Project/Cruise: RITS 93

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  • VESSEL: NOAA ship Surveyor
  • DEPARTED: Punta Arenas, Chile on March 20, 1993
  • VIA:
    • Palmer Station, Antarctica on March 24-25, 1993
    • Tahiti on April 15-19, 1993
  • ARRIVED: Seattle, Washington on May 7, 1993

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.

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 Parameter Parameter Parameter Parameter Parameter Parameter
RITS93_atm_v10 ACF   IGOR   CDF   Ship Latitude Latitude Ship Ship Longitude Longitude Qualimetrics RTD sensor, atmospheric chemistry group AirTemp (C) Barometric Pressure Ship Bridge Barometer BaroP (mbar) Qualimetrics LiCl cell, atmospheric chemistry group RH (%) Insolation from Epply Radiometer SN12946 Insolation(Wm-2) Wind Speed from Qualimetrics Skyvane 2100, Ship Gyrocompass, GPS WindS (m/s) Wind Direction from Qualimetrics Skyvane 2100, Ship Gyrocompass, GPS WindD Eastward Wind from Qualimetrics Skyvane 2100, Ship Gyrocompass, GPS WindU (m/s) Northward Wind from Qualimetrics Skyvane 2100, Ship Gyrocompass, GPS WindV (m/s) Wind Speed relative to Ship from Qualimetrics Skyvane 2100 RelWindS (m/s) Wind Dirn relative to Bow (-90/0/+90 from port/ahead/starboard) RelWindD Ship Speed over Ground from GPS GPS-Speed (kt) Ship Course over Ground from GPS GPS-Course Aerosol Scattering Blue ScatBlue (Mm-1) Aerosol Scattering Green ScatGreen (Mm-1) Aerosol Scattering Red ScatRed (Mm-1) Condensation Nuclei Dp > 12 microns CN (cm-3) Ultrafine Condensation Nuclei Dp > 3 microns UFCN (cm-3) Ozone from Dasibi 1008 AH Ozone (ppb)
RITS93_sw_v10 ACF   IGOR   CDF   Sea Surface Temperature from Ship Thermosalinograph SST (C) Sea Surface Salinity from Ship Thermosalinograph SAL (psu) Nitrate in Seawater from Underway Autoanalzyer NO_3sw (uM) Discrete samples and underway continuous fluorescence Chl (ug/L)
RITS93_ch4co_v10 ACF   IGOR   CDF   CH4 in Air from PMEL GC System CH_4air (ppb) pCH4 in Air from PMEL GC System pCH_4air (uatm) CH4 in Seawater from PMEL GC System CH_4sw (nM) pCH4 in Seawater from PMEL GC System pCH_4sw (uatm) CO in Air from PMEL GC System COair (ppb) pCO in Air from PMEL GC System pCOair (uatm) CO in Seawater from PMEL GC System COsw (nM) pCO in Seawater from PMEL GC System pCOsw (uatm)
RITS93_dms_v10 ACF   IGOR   CDF   DMS in Air from PMEL DMS System DMSair (ppt) DMS in Seawater from PMEL DMS System DMSsw (nM)
RITS93_AERO-SUBMICRON_v0 ACF   IGOR   CDF   Submicron Aerosol Chloride from filter pack SubCl(ug/m3) Submicron Aerosol Bromide from filter pack SubBr(ug/m3) Submicron Aerosol Nitrate from filter pack SubNO3(ug/m3) Submicron Aerosol Sulfate from filter pack SubSO4(ug/m3) Submicron Aerosol Sodium from filter pack SubNa(ug/m3) Submicron Aerosol Ammonium from filter pack SubNH4(ug/m3) Submicron Aerosol Potassium from filter pack SubK(ug/m3) Submicron Aerosol Magnesium from filter pack SubMg(ug/m3) Submicron Aerosol Calcium from filter pack SubCa(ug/m3)
RITS93_AERO-GRAV_v0 ACF   IGOR   CDF   Submicron Aerosol Mass from 2-Stage Impactor SubMass(ug/m3)
RITS93_AOD_v0 ACF   IGOR   CDF   Aerosol Optical Depth at 391nm AOD_391 Aerosol Optical Depth at 500nm AOD_500

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