruise was designated Aerosols99, and collected data during the transit from Norfolk, VA to Cape Town, South Africa, which was the official starting location of INDOEX. The data is divided into eight csv datasets, summarized as follows: Main - Navigation, Meteorology, and Scattering; Chemistry - Aerosol species concentrations at varying particle diameters; AOD - Aerosol optical depth at varying wavelengths; DMS - Seawater Dimethyl sulfide; Size Distribution (APS) - Aerodynamic Particle Size Distribution; Size Distribution (DMPS) - Differential Mobility Particle Size Distribution; Size Distribution (DMPS Dry) - Differential Mobility Particle Size Distribution at 10% RH; Size Distribution - Merged version of the APS and DMPS datasets
distribution 
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identifier https://data.noaa.gov/waf/NOAA/NESDIS/ncei/accessions/iso/xml/0312108.xml
issued 2026-01-30T00:00:00.000+00:00
keyword 
[
  "0312108",
  "ABSORPTION - SCATTERING - ATTENUATION COEFFICIENTS",
  "AEROSOL OPTICAL THICKNESS",
  "Aerosols",
  "AIR TEMPERATURE",
  "BAROMETRIC PRESSURE",
  "CHLOROPHYLL",
  "course over ground",
  "Dimethyl Sulfide",
  "LATITUDE",
  "LONGITUDE",
  "Ozone",
  "Particle Size Distribution",
  "Potassium",
  "PRECIPITATION RATE",
  "RELATIVE HUMIDITY",
  "SEA SURFACE TEMPERATURE",
  "SHORTWAVE IRRADIANCE",
  "speed over ground",
  "Sulfate (SO4 2-)",
  "WIND DIRECTION",
  "WIND SPEED",
  "Wind speed - east-west component (U)",
  "Wind speed - north-south component (V)",
  "anemometer",
  "barometer",
  "chromatograph",
  "fluorometer",
  "GPS",
  "humidity sensor",
  "nephelometer",
  "particle size analyzer",
  "radiometer",
  "spectrophotometer",
  "temperature sensor",
  "thermosalinograph",
  "chemical",
  "in situ",
  "meteorological",
  "navigational",
  "optical",
  "physical",
  "NOAA Ship Ronald H. Brown",
  "NOAA Pacific Marine Environmental Laboratory",
  "University of Washington Cooperative Institute for Climate, Ocean and Ecosystem Studies",
  "NOAA Pacific Marine Environmental Laboratory",
  "Arabian Sea",
  "Bay of Bengal",
  "Indian Ocean",
  "Laccadive Sea",
  "North Atlantic Ocean",
  "South Atlantic Ocean",
  "meteorology",
  "DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce",
  "EARTH SCIENCE > ATMOSPHERE > AEROSOLS",
  "EARTH SCIENCE > ATMOSPHERE > AEROSOLS > AEROSOL OPTICAL DEPTH/THICKNESS",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > OXYGEN COMPOUNDS > ATMOSPHERIC OZONE",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > SULFUR COMPOUNDS > DIMETHYL SULFIDE",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR INDICATORS > HUMIDITY > RELATIVE HUMIDITY",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > U/V WIND COMPONENTS",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND DIRECTION",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND SPEED",
  "EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > PARTICLE SIZE DISTRIBUTION",
  "EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION RATE",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL",
  "EARTH SCIENCE > OCEANS > OCEAN OPTICS > ATTENUATION/TRANSMISSION",
  "EARTH SCIENCE > OCEANS > OCEAN OPTICS > IRRADIANCE",
  "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE",
  "AEROSOL SPECIES",
  "ALTITUDE",
  "DMS SEAWATER",
  "PARTICLE NUMBER CONCENTRATION",
  "SHIP COURSE OVER GROUND",
  "SHIP SPEED OVER GROUND",
  "TOTAL PARTICULATE MASS",
  "ANEMOMETERS > ANEMOMETERS",
  "BAROMETERS > BAROMETERS",
  "FLUOROMETERS > FLUOROMETERS",
  "GAS CHROMATOGRAPHS > GAS CHROMATOGRAPHS",
  "GPS RECEIVERS > GPS RECEIVERS",
  "HUMIDITY SENSORS > HUMIDITY SENSORS",
  "OPTSPEC > Optical Spectrometer",
  "RADIOMETERS",
  "TEMPERATURE SENSORS > TEMPERATURE SENSORS",
  "THERMOSALINOGRAPHS",
  "Condensation Particle Counter",
  "O3 analyzer",
  "impactor",
  "precipitation sensor",
  "sunphotometer",
  "Ships",
  "Ronald H. Brown (call sign: WTEC, ICES code: 33RO, 1997-)",
  "R/V Ronald H. Brown",
  "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN",
  "OCEAN > ATLANTIC OCEAN > SOUTH ATLANTIC OCEAN",
  "OCEAN > INDIAN OCEAN",
  "OCEAN > INDIAN OCEAN > ARABIAN SEA",
  "OCEAN > INDIAN OCEAN > BAY OF BENGAL",
  "NB4LHB"
]
landingPage https://www.ncei.noaa.gov/contact
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2026-02-03T00:00:00.000+00:00
publisher 
{
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
}
references 
[
  "https://data.pmel.noaa.gov/pmel/erddap/index.html",
  "https://www.eol.ucar.edu/field_projects/indoex"
]
rights otherRestrictions
spatial 85.176,-35.03,-76.233,37.003
temporal 1999-01-14T00:00:00+00:00/1999-03-31T00:00:00+00:00
theme 
[
  "geospatial"
]
title Indian Ocean Experiment (INDOEX): Physical, optical, and chemical properties of atmospheric marine aerosols aboard NOAA R/V Ronald H. Brown in the Atlantic and Indian Oceans, 1999-01-14 to 1999-03-31 (NCEI Accession 0312108)

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