ERDDAP > griddap > 制作图表

数据集标题:	Daily estimated MUR SST v4.1 Frontal edges, x_gradient, y_gradient and gradient magnitude, US Atlantic Coast, 2003-present, Lon0360
机构:	NOAA ERD   (数据集 ID: erdMurFront41USAtlantic_Lon0360)
信息:	概括 | 执照 | FGDC | ISO 19115 | 元数据 | 背景 | 数据访问表 | 文件

 

图表类型:  lines linesAndMarkers markers sticks surface vectors X 轴:  time latitude longitude Y 轴:  time latitude longitude 颜色:  edges x_gradient y_gradient magnitude_gradient   方面    开始    Stop time (UTC)     仅指定 1 个值 → altitude (m)     仅指定 1 个值 → latitude (degrees_north) longitude (degrees_east)   图表设置 彩条:  BlackBlueWhite BlackGreenWhite BlackRedWhite BlackWhite BlueWhiteRed BlueWideWhiteRed LightRainbow Ocean OceanDepth Rainbow Rainbow2 Rainfall ReverseRainbow RedWhiteBlue RedWhiteBlue2 RedWideWhiteBlue Spectrum Topography TopographyDepth WhiteBlueBlack WhiteGreenBlack WhiteRedBlack WhiteBlack YellowRed KT_algae KT_amp KT_balance KT_curl KT_deep KT_delta KT_dense KT_gray KT_haline KT_ice KT_matter KT_oxy KT_phase KT_solar KT_speed KT_tempo KT_thermal KT_turbid EK80  连续性:  Continuous Discrete  规模:  Linear Log    最低限度:   最大限度:   N 节:  2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 绘制陆地遮罩:  under over outline off Y 轴最小值:   最大限度:    Ascending Descending Linear Log   重新绘制图表 （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: .asc .csv .csvp .csv0 .das .dds .dods .esriAscii .fgdc .graph .help .html .htmlTable .iso19115 .itx .json .jsonlCSV1 .jsonlCSV .jsonlKVP .mat .nc .ncHeader .ncml .nccsv .nccsvMetadata .ncoJson .odvTxt .parquet .parquetWMeta .timeGaps .tsv .tsvp .tsv0 .wav .xhtml .geotif .kml .smallPdf .pdf .largePdf .smallPng .png .largePng .transparentPng (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:

 

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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：

• 网页作者可以使用 HTML <img> 标签在网页中嵌入最新数据的图表。
• 任何人都可以使用ERDDAP的幻灯片分类器来构建个人网页，该网页以自己的可拖动幻灯片形式显示包含最新数据（或其他图像或 HTML 内容）的图表。
   

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此数据集的数据集属性结构 (.das)

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.0413792e+9, 1.746144e+9;
    String axis "T";
    String calendar "Gregorian";
    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";
  }
  altitude {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "up";
    Float32 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";
    Float32 actual_range 20.0, 50.0;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String reference_datum "geographical coordinates, WGS84 projection";
    String standard_name "latitude";
    String units "degrees_north";
    Float32 valid_max 50.0;
    Float32 valid_min 20.0;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range 270.0, 300.0;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String reference_datum "geographical coordinates, WGS84 projection";
    String standard_name "longitude";
    String units "degrees_east";
  }
  edges {
    Float32 _FillValue -9999.0;
    String ioos_category "Unknown";
    String long_name "Frontal Edge";
    Float32 missing_value -9999.0;
  }
  x_gradient {
    Float32 _FillValue -9999.0;
    String ioos_category "Temperature";
    String long_name "East-West Gradient of SST";
    Float32 missing_value -9999.0;
  }
  y_gradient {
    Float32 _FillValue -9999.0;
    String ioos_category "Temperature";
    String long_name "North-South Gradient of SST";
    Float32 missing_value -9999.0;
  }
  magnitude_gradient {
    Float32 _FillValue -9999.0;
    String ioos_category "Temperature";
    String long_name "Magnitude of SST Gradient";
    Float32 missing_value -9999.0;
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String Conventions "COARDS, CF-1.10, ACDD-1.3";
    String creator_email "erd.data@noaa.gov";
    String creator_name "NOAA NMFS SWFSC ERD";
    String creator_type "institution";
    String creator_url "https://www.pfeg.noaa.gov";
    String defaultGraphQuery "&.draw=surface&.vars=longitude|latitude|magnitude_gradient&.colorBar=KT_amp|||||&.bgColor=0xffccccff";
    Float64 Easternmost_Easting 300.0;
    Float64 geospatial_lat_max 50.0;
    Float64 geospatial_lat_min 20.0;
    Float64 geospatial_lat_resolution 0.01;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 300.0;
    Float64 geospatial_lon_min 270.0;
    Float64 geospatial_lon_resolution 0.01;
    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";
    Float64 grid_mapping_earth_radius 6367470.0;
    String grid_mapping_name "latitude_longitude";
    String history 
"created from MUR SST file 20250502090000-JPL-L4_GHRSST-SSTfnd-MUR-GLOB-v02.0-fv04.1.ncusing python scikit-image canny algorithm, sigma = 10, thresholds of 0.8, 0.9 and OpenCV findContours function with minimum length 20
2025-05-05T10:26:24Z (local files)
2025-05-05T10:26:24Z https://coastwatch.pfeg.noaa.gov/griddap/erdMurFront41USAtlantic_Lon0360.das";
    String infoUrl "https://www.pfeg.noaa.gov";
    String institution "NOAA ERD";
    String keywords "altitude, daily, data, day, east, east-west, edge, edges, erd, estimated, frontal, gradient, high, magnitude, magnitude_gradient, multi, multi-scale, mur, noaa, north, north-south, resolution, scale, sea, south, sst, surface, temperature, time, ultra, ultra-high, west, x_gradient, y_gradient";
    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.";
    Float64 Northernmost_Northing 50.0;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 20.0;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary 
"Front Edges estimated from daily Multi-scale Ultra-high Resolution (MUR) Sea Surface Temperature (SST) files
    using the Python scikit-image canny algorithm  with sigma = 10., and
    threshold values of .8 and .9,  as well as the OpenCV algorithm findContours with a minimum length of 20.
    The SST x-gradient, y-gradient and gradient magnitude are also included";
    String testOutOfDate "now-6days";
    String time_coverage_end "2025-05-02T00:00:00Z";
    String time_coverage_start "2003-01-01T00:00:00Z";
    String title "Daily estimated MUR SST v4.1 Frontal edges, x_gradient, y_gradient and gradient magnitude, US Atlantic Coast, 2003-present, Lon0360";
    Float64 Westernmost_Easting 270.0;
  }
}

 

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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 数据访问协议 (DAP ) 及其投影约束 。

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。

• （简单）您可以使用数据集的数据访问表单获取数据。它会为您生成 URL。
• （简单）您可以使用数据集的“制作图表”表单制作图表或地图。它会为您生成 URL。
• （不难）您可以绕过表格并获取数据，或者通过手动生成 URL 或使用计算机程序或脚本来制作图形或地图。

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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