{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:07:05.579479", "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-Aug-03_to_2025-Aug-05_20.5_12.5"}, "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": 2025080001329}, "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": "August 03 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 05 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": 66446.918118047}, "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": ["Chad", "Sudan"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 12.5}, "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": 20.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "20.5\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": 23.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 11.5}, "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": [[[[19.25, 13.0], [19.47, 13.53], [20.0, 13.75], [20.25, 13.65], [20.5, 13.75], [20.75, 13.65], [21.0, 13.75], [21.25, 13.65], [21.5, 13.75], [21.75, 13.65], [22.0, 13.75], [22.53, 13.53], [22.68, 13.18], [23.03, 13.03], [23.18, 12.68], [23.53, 12.53], [23.75, 12.0], [23.53, 11.47], [23.18, 11.32], [23.03, 10.97], [22.5, 10.75], [22.25, 10.85], [22.0, 10.75], [21.5, 10.96], [21.0, 10.75], [20.75, 10.85], [20.5, 10.75], [19.97, 10.97], [19.82, 11.32], [19.47, 11.47], [19.25, 12.0], [19.35, 12.25], [19.25, 12.5], [19.35, 12.75], [19.25, 13.0]]]]}}, "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": {"2025-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.25, 12.5], [19.35, 12.75], [19.25, 13.0], [19.47, 13.53], [20.0, 13.75], [20.25, 13.65], [20.5, 13.75], [20.75, 13.65], [21.0, 13.75], [21.25, 13.65], [21.5, 13.75], [21.75, 13.65], [22.0, 13.75], [22.53, 13.53], [22.68, 13.18], [23.03, 13.03], [23.18, 12.68], [23.53, 12.53], [23.75, 12.0], [23.53, 11.47], [23.18, 11.32], [23.03, 10.97], [22.5, 10.75], [22.25, 10.85], [22.0, 10.75], [21.5, 10.96], [21.0, 10.75], [20.75, 10.85], [20.5, 10.75], [19.97, 10.97], [19.82, 11.32], [19.47, 11.47], [19.25, 12.0], [19.35, 12.25], [19.25, 12.5]]]]}, "2025-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.25, 12.5], [19.35, 12.75], [19.25, 13.0], [19.47, 13.53], [20.0, 13.75], [20.25, 13.65], [20.5, 13.75], [20.75, 13.65], [21.0, 13.75], [21.25, 13.65], [21.5, 13.75], [21.75, 13.65], [22.0, 13.75], [22.53, 13.53], [22.68, 13.18], [23.03, 13.03], [23.18, 12.68], [23.53, 12.53], [23.75, 12.0], [23.53, 11.47], [23.18, 11.32], [23.03, 10.97], [22.5, 10.75], [22.25, 10.85], [22.0, 10.75], [21.5, 10.96], [21.0, 10.75], [20.75, 10.85], [20.5, 10.75], [19.97, 10.97], [19.82, 11.32], [19.47, 11.47], [19.25, 12.0], [19.35, 12.25], [19.25, 12.5]]]]}, "2025-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.25, 12.5], [19.35, 12.75], [19.25, 13.0], [19.47, 13.53], [20.0, 13.75], [20.25, 13.65], [20.5, 13.75], [20.75, 13.65], [21.0, 13.75], [21.25, 13.65], [21.5, 13.75], [21.75, 13.65], [22.0, 13.75], [22.53, 13.53], [22.68, 13.18], [23.03, 13.03], [23.18, 12.68], [23.53, 12.53], [23.75, 12.0], [23.53, 11.47], [23.18, 11.32], [23.03, 10.97], [22.5, 10.75], [22.25, 10.85], [22.0, 10.75], [21.5, 10.96], [21.0, 10.75], [20.75, 10.85], [20.5, 10.75], [19.97, 10.97], [19.82, 11.32], [19.47, 11.47], [19.25, 12.0], [19.35, 12.25], [19.25, 12.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.440303893121552}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.204823954341911}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.042960450143596, 27.41823464595916, 27.651222830107713]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.449099477132165, 29.0574724833171, 29.417387898763025]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.8086615780128505, 2.264663073185925, 2.541147211826957]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.262394083768129, 2.8517599183956577, 3.440303893121552]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8101698722619004, 2.318881019222408, 2.627541632120697]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.379593712246676, 2.7013585216842646, 3.368436732098991]}}