{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-08-31 16:20:39.906699", "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-21_to_2026-Aug-23_345.5_-44.0"}, "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": 2026080001819}, "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 21 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": 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": 120415.38108304048}, "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", "Southern-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": -44.0}, "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": 345.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "345.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 337.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 346.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -44.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -40.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-22.53, -39.97], [-22.0, -39.75], [-21.75, -39.85], [-21.5, 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"MultiPolygon", "coordinates": [[[[-22.53, -39.97], [-22.0, -39.75], [-21.75, -39.85], [-21.5, -39.75], [-21.25, -39.85], [-21.0, -39.75], [-20.75, -39.85], [-20.5, -39.75], [-20.25, -39.85], [-20.0, -39.75], [-19.47, -39.97], [-19.25, -40.5], [-19.46, -41.0], [-19.32, -41.32], [-19.25, -41.35], [-19.0, -41.25], [-18.47, -41.47], [-18.32, -41.82], [-18.25, -41.85], [-18.0, -41.75], [-17.47, -41.97], [-17.32, -42.32], [-17.25, -42.35], [-17.0, -42.25], [-16.75, -42.35], [-16.68, -42.32], [-16.53, -41.97], [-16.0, -41.75], [-15.75, -41.85], [-15.5, -41.75], [-15.25, -41.85], [-15.0, -41.75], [-14.47, -41.97], [-14.32, -42.32], [-13.97, -42.47], [-13.75, -43.0], [-13.85, -43.25], [-13.82, -43.32], [-13.47, -43.47], [-13.25, -44.0], [-13.35, -44.25], [-13.25, -44.5], [-13.47, -45.03], [-14.0, -45.25], [-14.25, -45.15], [-14.5, -45.25], [-15.03, -45.03], [-15.18, -44.68], [-15.25, -44.65], [-15.5, -44.75], [-15.75, -44.65], [-16.0, -44.75], [-16.53, -44.53], [-16.68, -44.18], [-16.75, 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maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.117270406087243, 13.349116261800134, 12.797879791259788]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.6479709412085897, 3.0943574800143376, 2.6178835089046295]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.8695934801849603, 4.065729770431517, 3.192339426177284]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4528846551674586, 1.7449280501730295, 1.4904744085421657]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.616254994586966, 2.401225175442489, 1.9247722189219907]}}