{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:07:54.105121", "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_347.0_27.0"}, "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": 2025090001348}, "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": 96732.84090697498}, "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"]}, "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": 27.0}, "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": 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": 345.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 350.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 29.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-15.25, 25.0], [-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], [-9.35, 28.75], [-9.25, 28.5], [-9.47, 27.97], [-9.82, 27.82], [-9.97, 27.47], [-10.32, 27.32], [-10.47, 26.97], [-10.82, 26.82], [-10.97, 26.47], [-11.32, 26.32], [-11.47, 25.97], [-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], [-13.82, 23.82], [-13.97, 23.47], [-14.5, 23.25], [-15.03, 23.47], [-15.25, 24.0], [-15.15, 24.25], [-15.25, 24.5], [-15.15, 24.75], [-15.25, 25.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": [[[[-15.25, 24.5], [-15.149999999999977, 24.75], [-15.25, 25.0], [-15.149999999999977, 25.25], [-15.25, 25.5], [-15.029999999999973, 26.03], [-14.680000000000007, 26.18], [-14.529999999999973, 26.53], [-14.180000000000007, 26.68], [-14.029999999999973, 27.03], [-13.680000000000007, 27.18], [-13.529999999999973, 27.53], [-13.180000000000007, 27.68], [-13.029999999999973, 28.03], [-12.5, 28.25], [-12.25, 28.15], [-12.180000000000007, 28.18], [-12.029999999999973, 28.53], [-11.680000000000007, 28.68], [-11.529999999999973, 29.03], [-11.180000000000007, 29.18], [-11.029999999999973, 29.53], [-10.5, 29.75], [-10.25, 29.65], [-10.0, 29.75], [-9.470000000000027, 29.53], [-9.25, 29.0], [-9.350000000000023, 28.75], [-9.25, 28.5], [-9.470000000000027, 27.97], [-9.819999999999993, 27.82], [-9.970000000000027, 27.47], [-10.319999999999993, 27.32], [-10.470000000000027, 26.97], [-10.819999999999993, 26.82], [-10.970000000000027, 26.47], [-11.319999999999993, 26.32], [-11.470000000000027, 25.97], [-11.819999999999993, 25.82], [-11.970000000000027, 25.47], [-12.319999999999993, 25.32], [-12.470000000000027, 24.97], [-12.819999999999993, 24.82], [-12.850000000000023, 24.75], [-12.75, 24.5], [-12.970000000000027, 23.97], [-13.5, 23.75], [-13.75, 23.85], [-13.819999999999993, 23.82], [-13.970000000000027, 23.47], [-14.5, 23.25], [-15.029999999999973, 23.47], [-15.25, 24.0], [-15.149999999999977, 24.25], [-15.25, 24.5]]]]}, "2025-09-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.25, 24.5], [-15.149999999999977, 24.75], [-15.25, 25.0], [-15.149999999999977, 25.25], [-15.25, 25.5], [-15.029999999999973, 26.03], [-14.680000000000007, 26.18], [-14.529999999999973, 26.53], [-14.180000000000007, 26.68], [-14.029999999999973, 27.03], [-13.680000000000007, 27.18], [-13.529999999999973, 27.53], [-13.180000000000007, 27.68], [-13.029999999999973, 28.03], [-12.5, 28.25], [-12.25, 28.15], [-12.180000000000007, 28.18], [-12.029999999999973, 28.53], [-11.680000000000007, 28.68], [-11.529999999999973, 29.03], [-11.180000000000007, 29.18], [-11.029999999999973, 29.53], [-10.5, 29.75], [-10.25, 29.65], [-10.0, 29.75], [-9.470000000000027, 29.53], [-9.25, 29.0], [-9.350000000000023, 28.75], [-9.25, 28.5], [-9.470000000000027, 27.97], [-9.819999999999993, 27.82], [-9.970000000000027, 27.47], [-10.319999999999993, 27.32], [-10.470000000000027, 26.97], [-10.819999999999993, 26.82], [-10.970000000000027, 26.47], [-11.319999999999993, 26.32], [-11.470000000000027, 25.97], [-11.819999999999993, 25.82], [-11.970000000000027, 25.47], [-12.319999999999993, 25.32], [-12.470000000000027, 24.97], [-12.819999999999993, 24.82], [-12.850000000000023, 24.75], [-12.75, 24.5], [-12.970000000000027, 23.97], [-13.5, 23.75], [-13.75, 23.85], [-13.819999999999993, 23.82], [-13.970000000000027, 23.47], [-14.5, 23.25], [-15.029999999999973, 23.47], [-15.25, 24.0], [-15.149999999999977, 24.25], [-15.25, 24.5]]]]}, "2025-09-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.25, 24.5], [-15.149999999999977, 24.75], [-15.25, 25.0], [-15.149999999999977, 25.25], [-15.25, 25.5], [-15.029999999999973, 26.03], [-14.680000000000007, 26.18], [-14.529999999999973, 26.53], [-14.180000000000007, 26.68], [-14.029999999999973, 27.03], [-13.680000000000007, 27.18], [-13.529999999999973, 27.53], [-13.180000000000007, 27.68], [-13.029999999999973, 28.03], [-12.5, 28.25], [-12.25, 28.15], [-12.180000000000007, 28.18], [-12.029999999999973, 28.53], [-11.680000000000007, 28.68], [-11.529999999999973, 29.03], [-11.180000000000007, 29.18], [-11.029999999999973, 29.53], [-10.5, 29.75], [-10.25, 29.65], [-10.0, 29.75], [-9.470000000000027, 29.53], [-9.25, 29.0], [-9.350000000000023, 28.75], [-9.25, 28.5], [-9.470000000000027, 27.97], [-9.819999999999993, 27.82], [-9.970000000000027, 27.47], [-10.319999999999993, 27.32], [-10.470000000000027, 26.97], [-10.819999999999993, 26.82], [-10.970000000000027, 26.47], [-11.319999999999993, 26.32], [-11.470000000000027, 25.97], [-11.819999999999993, 25.82], [-11.970000000000027, 25.47], [-12.319999999999993, 25.32], [-12.470000000000027, 24.97], [-12.819999999999993, 24.82], [-12.850000000000023, 24.75], [-12.75, 24.5], [-12.970000000000027, 23.97], [-13.5, 23.75], [-13.75, 23.85], [-13.819999999999993, 23.82], [-13.970000000000027, 23.47], [-14.5, 23.25], [-15.029999999999973, 23.47], [-15.25, 24.0], [-15.149999999999977, 24.25], [-15.25, 24.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.02062889127717}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.182455727871259}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.661461712065147, 31.9890292939686, 29.923496863955563]}, "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": [4.128005542546628, 6.645136192773413, 4.774225448293734]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.1485496656005125, 9.02062889127717, 6.542849647624735]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7229977728384511, 3.091942733105058, 2.3524342746558036]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1320359351304683, 5.33670040732499, 3.4484641255246347]}}