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10-area-agg-space.md

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Retrieve a time series for selected variables for each station in an area and apply functions on the values of each time step

This DAPA endpoint returns a time series for an area (parameter bbox, coord or coordRef) in the selected time interval or at the selected time instant (parameter datetime).

All values in the area for each requested variable (parameter variables) are aggregated for each time step and each of the requested statistical functions (parameter functions) is applied to the aggregated values.

Sample request

Percipitation and maximum/minimum temperatures on 5 days in August 2019 over Germany. The functions min(), max(), mean(), count() and std-dev() are applied to the values for each day.

http://t16.ldproxy.net/ghcnd/collections/observation/dapa/area:aggregate-space?
coord=POLYGON((5.8 47.2,15.1 47.2,15.1 55.1,5.8 55.1,5.8 47.2))&
datetime=2019-08-07/2019-08-11&
variables=TMAX,TMIN,PRCP&
functions=min,max,mean,count,std-dev

Request GeoJSON

Request CSV

Sample responses

CSV

phenomenonTime,PRCP_count,PRCP_max,PRCP_mean,PRCP_min,PRCP_std-dev,TMAX_count,TMAX_max,TMAX_mean,TMAX_min,TMAX_std-dev,TMIN_count,TMIN_max,TMIN_mean,TMIN_min,TMIN_std-dev
2019-08-11,709,281.0,26.931225,0.0,45.49806,485,306.0,258.65854,115.0,27.334553,486,187.0,137.17947,58.0,20.78836
2019-08-10,709,229.0,12.449949,0.0,26.586481,485,305.0,245.46971,99.0,24.421343,486,206.0,157.32607,61.0,20.63871
2019-08-09,709,431.0,55.968887,0.0,56.121117,485,351.0,277.59433,134.0,34.76338,486,188.0,128.55798,52.0,21.31758
2019-08-08,709,439.0,5.9656353,0.0,25.032032,485,294.5,248.36009,67.0,23.795979,486,178.0,131.79442,20.0,16.903353
2019-08-07,709,490.0,63.96998,0.0,84.83652,485,285.0,225.75258,73.0,26.090208,486,177.53384399414062,144.37961,27.0,16.778051

GeoJSON

{
  "type" : "FeatureCollection",
  "features" : [ {
    "type" : "Feature",
    "geometry" : {
      "type" : "Polygon",
      "coordinates" : [ [ [ 5.8, 47.2 ], [ 15.1, 47.2 ], [ 15.1, 55.1 ], [ 5.8, 55.1 ], [ 5.8, 47.2 ] ] ]
    },
    "properties" : {
      "phenomenonTime" : "2019-08-11",
      "TMAX_mean" : 258.65854,
      "TMIN_std-dev" : 20.78836,
      "TMIN_max" : 187.0,
      "TMAX_max" : 306.0,
      "PRCP_min" : 0.0,
      "TMIN_count" : 486,
      "TMAX_count" : 485,
      "PRCP_mean" : 26.931225,
      "TMAX_min" : 115.0,
      "PRCP_max" : 281.0,
      "PRCP_count" : 709,
      "TMIN_min" : 58.0,
      "PRCP_std-dev" : 45.49806,
      "TMAX_std-dev" : 27.334553,
      "TMIN_mean" : 137.17947
    }
  }, {
    "type" : "Feature",
    "geometry" : {
      "type" : "Polygon",
      "coordinates" : [ [ [ 5.8, 47.2 ], [ 15.1, 47.2 ], [ 15.1, 55.1 ], [ 5.8, 55.1 ], [ 5.8, 47.2 ] ] ]
    },
    "properties" : {
      "phenomenonTime" : "2019-08-10",
      "TMAX_mean" : 245.46971,
      "TMIN_std-dev" : 20.63871,
      "TMIN_max" : 206.0,
      "TMIN_count" : 486,
      "TMAX_count" : 485,
      "PRCP_mean" : 12.449949,
      "TMAX_max" : 305.0,
      "PRCP_min" : 0.0,
      "TMAX_min" : 99.0,
      "PRCP_max" : 229.0,
      "TMIN_min" : 61.0,
      "PRCP_std-dev" : 26.586481,
      "TMAX_std-dev" : 24.421343,
      "TMIN_mean" : 157.32607
    }
  }, {
    "type" : "Feature",
    "geometry" : {
      "type" : "Polygon",
      "coordinates" : [ [ [ 5.8, 47.2 ], [ 15.1, 47.2 ], [ 15.1, 55.1 ], [ 5.8, 55.1 ], [ 5.8, 47.2 ] ] ]
    },
    "properties" : {
      "phenomenonTime" : "2019-08-09",
      "TMAX_mean" : 277.59433,
      "TMIN_std-dev" : 21.31758,
      "TMIN_max" : 188.0,
      "TMIN_count" : 486,
      "TMAX_count" : 485,
      "PRCP_mean" : 55.968887,
      "TMAX_max" : 351.0,
      "PRCP_min" : 0.0,
      "PRCP_count" : 709,
      "TMIN_min" : 52.0,
      "PRCP_std-dev" : 56.121117,
      "TMAX_min" : 134.0,
      "PRCP_max" : 431.0,
      "TMAX_std-dev" : 34.76338,
      "TMIN_mean" : 128.55798
    }
  }, {
    "type" : "Feature",
    "geometry" : {
      "type" : "Polygon",
      "coordinates" : [ [ [ 5.8, 47.2 ], [ 15.1, 47.2 ], [ 15.1, 55.1 ], [ 5.8, 55.1 ], [ 5.8, 47.2 ] ] ]
    },
    "properties" : {
      "phenomenonTime" : "2019-08-08",
      "TMAX_mean" : 248.36009,
      "TMIN_std-dev" : 16.903353,
      "TMIN_max" : 178.0,
      "TMIN_count" : 486,
      "TMAX_count" : 485,
      "PRCP_mean" : 5.9656353,
      "TMAX_max" : 294.5,
      "PRCP_min" : 0.0,
      "TMAX_std-dev" : 23.795979,
      "TMIN_mean" : 131.79442,
      "TMAX_min" : 67.0,
      "PRCP_max" : 439.0,
      "PRCP_count" : 709,
      "TMIN_min" : 20.0,
      "PRCP_std-dev" : 25.032032
    }
  }, {
    "type" : "Feature",
    "geometry" : {
      "type" : "Polygon",
      "coordinates" : [ [ [ 5.8, 47.2 ], [ 15.1, 47.2 ], [ 15.1, 55.1 ], [ 5.8, 55.1 ], [ 5.8, 47.2 ] ] ]
    },
    "properties" : {
      "phenomenonTime" : "2019-08-07",
      "TMAX_mean" : 225.75258,
      "TMIN_std-dev" : 16.778051,
      "TMIN_max" : 177.53384,
      "TMIN_count" : 486,
      "TMAX_count" : 485,
      "PRCP_mean" : 63.96998,
      "TMAX_max" : 285.0,
      "PRCP_min" : 0.0,
      "PRCP_count" : 709,
      "TMIN_min" : 27.0,
      "PRCP_std-dev" : 84.83652,
      "TMAX_min" : 73.0,
      "PRCP_max" : 490.0,
      "TMAX_std-dev" : 26.090208,
      "TMIN_mean" : 144.37961
    }
  } ]
}

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