{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:57:01.024906", "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": "2025-Sep-06_to_2025-Sep-08_346.0_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": 2025090001261}, "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": "September 06 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 08 2025"}, "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": 91229.56071945501}, "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": ["Morocco"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 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": 346.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "346.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 345.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 350.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 29.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-09-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.15, 25.25], [-15.25, 25.5], [-15.03, 26.03], [-14.68, 26.18], [-14.53, 26.53], [-14.18, 26.68], [-14.03, 27.03], [-13.68, 27.18], [-13.53, 27.53], [-13.18, 27.68], [-13.03, 28.03], [-12.5, 28.25], [-12.25, 28.15], [-12.18, 28.18], [-12.03, 28.53], [-11.68, 28.68], [-11.53, 29.03], [-11.18, 29.18], [-11.03, 29.53], [-10.5, 29.75], [-10.25, 29.65], [-10.0, 29.75], [-9.47, 29.53], [-9.25, 29.0], [-9.47, 28.47], [-9.82, 28.32], [-9.97, 27.97], [-10.32, 27.82], [-10.35, 27.75], [-10.25, 27.5], [-10.47, 26.97], [-10.82, 26.82], [-10.85, 26.75], [-10.75, 26.5], [-10.97, 25.97], [-11.5, 25.75], [-11.75, 25.85], [-11.82, 25.82], [-11.97, 25.47], [-12.32, 25.32], [-12.47, 24.97], [-12.82, 24.82], [-12.85, 24.75], [-12.75, 24.5], [-12.97, 23.97], [-13.5, 23.75], [-13.75, 23.85], [-14.0, 23.75], [-14.25, 23.85], [-14.5, 23.75], [-15.03, 23.97], [-15.25, 24.5], [-15.15, 24.75], [-15.25, 25.0], [-15.15, 25.25]]]]}, "2025-09-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.15, 25.25], [-15.25, 25.5], [-15.03, 26.03], [-14.68, 26.18], [-14.53, 26.53], [-14.18, 26.68], [-14.03, 27.03], [-13.68, 27.18], [-13.53, 27.53], [-13.18, 27.68], [-13.03, 28.03], [-12.5, 28.25], [-12.25, 28.15], [-12.18, 28.18], [-12.03, 28.53], [-11.68, 28.68], [-11.53, 29.03], [-11.18, 29.18], [-11.03, 29.53], [-10.5, 29.75], [-10.25, 29.65], [-10.0, 29.75], [-9.47, 29.53], [-9.25, 29.0], [-9.47, 28.47], [-9.82, 28.32], [-9.97, 27.97], [-10.32, 27.82], [-10.35, 27.75], [-10.25, 27.5], [-10.47, 26.97], [-10.82, 26.82], [-10.85, 26.75], [-10.75, 26.5], [-10.97, 25.97], [-11.5, 25.75], [-11.75, 25.85], [-11.82, 25.82], [-11.97, 25.47], [-12.32, 25.32], [-12.47, 24.97], [-12.82, 24.82], [-12.85, 24.75], [-12.75, 24.5], [-12.97, 23.97], [-13.5, 23.75], [-13.75, 23.85], [-14.0, 23.75], [-14.25, 23.85], [-14.5, 23.75], [-15.03, 23.97], [-15.25, 24.5], [-15.15, 24.75], [-15.25, 25.0], [-15.15, 25.25]]]]}, "2025-09-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.15, 25.25], [-15.25, 25.5], [-15.03, 26.03], [-14.68, 26.18], [-14.53, 26.53], [-14.18, 26.68], [-14.03, 27.03], [-13.68, 27.18], [-13.53, 27.53], [-13.18, 27.68], [-13.03, 28.03], [-12.5, 28.25], [-12.25, 28.15], [-12.18, 28.18], [-12.03, 28.53], [-11.68, 28.68], [-11.53, 29.03], [-11.18, 29.18], [-11.03, 29.53], [-10.5, 29.75], [-10.25, 29.65], [-10.0, 29.75], [-9.47, 29.53], [-9.25, 29.0], [-9.47, 28.47], [-9.82, 28.32], [-9.97, 27.97], [-10.32, 27.82], [-10.35, 27.75], [-10.25, 27.5], [-10.47, 26.97], [-10.82, 26.82], [-10.85, 26.75], [-10.75, 26.5], [-10.97, 25.97], [-11.5, 25.75], [-11.75, 25.85], [-11.82, 25.82], [-11.97, 25.47], [-12.32, 25.32], [-12.47, 24.97], [-12.82, 24.82], [-12.85, 24.75], [-12.75, 24.5], [-12.97, 23.97], [-13.5, 23.75], [-13.75, 23.85], [-14.0, 23.75], [-14.25, 23.85], [-14.5, 23.75], [-15.03, 23.97], [-15.25, 24.5], [-15.15, 24.75], [-15.25, 25.0], [-15.15, 25.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.959656469396293}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.275407745034708}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.559375208074414, 32.007672689418655, 29.974612442170724]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.1303535461426, 34.27447153727218, 33.170381164550804]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.264667423922979, 6.776050433726739, 4.785505377454411]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.328513726907943, 8.959656469396293, 6.52288412884684]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.81497324719128, 3.0741880720659958, 2.1345795901140883]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.3226326405747906, 5.095175530647162, 2.9562165320302713]}}