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ERDDAP > griddap > 制作图表 ?

数据集标题:  nLw638ag, NOAA S-NPP, VIIRS, Near Real-Time, Global 4km, 2017-present, Daily,
Lon0360 Subscribe RSS
机构:  NOAA NESDIS CoastWatch   (数据集 ID: nesdisVHNnLw638Daily_Lon0360)
信息:  概括 ? | 执照 ? | FGDC | ISO 19115 | 元数据 | 背景 （外部链接） | 数据访问表 | 文件
 
图表类型:  ?
X 轴:  ?
Y 轴:  ?
颜色:  ?
 
方面 ?    开始 ?    Stop ?
time (UTC) ?     仅指定 1 个值 →
    |< -
< <
altitude (m) ?     仅指定 1 个值 →
   
< <
latitude (degrees_north) ?
    +
    -
< slider >
longitude (degrees_east) ?
    +
    -
< slider >
 
图表设置
彩条:   连续性:   规模: 
   最低限度:   最大限度:   N 节: 
绘制陆地遮罩: 
Y 轴最小值:   最大限度:   
 
（请耐心等待，获取数据可能需要一段时间。）
 
选修的:
然后设置文件类型: (文件类型信息)
and
或查看 URL:
(文档 / 旁路 这 形式 ? )
    单击地图以指定新的中心点。 ?
飞涨:
[您指定的图表。请耐心等待。]

 

您可以使用图表来做的事情

当然，你可以对图表做任何你想做的事情。但你可能没有考虑到以下几点：

此数据集的数据集属性结构 (.das)

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.7141328e+9, 1.7461008e+9;
    String axis "T";
    String calendar "gregorian";
    String ioos_category "Time";
    String long_name "Time Baseline";
    String source_name "time_baseline";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  altitude {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "up";
    Float64 actual_range 0.0, 0.0;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Altitude";
    String positive "up";
    String standard_name "altitude";
    String units "m";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range -89.75625000000002, 89.75625000000001;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String source_name "rows";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range 0.018749999999981976, 359.98125;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String source_name "cols";
    String standard_name "longitude";
    String units "degrees_east";
  }
  nLw_638_ag {
    UInt32 _ChunkSizes 1, 1, 902, 1808;
    Float32 _FillValue NaN;
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum 0.0;
    String colorBarPalette "WhiteRedBlack";
    String cw_atmospheric_correction "NOAA MECB BMW Atmospheric Correction";
    Int32 cw_fraction_digits 14;
    String cw_product_status "Experimental";
    Float64 cw_solar_irradiance 170.281804;
    String cw_solar_irradiance_units "uW/cm^2/nm";
    String grid_mapping "coord_ref";
    String ioos_category "Unknown";
    String long_name "Normalized Water-leaving Radiance at 638.0 nm (aggregated from high resolution)";
    Float32 missing_value NaN;
    String units "mW cm^-2 um^-1 sr^-1";
  }
  graphics {
    UInt32 _ChunkSizes 1, 1, 1193, 2393;
    Byte _FillValue 0;
    String _Unsigned "false";
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum 0.0;
    Int32 cw_fraction_digits 0;
    String grid_mapping "coord_ref";
    String ioos_category "Optical Properties";
    String long_name "graphics overlay planes";
    Byte missing_value 0;
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String creator_email "coastwatch.info@noaa.gov";
    String creator_name "NOAA CoastWatch";
    String creator_type "group";
    String creator_url "https://coastwatch.noaa.gov/";
    String date_created "2025-05-04T18:57:13Z";
    Float64 Easternmost_Easting 359.98125;
    Float64 geospatial_lat_max 89.75625000000001;
    Float64 geospatial_lat_min -89.75625000000002;
    Float64 geospatial_lat_resolution 0.03750000000000001;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 359.98125;
    Float64 geospatial_lon_min 0.018749999999981976;
    Float64 geospatial_lon_resolution 0.037500000000000006;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 0.0;
    Float64 geospatial_vertical_min 0.0;
    String geospatial_vertical_positive "up";
    String geospatial_vertical_units "m";
    String history 
"Processed with NOAA MSL12
2025-05-05T22:09:01Z (local files)
2025-05-05T22:09:01Z https://coastwatch.pfeg.noaa.gov/griddap/nesdisVHNnLw638Daily_Lon0360.das";
    String infoUrl "https://coastwatch.noaa.gov/thredds/dodsC/CoastWatch/VIIRS/nLw638ag/Weekly/WW00.html";
    String institution "NOAA NESDIS CoastWatch";
    String instrument "VIIRS";
    String keywords "aggregated, altitude, applications, baseline, center, data, environmental, graphics, imager, imager/radiometer, imaging, information, infrared, latitude, leaving, longitude, mean, national, nesdis, nlw638, nLw_638, noaa, normalized, npp, optical, optical properties, orbiting, overlay, partnership, planes, polar, polar-orbiting, properties, radiance, radiometer, research, satellite, service, spatial aggregation, suite, time, viirs, visible, water, water-leaving, ww00";
    String keywords_vocabulary "NASA Global Change Master Directory (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 naming_authority "gov.noaa.nesdis.star/socd/mecb/color/";
    Float64 Northernmost_Northing 89.75625000000001;
    String OBSERVED_PROPERTY "nLw_638_ag";
    String platform "S-NPP";
    String processing_level "L2";
    String project "Ocean Color Science Team (NOAA/NESDIS/STAR/OCST)";
    String publisher_email "coastwatch.info@noaa.gov; ncei.info@noaa.gov";
    String publisher_name "NOAA CoastWatch; National Centers for Environmental Information (NCEI)";
    String publisher_url "https://coastwatch.noaa.gov; https://www.ncei.noaa.gov/";
    String source "S-NPP_VIIRS_nLw638ag";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing -89.75625000000002;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String summary "Visible and Infrared Imager/Radiometer Suite/Suomi-NPP (VIIRS) Level-3 (WW00), Normalized Water-Leaving radiance at 672nm (nLw672), Global, Weekly, processed by NOAA.  EXPERIMENTAL.";
    String testOutOfDate "now-2days";
    String time_coverage_end "2025-05-01T12:00:00Z";
    String time_coverage_start "2024-04-26T12:00:00Z";
    String title "nLw638ag, NOAA S-NPP, VIIRS, Near Real-Time, Global 4km, 2017-present,  Daily, Lon0360";
    Float64 Westernmost_Easting 0.018749999999981976;
  }
}

 

使用 griddap 从网格数据集请求数据和图表

griddap允许您通过特殊格式的 URL 从网格数据集中请求数据子集、图表或地图（例如，来自卫星的海面温度数据）。griddap 使用OPeNDAP (external link)数据访问协议 (DAP ) (external link)及其投影约束 (external link) 。

URL 指定您想要的内容：数据集、图表或数据子集的描述以及响应的文件类型。

griddap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
https://coastwatch.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.


 
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ERDDAP ，版本2.26
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