{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:59:56.557678", "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": "2024-Jul-03_to_2024-Jul-05_32.0_-23.0"}, "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": 2024070001294}, "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": "July 03 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 05 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 54162.09806745782}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "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": []}, "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": -23.0}, "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": 32.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "32.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 30.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 35.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -24.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -21.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[29.25, -23.5], [29.47, -22.97], [30.0, -22.75], [30.25, -22.85], [30.5, -22.75], [30.8, -22.87], [30.97, -22.47], [31.32, -22.32], [31.47, -21.97], [31.82, -21.82], [31.97, -21.47], [32.5, -21.25], [33.03, -21.47], [33.2, -21.87], [33.32, -21.82], [33.47, -21.47], [33.82, -21.32], [33.97, -20.97], [34.5, -20.75], [34.75, -20.85], [35.0, -20.75], [35.53, -20.97], [35.75, -21.5], [35.65, -21.75], [35.75, -22.0], [35.53, -22.53], [35.18, -22.68], [35.03, -23.03], [34.5, -23.25], [34.25, -23.15], [34.0, -23.25], [33.75, -23.15], [33.68, -23.18], [33.53, -23.53], [33.0, -23.75], [32.75, -23.65], [32.68, -23.68], [32.53, -24.03], [32.18, -24.18], [32.03, -24.53], [31.5, -24.75], [31.25, -24.65], [31.0, -24.75], [30.47, -24.53], [30.32, -24.18], [30.25, -24.15], [30.0, -24.25], [29.47, -24.03], [29.25, -23.5]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.0, -24.25], [29.47, -24.03], [29.25, -23.5], [29.47, -22.97], [30.0, -22.75], [30.25, -22.85], [30.5, -22.75], [30.8, -22.87], [30.97, -22.47], [31.32, -22.32], [31.47, -21.97], [31.82, -21.82], [31.97, -21.47], [32.5, -21.25], [33.03, -21.47], [33.2, -21.87], [33.32, -21.82], [33.47, -21.47], [33.82, -21.32], [33.97, -20.97], [34.5, -20.75], [34.75, -20.85], [35.0, -20.75], [35.53, -20.97], [35.75, -21.5], [35.65, -21.75], [35.75, -22.0], [35.53, -22.53], [35.18, -22.68], [35.03, -23.03], [34.5, -23.25], [34.25, -23.15], [34.0, -23.25], [33.75, -23.15], [33.68, -23.18], [33.53, -23.53], [33.0, -23.75], [32.75, -23.65], [32.68, -23.68], [32.53, -24.03], [32.18, -24.18], [32.03, -24.53], [31.5, -24.75], [31.25, -24.65], [31.0, -24.75], [30.47, -24.53], [30.32, -24.18], [30.25, -24.15], [30.0, -24.25]]]]}, "2024-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.0, -24.25], [29.47, -24.03], [29.25, -23.5], [29.47, -22.97], [30.0, -22.75], [30.25, -22.85], [30.5, -22.75], [30.8, -22.87], [30.97, -22.47], [31.32, -22.32], [31.47, -21.97], [31.82, -21.82], [31.97, -21.47], [32.5, -21.25], [33.03, -21.47], [33.2, -21.87], [33.32, -21.82], [33.47, -21.47], [33.82, -21.32], [33.97, -20.97], [34.5, -20.75], [34.75, -20.85], [35.0, -20.75], [35.53, -20.97], [35.75, -21.5], [35.65, -21.75], [35.75, -22.0], [35.53, -22.53], [35.18, -22.68], [35.03, -23.03], [34.5, -23.25], [34.25, -23.15], [34.0, -23.25], [33.75, -23.15], [33.68, -23.18], [33.53, -23.53], [33.0, -23.75], [32.75, -23.65], [32.68, -23.68], [32.53, -24.03], [32.18, -24.18], [32.03, -24.53], [31.5, -24.75], [31.25, -24.65], [31.0, -24.75], [30.47, -24.53], [30.32, -24.18], [30.25, -24.15], [30.0, -24.25]]]]}, "2024-07-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.0, -24.25], [29.47, -24.03], [29.25, -23.5], [29.47, -22.97], [30.0, -22.75], [30.25, -22.85], [30.5, -22.75], [30.8, -22.87], [30.97, -22.47], [31.32, -22.32], [31.47, -21.97], [31.82, -21.82], [31.97, -21.47], [32.5, -21.25], [33.03, -21.47], [33.2, -21.87], [33.32, -21.82], [33.47, -21.47], [33.82, -21.32], [33.97, -20.97], [34.5, -20.75], [34.75, -20.85], [35.0, -20.75], [35.53, -20.97], [35.75, -21.5], [35.65, -21.75], [35.75, -22.0], [35.53, -22.53], [35.18, -22.68], [35.03, -23.03], [34.5, -23.25], [34.25, -23.15], [34.0, -23.25], [33.75, -23.15], [33.68, -23.18], [33.53, -23.53], [33.0, -23.75], [32.75, -23.65], [32.68, -23.68], [32.53, -24.03], [32.18, -24.18], [32.03, -24.53], [31.5, -24.75], [31.25, -24.65], [31.0, -24.75], [30.47, -24.53], [30.32, -24.18], [30.25, -24.15], [30.0, -24.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.030731202046525}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.99458297060244}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.669220289379552, 22.831176960717812, 20.792115056064404]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.93043308260104, 24.18116295245767, 22.95500834848849]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.166828675818863, 4.429793202084161, 2.387127033904296]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.957540992634449, 6.030731202046525, 3.0658717291500466]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4033134856441463, 2.892537527250817, 1.5576076807543668]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7611669983745362, 3.5279033880321142, 2.3235836689229603]}}