{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:27:29.725206", "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": "2021-Sep-26_to_2021-Oct-01_44.5_-18.5"}, "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": 2021090002578}, "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": "September 26 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 01 2021"}, "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": 55537.63470315989}, "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": ["Madagascar"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Madagascar"]}, "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": ["Mozambique Channel"]}, "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": -18.5}, "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": 44.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "44.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 43.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 45.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -20.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.0, -16.75], [44.53, -16.97], [44.75, -17.5], [44.53, -18.03], [44.0, -18.25], [43.47, -18.03], [43.25, -17.5], [43.47, -16.97], [44.0, -16.75]]]]}, "2021-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.35, -17.75], [43.25, -17.5], [43.47, -16.97], [44.0, -16.75], [44.25, -16.85], [44.5, -16.75], [45.03, -16.97], [45.25, -17.5], [45.15, -17.75], [45.18, -17.82], [45.53, -17.97], [45.75, -18.5], [45.53, -19.03], [45.18, -19.18], [45.03, -19.53], [44.5, -19.75], [43.97, -19.53], [43.82, -19.18], [43.47, -19.03], [43.25, -18.5], [43.35, -18.25], [43.25, -18.0], [43.35, -17.75]]]]}, "2021-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.97, -16.47], [43.5, -16.25], [44.03, -16.47], [44.18, -16.82], [44.25, -16.85], [44.5, -16.75], [45.03, -16.97], [45.25, -17.5], [45.15, -17.75], [45.18, -17.82], [45.53, -17.97], [45.75, -18.5], [45.63, -18.8], [46.03, -18.97], [46.25, -19.5], [46.15, -19.75], [46.25, -20.0], [46.15, -20.25], [46.25, -20.5], [46.03, -21.03], [45.5, -21.25], [45.25, -21.15], [45.0, -21.25], [44.75, -21.15], [44.5, -21.25], [43.97, -21.03], [43.75, -20.5], [43.85, -20.25], [43.75, -20.0], [43.85, -19.75], [43.75, -19.5], [43.85, -19.25], [43.82, -19.18], [43.47, -19.03], [43.25, -18.5], [43.35, -18.25], [43.32, -18.18], [42.97, -18.03], [42.75, -17.5], [42.85, -17.25], [42.75, -17.0], [42.97, -16.47]]]]}, "2021-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.97, -16.47], [43.5, -16.25], [44.03, -16.47], [44.18, -16.82], [44.25, -16.85], [44.5, -16.75], [45.03, -16.97], [45.25, -17.5], [45.15, -17.75], [45.18, -17.82], [45.53, -17.97], [45.75, -18.5], [45.63, -18.8], [46.03, -18.97], [46.25, -19.5], [46.15, -19.75], [46.25, -20.0], [46.15, -20.25], [46.25, -20.5], [46.03, -21.03], [45.5, -21.25], [45.25, -21.15], [45.0, -21.25], [44.75, -21.15], [44.5, -21.25], [43.97, -21.03], [43.75, -20.5], [43.85, -20.25], [43.75, -20.0], [43.85, -19.75], [43.75, -19.5], [43.85, -19.25], [43.82, -19.18], [43.47, -19.03], [43.25, -18.5], [43.35, 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27.420169726758388]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.7381164447853621, 1.1824416253378942, 1.5237583077664687, 1.5072019197086057, 1.4331959142922448, 1.0953276209457954]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.7381164447853621, 1.5446033991361219, 2.2985075415192, 2.104449907719186, 2.7547054024980753, 1.3167520010875933]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2790115314616148, 1.5536594309131995, 1.7521338974312077, 1.7188016462095053, 1.5146774774145546, 1.3404939172057306]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2790115314616148, 1.8521072248481434, 2.349005641173104, 1.894512922800053, 2.338083327324152, 1.49402245699659]}}