{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:37.364599", "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": "2011-May-23_to_2011-May-25_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": 2011050002474}, "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": "May 23 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 25 2011"}, "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": 81016.71506579401}, "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": ["Eswatini", "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": ["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": 30.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 33.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -27.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -23.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-05-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.38, -25.2], [29.97, -25.03], [29.75, -24.5], [29.97, -23.97], [30.5, -23.75], [30.75, -23.85], [31.0, -23.75], [31.25, -23.85], [31.5, -23.75], [31.75, -23.85], [31.82, -23.82], [31.97, -23.47], [32.5, -23.25], [32.75, -23.35], [33.0, -23.25], [33.53, -23.47], [33.68, -23.82], [34.03, -23.97], [34.25, -24.5], [34.15, -24.75], [34.25, -25.0], [34.04, -25.5], [34.25, -26.0], [34.15, -26.25], [34.25, -26.5], [34.03, -27.03], [33.5, -27.25], [33.0, -27.04], [32.68, -27.18], [32.53, -27.53], [32.0, -27.75], [31.47, -27.53], [31.25, -27.0], [31.35, -26.75], [31.32, -26.68], [31.25, -26.65], [31.0, -26.75], [30.47, -26.53], [30.25, -26.0], [30.35, -25.75], [30.25, -25.5], [30.38, -25.2]]]]}, "2011-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.38, -25.2], [29.97, -25.03], [29.75, -24.5], [29.97, -23.97], [30.5, -23.75], [30.75, -23.85], [31.0, -23.75], [31.25, -23.85], [31.5, -23.75], [31.75, -23.85], [31.82, -23.82], [31.97, -23.47], [32.5, -23.25], [32.75, -23.35], [33.0, -23.25], [33.53, -23.47], [33.68, -23.82], [34.03, -23.97], [34.25, -24.5], [34.15, -24.75], [34.25, -25.0], [34.04, -25.5], [34.25, -26.0], [34.15, -26.25], [34.25, -26.5], [34.03, -27.03], [33.5, -27.25], [33.0, -27.04], [32.68, -27.18], [32.53, -27.53], [32.0, -27.75], [31.47, -27.53], [31.25, -27.0], [31.35, -26.75], [31.32, -26.68], [31.25, -26.65], [31.0, -26.75], [30.47, -26.53], [30.25, -26.0], [30.35, -25.75], [30.25, -25.5], [30.38, -25.2]]]]}, "2011-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.38, -25.2], [29.97, -25.03], [29.75, -24.5], [29.97, -23.97], [30.5, -23.75], [30.75, -23.85], [31.0, -23.75], [31.25, -23.85], [31.5, -23.75], [31.75, -23.85], [31.82, -23.82], [31.97, -23.47], [32.5, -23.25], [32.75, -23.35], [33.0, -23.25], [33.53, -23.47], [33.68, -23.82], [34.03, -23.97], [34.25, -24.5], [34.15, -24.75], [34.25, -25.0], [34.04, -25.5], [34.25, -26.0], [34.15, -26.25], [34.25, -26.5], [34.03, -27.03], [33.5, -27.25], [33.0, -27.04], [32.68, -27.18], [32.53, -27.53], [32.0, -27.75], [31.47, -27.53], [31.25, -27.0], [31.35, -26.75], [31.32, -26.68], [31.25, -26.65], [31.0, -26.75], [30.47, -26.53], [30.25, -26.0], [30.35, -25.75], [30.25, -25.5], [30.38, -25.2]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.362868948453865}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.037722696561892}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.374862137518846, 24.456218545225113, 24.284080367745446]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.27321652860968, 26.704787002250725, 27.71383195873898]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.252242961880176, 4.440765662851748, 4.420159464953754]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.954078613445461, 5.8042614984698275, 6.362868948453865]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7593685382379425, 2.3386655428678296, 2.2537395927886115]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.5171624745181753, 3.0411950826041187, 3.1107097887061537]}}