PMEL Atmospheric Chemistry WACS Aerosol Size Distribution (DMPS) data

Project: WACS Name: Coffman, Derek Email: derek.coffman@noaa.gov Institution: NOAA InfoURL: https://www.pmel.noaa.gov/acg/data/index.html Source URL: (local files) PMEL Atmospheric Chemistry WACS Aerosol Size Distribution (DMPS) data Unknown tabular digital data Seattle, WA, USA ERDDAP, version 2.30.0, at NOAA/PMEL https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.graph https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.subset WACS Pacific Marine Environmental Laboratory (PMEL) Size Distributions Aerosol inlet: Ambient aerosol particles were sampled at 18 m above sea level through a heated mast. The mast extended 5 m above and forward of the aerosol measurement container. The inlet was a rotating cone-shaped nozzle that was automatically positioned into the relative wind to maintain nominally isokinetic flow and minimize the loss of supermicrometer particles. Air entered the inlet through a 5 cm diameter hole, passed through a 7 degree expansion cone, and then into the 20 cm inner diameter sampling mast. The flow through the mast was 1 m3 min-1. The transmission efficiency of the inlet for particles with aerodynamic diameters less than 6.5 um (the largest size tested) is greater than 95% [Bates et al., 2002]. The bottom 1.5 m of the mast were heated to establish a stable reference relative humidity (RH) for the sample air controlled to the indicated target sample RH. Twenty one 1.6 cm inner diameter stainless steel tubes extending into the heated portion of the mast were connected to downstream aerosol instrumentation with either conductive silicon tubing or stainless steel tubing for analysis of organic aerosol. DMPS (datasets denoted by _aerosol_sizedist_dmps_): One of the twenty one 1.6 cm diameter tubes was used to supply ambient air to a tandem DMPS system that measured particle size distributions in the range of 0.020 to 0.8 micrometers Stokes diameter. The tandem DMPS consists of an "Aitken" DMPS (0.020 to 0.2 um) and an "Accumulation" DMPS (0.2 to 0.8 um). The distributions have been cleaned of all data from times of instrument malfunction or calibration. APS (datasets denoted by _aerosol_sizedist_aps_): One of the twenty one 1.6 cm diameter tubes was used to supply ambient air to an APS that measured particle size distributions in the range of 0.96 to 10 micrometers Stokes diameter. The APS diameters are aerodynamic and have not been corrected to Stokes diameter via calculation or estimates of particle density. The APS data larger than 10 micrometers are not useful due to significant particle losses in the inlets including the ship's sampling mast, distribution tubing and APS inlet. The distributions have been cleaned of all data from times of instrument malfunction or calibration. Merged (datasets denoted by _aerosol_sizedist): These datasets include particle size distributions in the diameter range of 0.005 to 10 micrometers Stokes diameter. The distributions are a combination of DMPS and APS size distribution data where the APS diameters have been converted to Stokes diameters using densities calculated from measured chemistry. The diameter channels in the overlap region were chosen in the following manner: the last DMPS channel was discarded and, after converting to Stokes diameters, the first APS diameter channel that was larger than the last valid DMPS channel was chosen as the first APS channel. Each combined distribution was regridded onto a common set of diameters. Finally, the regridded distributions were cleaned to eliminate values at the larger sizes from the APS where "phantom" counts resulted in a spurious coarse mode in the surface and volume distributions. All datasets include number size distributions (normalized and non-normalized) as well as the higher moments for each: surface area and volume. Additional datasets may be included for a give project that include: - ambient (_ambient_): includes size distributions shifted to ambient RH using gRH factors - filter (_filter_): includes size distributions where additional cleaning was performed for periods of unstable CN concentrations Unknown https://www.pmel.noaa.gov/acg/data/index.html 20120820 20120828 ground condition Complete As needed -67.429344 -64.160355 41.945553 33.274246 GCMD Science Keywords above aerosol altitude area atmosphere atmospheric bin chemistry data datetime diameter distribution dlogDp dmps dNdlogDp dSdlogDp duration dVdlogDp earth Earth Science > Atmosphere > Altitude > Station Height environmental height identifier laboratory latitude level log log-normal longitude marine mean midpoint noaa normal normalized number pacific particle pmel science sea size station statistics stokes surface time trajectory trajectory_id volume wacs width CF Standard Name Table v70 time latitude longitude altitude None. 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). NOAA Coffman, Derek Unknown Mailing and Physical Address

Unknown

Unknown Unknown Unknown Unknown Unknown derek.coffman@noaa.gov https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.graph Web page to make a customized map or graph of the data HTML Unknown Unknown Unknown Unknown Unknown Unknown Point String NOAA/PMEL Science Data Integration Group ERDDAP administrator Mailing and Physical Address

7600 Sand Point way NE

Seattle WA 98115 USA +1 206-526-6744 ellen.koukel@noaa.gov ERDDAP, version 2.30.0: get metadata; download data; make graphs and maps. 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). .asc 1 View OPeNDAP-style ISO-8859-1 comma-separated text. https://docs.opendap.org/index.php/UserGuideOPeNDAPMessages#ASCII_Service https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .croissant 1 Download the dataset croissant schema. https://docs.mlcommons.org/croissant/docs/croissant-spec.html https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .csv 1 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 https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .csv0 1 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 https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .csvp 1 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 https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .das 1 View the dataset's metadata via an ISO-8859-1 OPeNDAP Dataset Attribute Structure (DAS). https://docs.opendap.org/index.php/UserGuideOPeNDAPMessages#Dataset_Attribute_Structure https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .dataTable 1 A JSON file formatted for use with the Google Visualization client library (Google Charts). https://developers.google.com/chart/interactive/docs/reference#dataparam https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .dds 1 View the dataset's structure via an ISO-8859-1 OPeNDAP Dataset Descriptor Structure (DDS). https://docs.opendap.org/index.php/UserGuideOPeNDAPMessages#Dataset_Descriptor_Structure https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .dods 1 OPeNDAP clients use this to download the data in the DODS binary format. https://docs.opendap.org/index.php/UserGuideOPeNDAPMessages#Data_Transmission https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .esriCsv 1 Download a ISO_8859_1 .csv file for ESRI's ArcGIS 9.x and below (separate date and time columns). https://support.esri.com/technical-article/000012745 https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .fgdc 1 View the dataset's UTF-8 FGDC .xml metadata. https://www.fgdc.gov/standards/projects/FGDC-standards-projects/metadata/base-metadata/index_html https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .geoJson 1 Download longitude,latitude,otherColumns data as a UTF-8 GeoJSON .json file. http://wiki.geojson.org/Main_Page https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .htmlTable 1 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 https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .iso19115 1 View the dataset's ISO 19115/19139 UTF-8 .xml metadata using the version default for this server. https://en.wikipedia.org/wiki/Geospatial_metadata https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .iso19115_2 1 View the dataset's ISO 19115-2/19139 UTF-8 .xml metadata. https://en.wikipedia.org/wiki/Geospatial_metadata https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .iso19115_3_2016 1 View the dataset's ISO 19115-3:2016 UTF-8 .xml metadata. https://en.wikipedia.org/wiki/Geospatial_metadata https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .iso19139_2007 1 View the dataset's ISO 19139:2007 UTF-8 .xml metadata. https://en.wikipedia.org/wiki/Geospatial_metadata https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .itx 1 Download an ISO-8859-1 Igor Text File. Each response column becomes a wave. https://www.wavemetrics.net/doc/igorman/II-09%20Data%20Import%20Export.pdf https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .json 1 View a table-like UTF-8 JSON file (missing value = 'null'; times are ISO 8601 strings). https://www.json.org/ https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .jsonlCSV 1 View a UTF-8 JSON Lines CSV file without column names (mv = 'null'; times are ISO 8601 strings). https://jsonlines.org/ https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .jsonlCSV1 1 View a UTF-8 JSON Lines CSV file with column names on line 1 (mv = 'null'; times are ISO 8601 strings). https://jsonlines.org/ https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .jsonlKVP 1 View a UTF-8 JSON Lines file with Key:Value pairs (missing value = 'null'; times are ISO 8601 strings). https://jsonlines.org/ https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .mat 1 Download a MATLAB binary file. https://www.mathworks.com/ https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .nc 1 Download a flat, table-like, NetCDF-3 binary file with COARDS/CF/ACDD metadata. https://www.unidata.ucar.edu/software/netcdf/ https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .ncCF 1 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 https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .ncCFHeader 1 View the UTF-8 header (the metadata) for the .ncCF file. https://linux.die.net/man/1/ncdump https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .ncCFMA 1 Download a NetCDF-3 CF Discrete Sampling Geometries file (Multidimensional Array). https://www.ncei.noaa.gov/netcdf-templates https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .ncCFMAHeader 1 View the UTF-8 header (the metadata) for the .ncCFMA file. https://linux.die.net/man/1/ncdump https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .ncHeader 1 View the UTF-8 header (the metadata) for the NetCDF-3 .nc file. https://linux.die.net/man/1/ncdump https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .nccsv 1 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 https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .nccsvMetadata 1 View the dataset's metadata as the top half of a 7-bit ASCII NCCSV .csv file. https://erddap.github.io/docs/user/nccsv-1.20 https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .ncoJson 1 Download a UTF-8 NCO lvl=2 JSON file with COARDS/CF/ACDD metadata. https://nco.sourceforge.net/nco.html#json https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .odvTxt 1 Download longitude,latitude,time,otherColumns as an ISO-8859-1 ODV Generic Spreadsheet File (.txt). https://odv.awi.de/en/documentation/ https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .parquet 1 Download as a parquet file. Metadata contains column names ("column_names") and units ("column_units"). https://parquet.apache.org/ https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .parquetWMeta 1 Download as a parquet file with detailed metadata. https://parquet.apache.org/ https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .tsv 1 Download a ISO-8859-1 tab-separated text table (line 1: names; line 2: units; ISO 8601 times). https://jkorpela.fi/TSV.html https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .tsv0 1 Download a ISO-8859-1 .tsv file without column names or units. Times are ISO 8601 strings. https://jkorpela.fi/TSV.html https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .tsvp 1 Download a ISO-8859-1 .tsv file with line 1: name (units). Times are ISO 8601 strings. https://jkorpela.fi/TSV.html https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .wav 1 Download a .wav audio file. All columns must be numeric and of the same type. https://en.wikipedia.org/wiki/WAV https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .xhtml 1 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 https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.html .kml 1 View a .kml file, suitable for Google Earth. https://developers.google.com/kml/ https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.graph .largePdf 1 View a large .pdf image file with a graph or map. https://www.adobe.com/acrobat/about-adobe-pdf.html https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.graph .largePng 1 View a large .png image file with a graph or map. http://www.libpng.org/pub/png/ https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.graph .pdf 1 View a standard, medium-sized .pdf image file with a graph or map. https://www.adobe.com/acrobat/about-adobe-pdf.html https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.graph .png 1 View a standard, medium-sized .png image file with a graph or map. http://www.libpng.org/pub/png/ https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.graph .smallPdf 1 View a small .pdf image file with a graph or map. https://www.adobe.com/acrobat/about-adobe-pdf.html https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.graph .smallPng 1 View a small .png image file with a graph or map. http://www.libpng.org/pub/png/ https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.graph .transparentPng 1 View a .png image file (just the data, without axes, landmask, or legend). http://www.libpng.org/pub/png/ https://data.pmel.noaa.gov/pmel/erddap/tabledap/ACG_WACS_RHBrown_aerosol_sizedist_dmps.graph None 20260505 NOAA/PMEL Science Data Integration Group ERDDAP administrator Mailing and Physical Address

7600 Sand Point way NE

Seattle WA 98115 USA +1 206-526-6744 ellen.koukel@noaa.gov Content Standard for Digital Geospatial Metadata FGDC-STD-012-2002 universal time None. 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).