{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:22.019552", "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": "2012-Aug-29_to_2012-Sep-01_31.5_-26.0"}, "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": 2012080003001}, "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": "August 29 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 01 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 80198.83195300482}, "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", "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": []}, "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": -26.0}, "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": 31.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "31.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 28.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 32.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -29.25}, "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": {"2012-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[28.97, -29.03], [28.75, -28.5], [28.97, -27.97], [29.5, -27.75], [29.75, -27.85], [29.82, -27.82], [29.85, -27.75], [29.75, -27.5], [29.85, -27.25], [29.75, -27.0], [29.97, -26.47], [30.32, -26.32], [30.47, -25.97], [30.82, -25.82], [30.97, -25.47], [31.5, -25.25], [32.03, -25.47], [32.25, -26.0], [32.15, -26.25], [32.25, -26.5], [32.15, -26.75], [32.25, -27.0], [32.15, -27.25], [32.25, -27.5], [32.03, -28.03], [31.68, -28.18], [31.65, -28.25], [31.75, -28.5], [31.53, -29.03], [31.18, -29.18], [31.03, -29.53], [30.5, -29.75], [29.97, -29.53], [29.82, -29.18], [29.75, -29.15], [29.5, -29.25], [28.97, -29.03]]]]}, "2012-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[28.47, -26.03], [28.25, -25.5], [28.47, -24.97], [29.0, -24.75], [29.25, -24.85], [29.32, -24.82], [29.47, -24.47], [30.0, -24.25], [30.25, -24.35], [30.32, -24.32], [30.35, -24.25], [30.25, -24.0], [30.47, -23.47], [31.0, -23.25], [31.53, -23.47], [31.75, -24.0], [31.65, -24.25], [31.68, -24.32], [31.75, -24.35], [32.0, -24.25], [32.53, -24.47], [32.75, -25.0], [32.53, -25.53], [32.18, -25.68], [32.15, -25.75], [32.25, -26.0], [32.15, -26.25], [32.25, -26.5], [32.15, -26.75], [32.25, -27.0], [32.15, -27.25], [32.25, -27.5], [32.03, -28.03], [31.68, -28.18], [31.65, -28.25], [31.75, -28.5], [31.53, -29.03], [31.18, -29.18], [31.03, -29.53], [30.5, -29.75], [29.97, -29.53], [29.82, -29.18], [29.75, -29.15], [29.5, -29.25], [28.97, -29.03], [28.75, -28.5], [28.97, -27.97], [29.5, -27.75], [29.75, -27.85], [29.82, -27.82], [29.85, -27.75], [29.75, -27.5], [29.85, -27.25], [29.75, -27.0], [29.97, -26.47], [30.32, -26.32], [30.35, -26.25], [30.32, -26.18], [30.0, -26.04], [29.5, -26.25], [29.25, -26.15], [29.0, -26.25], [28.47, -26.03]]]]}, "2012-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[28.47, -26.03], [28.25, -25.5], [28.47, -24.97], [29.0, -24.75], [29.25, -24.85], [29.32, -24.82], [29.47, -24.47], [30.0, -24.25], [30.25, -24.35], [30.32, -24.32], [30.35, -24.25], [30.25, -24.0], [30.47, -23.47], [31.0, 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mean t2m.", "value": [21.04887448051278, 21.47372944582355, 22.47192241431054, 21.99470756716255]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.283162947459175, 26.00653404255172, 26.22492776767041, 26.502766922535272]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.73401700540461, 4.474976107457786, 5.242776184428641, 4.373382967032878]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.058208360827052, 5.340271724390959, 7.78521814862728, 5.305151689051229]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.592334850160291, 1.6068407662065984, 1.8434318247962869, 1.598045558932222]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8278787426354237, 1.9082451935599511, 2.35266389575147, 1.9164122583325713]}}