{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:08:36.763552", "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-Oct-26_to_2025-Oct-29_32.0_0.0"}, "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": 2025100002393}, "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": "October 26 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 29 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 58722.241311861406}, "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": ["Tanzania, United Republic of", "Uganda"]}, "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": 0.0}, "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": 32.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "32.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 30.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 32.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -2.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 1.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[29.47, 1.03], [30.0, 1.25], [30.25, 1.15], [30.32, 1.18], [30.35, 1.25], [30.25, 1.5], [30.47, 2.03], [31.0, 2.25], [31.53, 2.03], [31.75, 1.5], [31.65, 1.25], [31.68, 1.18], [31.75, 1.15], [32.0, 1.25], [32.53, 1.03], [32.75, 0.5], [32.65, 0.25], [32.75, 0.0], [32.54, -0.5], [32.75, -1.0], [32.65, -1.25], [32.75, -1.5], [32.53, -2.03], [32.18, -2.18], [32.03, -2.53], [31.5, -2.75], [30.97, -2.53], [30.75, -2.0], [30.85, -1.75], [30.82, -1.68], [30.75, -1.65], [30.5, -1.75], [29.97, -1.53], [29.75, -1.0], [29.97, -0.47], [30.32, -0.32], [30.35, -0.25], [30.32, -0.18], [30.25, -0.15], [30.0, -0.25], [29.47, -0.03], [29.25, 0.5], [29.47, 1.03]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Eastern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-10-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.0, -0.25], [29.47, -0.03], [29.25, 0.5], [29.47, 1.03], [30.0, 1.25], [30.25, 1.15], [30.32, 1.18], [30.35, 1.25], [30.25, 1.5], [30.47, 2.03], [31.0, 2.25], [31.53, 2.03], [31.75, 1.5], [31.65, 1.25], [31.75, 1.0], [31.65, 0.75], [31.68, 0.68], [31.75, 0.65], [32.0, 0.75], [32.53, 0.53], [32.75, 0.0], [32.54, -0.5], [32.75, -1.0], [32.65, -1.25], [32.75, -1.5], [32.53, -2.03], [32.18, -2.18], [32.03, -2.53], [31.5, -2.75], [30.97, -2.53], [30.75, -2.0], [30.85, -1.75], [30.82, -1.68], [30.75, -1.65], [30.5, -1.75], [29.97, -1.53], [29.75, -1.0], [29.97, -0.47], [30.32, -0.32], [30.35, -0.25], [30.32, -0.18], [30.25, -0.15], [30.0, -0.25]]]]}, "2025-10-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.0, -0.25], [29.47, -0.03], [29.25, 0.5], [29.47, 1.03], [30.0, 1.25], [30.25, 1.15], [30.32, 1.18], [30.35, 1.25], [30.25, 1.5], [30.47, 2.03], [31.0, 2.25], [31.53, 2.03], [31.75, 1.5], [31.65, 1.25], [31.68, 1.18], [31.75, 1.15], [32.0, 1.25], [32.53, 1.03], [32.75, 0.5], [32.65, 0.25], [32.75, 0.0], [32.54, -0.5], [32.75, -1.0], [32.65, -1.25], [32.75, -1.5], [32.53, -2.03], [32.18, -2.18], [32.03, -2.53], [31.5, -2.75], [30.97, -2.53], [30.75, -2.0], [30.85, -1.75], [30.82, -1.68], [30.75, -1.65], [30.5, -1.75], [29.97, -1.53], [29.75, -1.0], [29.97, -0.47], [30.32, -0.32], [30.35, -0.25], [30.32, -0.18], [30.25, -0.15], [30.0, -0.25]]]]}, "2025-10-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.0, -0.25], [29.47, -0.03], [29.25, 0.5], [29.47, 1.03], [30.0, 1.25], [30.25, 1.15], [30.32, 1.18], [30.35, 1.25], [30.25, 1.5], [30.47, 2.03], [31.0, 2.25], [31.53, 2.03], [31.75, 1.5], [31.65, 1.25], [31.68, 1.18], [31.75, 1.15], [32.0, 1.25], [32.53, 1.03], [32.75, 0.5], [32.65, 0.25], [32.75, 0.0], [32.54, -0.5], [32.75, -1.0], [32.65, -1.25], [32.75, -1.5], [32.53, -2.03], [32.18, -2.18], [32.03, -2.53], [31.5, -2.75], [30.97, -2.53], [30.75, -2.0], [30.85, -1.75], [30.82, -1.68], [30.75, -1.65], [30.5, -1.75], [29.97, -1.53], [29.75, -1.0], [29.97, -0.47], [30.32, -0.32], [30.35, -0.25], [30.32, -0.18], [30.25, -0.15], [30.0, -0.25]]]]}, "2025-10-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.97, -0.03], [30.75, 0.5], [30.97, 1.03], [31.5, 1.25], [31.75, 1.15], [32.0, 1.25], [32.53, 1.03], [32.75, 0.5], [32.65, 0.25], [32.75, 0.0], [32.53, -0.53], [32.0, -0.75], [31.47, -0.53], [31.32, -0.18], [30.97, -0.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.400937378914648}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4413048719460095}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.362033275529484, 22.788584779438224, 22.668964974922062, 22.246942138671898]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.523865000406943, 25.45768000284835, 25.434435780843103, 22.635207112630212]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.1931511000003572, 1.6372772057833433, 1.5395895807931257, 0.9838816426365232]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6200276440102357, 2.1333621496563637, 2.400937378914648, 1.133609423763744]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.545087220040345, 2.190237119858331, 2.1250648170305393, 1.300494962300241]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.168631970335543, 2.9443994783493967, 3.063774786421365, 1.4431690751539201]}}