Project/Cruise: ATOMIC - 2020

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The allocation of the variables in each file is shown in the table below. For all cruises the data are available in several formats and can be downloaded by clicking on the ACF IGOR CDF and/or ICT link in the download column.

The data are stored in a native ascii ACF format, defined by our group. The same data are also available as an IGOR text file (.itx). IGOR is a scientific graphing, data analysis package from Wavemetrics Inc. The plotting section of this site uses the ACF data converted into a binary netCDF file format. While not directly viewable the file may be downloaded by clicking on the "CDF" link. Projects starting in 2004 also have data available in the ICARTT data format. To download click on "ICT". The ICARTT files are ascii files that are based on the NASA AMES standard.

Most ASCII, netCDF, and ICARTT files for this cruise have a time resolution of 1 minute. If available, one second data files are listed under the link "ICT_1s". These one second data files in ICARTT format are zip compressed, but still large, of order 100 Mbytes.

Some data files from recent cruises may be password protected. To obtain a password, please contact Jim Johnson or Timothy Bates.

Moving the cursor over an "Info Icon" and/or clicking provides additional information on the variables.

Filename Download Parameter Parameter Parameter Parameter Parameter Parameter Parameter Parameter Parameter Parameter Parameter
ATOMIC_NAVWIND_v0 ACF   IGOR   CDF   ICT Ship Latitude at 1 Minute Interval Latitude Ship Ship Longitude at 1 Minute Interval Longitude Ship Speed over Ground from PMEL GPS GPS-Speed (kt) Ship Course over Ground, Direction ship is moving GPS-Course GyroCompass Heading, Direction ship's bow is pointing GyroCompass True Wind Speed from Ship SCS, IMET sensor WindS,m/s Wind Direction from PSD and PMEL anemometers WindD Eastward Wind from PSD and PMEL anemometers WindU,m/s Northward Wind from PSD and PMEL anemometers WindV,m/s Wind Speed relative to Ship from PMEL WX520 RelWindS,m/s Wind Dir relative to Bow (-90/0/+90 for port/ahead/starboard) RelWindD
ATOMIC_MET_v0 ACF   IGOR   CDF   ICT Ship WXT520 sensor AirTemp,C Relative Humidity RH,% Barometric Pressure BaroP,mbar Insolation from Epply Radiometer Insolation,W/m2 Rainfall rate from WXT520 sensor Rain,mm/hr
ATOMIC_SW_v0 ACF   IGOR   CDF   ICT Sea Surface Temperature from hull mounted temperature probe SST (C) Sea Surface Salinity from Thermosalinograph SAL (psu) Chlorophyll Chloro (ug L-1)
ATOMIC_CN_v1 ACF   IGOR   CDF   ICT Condensation Nuclei Dp > 13 microns, 1 min Averages CN>13 (cm-3) Ultrafine Condensation Nuclei Dp > 5 microns, 1 min Averages UFCN (cm-3)
ATOMIC_O3_v0 ACF   IGOR   CDF   ICT Atmospheric Ozone, 1 min Averages Ozone(ppb)
ATOMIC_RADON_v0 ACF   IGOR   CDF   ICT Atmospheric Radon, 30 min Averages Radon (mBq m-3)
ATOMIC_IMP-OCEC_v0 ACF   IGOR   CDF   ICT Submicron Aerosol Organic Carbon from Impactor SubOC(ug/m3) Supermicron Aerosol Organic Carbon from Impactor SupOC(ug/m3) Submicron Aerosol Black (Elemental) Carbon  from 2-Stage Impactor SubBC(ug/m3)
ATOMIC_SUBSCAT60_v0 ACF   IGOR   CDF   ICT Light Scattering by Submicron Aerosols in ambient air at ~60%RH, Blue(450nm), 60 Sec Averages SubmSctB (Mm-1) Light Scattering by Submicron Aerosols in ambient air at ~60%RH, Green(550nm), 60 Sec Averages SubmSctG (Mm-1) Light Scattering by Submicron Aerosols in ambient air at ~60%RH, Red(700nm), 60 Sec Averages SubmSctR (Mm-1) Submicron Nephelometer Sample RH, 60 sec Averages SubMicronNeph RH, %
ATOMIC_TOTSCAT60_v0 ACF   IGOR   CDF   ICT Light Scattering by all Aerosols at ~60% RH, Blue(450nm), 60 Sec Averages ScatBlue (Mm-1) Light Scattering by all Aerosols at ~60% RH, Green(550nm), 60 Sec Averages ScatGreen (Mm-1) Light Scattering by all Aerosols at ~60% RH, Red(700nm), 60 Sec Averages ScatRed (Mm-1) Nephelometer (sub 10 microns) Sample RH, 60 sec Averages Sub10Neph RH, %
ATOMIC_PSAP_v0 ACF   IGOR   CDF   ICT Light Absorbtion by submicron Aerosols, Blue, 1 min Averages sub1AAbsrb blue Mm-1 Light Absorbtion by submicron Aerosols, Green, 1 min Averages sub1AAbsrb green Mm-1 Light Absorbtion by submicron Aerosols, Red, 1 min Averages sub1AAbsrb red Mm-1 Light Absorbtion by submicron Aerosols, Blue, 1 min Averages sub10AAbsrb blue Mm-1 Lqight Absorbtion by submicron Aerosols, Green, 1 min Averages sub10AAbsrb green Mm-1 Light Absorbtion by submicron Aerosols, Red, 1 min Averages sub10AAbsrb red Mm-1
ATOMIC_SUBSCATANG_v0 ACF   IGOR   CDF   ICT Aerosol Light Scattering Angstrom exponent (at 60%RH) by sub 1-micron Aerosols at wavelength range 450/550nm Sub1SAngB Aerosol Light Scattering Angstrom exponent (at 60%RH) by sub 1-micron Aerosols at wavelength range 450/700nm Sub1SAngG Aerosol Light Scattering Angstrom exponent (at 60%RH) by sub 1-micron Aerosols at wavelength range 450/550nm Sub1SAngR
ATOMIC_TOTSCATANG_v0 ACF   IGOR   CDF   ICT Aerosol Light Scattering Angstrom exponent in ambient air (at ~60%RH) by sub 10-micron Aerosols at wavelength range 450/550nm Sub10SAngB Aerosol Light Scattering Angstrom exponent in ambient air (at ~60%RH) by sub 10-micron Aerosols at wavelength range 450/700nm Sub10SAngG Aerosol Light Scattering Angstrom exponent in ambient air (at ~60%RH) by sub 10-micron Aerosols at wavelength range 450/550nm Sub10SAngR
ATOMIC_SUBABSANG_v0 ACF   IGOR   CDF   ICT Aerosol Light Absorption Angstrom exponent in (at 60%RH) by sub 1-micron Aerosols at wavelength range 467/530nm Sub1AAngB Aerosol Light Absorption Angstrom exponent (at 60%RH) by sub 1-micron Aerosols at wavelength range 467/660nm Sub1AAngG Aerosol Light Absorption Angstrom exponent (at 60%RH) by sub 1-micron Aerosols at wavelength range 530/660nm Sub1AAngR
ATOMIC_TOTABSANG_v0 ACF   IGOR   CDF   ICT Aerosol Light Absorption Angstrom exponent (at 60%RH) by sub 10-micron Aerosols at wavelength range 467/530nm Sub10AAngB Aerosol Light Absorption Angstrom exponent (at 60%RH) by sub 10-micron Aerosols at wavelength range 467/660nm Sub10AAngG Aerosol Light Absorption Angstrom exponent (at 60%RH) by sub 10-micron Aerosols at wavelength range 530/660nm Sub10AAngR
ATOMIC_SUBSSA_v0 ACF   IGOR   CDF   ICT Aerosol Single Scatter Albedo in ambient air (at ~60%RH) by sub 1-micron Aerosols at 467nm Sub1ssaB Aerosol Single Scatter Albedo in ambient air (at ~60%RH) by sub 1-micron Aerosols at 530nm Sub1ssaG Aerosol Single Scatter Albedo in ambient air (at ~60%RH) by sub 1-micron Aerosols at 660nm Sub1ssaR
ATOMIC_TOTSSA_v0 ACF   IGOR   CDF   ICT Aerosol Single Scatter Albedo (at ~60%RH) by sub 10-micron Aerosols at 467nm Sub10ssaB Aerosol Single Scatter Albedo (at ~60%RH) by sub 10-micron Aerosols at 530nm Sub10ssaG Aerosol Single Scatter Albedo (at ~60%RH) by sub 10-micron Aerosols at 660nm Sub10ssaR
ATOMIC_SUBFRH_v0 ACF   IGOR   CDF   ICT Light Scattering by Submicron Aerosols at low (<25%) RH in ambient air, Green(550nm), 60 Sec Averages SubmSctGloRH(Mm-1) Light Scattering by Submicron Aerosols at high (~85%) RH, Green(550nm), 60 Sec Averages SubmSctGhiRH(Mm-1) Submicron Nephelometer Sample RH, 60 sec Averages loRH Neph RH, % Submicron Nephelometer Sample RH, 60 sec Averages hiRH Neph RH, % f(RH): Relative Humidity Dependence (25% to 85% RH) of Light Scattering by sub 1-micron Aerosols at 550nm Sub1fRHg
ATOMIC_AOD_v1 ACF   IGOR   CDF   ICT Aerosol Optical Depth at 380nm AOD-380 Aerosol Optical Depth at 440nm AOD-440 Aerosol Optical Depth at 500nm AOD-500 Aerosol Optical Depth at 675nm AOD-675 Aerosol Optical Depth at 870nm AOD-870 Measurement AirMass in Atmosphers AirMass
ATOMIC_AERO-CAT_v0 ACF   IGOR   CDF   ICT Submicron Aerosol Sodium from 2-Stage Impactor SubNa(ug/m3) Supermicron Aerosol Sodium from 2-Stage Impactor SupNa(ug/m3) Submicron Aerosol Ammonium from 2-Stage Impactor SubNH4(ug/m3) Supermicron Aerosol Ammonium from 2-Stage Impactor SupNH4(ug/m3) Submicron Aerosol Potassium from 2-Stage Impactor SubK(ug/m3) Supermicron Aerosol Potassium from 2-Stage Impactor SupK(ug/m3) Submicron Aerosol Magnesium from 2-Stage Impactor SubMg(ug/m3) Supermicron Aerosol Magnesium from 2-Stage Impactor SupMg(ug/m3) Submicron Aerosol Calcium from 2-Stage Impactor SubCa(ug/m3) Supermicron Aerosol Calcium from 2-Stage Impactor SupCa(ug/m3)
ATOMIC_AERO-AN_v0 ACF   IGOR   CDF   ICT Submicron Aerosol Methane Sulfonic Acid from 2-Stage Impactor SubMSA(ug/m3) Supermicron Aerosol Methane Sulfonic Acid from 2-Stage Impactor SupMSA(ug/m3) Submicron Aerosol Chloride from 2-Stage Impactor SubCl(ug/m3) Supermicron Aerosol Chloride from 2-Stage Impactor SupCl(ug/m3) Submicron Aerosol Nitrate from 2-Stage Impactor SubNO3(ug/m3) Supermicron Aerosol Nitrate from 2-Stage Impactor SupNO3(ug/m3) Submicron Aerosol Sulfate from 2-Stage Impactor SubSO4(ug/m3) Supermicron Aerosol Sulfate from 2-Stage Impactor SupSO4(ug/m3)
ATOMIC_AERO-GRAV_v0 ACF   IGOR   CDF   ICT Submicron Aerosol Mass from 2-Stage Impactor SubMass(ug/m3) Supermicron Aerosol Mass from 2-Stage Impactor SupMass(ug/m3)
ATOMIC_AERO-ELEM_v1 ACF   IGOR   CDF   ICT Sub 1.1 micron Aerosol Elemental Aluminum from 2-Stage Impactor Sub1_El_Al(ug/m3) Sub 10 micron Aerosol Elemental Aluminum from 2-Stage Impactor sub10_El_Al(ug/m3) Sub 1.1 micron Aerosol Elemental Silicon from 2-Stage Impactor Sub1_El_Si(ug/m3) Sub 10 micron Aerosol Elemental Silicon from 2-Stage Impactor Sub10_El_Si(ug/m3) Submicron Aerosol non-seasalt Elemental Calcium from 2-Stage Impactor Sub1_El_nssCa(ug/m3) Sub10micron Aerosol Elemental Calcium from 2-Stage Impactor Sub10_El_nssCa(ug/m3) Sub 1.1 micron Aerosol Elemental Titanium from 2-Stage Impactor Sub1_El_Ti(ug/m3) Sub10micron Aerosol Elemental Titanium from 2-Stage Impactor Sub10_El_Ti(ug/m3) Sub 1.1 micron Aerosol Elemental Iron from 2-Stage Impactor Sub1_El_Fe(ug/m3) Sub 10 micron Aerosol Elemental Iron from 2-Stage Impactor Sub10_El_Fe(ug/m3)
ATOMIC_CCN_v0 ACF   IGOR   CDF   ICT Cloud Condensation Nuclei CCN (cm-3) SeaSweep Condensation Nuclei Dp > 13 microns, CN>13 (cm-3) CCN/CN ratio CCN/CN ratio Cloud Condensation Nuclei Supersaturation CCN SuperSat(%)

U.S.Dept of Commerce / NOAA / OAR / PMEL / Atmospheric Chemistry