{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:09:08.035929", "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": "2025-Nov-30_to_2025-Dec-04_81.5_7.0"}, "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": 2025110002621}, "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": "November 30 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 04 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 94928.1295611403}, "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": ["Sri Lanka"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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", "Laccadive Sea"]}, "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": 7.0}, "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": 81.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "81.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 76.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 82.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 6.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 9.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[78.0, 6.25], [77.75, 6.35], [77.5, 6.25], [77.25, 6.35], [77.18, 6.32], [77.03, 5.97], [76.5, 5.75], [76.25, 5.85], [76.0, 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IPCC regions affected", "value": ["S.Asia", "Arabian-Sea", "Bay-of-Bengal", "Equatorial.Indian-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-11-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[80.97, 8.03], [81.5, 8.25], [82.03, 8.03], [82.18, 7.68], [82.53, 7.53], [82.75, 7.0], [82.53, 6.47], [82.0, 6.25], [81.75, 6.35], [81.5, 6.25], [80.97, 6.47], [80.75, 7.0], [80.85, 7.25], [80.75, 7.5], [80.97, 8.03]]], [[[75.47, 5.97], [75.25, 6.5], [75.47, 7.03], [76.0, 7.25], [76.25, 7.15], [76.32, 7.18], [76.47, 7.53], [76.82, 7.68], [76.97, 8.03], [77.32, 8.18], [77.47, 8.53], [77.82, 8.68], [77.97, 9.03], [78.5, 9.25], [78.8, 9.13], [78.97, 9.53], [79.5, 9.75], [80.03, 9.53], [80.25, 9.0], [80.03, 8.47], [79.5, 8.25], [79.2, 8.37], [79.15, 8.25], [79.18, 8.18], [79.53, 8.03], [79.75, 7.5], [79.53, 6.97], [79.0, 6.75], [78.75, 6.85], [78.68, 6.82], [78.53, 6.47], [78.0, 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