{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:04:18.008638", "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-Mar-30_to_2025-Apr-08_47.5_4.5"}, "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": 2025030002696}, "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": "March 30 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 08 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 10}, "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": 67744.25832563489}, "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": ["Somalia"]}, "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": 4.5}, "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": 47.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "47.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 46.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 49.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 3.0}, "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": [[[[46.5, 2.25], [45.97, 2.47], [45.75, 3.0], [45.85, 3.25], [45.75, 3.5], [45.85, 3.75], [45.75, 4.0], [45.85, 4.25], [45.75, 4.5], [45.85, 4.75], [45.75, 5.0], [45.97, 5.53], [46.5, 5.75], [46.75, 5.65], [46.87, 5.7], [46.75, 6.0], [46.85, 6.25], [46.75, 6.5], [46.97, 7.03], [47.5, 7.25], [47.75, 7.15], [48.0, 7.25], [48.53, 7.03], [48.68, 6.68], [48.75, 6.65], [49.0, 6.75], [49.53, 6.53], [49.75, 6.0], [49.53, 5.47], [49.18, 5.32], [49.03, 4.97], [48.68, 4.82], [48.65, 4.75], [48.75, 4.5], [48.53, 3.97], [48.18, 3.82], [48.03, 3.47], [47.68, 3.32], [47.53, 2.97], [47.18, 2.82], [47.03, 2.47], [46.5, 2.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa", "S.Eastern-Africa", "Equatorial.Indian-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-03-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.97, 3.53], [46.5, 3.75], [47.03, 3.53], [47.25, 3.0], [47.03, 2.47], [46.5, 2.25], [45.97, 2.47], [45.75, 3.0], [45.97, 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anomalies.", "value": [1.272582980426066, 1.4153067954312712, 1.38671499843083, 1.697993437015008, 1.7104300916990691, 1.4807233349795703, 1.320113164851309, 1.4352371072221386, 1.558749447687576, 1.4903168323206293]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.272582980426066, 1.6623004725490267, 1.4857561727704205, 2.043524348884827, 2.147523773580473, 1.7555117645100657, 1.5028070520921368, 1.6617768919159552, 1.8113790818534805, 1.6757335919215535]}}