{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:47.421890", "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-Oct-02_to_2022-Oct-09_352.5_39.5"}, "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": 2022100001477}, "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": "October 02 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 09 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 72074.28919660923}, "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": ["Portugal", "Spain"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe", "Europe"]}, "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": 39.5}, "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": 352.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "352.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 352.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 356.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-3.47, 36.47], [-4.0, 36.25], [-4.53, 36.47], [-4.68, 36.82], [-5.03, 36.97], [-5.18, 37.32], [-5.25, 37.35], [-5.5, 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"Polygon vertices describing the boundary of the event at each time step", "value": {"2022-10-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.529999999999973, 37.53], [-4.0, 37.75], [-3.4700000000000273, 37.53], [-3.25, 37.0], [-3.4700000000000273, 36.47], [-4.0, 36.25], [-4.529999999999973, 36.47], [-4.75, 37.0], [-4.529999999999973, 37.53]]]]}, "2022-10-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.75, 40.5], [-6.529999999999973, 41.03], [-6.0, 41.25], [-5.75, 41.15], [-5.5, 41.25], [-4.970000000000027, 41.03], [-4.819999999999993, 40.68], [-4.470000000000027, 40.53], [-4.319999999999993, 40.18], [-3.9700000000000273, 40.03], [-3.75, 39.5], [-3.8500000000000227, 39.25], [-3.75, 39.0], [-3.8500000000000227, 38.75], [-3.75, 38.5], [-3.930000000000007, 38.07], [-3.5, 38.25], [-2.9700000000000273, 38.03], [-2.75, 37.5], [-2.9700000000000273, 36.97], [-3.319999999999993, 36.82], [-3.4700000000000273, 36.47], [-4.0, 36.25], 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