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ERDDAP > griddap > Make a Graph

Dataset Title:  Archived NOAA Coral Reef Watch 25km Ocean Acidification Product Suite for the Greater Caribbean Region Quality Flag = Preliminary   RSS
Institution:  CoastWatch Caribb-NOAA NESDIS Coral Reef Watch   (Dataset ID: miamiacidification)
Information:  Summary | License | Metadata | Background | Data Access Form
 
Graph Type: 
X Axis: 
Y Axis: 
Color: 
 
Dimension Ranges    Start    Stop
time (UTC)     specify just 1 value →
   
latitude (degrees_north)
   
   
longitude (degrees_east)
   
   
 
Graph Settings
Color Bar:    Continuity:    Scale:
      Min:    Max:    N Sections:
Draw the land mask:
 
(Please be patient. It may take a while to get the data.)
 
Optional:
Then set the File Type: and
or view the URL:
(Documentation / Bypass this form ) (File Type information)
    Click on the map to specify a new center point.
Zoom:
[The graph you specified. Please be patient.]

 

Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.4516064e+9, 1.5009408e+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 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 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 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 30.2997, 37.2344;
    Float64 colorBarMaximum 38.0;
    Float64 colorBarMinimum 25.0;
    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 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 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 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 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 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 1538.7002, 1766.9004;
    Float64 colorBarMaximum 1800.0;
    Float64 colorBarMinimum 1550.0;
    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 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";
    Float64 Easternmost_Easting -59.875;
    Float32 easternmost_longitude -60.0;
    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 
"2017-07-26 http://cwcgom.aoml.noaa.gov/thredds/dodsC/OCEAN_ACIDIFICATION/
ACIDIFICATION.nc
2017-07-26 http://cwcgom.aoml.noaa.gov/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.";
    String NCO "4.3.7";
    Int32 nco_openmp_thread_number 1;
    Int32 node_offset 0;
    Float32 northernmost_latitude 30.0;
    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 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;
    Float64 Southernmost_Northing 14.875;
    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 time_coverage_end "2017-07-25T00:00:00Z";
    String time_coverage_start "2016-01-01T00:00:00Z";
    String title 
"Archived NOAA Coral Reef Watch  25km Ocean Acidification Product Suite for 
the Greater Caribbean Region  Quality Flag = Preliminary";
    Float64 Westernmost_Easting -90.125;
    Float32 westernmost_longitude -90.0;
  }
}

 

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 is a superset of the
OPeNDAP DAP hyperslab protocol.

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.

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)]
Thus, the query is often a variable name (e.g., sst),
followed by a set of [] for each of the variable's dimensions
(for example, [time][altitude][latitude][longitude]),
with your desired (start):stride:(stop) values within each [].

For details, see the griddap Documentation.
 


ERDDAP, Version 1.30
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