{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-08-31 16:20:39.828795", "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_347.0_-33.5"}, "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": 2026080001696}, "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": 122267.9089105961}, "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": -33.5}, "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": 347.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "347.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 344.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 349.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -34.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -30.75}, "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": [[[[-13.0, -32.75], [-12.47, -32.97], [-12.25, -33.5], [-12.47, -34.03], [-13.0, -34.25], [-13.53, -34.03], [-13.75, -33.5], [-13.53, -32.97], [-13.0, -32.75]]]]}, "2026-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.0, -31.75], [-12.47, -31.97], [-12.25, -32.5], [-12.46, -33.0], [-12.25, -33.5], [-12.47, -34.03], [-13.0, -34.25], [-13.53, -34.03], [-13.75, -33.5], [-13.54, -33.0], [-13.75, -32.5], [-13.53, -31.97], [-13.0, -31.75]]], [[[-11.53, -31.47], [-11.0, -31.25], [-10.47, -31.47], [-10.32, -31.82], [-9.97, -31.97], [-9.75, -32.5], [-9.97, -33.03], [-10.5, -33.25], [-11.03, -33.03], [-11.18, -32.68], [-11.53, -32.53], [-11.75, -32.0], [-11.53, -31.47]]]]}, "2026-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.53, -30.97], [-15.18, -30.82], [-15.03, -30.47], [-14.5, -30.25], [-14.25, -30.35], [-14.0, -30.25], [-13.47, -30.47], [-13.32, -30.82], [-13.25, -30.85], [-13.0, -30.75], [-12.47, -30.97], [-12.32, -31.32], [-12.25, -31.35], [-12.0, -31.25], [-11.75, -31.35], [-11.5, -31.25], [-11.25, -31.35], [-11.0, -31.25], [-10.47, -31.47], [-10.32, -31.82], [-9.97, -31.97], [-9.75, -32.5], [-9.96, -33.0], [-9.75, -33.5], [-9.97, -34.03], [-10.5, -34.25], [-10.75, -34.15], [-10.82, -34.18], [-10.97, -34.53], [-11.32, -34.68], [-11.47, -35.03], [-12.0, -35.25], [-12.53, -35.03], [-12.68, -34.68], [-12.75, -34.65], [-13.0, -34.75], [-13.53, -34.53], [-13.68, -34.18], [-13.75, -34.15], [-14.0, -34.25], [-14.25, -34.15], [-14.5, -34.25], [-15.03, -34.03], [-15.25, -33.5], [-15.15, -33.25], [-15.25, -33.0], [-15.15, -32.75], [-15.18, -32.68], [-15.53, -32.53], [-15.75, -32.0], [-15.65, -31.75], [-15.75, -31.5], [-15.53, -30.97]]]]}, "2026-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.53, -30.97], [-15.18, -30.82], [-15.03, -30.47], [-14.5, -30.25], [-14.25, -30.35], [-14.0, -30.25], [-13.47, -30.47], [-13.32, -30.82], [-13.25, -30.85], [-13.0, -30.75], [-12.47, -30.97], [-12.32, -31.32], [-12.25, -31.35], [-12.0, -31.25], [-11.75, -31.35], [-11.5, -31.25], [-11.25, -31.35], [-11.0, -31.25], [-10.47, -31.47], [-10.32, -31.82], [-9.97, -31.97], [-9.75, -32.5], [-9.96, -33.0], [-9.75, -33.5], [-9.97, -34.03], [-10.5, -34.25], [-10.75, -34.15], [-10.82, -34.18], [-10.97, -34.53], [-11.32, -34.68], [-11.47, -35.03], [-12.0, -35.25], [-12.53, -35.03], [-12.68, -34.68], [-12.75, -34.65], [-13.0, -34.75], [-13.53, -34.53], [-13.68, -34.18], [-13.75, -34.15], [-14.0, -34.25], [-14.25, -34.15], [-14.5, -34.25], [-15.03, -34.03], [-15.25, -33.5], [-15.15, -33.25], [-15.25, -33.0], [-15.15, -32.75], [-15.18, -32.68], [-15.53, -32.53], [-15.75, -32.0], [-15.65, -31.75], [-15.75, -31.5], [-15.53, -30.97]]]]}, "2026-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.53, -30.97], [-15.18, -30.82], [-15.03, -30.47], [-14.5, -30.25], [-14.25, -30.35], [-14.0, -30.25], [-13.47, -30.47], [-13.32, -30.82], [-13.25, -30.85], [-13.0, -30.75], [-12.47, -30.97], [-12.32, -31.32], [-12.25, -31.35], [-12.0, -31.25], [-11.75, -31.35], [-11.5, -31.25], [-11.25, -31.35], [-11.0, -31.25], [-10.47, -31.47], [-10.32, -31.82], [-9.97, -31.97], [-9.75, -32.5], [-9.96, -33.0], [-9.75, -33.5], [-9.97, -34.03], [-10.5, -34.25], [-10.75, -34.15], [-10.82, -34.18], [-10.97, -34.53], [-11.32, -34.68], [-11.47, -35.03], [-12.0, -35.25], [-12.53, -35.03], [-12.68, -34.68], [-12.75, -34.65], [-13.0, -34.75], [-13.53, -34.53], [-13.68, -34.18], [-13.75, -34.15], [-14.0, -34.25], [-14.25, -34.15], [-14.5, -34.25], [-15.03, -34.03], [-15.25, -33.5], [-15.15, -33.25], [-15.25, -33.0], [-15.15, -32.75], [-15.18, -32.68], [-15.53, -32.53], [-15.75, -32.0], [-15.65, -31.75], [-15.75, -31.5], [-15.53, -30.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.500511229276981}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.48370920805273}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.397328948974632, 16.81710332234701, 16.98002008749239, 17.57990360665832, 18.146910847332492]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.397328948974632, 17.19676233927413, 17.767661031087243, 18.62149581909182, 18.996284739176474]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6906927806855947, 1.698794786740919, 1.9154591932598761, 2.554952699847176, 3.0643896483408057]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6906927806855947, 1.7573378200410161, 2.1219186996242456, 2.945552876971931, 3.500511229276981]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1861733910979897, 1.2410670087550173, 1.3509832245571423, 1.7637683329192106, 2.142663931911644]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.1861733910979897, 1.3215901761263165, 1.450838604181287, 2.0416030543209467, 2.3338113906313334]}}