Project/Cruise: ICEALOT 2008

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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 Parameter Parameter Parameter
ICEALOT_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 Ship SCS, IMET sensor WindD Eastward Wind from Ship SCS, IMET sensor WindU,m/s Northward Wind from Ship SCS, IMET sensor WindV,m/s Wind Speed relative to Ship from Qualimetrics Skyvane 2100 RelWindS,m/s Wind Dirn relative to Bow (-90/0/+90 for port/ahead/starboard) RelWindD
ICEALOT_MET_v0 ACF   IGOR   CDF   ICT Ship RM Young sensor AirTemp,C Relative Humidity RH,% Barometric Pressure BaroP,mbar Insolation from Epply Radiometer Insolation,W/m2 Rainfall rate from optical sensor Rain,mm/hr
ICEALOT_SW_v0 ACF   IGOR   CDF   ICT Sea Surface Temperature from Thermosalinograph SST (C) Sea Surface Salinity from Thermosalinograph SAL (psu)
ICEALOT_CN_v0 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)
ICEALOT_O3SO2_v0 ACF   IGOR   CDF   ICT Atmospheric Ozone, 1 min Averages Ozone(ppb) SO2 from TECO 43C, 1 min Averages SO2(ppb)
ICEALOT_swDMS_v0 ACF   IGOR   CDF   ICT DMS in Seawater from PMEL DMS System DMSsw (nM)
ICEALOT_RADON_v0 ACF   IGOR   CDF   ICT Atmospheric Radon, 30 min Averages Radon (mBq m-3)
ICEALOT_IMP-OCEC_v0 ACF   IGOR   CDF   ICT Submicron Aerosol Organic Carbon from 2-Stage Impactor SubOC(ug/m3) Supermicron Aerosol Organic Carbon from 2-Stage Impactor SupOC(ug/m3) Submicron Aerosol Black (Elemental) Carbon from 2-Stage Impactor SubBC(ug/m3)
ICEALOT_AMS_v1 ACF   IGOR   CDF   ICT Non-Refractory Aerosol Sulfate - Aerosol Mass Spectrometer NR-SO4(ug/m3) Non-Refractory Aerosol Ammonium - Aerosol Mass Spectrometer NR-NH4(ug/m3) Non-Refractory Aerosol Nitrate- Aerosol Mass Spectrometer NR-NO3(ug/m3) Non-Refractory Aerosol Particulate Organic Matter - Aerosol Mass Spectrometer NR-POM(ug/m3)
ICEALOT_SUBSCAT30_v0 ACF   IGOR   CDF   ICT Light Scattering by Submicron Aerosols at <30%RH, Blue(450nm), 60 Sec Averages SubmSctB (Mm-1) Light Scattering by Submicron Aerosols at <30%RH, Green(550nm), 60 Sec Averages SubmSctG (Mm-1) Light Scattering by Submicron Aerosols at <30%RH, Red(700nm), 60 Sec Averages SubmSctR (Mm-1) Light Back Scattering by Submicron Aerosols at <30%RH, Blue(450nm), 60 Sec Averages SubBkSctB(Mm-1) Light Back Scattering by Submicron Aerosols at <30%RH, Green(550nm), 60 Sec Averages SubBkScatG(Mm-1) Light Back Scattering by Submicron Aerosols at <30%RH, Red(700nm), 60 Sec Averages SubBkScatR(Mm-1) Submicron Nephelometer Sample RH, 60 sec Averages SubMicronNeph RH, %
ICEALOT_TOTSCAT30_v0 ACF   IGOR   CDF   ICT Light Scattering by all Aerosols at <30% RH, Blue(450nm), 60 Sec Averages ScatBlue (Mm-1) Light Scattering by all Aerosols at <30% RH, Green(550nm), 60 Sec Averages ScatGreen (Mm-1) Light Scattering by all Aerosols at <30% RH, Red(700nm), 60 Sec Averages ScatRed (Mm-1) Light Back Scattering by all Aerosols at <30% RH, Blue(450nm), 60 Sec Averages BkSctBlue(Mm-1) Light Back Scattering by all Aerosols at <30% RH, Green(550nm), 60 Sec Averages BkSctGrn(Mm-1) Light Back Scattering by all Aerosols at <30% RH, Red(700nm), 60 Sec Averages BkSctRed(Mm-1) Nephelometer (sub 10 microns) Sample RH, 60 sec Averages Sub10Neph RH, %
ICEALOT_SUBSCATloRH_v0 ACF   IGOR   CDF   ICT Light Scattering by Submicron Aerosols at low (<25%) RH, Blue(450nm), 60 Sec Averages SubmSctBloRH(Mm-1) Light Scattering by Submicron Aerosols at low (<25%) RH, Green(550nm), 60 Sec Averages SubmSctGloRH(Mm-1) Light Scattering by Submicron Aerosols at low (<25%) RH, Red(700nm), 60 Sec Averages SubmSctRloRH(Mm-1) Light Back Scattering by Submicron Aerosols at low (<25%) RH, Blue(450nm), 60 Sec Averages SubBkSctBloRH(Mm-1) Light Back Scattering by Submicron Aerosols at low (<25%) RH, Green(550nm), 60 Sec Averages SubBkScatGloRH(Mm-1) Light Back Scattering by Submicron Aerosols at low (<25%) RH, Red(700nm), 60 Sec Averages SubBkScatRloRH(Mm-1) Submicron Nephelometer Sample RH, 60 sec Averages loRH Neph RH, %
ICEALOT_SUBSCAThiRH_v0 ACF   IGOR   CDF   ICT Light Scattering by Submicron Aerosols at high (~85%) RH, Blue(450nm), 60 Sec Averages SubmSctBhiRH(Mm-1) Light Scattering by Submicron Aerosols at high (~85%) RH, Green(550nm), 60 Sec Averages SubmSctGhiRH(Mm-1) Light Scattering by Submicron Aerosols at high (~85%) RH, Red(700nm), 60 Sec Averages SubmSctRhiRH(Mm-1) Light Back Scattering by Submicron Aerosols at high (~85%) RH, Blue(450nm), 60 Sec Averages SubBkSctBhiRH(Mm-1) Light Back Scattering by Submicron Aerosols at high (~85%) RH, Green(550nm), 60 Sec Averages SubBkScatGhiRH(Mm-1) Light Back Scattering by Submicron Aerosols at high (~85%) RH, Red(700nm), 60 Sec Averages SubBkScatRhiRH(Mm-1) Submicron Nephelometer Sample RH, 60 sec Averages hiRH Neph RH, %
ICEALOT_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
ICEALOT_SUBSCATANG_v0 ACF   IGOR   CDF   ICT Aerosol Light Scattering Ångström exponent (at 60%RH) by sub 1-micron Aerosols at wavelength range 450/550nm Sub1SAngB Aerosol Light Scattering Ångström exponent (at 60%RH) by sub 1-micron Aerosols at wavelength range 450/700nm Sub1SAngG Aerosol Light Scattering Ångström exponent (at 60%RH) by sub 1-micron Aerosols at wavelength range 450/550nm Sub1SAngR
ICEALOT_SUBSSA_v0 ACF   IGOR   CDF   ICT Aerosol Single Scatter Albedo (at <30%RH) by sub 1-micron Aerosols at 467nm Sub1ssaB Aerosol Single Scatter Albedo (at <30%RH) by sub 1-micron Aerosols at 530nm Sub1ssaG Aerosol Single Scatter Albedo (at <30%RH) by sub 1-micron Aerosols at 660nm Sub1ssaR
ICEALOT_TOTSSA_v0 ACF   IGOR   CDF   ICT Aerosol Single Scatter Albedo (at <30%RH) by sub 10-micron Aerosols at 467nm Sub10ssaB Aerosol Single Scatter Albedo (at <30%RH) by sub 10-micron Aerosols at 530nm Sub10ssaG Aerosol Single Scatter Albedo (at <30%RH) by sub 10-micron Aerosols at 660nm Sub10ssaR
ICEALOT_SUBFRH_v0 ACF   IGOR   CDF   ICT f(RH): Relative Humidity Dependence (25% to 85% RH) of Light Scattering by sub 1-micron Aerosols at 450nm Sub1fRHb f(RH): Relative Humidity Dependence (25% to 85% RH) of Light Scattering by sub 1-micron Aerosols at 550nm Sub1fRHg f(RH): Relative Humidity Dependence (25% to 85% RH) of Light Scattering by sub 1-micron Aerosols at 700nm Sub1fRHr
ICEALOT_AOD3803_v0 ACF   IGOR   CDF   ICT Aerosol Optical Depth at 380nm AOD-380 (3803) Aerosol Optical Depth at 440nm AOD-440 (3803) Aerosol Optical Depth at 500nm AOD-500 (3803) Aerosol Optical Depth at 675nm AOD-675 (3803) Aerosol Optical Depth at 870nm AOD-870 (3803) Solar Zenith Angle during AOD measurement SolarZenithAng (3803) Measurement AirMass in Atmosphers AirMass (3803)
ICEALOT_AOD4080_v0 ACF   IGOR   CDF   ICT Aerosol Optical Depth at 380nm AOD-380 (4080) Aerosol Optical Depth at 440nm AOD-440 (4080) Aerosol Optical Depth at 500nm AOD-500 (4080) Aerosol Optical Depth at 675nm AOD-675 (4080) Aerosol Optical Depth at 870nm AOD-870 (4080) Solar Zenith Angle during AOD measurement SolarZenithAng (4080) Measurement AirMass in Atmosphers AirMass (4080)
ICEALOT_AOD3774_v0 ACF   IGOR   CDF   ICT Aerosol Optical Depth at 440nm AOD-440 (3774) Aerosol Optical Depth at 500nm AOD-500 (3774) Aerosol Optical Depth at 675nm AOD-675 (3774) Aerosol Optical Depth at 870nm AOD-870 (3774) Solar Zenith Angle during AOD measurement SolarZenithAng (3774) Measurement AirMass in Atmosphers AirMass (3774)
ICEALOT_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)
ICEALOT_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 Bromide from 2-Stage Impactor SubBr(ug/m3) Supermicron Aerosol Bromide from 2-Stage Impactor SupBr(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) Submicron Aerosol non-seasalt Sulfate from 2-Stage Impactor SubnssSO4(ug/m3) Supermicron Aerosol non-seasalt Sulfate from 2-Stage Impactor SupnssSO4(ug/m3) Submicron Aerosol non-seasalt Oxalate from 2-Stage Impactor SubOxalate(ug/m3) Supermicron Aerosol non-seasalt Oxalate from 2-Stage Impactor SupOxalate(ug/m3)
ICEALOT_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)
ICEALOT_AERO-ELEM_v0 ACF   IGOR   CDF   ICT Submicron Aerosol Elemental Aluminum from 2-Stage Impactor SubElAl(ug/m3) Supermicron Aerosol Elemental Aluminum from 2-Stage Impactor SupElAl(ug/m3) Submicron Aerosol Elemental Silicon from 2-Stage Impactor SubElSi(ug/m3) Supermicron Aerosol Elemental Silicon from 2-Stage Impactor SupElSi(ug/m3) Submicron Aerosol Elemental Calcium from 2-Stage Impactor SubElCa(ug/m3) Supermicron Aerosol Elemental Calcium from 2-Stage Impactor SupElCa(ug/m3) Submicron Aerosol Elemental Titanium from 2-Stage Impactor SubElTi(ug/m3) Supermicron Aerosol Elemental Titanium from 2-Stage Impactor SupElTi(ug/m3) Submicron Aerosol Elemental Iron from 2-Stage Impactor SubElFe(ug/m3) Supermicron Aerosol Elemental Iron from 2-Stage Impactor SupElFe(ug/m3)
ICEALOT_CCN_v0 ACF   IGOR   CDF   ICT Cloud Condensation Nuclei Supersaturation CCN SuperSat(%) Cloud Condensation Nuclei CCN (cm-3) CCN/CN ratio CCN/CN ratio

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