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Dataset Title:	NOAA Coral Reef Watch 25km Ocean Acidification, Caribbean, Preliminary, 0.25°, 2016-present
Institution:	USDOC/NOAA Coral Reef Watch (Dataset ID: noaa_aoml_ced8_c051_08bd)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Data Access Form

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time (UTC)

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latitude (degrees_north)

longitude (degrees_east)

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.4516064e+9, 1.6955136e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 14.875, 30.125;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String source_name "y";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -90.125, -59.875;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String source_name "x";
    String standard_name "longitude";
    String units "degrees_east";
  }
  SST {
    Float32 _FillValue NaN;
    Float32 actual_range 26.46, 31.58;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String coordsys "geographic";
    String ioos_category "Temperature";
    String long_name "NOAA Coral Reef Watch Experimental Ocean Acidification Product Suite - NOAA OI AVHRR-AMSRE SST 25km";
    String standard_name "sea_surface_temperature";
    String units "degree_C";
    String variable_info "The values in this variable array and in the valid_range attribute are in the units of x100 degrees Celsius. The data values should be multiplied by the value (=0.01) contained in thescale_factor attribute to obtain the actual values in the units of degrees Celsius.";
  }
  SSS {
    Float32 _FillValue NaN;
    Float32 actual_range 32.26823, 37.201817;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String coordsys "geographic";
    String ioos_category "Salinity";
    String long_name "NOAA Coral Reef Watch Experimental Ocean Acidification Product Suite - IASNFS SSS interpolated to 25km";
    String standard_name "sea_water_practical_salinity";
    String units "PSU";
    String variable_info "The values in this variable array and in the valid_range attribute are in the units of x100 psu . The data values should be multiplied by the value (=0.01) contained in thescale_factor attribute to obtain the actual values in the units of .psu";
  }
  pCO2sw {
    Float32 _FillValue NaN;
    Float32 actual_range 393.925, 463.45;
    Float64 colorBarMaximum 440.0;
    Float64 colorBarMinimum 340.0;
    String coordsys "geographic";
    String ioos_category "CO2";
    String long_name "NOAA Coral Reef Watch Experimental Ocean Acidification Product Suite - pCO2sw 25km";
    String units "uatm";
    String variable_info "The values in this variable array and in the valid_range attribute are in the units of x10 uatm . The data values should be multiplied by the value (=0.1) contained in thescale_factor attribute to obtain the actual values in the units of uatm .  The values are modeled according to Gledhill et al., 2008";
  }
  TA {
    Float32 _FillValue NaN;
    Float32 actual_range 2152.12, 2434.68;
    Float64 colorBarMaximum 2500.0;
    Float64 colorBarMinimum 2100.0;
    String coordsys "geographic";
    String ioos_category "CO2";
    String long_name "NOAA Coral Reef Watch Experimental Ocean Acidification Product Suite - Total Alkalinity (TA) 25km";
    String units "µmole/kg";
    String variable_info "The values in this variable array and in the valid_range attribute are in the units of x10umol/kg . The data values should be multiplied by the value (=0.1) contained in thescale_factor attribute to obtain the actual values in the units of .umol/kg .  The values are modeled according to Gledhill et al., 2008 and depend on the tropical/subtropical algorthim offered by Lee et al. 2006";
  }
  TC {
    Float32 _FillValue NaN;
    Float32 actual_range 1887.33, 2076.27;
    Float64 colorBarMaximum 2150.0;
    Float64 colorBarMinimum 1900.0;
    String coordsys "geographic";
    String ioos_category "Ocean Color";
    String long_name "NOAA Coral Reef Watch Experimental Ocean Acidification Product Suite - Total Inorganic Carbon (TC) 25km";
    String units "µmole/kg";
    String variable_info "The values in this variable array and in the valid_range attribute are in the units of x10umol/kg . The data values should be multiplied by the value (=0.1) contained in thescale_factor attribute to obtain the actual values in the units of .umol/kg .  The values are modeled according to Gledhill et al., 2008.  Fields of TA & fCO2sw were  were coupled to solve for the carbonic acid system using the CO2SYS program (Lewis & Wallace, 1998).  Constants: K1,K2 from Mehrbach et al, 1973 refit by Dickson & Millero, 1987;  fCO2 (versus pCO2); KSO4 from Dickson; pH = total scale";
  }
  pH {
    Float32 _FillValue NaN;
    Float32 actual_range 7.975233, 8.031033;
    Float64 colorBarMaximum 9.0;
    Float64 colorBarMinimum 7.0;
    String coordsys "geographic";
    String ioos_category "Salinity";
    String long_name "NOAA Coral Reef Watch Experimental Ocean Acidification Product Suite - pH 25km";
    String standard_name "sea_water_ph_reported_on_total_scale";
    String units "Total Scale";
    String variable_info "The values in this variable array and in the valid_range attribute are in the units of x100Total Scale. The data values should be multiplied by the value (=0.01) contained in thescale_factor attribute to obtain the actual values in the units of .Total Scale.  The values are modeled according to Gledhill et al., 2008.  Fields of TA & fCO2sw were  were coupled to solve for the carbonic acid system using the CO2SYS program (Lewis & Wallace, 1998).  Constants: K1,K2 from Mehrbach et al, 1973 refit by Dickson & Millero, 1987;  fCO2 (versus pCO2); KSO4 from Dickson; pH = total scale";
  }
  SSA {
    Float32 _FillValue NaN;
    Float32 actual_range 3.0550091, 4.1156883;
    Float64 colorBarMaximum 4.0;
    Float64 colorBarMinimum 2.0;
    String coordsys "geographic";
    String ioos_category "Location";
    String long_name "NOAA Coral Reef Watch Experimental Ocean Acidification Product Suite - Saturation State (argonite) 25km";
    String units "Omega";
    String variable_info "The values in this variable array and in the valid_range attribute are in the units of x100Omega . The data values should be multiplied by the value (=0.01) contained in thescale_factor attribute to obtain the actual values in the units of .Omega .  The values are modeled according to Gledhill et al., 2008.  Fields of TA & fCO2sw were  were coupled to solve for the carbonic acid system using the CO2SYS program (Lewis & Wallace, 1998).  Constants: K1,K2 from Mehrbach et al, 1973 refit by Dickson & Millero, 1987;  fCO2 (versus pCO2); KSO4 from Dickson; pH = total scale";
  }
  HCO3 {
    Float32 _FillValue NaN;
    Float32 actual_range 1692.15, 1809.57;
    Float64 colorBarMaximum 1900.0;
    Float64 colorBarMinimum 1700.0;
    String coordsys "geographic";
    String ioos_category "CO2";
    String long_name "NOAA Coral Reef Watch Experimental Ocean Acidification Product Suite - Bicarbonate Ion Concentration (HCO3-) 25km";
    String units "µmole/kg";
    String variable_info "The values in this variable array and in the valid_range attribute are in the units of x10umol/kg . The data values should be multiplied by the value (=0.1) contained in thescale_factor attribute to obtain the actual values in the units of .umol/kg .  The values are modeled according to Gledhill et al., 2008.  Fields of TA & fCO2sw were  were coupled to solve for the carbonic acid system using the CO2SYS program (Lewis & Wallace, 1998).  Constants: K1,K2 from Mehrbach et al, 1973 refit by Dickson & Millero, 1987;  fCO2 (versus pCO2); KSO4 from Dickson; pH = total scale";
  }
  CO3 {
    Float32 _FillValue NaN;
    Float32 actual_range 184.452, 255.593;
    Float64 colorBarMaximum 260.0;
    Float64 colorBarMinimum 140.0;
    String coordsys "geographic";
    String ioos_category "CO2";
    String long_name "NOAA Coral Reef Watch Experimental Ocean Acidification Product Suite - Carbonate Ion Concentration (CO3--) 25km";
    String units "µmole/kg";
    String variable_info "The values in this variable array and in the valid_range attribute are in the units of x10umol/kg . The data values should be multiplied by the value (=0.1) contained in thescale_factor attribute to obtain the actual values in the units of .umol/kg .  The values are modeled according to Gledhill et al., 2008.  Fields of TA & fCO2sw were  were coupled to solve for the carbonic acid system using the CO2SYS program (Lewis & Wallace, 1998).  Constants: K1,K2 from Mehrbach et al, 1973 refit by Dickson & Millero, 1987;  fCO2 (versus pCO2); KSO4 from Dickson; pH = total scale";
  }
  surface_flag {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 1.0;
    Float64 colorBarMaximum 1.5;
    Float64 colorBarMinimum 0.0;
    String description "An array in the same dimension as the data array(s) classifies valid, non-valid (includes land and areas of no model outpt) and missing pixels that are all flaged by the same missing_value in the da array(s).";
    String flag_meanings "valid, non-valid (includes land and areas of no model output)";
    Byte flag_values 0, 1;
    String ioos_category "Quality";
    String long_name "Pixel characteristics flag array";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String comment "This is the Coral Reef Watch Ocean Acidification Product Suite  produced monthly in conjunction with NOAA CoastWatch. CoastWatch Utilities, including CoastWatch Data Analysis  Tool (CDAT), v3.2.1 or higher (https://coastwatch.noaa.gov/cw_software.html) can be used for viewing, analyzing, and plotting the data.";
    String composite "false";
    String contact "NOAA Coral Reef Watch at coralreefwatch@noaa.gov";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "coralreefwatch@noaa.gov";
    String creator_name "CORALREEFWATCH";
    String creator_type "institution";
    String creator_url "https://www.noaa.gov/";
    String data_source "NOAA OI AVHRR-AMSRE SST, NCEP Interp SLP, Forecast pCO2air Model, IASNFS SSS";
    Float64 Easternmost_Easting -59.875;
    Float64 geospatial_lat_max 30.125;
    Float64 geospatial_lat_min 14.875;
    Float64 geospatial_lat_resolution 0.25;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -59.875;
    Float64 geospatial_lon_min -90.125;
    Float64 geospatial_lon_resolution 0.25;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-05-07T08:30:46Z https://cwcgom.aoml.noaa.gov/thredds/dodsC/OCEAN_ACIDIFICATION/ACIDIFICATION.nc
2024-05-07T08:30:46Z http://upwell.pfeg.noaa.gov/griddap/noaa_aoml_ced8_c051_08bd.das";
    String history_of_appended_files 
"Tue Sep 26 10:29:40 2023: Appended file NETCDFIASNFS/METADATA/landmask_25km.nc had following \"history\" attribute:
Mon Sep 29 08:40:42 2008: ncatted -a flag_values,surface_flag,c,b,0,1 landmask_25km.nc
Mon Sep 29 08:39:43 2008: ncrename -v z,surface_flag landmask_25km.nc
Mon Sep 29 08:39:40 2008: ncatted -a units,longitude,c,c,degrees-east landmask_25km.nc
Mon Sep 29 08:39:35 2008: ncatted -a units,latitude,c,c,degress-north landmask_25km.nc
Mon Sep 29 08:39:22 2008: ncatted -a long_name,latitude,m,c,latitude landmask_25km.nc
Mon Sep 29 08:39:17 2008: ncatted -a long_name,longitude,m,c,longitude landmask_25km.nc
Mon Sep 29 08:39:11 2008: ncatted -a flag_meanings,z,c,c,valid, non-valid (includes land and areas of no model output) landmask_25km.nc
Mon Sep 29 08:39:00 2008: ncatted -a flag_values,z,m,b,0,1 landmask_25km.nc
Mon Sep 29 08:38:56 2008: ncatted -a units,z,c,c,none landmask_25km.nc
Mon Sep 29 08:38:41 2008: ncatted -a description,z,c,c,An array in the same dimension as the data array(s) classifies valid, non-valid (includes land and areas of no model outpt) and missing pixels that are all flaged by the same missing_value in the da array(s). landmask_25km.nc
Mon Sep 29 08:38:08 2008: ncatted -a description,z,m,c,An array in the same dimension as the data array(s) classifies valid, non-valid (includes land and areas of no model outpt) and missing pixels that are all flaged by the same missing_value in the da array(s). landmask_25km.nc
Mon Sep 29 08:37:28 2008: ncatted -a long_name,z,m,c,Pixel characteristics flag array landmask_25km.nc
Mon Sep 29 08:35:17 2008: ncrename -v y,latitude landmask_25km.nc
Mon Sep 29 08:35:13 2008: ncrename -v x,longitude landmask_25km.nc
grdmath ../../landmask_25km.grd ISNAN -1 ADD 2 POW = kk.grd
Tue Sep 26 10:29:40 2023: Appended file co3.nc had following \"history\" attribute:
Tue Sep 26 10:29:40 2023: ncrename -v z,CO3 co3.nc
Tue Sep 26 10:29:40 2023: ncatted -a palette_info_variable,z,c,c,Uncertain co3.nc
Tue Sep 26 10:29:40 2023: ncatted -a variable_info,z,c,c,The values in this variable array and in the valid_range attribute are in the units of x10umol/kg . The data values should be multiplied by the value (=0.1) contained in thescale_factor attribute to obtain the actual values in the units of .umol/kg .  The values are modeled according to Gledhill et al., 2008.  Fields of TA & fCO2sw were  were coupled to solve for the carbonic acid system using the CO2SYS program (Lewis & Wallace, 1998).  Constants: K1,K2 from Mehrbach et al, 1973 refit by Dickson & Millero, 1987;  fCO2 (versus pCO2); KSO4 from Dickson; pH = total scale co3.nc
Tue Sep 26 10:29:40 2023: ncatted -a coordsys,z,c,c,geographic co3.nc
Tue Sep 26 10:29:40 2023: ncatted -a units,z,c,c,umol/kg co3.nc
Tue Sep 26 10:29:40 2023: ncatted -a long_name,z,m,c,NOAA Coral Reef Watch Experimental Ocean Acidification Product Suite - Carbonate Ion Concentration (CO3--) 25km co3.nc
Tue Sep 26 10:29:40 2023: ncatted -a units,y,c,c,degrees_north co3.nc
Tue Sep 26 10:29:40 2023: ncatted -a long_name,y,m,c,latitude co3.nc
Tue Sep 26 10:29:40 2023: ncatted -a units,x,c,c,degrees_east co3.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,x,m,c,longitude co3.nc
grdmath landmask_25km.grd kk.grd MUL = co3.nc
Tue Sep 26 10:29:40 2023: Appended file hco.nc had following \"history\" attribute:
Tue Sep 26 10:29:39 2023: ncrename -v z,HCO3 hco.nc
Tue Sep 26 10:29:39 2023: ncatted -a palette_info_variable,z,c,c,Uncertain hco.nc
Tue Sep 26 10:29:39 2023: ncatted -a variable_info,z,c,c,The values in this variable array and in the valid_range attribute are in the units of x10umol/kg . The data values should be multiplied by the value (=0.1) contained in thescale_factor attribute to obtain the actual values in the units of .umol/kg .  The values are modeled according to Gledhill et al., 2008.  Fields of TA & fCO2sw were  were coupled to solve for the carbonic acid system using the CO2SYS program (Lewis & Wallace, 1998).  Constants: K1,K2 from Mehrbach et al, 1973 refit by Dickson & Millero, 1987;  fCO2 (versus pCO2); KSO4 from Dickson; pH = total scale hco.nc
Tue Sep 26 10:29:39 2023: ncatted -a coordsys,z,c,c,geographic hco.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,z,c,c,umol/kg hco.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,z,m,c,NOAA Coral Reef Watch Experimental Ocean Acidification Product Suite - Bicarbonate Ion Concentration (HCO3-) 25km hco.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,y,c,c,degrees_north hco.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,y,m,c,latitude hco.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,x,c,c,degrees_east hco.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,x,m,c,longitude hco.nc
grdmath landmask_25km.grd kk.grd MUL = hco.nc
Tue Sep 26 10:29:40 2023: Appended file ara.nc had following \"history\" attribute:
Tue Sep 26 10:29:39 2023: ncrename -v z,SSA ara.nc
Tue Sep 26 10:29:39 2023: ncatted -a palette_info_variable,z,c,c,Uncertain ara.nc
Tue Sep 26 10:29:39 2023: ncatted -a variable_info,z,c,c,The values in this variable array and in the valid_range attribute are in the units of x100Omega . The data values should be multiplied by the value (=0.01) contained in thescale_factor attribute to obtain the actual values in the units of .Omega .  The values are modeled according to Gledhill et al., 2008.  Fields of TA & fCO2sw were  were coupled to solve for the carbonic acid system using the CO2SYS program (Lewis & Wallace, 1998).  Constants: K1,K2 from Mehrbach et al, 1973 refit by Dickson & Millero, 1987;  fCO2 (versus pCO2); KSO4 from Dickson; pH = total scale ara.nc
Tue Sep 26 10:29:39 2023: ncatted -a coordsys,z,c,c,geographic ara.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,z,c,c,Omega ara.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,z,m,c,NOAA Coral Reef Watch Experimental Ocean Acidification Product Suite - Saturation State (argonite) 25km ara.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,y,c,c,degrees_north ara.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,y,m,c,latitude ara.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,x,c,c,degrees_east ara.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,x,m,c,longitude ara.nc
grdmath landmask_25km.grd kk.grd MUL = ara.nc
Tue Sep 26 10:29:40 2023: Appended file ph.nc had following \"history\" attribute:
Tue Sep 26 10:29:39 2023: ncrename -v z,pH ph.nc
Tue Sep 26 10:29:39 2023: ncatted -a palette_info_variable,z,c,c,Uncertain ph.nc
Tue Sep 26 10:29:39 2023: ncatted -a variable_info,z,c,c,The values in this variable array and in the valid_range attribute are in the units of x100Total Scale. The data values should be multiplied by the value (=0.01) contained in thescale_factor attribute to obtain the actual values in the units of .Total Scale.  The values are modeled according to Gledhill et al., 2008.  Fields of TA & fCO2sw were  were coupled to solve for the carbonic acid system using the CO2SYS program (Lewis & Wallace, 1998).  Constants: K1,K2 from Mehrbach et al, 1973 refit by Dickson & Millero, 1987;  fCO2 (versus pCO2); KSO4 from Dickson; pH = total scale ph.nc
Tue Sep 26 10:29:39 2023: ncatted -a coordsys,z,c,c,geographic ph.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,z,c,c,Total Scale ph.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,z,m,c,NOAA Coral Reef Watch Experimental Ocean Acidification Product Suite - pH 25km  ph.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,y,c,c,degrees_north ph.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,y,m,c,latitude ph.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,x,c,c,degrees_east ph.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,x,m,c,longitude ph.nc
grdmath landmask_25km.grd kk.grd MUL = ph.nc
Tue Sep 26 10:29:40 2023: Appended file dic.nc had following \"history\" attribute:
Tue Sep 26 10:29:39 2023: ncrename -v z,TC dic.nc
Tue Sep 26 10:29:39 2023: ncatted -a palette_info_variable,z,c,c,Uncertain dic.nc
Tue Sep 26 10:29:39 2023: ncatted -a variable_info,z,c,c,The values in this variable array and in the valid_range attribute are in the units of x10umol/kg . The data values should be multiplied by the value (=0.1) contained in thescale_factor attribute to obtain the actual values in the units of .umol/kg .  The values are modeled according to Gledhill et al., 2008.  Fields of TA & fCO2sw were  were coupled to solve for the carbonic acid system using the CO2SYS program (Lewis & Wallace, 1998).  Constants: K1,K2 from Mehrbach et al, 1973 refit by Dickson & Millero, 1987;  fCO2 (versus pCO2); KSO4 from Dickson; pH = total scale dic.nc
Tue Sep 26 10:29:39 2023: ncatted -a coordsys,z,c,c,geographic dic.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,z,c,c,umol/kg dic.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,z,m,c,NOAA Coral Reef Watch Experimental Ocean Acidification Product Suite - Total Inorganic Carbon (TC) 25km dic.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,y,c,c,degrees_north dic.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,y,m,c,latitude dic.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,x,c,c,degrees_east dic.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,x,m,c,longitude dic.nc
grdmath landmask_25km.grd kk.grd MUL = dic.nc
Tue Sep 26 10:29:40 2023: Appended file alk.nc had following \"history\" attribute:
Tue Sep 26 10:29:39 2023: ncrename -v z,TA alk.nc
Tue Sep 26 10:29:39 2023: ncatted -a palette_info_variable,z,c,c,Uncertain alk.nc
Tue Sep 26 10:29:39 2023: ncatted -a variable_info,z,c,c,The values in this variable array and in the valid_range attribute are in the units of x10umol/kg . The data values should be multiplied by the value (=0.1) contained in thescale_factor attribute to obtain the actual values in the units of .umol/kg .  The values are modeled according to Gledhill et al., 2008 and depend on the tropical/subtropical algorthim offered by Lee et al. 2006 alk.nc
Tue Sep 26 10:29:39 2023: ncatted -a coordsys,z,c,c,geographic alk.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,z,c,c,umol/kg alk.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,z,m,c,NOAA Coral Reef Watch Experimental Ocean Acidification Product Suite - Total Alkalinity (TA) 25km alk.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,y,c,c,degrees_north alk.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,y,m,c,latitude alk.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,x,c,c,degrees_east alk.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,x,m,c,longitude alk.nc
grdmath landmask_25km.grd kk.grd MUL = alk.nc
Tue Sep 26 10:29:40 2023: Appended file pco2w.nc had following \"history\" attribute:
Tue Sep 26 10:29:39 2023: ncrename -v z,pCO2sw pco2w.nc
Tue Sep 26 10:29:39 2023: ncatted -a palette_info_variable,z,c,c,Uncertain pco2w.nc
Tue Sep 26 10:29:39 2023: ncatted -a variable_info,z,c,c,The values in this variable array and in the valid_range attribute are in the units of x10 uatm . The data values should be multiplied by the value (=0.1) contained in thescale_factor attribute to obtain the actual values in the units of uatm .  The values are modeled according to Gledhill et al., 2008 pco2w.nc
Tue Sep 26 10:29:39 2023: ncatted -a coordsys,z,c,c,geographic pco2w.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,z,c,c,uatm pco2w.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,z,m,c,NOAA Coral Reef Watch Experimental Ocean Acidification Product Suite - pCO2sw 25km pco2w.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,y,c,c,degrees_north pco2w.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,y,m,c,latitude pco2w.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,x,c,c,degrees_east pco2w.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,x,m,c,longitude pco2w.nc
grdmath landmask_25km.grd kk.grd MUL = pco2w.nc
Tue Sep 26 10:29:40 2023: Appended file sal.nc had following \"history\" attribute:
Tue Sep 26 10:29:39 2023: ncrename -v z,SSS sal.nc
Tue Sep 26 10:29:39 2023: ncatted -a palette_info_variable,z,c,c,Uncertain sal.nc
Tue Sep 26 10:29:39 2023: ncatted -a variable_info,z,c,c,The values in this variable array and in the valid_range attribute are in the units of x100 psu . The data values should be multiplied by the value (=0.01) contained in thescale_factor attribute to obtain the actual values in the units of .psu sal.nc
Tue Sep 26 10:29:39 2023: ncatted -a coordsys,z,c,c,geographic sal.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,z,c,c,psu sal.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,z,m,c,NOAA Coral Reef Watch Experimental Ocean Acidification Product Suite - IASNFS SSS interpolated to 25km sal.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,y,c,c,degrees_north sal.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,y,m,c,latitude sal.nc
Tue Sep 26 10:29:39 2023: ncatted -a units,x,c,c,degrees_east sal.nc
Tue Sep 26 10:29:39 2023: ncatted -a long_name,x,m,c,longitude sal.nc
grdmath landmask_25km.grd kk.grd MUL = sal.nc";
    String id "OCEAN_ACIDIFICATION";
    String infoUrl "https://cwcgom.aoml.noaa.gov/thredds/dodsC/OCEAN_ACIDIFICATION/ACIDIFICATION.nc.html";
    String institution "USDOC/NOAA Coral Reef Watch";
    String keywords "25km, acidification, advanced, alkalinity, americas, amsre, archived, argonite, array, avhrr, avhrr-amsre, bicarbonate, carbon, carbon dioxide, carbonate, caribbean, characteristics, chemistry, co2, co3, co3--, coastwatch, color, commerce, concentration, coral, crw, data, density, department, dioxide, earth, Earth Science > Oceans > Ocean Chemistry > pH, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, Earth Science > Oceans > Salinity/Density > Salinity, eos, experimental, flag, forecast, greater, hco3, hco3-, high, iasnfs, inorganic, interpolated, intra, intra-americas, ion, latitude, longitude, microwave, noaa, nowcast, nowcast/forecast, ocean, ocean color, oceans, pco2sw, pixel, practical, preliminary, product, quality, radiometer, reef, region, reported, resolution, salinity, saturation, scale, scanning, science, sea, sea_surface_temperature, sea_water_ph_reported_on_total_scale, sea_water_practical_salinity, seawater, SSA, sss, sst, state, states, suite, surface, surface_flag, system, temperature, time, total, united, usdoc, very, watch, water";
    String keywords_vocabulary "GCMD Science Keywords";
    String license 
"The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.";
    String NCO "netCDF Operators version 4.8.1 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco)";
    Float64 Northernmost_Northing 30.125;
    String origin "USDOC/NOAA Coral Reef Watch";
    String projection "geographic";
    String projection_type "mapped";
    String references "U.S. NOAA Coral Reef Watch satellite monitoring website at https://coralreefwatch.noaa.gov/satellite";
    String sourceUrl "https://cwcgom.aoml.noaa.gov/thredds/dodsC/OCEAN_ACIDIFICATION/ACIDIFICATION.nc";
    Float64 Southernmost_Northing 14.875;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "Archived NOAA Coral Reef Watch 25km Ocean Acidification Product Suite for the Greater Caribbean Region Quality Flag = Preliminary. This is the Coral Reef Watch Ocean Acidification Product Suite  produced monthly in conjunction with NOAA CoastWatch. CoastWatch Utilities, including CoastWatch Data Analysis  Tool (CDAT), v3.2.1 or higher (https://coastwatch.noaa.gov/cw_software.html) can be used for viewing, analyzing, and plotting the data.";
    Float64 temporal_extent 86400.0;
    String temporal_extent_unit "seconds";
    String testOutOfDate "now-4days";
    String time_coverage_end "2023-09-24T00:00:00Z";
    String time_coverage_start "2016-01-01T00:00:00Z";
    String title "NOAA Coral Reef Watch 25km Ocean Acidification, Caribbean, Preliminary, 0.25°, 2016-present";
    Float64 Westernmost_Easting -90.125;
  }
}

Using griddap to Request Data and Graphs from Gridded Datasets

griddap lets you request a data subset, graph, or map from a gridded dataset (for example, sea surface temperature data from a satellite), via a specially formed URL. griddap uses the OPeNDAP (external link)

Data Access Protocol (DAP) (external link)

and its projection constraints (external link)

The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.

(easy) You can get data by using the dataset's Data Access Form. It makes the URL for you.
(easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
(not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

griddap request URLs must be in the form
https://upwell.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
https://upwell.pfeg.noaa.gov/erddap/griddap/jplMURSST41.htmlTable?analysed_sst[(2002-06-01T09:00:00Z)][(-89.99):1000:(89.99)][(-179.99):1000:(180.0)]
Thus, the query is often a data variable name (e.g., analysed_sst), followed by [(start):stride:(stop)] (or a shorter variation of that) for each of the variable's dimensions (for example, [time][latitude][longitude]).

For details, see the griddap Documentation.