{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:30:41.205213", "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-Apr-01_to_2022-Apr-06_33.0_-25.5"}, "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": 2022040001079}, "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": "April 01 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 06 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": 52443.93007644286}, "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": ["Mozambique", "South Africa"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa"]}, "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", "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": -25.5}, "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": 33.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "33.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 31.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 34.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -28.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.0, -24.75], [33.53, -24.97], [33.75, -25.5], [33.53, -26.03], [33.0, -26.25], [32.47, -26.03], [32.25, -25.5], [32.47, -24.97], [33.0, -24.75]]]]}, "2022-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.47, -26.03], [31.25, -25.5], [31.47, -24.97], [32.0, -24.75], [32.25, -24.85], [32.5, -24.75], [32.75, -24.85], [33.0, -24.75], [33.53, -24.97], [33.75, -25.5], [33.53, -26.03], [33.0, -26.25], [32.75, -26.15], [32.5, -26.25], [32.25, -26.15], [32.0, -26.25], [31.47, -26.03]]]]}, "2022-04-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.25, -25.5], [31.47, -24.97], [32.0, -24.75], [32.25, -24.85], [32.5, -24.75], [32.75, -24.85], [33.0, -24.75], [33.25, -24.85], [33.5, -24.75], [34.03, -24.97], [34.25, -25.5], [34.15, -25.75], [34.25, -26.0], [34.15, -26.25], [34.25, -26.5], [34.15, -26.75], [34.25, -27.0], [34.03, -27.53], [33.68, -27.68], [33.53, -28.03], [33.0, -28.25], [32.47, -28.03], [32.25, -27.5], [32.35, -27.25], [32.32, -27.18], [31.97, -27.03], [31.75, -26.5], [31.85, -26.25], [31.82, -26.18], [31.47, -26.03], [31.25, -25.5]]]]}, "2022-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.25, -25.5], [31.47, -24.97], [32.0, -24.75], [32.25, -24.85], [32.5, -24.75], [32.75, -24.85], [33.0, -24.75], [33.25, -24.85], [33.5, -24.75], [34.03, -24.97], [34.25, -25.5], [34.15, -25.75], [34.25, -26.0], [34.15, -26.25], [34.25, -26.5], [34.15, -26.75], [34.25, -27.0], [34.15, -27.25], [34.18, -27.32], [34.53, -27.47], [34.75, -28.0], [34.53, -28.53], [34.18, -28.68], [34.03, -29.03], [33.5, -29.25], [32.97, -29.03], [32.82, -28.68], [32.47, -28.53], [32.25, -28.0], [32.35, -27.75], [32.32, -27.68], [31.97, -27.53], [31.75, -27.0], [31.85, -26.75], [31.75, -26.5], [31.85, -26.25], [31.82, -26.18], [31.47, -26.03], [31.25, -25.5]]]]}, "2022-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.25, -25.5], [31.47, -24.97], [32.0, -24.75], [32.25, -24.85], [32.5, -24.75], [32.75, -24.85], [33.0, -24.75], [33.25, -24.85], [33.5, 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"anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.93579532373019, 2.6145773950728994, 2.0536673350710806, 1.9877754884738519, 2.413587304965251, 2.363228983617181]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.93579532373019, 2.7578963304325725, 3.401712548134242, 3.2072269025466085, 4.544941562859719, 4.664359474421872]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.342739096683617, 1.5023924217405116, 1.6142024962104244, 1.5967974934345748, 1.8362068655317305, 1.7777243198745984]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.342739096683617, 1.629762655427016, 2.2462500344049725, 2.028322445079604, 2.791058133358738, 2.575837378507047]}}