{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-08-31 16:20:39.897486", "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": "2026-Aug-19_to_2026-Aug-23_338.0_-19.5"}, "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": 2026080001705}, "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": true}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "August 19 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 23 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 52499.813067633615}, "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": []}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Atlantic-Ocean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": []}, "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": ["South Atlantic Ocean"]}, "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": -19.5}, "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": 338.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "338.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 334.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 340.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -20.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -18.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-23.03, -20.03], [-23.25, -19.5], [-23.03, -18.97], [-22.5, -18.75], [-22.25, -18.85], [-22.0, -18.75], [-21.47, -18.97], [-21.25, -19.5], [-21.47, -20.03], [-22.0, -20.25], [-22.25, -20.15], [-22.5, -20.25], [-23.03, -20.03]]]]}, "2026-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-23.25, -19.5], [-23.03, -18.97], [-22.5, -18.75], [-22.25, -18.85], [-22.0, -18.75], [-21.75, -18.85], [-21.5, -18.75], [-21.25, -18.85], [-21.0, -18.75], [-20.47, -18.97], [-20.32, -19.32], [-20.25, -19.35], [-20.0, -19.25], [-19.47, -19.47], [-19.25, -20.0], [-19.47, -20.53], [-20.0, -20.75], [-20.25, -20.65], [-20.5, -20.75], [-20.75, -20.65], [-21.0, -20.75], [-21.25, -20.65], [-21.5, -20.75], [-22.03, -20.53], [-22.18, -20.18], [-22.25, -20.15], [-22.5, -20.25], [-23.03, -20.03], [-23.25, -19.5]]], [[[-26.03, -17.97], [-25.5, -17.75], [-25.25, -17.85], [-25.0, -17.75], [-24.75, -17.85], [-24.5, -17.75], [-23.97, -17.97], [-23.75, -18.5], [-23.85, -18.75], [-23.75, -19.0], [-23.97, -19.53], [-24.5, -19.75], [-24.75, -19.65], [-25.0, -19.75], [-25.53, -19.53], [-25.68, -19.18], [-26.03, -19.03], [-26.25, -18.5], [-26.03, -17.97]]]]}, "2026-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-26.25, -18.5], [-26.03, -17.97], [-25.5, -17.75], [-25.25, -17.85], [-25.0, -17.75], [-24.75, -17.85], [-24.5, -17.75], [-23.97, -17.97], [-23.82, -18.32], [-23.75, -18.35], [-23.5, -18.25], [-22.97, -18.47], [-22.82, -18.82], [-22.75, -18.85], [-22.5, -18.75], [-22.25, -18.85], [-22.0, -18.75], [-21.75, -18.85], [-21.5, -18.75], [-21.25, -18.85], [-21.0, -18.75], [-20.47, -18.97], [-20.32, -19.32], [-20.25, -19.35], [-20.0, -19.25], [-19.47, -19.47], [-19.25, -20.0], [-19.47, -20.53], [-20.0, -20.75], [-20.25, -20.65], [-20.5, -20.75], [-20.75, -20.65], [-21.0, -20.75], [-21.25, -20.65], [-21.5, -20.75], [-22.03, -20.53], [-22.18, -20.18], [-22.25, -20.15], [-22.5, -20.25], [-22.75, -20.15], [-23.0, -20.25], [-23.25, -20.15], [-23.5, -20.25], [-23.75, -20.15], [-24.0, -20.25], [-24.53, -20.03], [-24.68, -19.68], [-24.75, -19.65], [-25.0, -19.75], [-25.53, -19.53], [-25.68, -19.18], [-26.03, -19.03], [-26.25, -18.5]]]]}, "2026-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-26.25, -18.5], [-26.03, -17.97], [-25.5, -17.75], [-25.25, -17.85], [-25.0, -17.75], [-24.75, -17.85], [-24.5, -17.75], [-23.97, -17.97], [-23.82, -18.32], [-23.75, -18.35], [-23.5, -18.25], [-22.97, -18.47], [-22.82, -18.82], [-22.75, -18.85], [-22.5, -18.75], [-22.25, -18.85], [-22.0, -18.75], [-21.75, -18.85], [-21.5, -18.75], [-21.25, -18.85], [-21.0, -18.75], [-20.47, -18.97], [-20.32, -19.32], [-20.25, -19.35], [-20.0, -19.25], [-19.47, -19.47], [-19.25, -20.0], [-19.47, -20.53], [-20.0, -20.75], [-20.25, -20.65], [-20.5, -20.75], [-20.75, -20.65], [-21.0, -20.75], [-21.25, -20.65], [-21.5, -20.75], [-22.03, -20.53], [-22.18, -20.18], [-22.25, -20.15], [-22.5, -20.25], [-22.75, -20.15], [-23.0, -20.25], [-23.25, -20.15], [-23.5, -20.25], [-23.75, -20.15], [-24.0, -20.25], [-24.53, 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-20.25], [-24.53, -20.03], [-24.68, -19.68], [-24.75, -19.65], [-25.0, -19.75], [-25.53, -19.53], [-25.68, -19.18], [-26.03, -19.03], [-26.25, -18.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.1757768432374291}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.8502759196496894}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.05984522501626, 22.16152470906576, 22.161468901457624, 22.36716458355943, 22.28183884797278]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.091746266682946, 22.561101531982445, 22.54248199462893, 22.722000376383505, 22.666206614176474]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.775436008151047, 0.7951376837388099, 0.7535356873261428, 0.9653726710553454, 0.88005700555862]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.7844886480453965, 0.8669931875632528, 0.8406287268334154, 1.1757768432374291, 1.0317924570878745]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3421093425518884, 1.433540800473368, 1.3933537554494984, 1.7799268298872017, 1.6486279011050742]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3529618561357677, 1.5776745800316285, 1.5674911514390824, 2.0902059924224217, 1.8775522253598451]}}