{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:21:22.972151", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2022-Jun-21_to_2022-Jun-29_240.0_36.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2022060002575}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "June 21 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 29 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 9}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 71928.98461271703}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["United States"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 36.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 240.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "240.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 238.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 243.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 35.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 39.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-119.75, 38.15], [-119.5, 38.25], [-118.97, 38.03], [-118.75, 37.5], [-118.85, 37.25], [-118.82, 37.18], [-118.47, 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"IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-122.15, 38.25], [-122.25, 38.5], [-122.15, 38.75], [-122.25, 39.0], [-122.03, 39.53], [-121.5, 39.75], [-120.97, 39.53], [-120.82, 39.18], [-120.47, 39.03], [-120.25, 38.5], [-120.47, 37.97], [-120.82, 37.82], [-120.97, 37.47], [-121.32, 37.32], [-121.47, 36.97], [-122.0, 36.75], [-122.53, 36.97], [-122.75, 37.5], [-122.53, 38.03], [-122.18, 38.18], [-122.15, 38.25]]]]}, "2022-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-122.15, 38.25], [-122.25, 38.5], [-122.15, 38.75], [-122.25, 39.0], [-122.03, 39.53], [-121.5, 39.75], [-121.25, 39.65], [-121.0, 39.75], [-120.47, 39.53], [-120.25, 39.0], [-120.35, 38.75], [-120.25, 38.5], 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