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Dataset Title:  Archived NOAA Coral Reef Watch 25km Ocean Acidification Product Suite for the Greater Caribbean Region Quality Flag = Preliminary
Dataset ID:  miamiacidification RSS  
Institution:  CoastWatch Caribb-NOAA NESDIS Coral Reef Watch
Information:  Summary | Variables | Background | Make A Graph

Dimensions Start Stride Stop  Size    Spacing
time (UTC)      459    1 day 01:02:53 (uneven)
latitude (degrees_north)      62    0.25 (even)
longitude (degrees_east)      122    0.25 (even)
 
Grid Variables (which always also download all of the dimension variables)
SST (sea surface temperature, degree_C)
SSS (sea surface salinity, psu)
pCO2sw (Partial pressure CO2 Seawater, uatm)
TA (Total Alkalinity, umol/kg)
TC (Total Inorganic Carbon, umol/kg)
pH (Total Scale)
SSA (Saturation State (aragonite), Omega)
HCO3 (Bicarbonate Ion Concentration (HCO3-), umol/kg)
CO3 (Carbonate Ion Concentration (CO3--), umol/kg)

File type:

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.2175488e+9, 1.258848e+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";
    Float32 actual_range 14.875, 30.125;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -90.125, -59.875;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  SST {
    Float32 _FillValue NaN;
    Float32 actual_range 5.3, 31.94;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 15.0;
    String coordinates "x y";
    String coordsys "geographic";
    String ioos_category "Temperature";
    String long_name "sea surface temperature";
    String palette_info_variable "Uncertain";
    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 21.2851, 36.688;
    Float64 colorBarMaximum 38.0;
    Float64 colorBarMinimum 25.0;
    String coordinates "x y";
    String coordsys "geographic";
    String ioos_category "Salinity";
    String long_name "sea surface salinity";
    String palette_info_variable "Uncertain";
    String standard_name "sea surface 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 349.976, 427.554;
    Float64 colorBarMaximum 440.0;
    Float64 colorBarMinimum 300.0;
    String coordinates "x y";
    String coordsys "geographic";
    String ioos_category "Dissolved Nutrients";
    String long_name "Partial pressure CO2 Seawater";
    String palette_info_variable "Uncertain";
    String standard_name "Partial pressure CO2 Seawater";
    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 1944.91, 2397.07;
    Float64 colorBarMaximum 2500.0;
    Float64 colorBarMinimum 1900.0;
    String coordinates "x y";
    String coordsys "geographic";
    String ioos_category "Dissolved Nutrients";
    String long_name "Total Alkalinity";
    String palette_info_variable "Uncertain";
    String standard_name "Dissolved Nutrients";
    String units "umol/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 1715.8, 2033.31;
    Float64 colorBarMaximum 2100.0;
    Float64 colorBarMinimum 1700.0;
    String coordinates "x y";
    String coordsys "geographic";
    String ioos_category "Dissolved Nutrients";
    String long_name "Total Inorganic Carbon";
    String palette_info_variable "Uncertain";
    String standard_name "Total Inorganic Carbon";
    String units "umol/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 8.012766, 8.089341;
    Float64 colorBarMaximum 8.1;
    Float64 colorBarMinimum 7.95;
    String coordinates "x y";
    String coordsys "geographic";
    String ioos_category "Dissolved Nutrients";
    String long_name "pH";
    String palette_info_variable "Uncertain";
    String standard_name "pH";
    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 2.8316011, 4.154176;
    Float64 colorBarMaximum 4.5;
    Float64 colorBarMinimum 2.0;
    String coordinates "x y";
    String coordsys "geographic";
    String ioos_category "Dissolved Nutrients";
    String long_name "Saturation State (aragonite)";
    String palette_info_variable "Uncertain";
    String standard_name "Saturation State (aragonite)";
    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 15385.7, 17662.9;
    Float64 colorBarMaximum 18000.0;
    Float64 colorBarMinimum 15500.0;
    String coordinates "x y";
    String coordsys "geographic";
    String ioos_category "Dissolved Nutrients";
    String long_name "Bicarbonate Ion Concentration (HCO3-)";
    String palette_info_variable "Uncertain";
    String standard_name "Bicarbonate Ion Concentration";
    String units "umol/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 167.4, 258.191;
    Float64 colorBarMaximum 300.0;
    Float64 colorBarMinimum 100.0;
    String coordinates "x y";
    String coordsys "geographic";
    String ioos_category "Dissolved Nutrients";
    String long_name "Carbonate Ion Concentration (CO3--)";
    String palette_info_variable "Uncertain";
    String standard_name "Carbonate Ion Concentration";
    String units "umol/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";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    Int16 cols 122;
    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 (http://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-1.0, Unidata Dataset Discovery v1.0";
    String data_source "NOAA OI AVHRR-AMSRE SST, NCEP Interp SLP, Forecast pCO2air Model, IASNFS SSS";
    Float32 easternmost_longitude -60.0;
    String history 
"2009-11-24 http://cwcgom.aoml.noaa.gov/thredds/dodsC/OCEAN_ACIDIFICATION/
ACIDIFICATION.nc
2009-11-24 http://cwcgom.aoml.noaa.gov/erddap/griddap/miamiacidification.das";
    String infoUrl "http://coralreefwatch.noaa.gov/satellite/current/experimental_products.html";
    String institution "CoastWatch Caribb-NOAA NESDIS Coral Reef Watch";
    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.";
    Int32 nco_openmp_thread_number 1;
    Int32 node_offset 0;
    Float32 northernmost_latitude 30.0;
    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 http://
coralreefwatch.noaa.gov/satellite";
    Int16 rows 62;
    String sourceUrl 
"http://cwcgom.aoml.noaa.gov/thredds/dodsC/OCEAN_ACIDIFICATION/ACIDIFICATION.
nc";
    Float32 southernmost_latitude 15.0;
    String standard_name_vocabulary "CF-1.0";
    String summary 
"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 (http://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 title 
"Archived NOAA Coral Reef Watch  25km Ocean Acidification Product Suite for 
the Greater Caribbean Region  Quality Flag = Preliminary";
    Float32 westernmost_longitude -90.0;
  }
}

 

Using griddap to Request Data and Graphs from Gridded Datasets

griddap lets you request gridded data (for example, environmental data from satellites) and graphs of gridded data, via specially formed URLs.
The URLs specify everything: the dataset, the desired file type for the response, and the subset of data that you want to receive.
You can form these URLs by hand or with a computer program,
or (much easier) you can use the dataset's "Data Access Form" (oriented to requests for data)
or the dataset's "Make A Graph" form (oriented to requests for graphs and maps),
both of which generate the URL when the form is submitted.
griddap is a superset of the OPeNDAP DAP hyperslab protocol.

griddap request URLs must be in the form
   http://cwcgom.aoml.noaa.gov/erddap/griddap/ datasetID fileType {?query}
For example,
   http://cwcgom.aoml.noaa.gov/erddap/griddap/erdBAssta5day.htmlTable?sst[(2007-10-21T00:00:00)][0][(-75):100:(75)][(180):100:(360)]

For details, see the griddap Documentation.
 
ERDDAP Version 1.22

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