{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:05:32.171986", "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-May-24_to_2025-May-26_34.5_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": 2025050002384}, "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": "May 24 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 26 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": 51469.582989782066}, "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": ["Ethiopia", "South Sudan", "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": 34.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "34.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 32.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 34.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 10.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 12.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[31.97, 13.03], [32.5, 13.25], [33.03, 13.03], [33.18, 12.68], [33.25, 12.65], [33.32, 12.68], [33.47, 13.03], [34.0, 13.25], [34.53, 13.03], [34.68, 12.68], [35.03, 12.53], [35.25, 12.0], [35.15, 11.75], [35.25, 11.5], [35.15, 11.25], [35.25, 11.0], [35.15, 10.75], [35.25, 10.5], [35.03, 9.97], [34.5, 9.75], [33.97, 9.97], [33.82, 10.32], [33.75, 10.35], [33.5, 10.25], [32.97, 10.47], [32.82, 10.82], [32.75, 10.85], [32.5, 10.75], [32.25, 10.85], [32.0, 10.75], [31.47, 10.97], [31.25, 11.5], [31.47, 12.03], [31.82, 12.18], [31.85, 12.25], [31.75, 12.5], [31.97, 13.03]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.85, 12.25], [31.75, 12.5], [31.97, 13.03], [32.5, 13.25], [33.03, 13.03], [33.18, 12.68], [33.25, 12.65], [33.32, 12.68], [33.47, 13.03], [34.0, 13.25], [34.53, 13.03], [34.68, 12.68], [35.03, 12.53], [35.25, 12.0], [35.15, 11.75], [35.25, 11.5], [35.15, 11.25], [35.25, 11.0], [35.15, 10.75], [35.25, 10.5], [35.03, 9.97], [34.5, 9.75], [33.97, 9.97], [33.82, 10.32], [33.75, 10.35], [33.5, 10.25], [32.97, 10.47], [32.82, 10.82], [32.75, 10.85], [32.5, 10.75], [32.25, 10.85], [32.0, 10.75], [31.47, 10.97], [31.25, 11.5], [31.47, 12.03], [31.82, 12.18], [31.85, 12.25]]]]}, "2025-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.85, 12.25], [31.75, 12.5], [31.97, 13.03], [32.5, 13.25], [33.03, 13.03], [33.18, 12.68], [33.25, 12.65], [33.32, 12.68], [33.47, 13.03], [34.0, 13.25], [34.53, 13.03], [34.68, 12.68], [35.03, 12.53], [35.25, 12.0], [35.15, 11.75], [35.25, 11.5], [35.15, 11.25], [35.25, 11.0], [35.15, 10.75], [35.25, 10.5], [35.03, 9.97], [34.5, 9.75], [33.97, 9.97], [33.82, 10.32], [33.75, 10.35], [33.5, 10.25], [32.97, 10.47], [32.82, 10.82], [32.75, 10.85], [32.5, 10.75], [32.25, 10.85], [32.0, 10.75], [31.47, 10.97], [31.25, 11.5], [31.47, 12.03], [31.82, 12.18], [31.85, 12.25]]]]}, "2025-05-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.85, 12.25], [31.75, 12.5], [31.97, 13.03], [32.5, 13.25], [33.03, 13.03], [33.18, 12.68], [33.25, 12.65], [33.32, 12.68], [33.47, 13.03], [34.0, 13.25], [34.53, 13.03], [34.68, 12.68], [35.03, 12.53], [35.25, 12.0], [35.15, 11.75], [35.25, 11.5], [35.15, 11.25], [35.25, 11.0], [35.15, 10.75], [35.25, 10.5], [35.03, 9.97], [34.5, 9.75], [33.97, 9.97], [33.82, 10.32], [33.75, 10.35], [33.5, 10.25], [32.97, 10.47], [32.82, 10.82], [32.75, 10.85], [32.5, 10.75], [32.25, 10.85], [32.0, 10.75], [31.47, 10.97], [31.25, 11.5], [31.47, 12.03], [31.82, 12.18], [31.85, 12.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.589852801082202}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.9378086053088635}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [33.36763220394363, 33.60685516058231, 32.992473931406096]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [35.1038693745931, 35.13920618693038, 35.027529652913415]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.8040810245697183, 3.2176206623252264, 2.791724129031646]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.117148834821421, 3.589852801082202, 3.074434142110647]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3998106620307809, 1.5854591144032477, 1.3823346393530533]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6107858355428168, 1.7568338433093451, 1.4890761575161442]}}