{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:25:39.614866", "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-Dec-21_to_2022-Dec-26_48.5_-8.0"}, "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": 2022120002510}, "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": "December 21 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 26 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 104096.33533903862}, "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": ["Seychelles"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": ["Indian Ocean"]}, "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": -8.0}, "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": 48.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "48.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 48.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 52.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -9.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -6.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[47.47, -8.53], [47.25, -8.0], [47.35, -7.75], [47.25, -7.5], [47.35, -7.25], [47.25, -7.0], [47.47, -6.47], [48.0, -6.25], [48.25, -6.35], [48.5, -6.25], [48.75, -6.35], [48.82, -6.32], [48.97, -5.97], [49.5, -5.75], [49.75, -5.85], [50.0, -5.75], [50.25, -5.85], [50.5, -5.75], [51.03, -5.97], [51.25, -6.5], [51.13, -6.8], [51.25, -6.85], [51.32, -6.82], [51.47, -6.47], [52.0, -6.25], [52.53, -6.47], [52.75, -7.0], [52.65, -7.25], [52.75, -7.5], [52.53, -8.03], [52.0, -8.25], [51.75, -8.15], [51.68, -8.18], [51.53, -8.53], [51.18, -8.68], [51.03, -9.03], [50.68, -9.18], [50.53, -9.53], [50.0, -9.75], [49.75, -9.65], [49.68, -9.68], [49.53, -10.03], [49.0, -10.25], [48.75, -10.15], [48.5, -10.25], [47.97, -10.03], [47.75, -9.5], [47.85, -9.25], [47.75, -9.0], [47.85, -8.75], [47.82, -8.68], [47.47, -8.53]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Madagascar", "Equatorial.Indian-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": 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