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  <idinfo>
    <citation>
      <citeinfo>
        <origin>
Project: AEROSOLS99-INDOEX
Name: Coffman, Derek
Email: derek.coffman@noaa.gov
Institution: NOAA
InfoURL: https://www.pmel.noaa.gov/acg/data/index.html
Source URL: (local files)
        </origin>
        <pubdate></pubdate>
        <title>PMEL Atmospheric Chemistry AEROSOLS99-INDOEX AOD(4080) data</title>
        <edition>Unknown</edition>
        <geoform>tabular digital data</geoform>
        <pubinfo>
          <pubplace>Seattle, WA, USA</pubplace>
          <publish>ERDDAP, version 2.30.0, at NOAA/PMEL</publish>
        </pubinfo>
        <onlink>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</onlink>
        <onlink>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.graph</onlink>
        <onlink>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.subset</onlink>
        <lworkcit>
          <citeinfo>
            <origin>AEROSOLS99-INDOEX</origin>
          </citeinfo>
        </lworkcit>
      </citeinfo>
    </citation>
    <descript>
      <abstract>The Aerosols99 and INDOEX research cruise occurred on the NOAA ship Ronald H. Brown between January 14 and March 30.

The Aerosols99 cruise crossed the Atlantic Ocean from Norfolk, Virginia to Cape Town, South Africa between January 14 and February 8, 1999. The goals of the cruise were to determine the chemical, physical, and optical properties of the marine boundary layer (MBL) aerosol, the vertical distribution of aerosols and ozone, the column integrated aerosol optical depth and the ozone, CO and peroxy radical chemistry in the MBL. Sampling strategies were optimized to obtain data sets to evaluate satellite derived ocean color (Sea-Wide Field-of-View Sensor (SeaWiFS)), aerosol optical depth (Advanced Very High Resolution Radiometer (AVHRR)) and total column ozone (TOMS). The cruise track crossed through 7 different meteorological/oceanographic regimes ranging from background marine air masses in the Northern and Southern hemispheres to air masses containing mineral dust and the products of biomass burning

The INDOEX research cruise left Capt Town on Febuary 11 and ended in Male, Maldives in March 30.  The cruise was an important component of the Indian Ocean Experiment (INDOEX).  This project was a large multi-national, multi-agency intensive field experiment in the Indian Ocean with three interrelated objectives:

Assess the significance of sulfates and other continental aerosols for global radiative forcing.
Assess the magnitude of the solar absorption at the surface and in the troposphere including the intertropical convergence zone (ITCZ) cloud systems.
Assess the role of the ITCZ in the transport of trace species and pollutants and their resultant radiative forcing.</abstract>
      <purpose>Unknown</purpose>
      <supplinf>https://www.pmel.noaa.gov/acg/data/index.html</supplinf>
    </descript>
    <timeperd>
      <timeinfo>
        <rngdates>
          <begdate>19990120</begdate>
          <enddate>19990327</enddate>
        </rngdates>
      </timeinfo>
      <current>ground condition</current>
    </timeperd>
    <status>
      <progress>Complete</progress>
      <update>As needed</update>
    </status>
    <spdom>
      <bounding>
        <westbc>-52.304</westbc>
        <eastbc>78.515</eastbc>
        <northbc>21.8109</northbc>
        <southbc>-30.013</southbc>
      </bounding>
    </spdom>
    <keywords>
      <theme>
        <themekt>GCMD Science Keywords</themekt>
        <themekey>380nm</themekey>
        <themekey>440nm</themekey>
        <themekey>500nm</themekey>
        <themekey>675nm</themekey>
        <themekey>870nm</themekey>
        <themekey>above</themekey>
        <themekey>absorption</themekey>
        <themekey>advanced</themekey>
        <themekey>aerosol</themekey>
        <themekey>aerosols99</themekey>
        <themekey>aerosols99-indoex</themekey>
        <themekey>altitude</themekey>
        <themekey>ambient</themekey>
        <themekey>aod</themekey>
        <themekey>aod_380</themekey>
        <themekey>aod_440</themekey>
        <themekey>aod_500</themekey>
        <themekey>aod_675</themekey>
        <themekey>aod_870</themekey>
        <themekey>atmosphere</themekey>
        <themekey>atmosphere_absorption_optical_thickness_due_to_ambient_aerosol_particles</themekey>
        <themekey>atmospheric</themekey>
        <themekey>avhrr</themekey>
        <themekey>chemistry</themekey>
        <themekey>convergence</themekey>
        <themekey>data</themekey>
        <themekey>datetime</themekey>
        <themekey>depth</themekey>
        <themekey>due</themekey>
        <themekey>duration</themekey>
        <themekey>earth</themekey>
        <themekey>Earth Science &gt; Atmosphere &gt; Altitude &gt; Station Height</themekey>
        <themekey>environmental</themekey>
        <themekey>field</themekey>
        <themekey>field-of-view</themekey>
        <themekey>height</themekey>
        <themekey>high</themekey>
        <themekey>identifier</themekey>
        <themekey>indoex</themekey>
        <themekey>intertropical</themekey>
        <themekey>itcz</themekey>
        <themekey>laboratory</themekey>
        <themekey>latitude</themekey>
        <themekey>level</themekey>
        <themekey>longitude</themekey>
        <themekey>marine</themekey>
        <themekey>mean</themekey>
        <themekey>noaa</themekey>
        <themekey>optical</themekey>
        <themekey>optical properties</themekey>
        <themekey>pacific</themekey>
        <themekey>particles</themekey>
        <themekey>pmel</themekey>
        <themekey>properties</themekey>
        <themekey>radiometer</themekey>
        <themekey>resolution</themekey>
        <themekey>science</themekey>
        <themekey>sea</themekey>
        <themekey>sea-wide</themekey>
        <themekey>seawifs</themekey>
        <themekey>sensor</themekey>
        <themekey>station</themekey>
        <themekey>thickness</themekey>
        <themekey>time</themekey>
        <themekey>trajectory</themekey>
        <themekey>trajectory_id</themekey>
        <themekey>very</themekey>
        <themekey>vhrr</themekey>
        <themekey>view</themekey>
        <themekey>wide</themekey>
        <themekey>zone</themekey>
      </theme>
      <theme>
        <themekt>CF Standard Name Table v70</themekt>
        <themekey>time</themekey>
        <themekey>latitude</themekey>
        <themekey>longitude</themekey>
        <themekey>altitude</themekey>
        <themekey>atmosphere_absorption_optical_thickness_due_to_ambient_aerosol_particles</themekey>
        <themekey>atmosphere_absorption_optical_thickness_due_to_ambient_aerosol_particles</themekey>
        <themekey>atmosphere_absorption_optical_thickness_due_to_ambient_aerosol_particles</themekey>
        <themekey>atmosphere_absorption_optical_thickness_due_to_ambient_aerosol_particles</themekey>
        <themekey>atmosphere_absorption_optical_thickness_due_to_ambient_aerosol_particles</themekey>
      </theme>
    </keywords>
    <accconst>None.</accconst>
    <useconst>These data were produced by NOAA and are not subject to copyright protection in the United States. NOAA waives any potential copyright and related rights in these data worldwide through the Creative Commons Zero 1.0 Universal Public Domain Dedication (CC0-1.0).</useconst>
    <ptcontac>
      <cntinfo>
        <cntorgp>
          <cntorg>NOAA</cntorg>
          <cntper>Coffman, Derek</cntper>
        </cntorgp>
        <cntpos>Unknown</cntpos>
        <cntaddr>
          <addrtype>Mailing and Physical Address</addrtype>
          <address>Unknown</address>
          <city>Unknown</city>
          <state>Unknown</state>
          <postal>Unknown</postal>
          <country>Unknown</country>
        </cntaddr>
        <cntvoice>Unknown</cntvoice>
        <cntemail>derek.coffman@noaa.gov</cntemail>
      </cntinfo>
    </ptcontac>
    <browse>
      <browsen>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.graph</browsen>
      <browsed>Web page to make a customized map or graph of the data</browsed>
      <browset>HTML</browset>
    </browse>
    <datacred>Contributor Name: Coffman, Derek/NOAA-PMEL/Address: 7600 Sand Pt. Wy. NE,Seattle,WA 98115 /email: derek.coffman@noaa.gov
    </datacred>
  </idinfo>
  <dataqual>
    <logic>Unknown</logic>
    <complete>Unknown</complete>
    <posacc>
      <horizpa>
        <horizpar>Unknown</horizpar>
      </horizpa>
      <vertacc>
        <vertaccr>Unknown</vertaccr>
      </vertacc>
    </posacc>
    <lineage>
      <procstep>
        <procdesc>Unknown</procdesc>
        <procdate>Unknown</procdate>
      </procstep>
    </lineage>
  </dataqual>
  <spdoinfo>
    <direct>Point</direct>
    <ptvctinf>
      <sdtstrm>
        <sdtstyp>String</sdtstyp>
      </sdtstrm>
    </ptvctinf>
  </spdoinfo>
  <distinfo>
    <distrib>
            <cntinfo>
              <cntorgp>
                <cntorg>NOAA/PMEL</cntorg>
                <cntper>Science Data Integration Group</cntper>
              </cntorgp>
              <cntpos>ERDDAP administrator</cntpos>
              <cntaddr>
                <addrtype>Mailing and Physical Address</addrtype>
                <address>7600 Sand Point way NE</address>
                <city>Seattle</city>
                <state>WA</state>
                <postal>98115</postal>
                <country>USA</country>
              </cntaddr>
              <cntvoice>+1 206-526-6744</cntvoice>
              <cntemail>ellen.koukel@noaa.gov</cntemail>
            </cntinfo>
    </distrib>
    <resdesc>ERDDAP, version 2.30.0: get metadata; download data; make graphs and maps.</resdesc>
    <distliab>These data were produced by NOAA and are not subject to copyright protection in the United States. NOAA waives any potential copyright and related rights in these data worldwide through the Creative Commons Zero 1.0 Universal Public Domain Dedication (CC0-1.0).</distliab>
    <stdorder>
      <digform>
        <digtinfo>
          <formname>.asc</formname>
          <formvern>1</formvern>
          <formspec>View OPeNDAP-style ISO-8859-1 comma-separated text. https://docs.opendap.org/index.php/UserGuideOPeNDAPMessages#ASCII_Service</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.croissant</formname>
          <formvern>1</formvern>
          <formspec>Download the dataset croissant schema. https://docs.mlcommons.org/croissant/docs/croissant-spec.html</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.csv</formname>
          <formvern>1</formvern>
          <formspec>Download a ISO-8859-1 comma-separated text table (line 1: names; line 2: units; ISO 8601 times). https://en.wikipedia.org/wiki/Comma-separated_values</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.csv0</formname>
          <formvern>1</formvern>
          <formspec>Download a ISO-8859-1 .csv file without column names or units. Times are ISO 8601 strings. https://en.wikipedia.org/wiki/Comma-separated_values</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.csvp</formname>
          <formvern>1</formvern>
          <formspec>Download a ISO-8859-1 .csv file with line 1: name (units). Times are ISO 8601 strings. https://en.wikipedia.org/wiki/Comma-separated_values</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.das</formname>
          <formvern>1</formvern>
          <formspec>View the dataset&#39;s metadata via an ISO-8859-1 OPeNDAP Dataset Attribute Structure (DAS). https://docs.opendap.org/index.php/UserGuideOPeNDAPMessages#Dataset_Attribute_Structure</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.dataTable</formname>
          <formvern>1</formvern>
          <formspec>A JSON file formatted for use with the Google Visualization client library (Google Charts). https://developers.google.com/chart/interactive/docs/reference#dataparam</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.dds</formname>
          <formvern>1</formvern>
          <formspec>View the dataset&#39;s structure via an ISO-8859-1 OPeNDAP Dataset Descriptor Structure (DDS). https://docs.opendap.org/index.php/UserGuideOPeNDAPMessages#Dataset_Descriptor_Structure</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.dods</formname>
          <formvern>1</formvern>
          <formspec>OPeNDAP clients use this to download the data in the DODS binary format. https://docs.opendap.org/index.php/UserGuideOPeNDAPMessages#Data_Transmission</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.esriCsv</formname>
          <formvern>1</formvern>
          <formspec>Download a ISO_8859_1 .csv file for ESRI&#39;s ArcGIS 9.x and below (separate date and time columns). https://support.esri.com/technical-article/000012745</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.fgdc</formname>
          <formvern>1</formvern>
          <formspec>View the dataset&#39;s UTF-8 FGDC .xml metadata. https://www.fgdc.gov/standards/projects/FGDC-standards-projects/metadata/base-metadata/index_html</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.geoJson</formname>
          <formvern>1</formvern>
          <formspec>Download longitude,latitude,otherColumns data as a UTF-8 GeoJSON .json file. http://wiki.geojson.org/Main_Page</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.htmlTable</formname>
          <formvern>1</formvern>
          <formspec>View a UTF-8 .html web page with the data in a table. Times are ISO 8601 strings. https://www.w3schools.com/html/html_tables.asp</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.iso19115</formname>
          <formvern>1</formvern>
          <formspec>View the dataset&#39;s ISO 19115/19139 UTF-8 .xml metadata using the version default for this server. https://en.wikipedia.org/wiki/Geospatial_metadata</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.iso19115_2</formname>
          <formvern>1</formvern>
          <formspec>View the dataset&#39;s ISO 19115-2/19139 UTF-8 .xml metadata. https://en.wikipedia.org/wiki/Geospatial_metadata</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.iso19115_3_2016</formname>
          <formvern>1</formvern>
          <formspec>View the dataset&#39;s ISO 19115-3:2016 UTF-8 .xml metadata. https://en.wikipedia.org/wiki/Geospatial_metadata</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.iso19139_2007</formname>
          <formvern>1</formvern>
          <formspec>View the dataset&#39;s ISO 19139:2007 UTF-8 .xml metadata. https://en.wikipedia.org/wiki/Geospatial_metadata</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.itx</formname>
          <formvern>1</formvern>
          <formspec>Download an ISO-8859-1 Igor Text File. Each response column becomes a wave. https://www.wavemetrics.net/doc/igorman/II-09&#37;20Data&#37;20Import&#37;20Export.pdf</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.json</formname>
          <formvern>1</formvern>
          <formspec>View a table-like UTF-8 JSON file (missing value = &#39;null&#39;; times are ISO 8601 strings). https://www.json.org/</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.jsonlCSV</formname>
          <formvern>1</formvern>
          <formspec>View a UTF-8 JSON Lines CSV file without column names (mv = &#39;null&#39;; times are ISO 8601 strings). https://jsonlines.org/</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
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      <digform>
        <digtinfo>
          <formname>.jsonlCSV1</formname>
          <formvern>1</formvern>
          <formspec>View a UTF-8 JSON Lines CSV file with column names on line 1 (mv = &#39;null&#39;; times are ISO 8601 strings). https://jsonlines.org/</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.jsonlKVP</formname>
          <formvern>1</formvern>
          <formspec>View a UTF-8 JSON Lines file with Key:Value pairs (missing value = &#39;null&#39;; times are ISO 8601 strings). https://jsonlines.org/</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.mat</formname>
          <formvern>1</formvern>
          <formspec>Download a MATLAB binary file. https://www.mathworks.com/</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.nc</formname>
          <formvern>1</formvern>
          <formspec>Download a flat, table-like, NetCDF-3 binary file with COARDS/CF/ACDD metadata. https://www.unidata.ucar.edu/software/netcdf/</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.ncCF</formname>
          <formvern>1</formvern>
          <formspec>Download a NetCDF-3 CF Discrete Sampling Geometries file (Contiguous Ragged Array). https://cfconventions.org/Data/cf-conventions/cf-conventions-1.8/cf-conventions.html#discrete-sampling-geometries</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.ncCFHeader</formname>
          <formvern>1</formvern>
          <formspec>View the UTF-8 header (the metadata) for the .ncCF file. https://linux.die.net/man/1/ncdump</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.ncCFMA</formname>
          <formvern>1</formvern>
          <formspec>Download a NetCDF-3 CF Discrete Sampling Geometries file (Multidimensional Array). https://www.ncei.noaa.gov/netcdf-templates</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.ncCFMAHeader</formname>
          <formvern>1</formvern>
          <formspec>View the UTF-8 header (the metadata) for the .ncCFMA file. https://linux.die.net/man/1/ncdump</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.ncHeader</formname>
          <formvern>1</formvern>
          <formspec>View the UTF-8 header (the metadata) for the NetCDF-3 .nc file. https://linux.die.net/man/1/ncdump</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.nccsv</formname>
          <formvern>1</formvern>
          <formspec>Download a NetCDF-3-like 7-bit ASCII NCCSV .csv file with COARDS/CF/ACDD metadata. https://erddap.github.io/docs/user/nccsv-1.20</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.nccsvMetadata</formname>
          <formvern>1</formvern>
          <formspec>View the dataset&#39;s metadata as the top half of a 7-bit ASCII NCCSV .csv file. https://erddap.github.io/docs/user/nccsv-1.20</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.ncoJson</formname>
          <formvern>1</formvern>
          <formspec>Download a UTF-8 NCO lvl=2 JSON file with COARDS/CF/ACDD metadata. https://nco.sourceforge.net/nco.html#json</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.odvTxt</formname>
          <formvern>1</formvern>
          <formspec>Download longitude,latitude,time,otherColumns as an ISO-8859-1 ODV Generic Spreadsheet File (.txt). https://odv.awi.de/en/documentation/</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.parquet</formname>
          <formvern>1</formvern>
          <formspec>Download as a parquet file. Metadata contains column names (&quot;column_names&quot;) and units (&quot;column_units&quot;). https://parquet.apache.org/</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.parquetWMeta</formname>
          <formvern>1</formvern>
          <formspec>Download as a parquet file with detailed metadata. https://parquet.apache.org/</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.tsv</formname>
          <formvern>1</formvern>
          <formspec>Download a ISO-8859-1 tab-separated text table (line 1: names; line 2: units; ISO 8601 times). https://jkorpela.fi/TSV.html</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.tsv0</formname>
          <formvern>1</formvern>
          <formspec>Download a ISO-8859-1 .tsv file without column names or units. Times are ISO 8601 strings. https://jkorpela.fi/TSV.html</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.tsvp</formname>
          <formvern>1</formvern>
          <formspec>Download a ISO-8859-1 .tsv file with line 1: name (units). Times are ISO 8601 strings. https://jkorpela.fi/TSV.html</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.wav</formname>
          <formvern>1</formvern>
          <formspec>Download a .wav audio file. All columns must be numeric and of the same type. https://en.wikipedia.org/wiki/WAV</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.xhtml</formname>
          <formvern>1</formvern>
          <formspec>View a UTF-8 XHTML (XML) file with the data in a table. Times are ISO 8601 strings. https://www.w3schools.com/html/html_tables.asp</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.html</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.kml</formname>
          <formvern>1</formvern>
          <formspec>View a .kml file, suitable for Google Earth. https://developers.google.com/kml/</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.graph</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.largePdf</formname>
          <formvern>1</formvern>
          <formspec>View a large .pdf image file with a graph or map. https://www.adobe.com/acrobat/about-adobe-pdf.html</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.graph</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.largePng</formname>
          <formvern>1</formvern>
          <formspec>View a large .png image file with a graph or map. http://www.libpng.org/pub/png/</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.graph</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.pdf</formname>
          <formvern>1</formvern>
          <formspec>View a standard, medium-sized .pdf image file with a graph or map. https://www.adobe.com/acrobat/about-adobe-pdf.html</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.graph</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.png</formname>
          <formvern>1</formvern>
          <formspec>View a standard, medium-sized .png image file with a graph or map. http://www.libpng.org/pub/png/</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.graph</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.smallPdf</formname>
          <formvern>1</formvern>
          <formspec>View a small .pdf image file with a graph or map. https://www.adobe.com/acrobat/about-adobe-pdf.html</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.graph</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.smallPng</formname>
          <formvern>1</formvern>
          <formspec>View a small .png image file with a graph or map. http://www.libpng.org/pub/png/</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.graph</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <digform>
        <digtinfo>
          <formname>.transparentPng</formname>
          <formvern>1</formvern>
          <formspec>View a .png image file (just the data, without axes, landmask, or legend). http://www.libpng.org/pub/png/</formspec>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_AEROSOLS99-INDOEX_RHBrown_aod4080.graph</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <fees>None</fees>
    </stdorder>
  </distinfo>
  <metainfo>
    <metd>20260616</metd>
    <metc>
            <cntinfo>
              <cntorgp>
                <cntorg>NOAA/PMEL</cntorg>
                <cntper>Science Data Integration Group</cntper>
              </cntorgp>
              <cntpos>ERDDAP administrator</cntpos>
              <cntaddr>
                <addrtype>Mailing and Physical Address</addrtype>
                <address>7600 Sand Point way NE</address>
                <city>Seattle</city>
                <state>WA</state>
                <postal>98115</postal>
                <country>USA</country>
              </cntaddr>
              <cntvoice>+1 206-526-6744</cntvoice>
              <cntemail>ellen.koukel@noaa.gov</cntemail>
            </cntinfo>
    </metc>
    <metstdn>Content Standard for Digital Geospatial Metadata</metstdn>
    <metstdv>FGDC-STD-012-2002</metstdv>
    <mettc>universal time</mettc>
    <metac>None.</metac>
    <metuc>These data were produced by NOAA and are not subject to copyright protection in the United States. NOAA waives any potential copyright and related rights in these data worldwide through the Creative Commons Zero 1.0 Universal Public Domain Dedication (CC0-1.0).</metuc>
  </metainfo>
</metadata>
