{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:49.208463", "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-Jul-30_to_2025-Aug-01_22.5_10.5"}, "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": 2025070003134}, "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": "July 30 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 01 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": 115096.85366228662}, "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": ["Central African Republic", "Chad", "Sudan"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "Africa", "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": 10.5}, "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": 22.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "22.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 20.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 25.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 10.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 13.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[19.47, 12.53], [19.82, 12.68], [19.97, 13.03], [20.32, 13.18], [20.47, 13.53], [21.0, 13.75], [21.25, 13.65], [21.5, 13.75], [22.03, 13.53], [22.18, 13.18], [22.25, 13.15], [22.5, 13.25], [23.03, 13.03], [23.18, 12.68], [23.53, 12.53], [23.68, 12.18], [23.75, 12.15], [24.0, 12.25], [24.25, 12.15], [24.32, 12.18], [24.47, 12.53], [25.0, 12.75], [25.53, 12.53], [25.75, 12.0], [25.53, 11.47], [25.18, 11.32], [25.03, 10.97], [24.68, 10.82], [24.65, 10.75], [24.75, 10.5], [24.53, 9.97], [24.18, 9.82], [24.03, 9.47], [23.5, 9.25], [23.0, 9.46], [22.5, 9.25], [22.25, 9.35], [22.0, 9.25], [21.47, 9.47], [21.25, 10.0], [21.35, 10.25], [21.32, 10.32], [20.97, 10.47], [20.82, 10.82], [20.75, 10.85], [20.5, 10.75], [19.97, 10.97], [19.82, 11.32], [19.47, 11.47], [19.25, 12.0], [19.47, 12.53]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.47, 11.47], [19.25, 12.0], [19.47, 12.53], [19.82, 12.68], [19.97, 13.03], [20.32, 13.18], [20.47, 13.53], [21.0, 13.75], [21.25, 13.65], [21.5, 13.75], [22.03, 13.53], [22.18, 13.18], [22.25, 13.15], [22.5, 13.25], [23.03, 13.03], [23.18, 12.68], [23.53, 12.53], [23.68, 12.18], [23.75, 12.15], [24.0, 12.25], [24.25, 12.15], [24.32, 12.18], [24.47, 12.53], [25.0, 12.75], [25.53, 12.53], [25.75, 12.0], [25.53, 11.47], [25.18, 11.32], [25.03, 10.97], [24.68, 10.82], [24.65, 10.75], [24.75, 10.5], [24.53, 9.97], [24.18, 9.82], [24.03, 9.47], [23.5, 9.25], [23.0, 9.46], [22.5, 9.25], [22.25, 9.35], [22.0, 9.25], [21.47, 9.47], [21.25, 10.0], [21.35, 10.25], [21.32, 10.32], [20.97, 10.47], [20.82, 10.82], [20.75, 10.85], [20.5, 10.75], [19.97, 10.97], [19.82, 11.32], [19.47, 11.47]]]]}, "2025-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.47, 11.47], [19.25, 12.0], [19.47, 12.53], [19.82, 12.68], [19.97, 13.03], [20.32, 13.18], [20.47, 13.53], [21.0, 13.75], [21.25, 13.65], [21.5, 13.75], [22.03, 13.53], [22.18, 13.18], [22.25, 13.15], [22.5, 13.25], [23.03, 13.03], [23.18, 12.68], [23.53, 12.53], [23.68, 12.18], [23.75, 12.15], [24.0, 12.25], [24.25, 12.15], [24.32, 12.18], [24.47, 12.53], [25.0, 12.75], [25.53, 12.53], [25.75, 12.0], [25.53, 11.47], [25.18, 11.32], [25.03, 10.97], [24.68, 10.82], [24.65, 10.75], [24.75, 10.5], [24.53, 9.97], [24.18, 9.82], [24.03, 9.47], [23.5, 9.25], [23.0, 9.46], [22.5, 9.25], [22.25, 9.35], [22.0, 9.25], [21.47, 9.47], [21.25, 10.0], [21.35, 10.25], [21.32, 10.32], [20.97, 10.47], [20.82, 10.82], [20.75, 10.85], [20.5, 10.75], [19.97, 10.97], [19.82, 11.32], [19.47, 11.47]]]]}, "2025-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.47, 11.47], [19.25, 12.0], [19.47, 12.53], [19.82, 12.68], [19.97, 13.03], [20.32, 13.18], [20.47, 13.53], [21.0, 13.75], [21.25, 13.65], [21.5, 13.75], [22.03, 13.53], [22.18, 13.18], [22.25, 13.15], [22.5, 13.25], [23.03, 13.03], [23.18, 12.68], [23.53, 12.53], [23.68, 12.18], [23.75, 12.15], [24.0, 12.25], [24.25, 12.15], [24.32, 12.18], [24.47, 12.53], [25.0, 12.75], [25.53, 12.53], [25.75, 12.0], [25.53, 11.47], [25.18, 11.32], [25.03, 10.97], [24.68, 10.82], [24.65, 10.75], [24.75, 10.5], [24.53, 9.97], [24.18, 9.82], [24.03, 9.47], [23.5, 9.25], [23.0, 9.46], [22.5, 9.25], [22.25, 9.35], [22.0, 9.25], [21.47, 9.47], [21.25, 10.0], [21.35, 10.25], [21.32, 10.32], [20.97, 10.47], [20.82, 10.82], [20.75, 10.85], [20.5, 10.75], [19.97, 10.97], [19.82, 11.32], [19.47, 11.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.3663857845710368}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.1211900202841902}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.929078540467458, 27.33235675744845, 27.560741946571795]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.014906819661462, 28.27586390177413, 29.103725687662802]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.7059260180534181, 2.1765843822438367, 2.4810596605553163]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.210805297417039, 3.0103581943076847, 3.3663857845710368]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7767002802621843, 2.3241594989595513, 2.611100441126094]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.3129995819993856, 3.3257839095503914, 3.266712543543031]}}