数据访问表

数据集标题:	Topography, ETOPO1, 0.0166667 degrees, Global (longitude -180 to 180), (Ice Sheet Surface)
机构:	NOAA NGDC (数据集 ID: etopo180)
信息:	概括 \| 执照 \| FGDC \| ISO 19115 \| 元数据 \| 背景 \| 文件 \| 制作图表

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方面	尺寸	间距
latitude (degrees_north)	10801	0.01666667 (甚至)

longitude (degrees_east)	21601	0.01666667 (甚至)

网格变量（始终也会下载所有维度变量）

altitude (m)

文件类型： (更多信息)

(Documentation / Bypass this form)

（请耐心等待，获取数据可能需要一段时间。）

此数据集的数据集属性结构 (.das)

Attributes {
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range -90.0, 90.0;
    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 -180.0, 180.0;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  altitude {
    Int16 _FillValue 32767;
    Int16 actual_range -10898, 8271;
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "Topography";
    String coordsys "geographic";
    String ioos_category "Location";
    String long_name "Altitude";
    Int16 missing_value 32767;
    String positive "up";
    String standard_name "altitude";
    String units "m";
  }
  NC_GLOBAL {
    String acknowledgement "NOAA NGDC";
    String cdm_data_type "Grid";
    String contributor_name "GLOBE, SRTM30, Baltic Sea Bathymetry, Caspian Sea Bathymetry, Great Lakes Bathymetry, Gulf of California Bathymetry, IBCAO, JODC Bathymetry, Mediterranean Sea Bathymetry, U.S. Coastal Relief Model (CRM), Antarctica RAMP Topography, Antarctic Digital Database, GSHHS";
    String contributor_role "source data";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "Barry.Eakins@noaa.gov ";
    String creator_name "NOAA NGDC";
    String creator_url "https://www.ngdc.noaa.gov/mgg/global/global.html";
    String data_source "NOAA NGDC ETOPO1";
    String drawLandMask "under";
    Float64 Easternmost_Easting 180.0;
    Float64 geospatial_lat_max 90.0;
    Float64 geospatial_lat_min -90.0;
    Float64 geospatial_lat_resolution 0.016666666666666666;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 180.0;
    Float64 geospatial_lon_min -180.0;
    Float64 geospatial_lon_resolution 0.016666666666666666;
    String geospatial_lon_units "degrees_east";
    String history 
"2011-03-14 Downloaded https://www.ngdc.noaa.gov/mgg/global/relief/ETOPO1/data/ice_surface/grid_registered/binary/etopo1_ice_g_i2.zip
2025-06-30T08:50:41Z (local file)
2025-06-30T08:50:41Z https://coastwatch.pfeg.noaa.gov/erddap/zh-CN/griddap/etopo180.das";
    String id "etopo180";
    String infoUrl "https://www.ngdc.noaa.gov/mgg/global/global.html";
    String institution "NOAA NGDC";
    String keywords "Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry";
    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 naming_authority "gov.noaa.pfeg.coastwatch";
    Float64 Northernmost_Northing 90.0;
    String project "NOAA NGDC ETOPO";
    String projection "geographic";
    String projection_type "mapped";
    String references "Amante, C. and B. W. Eakins, ETOPO1 1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis. NOAA Technical Memorandum NESDIS NGDC-24, 19 pp, March 2009.";
    String sourceUrl "(local file)";
    Float64 Southernmost_Northing -90.0;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "ETOPO1 is a 1 arc-minute global relief model of Earth's surface that integrates land topography and ocean bathymetry. It was built from numerous global and regional data sets. This is the 'Ice Surface' version, with the top of the Antarctic and Greenland ice sheets. The horizontal datum is WGS-84, the vertical datum is Mean Sea Level. Keywords: Bathymetry, Digital Elevation. This is the grid/node-registered version: the dataset's latitude and longitude values mark the centers of the cells.";
    String title "Topography, ETOPO1, 0.0166667 degrees, Global (longitude -180 to 180), (Ice Sheet Surface)";
    Float64 Westernmost_Easting -180.0;
  }
}

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

。

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.