University of Alaska Fairbanks • Scenarios Network for Alaska + Arctic Planning

Alaska + Arctic Geospatial Data API

Built by the Scenarios Network for Alaska + Arctic Planning

Design Index Point Query

The endpoints here provide access to the design thawing index and design freezing index.

Endpoints

Endpoint Description
thawing The mean of the three highest cumulative annual degree days from the thawing index for each era.
freezing The mean of the three highest cumulative annual degree days from the freezing index for each era.

Examples

Design Thawing Index

Query for the historical design thawing index at a provided point:

Example: /design_index/thawing/historical/point/65.0628/-146.1627

Query for the projected design thawing index at a provided point:

Example: /design_index/thawing/projected/point/65.0628/-146.1627

Query for the historical and projected design thawing index at a provided point:

Example: /design_index/thawing/hp/point/65.0628/-146.1627

Design Freezing Index

Query for the historical design freezing index at a provided point:

Example: /design_index/freezing/historical/point/65.0628/-146.1627

Query for the projected design freezing index at a provided point:

Example: /design_index/freezing/projected/point/65.0628/-146.1627

Query for the historical and projected design freezing index at a provided point:

Example: /design_index/freezing/hp/point/65.0628/-146.1627

Results from the queries above will look like this:
{
  "2040-2069": {
    "di": 3787
  },
  ...
}
The above output is structured as such:
{
  <era>: {
    "di": <mean of degree days across top three years across models and era>
  },
  ...
}

Comprehensive queries

The following queries will fetch design index values across all available models.

Example: /design_index/freezing/all/point/65.0628/-146.1627

Example: /design_index/thawing/all/point/65.0628/-146.1627

Results from the query above will look like this:
{
  ...
  "GFDL-CM3": {
    "2040-2069": {
      "di": 1548
    },
    "2070-2099": {
      "di": 775
    }
  },
  ...
}
The above output is structured as such:
{
  <model>: {
    <era>: {
      "dd": <mean of degree days across top three years across era>
    },
    ...
  }
  ...
}

CSV Export

To export the point data in a CSV file, append ?format=csv.

Example: /design_index/thawing/all/point/65.0628/-146.1627?format=csv

Example: /design_index/freezing/all/point/65.0628/-146.1627?format=csv