{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:55:10.065851", "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-Apr-05_to_2025-Apr-09_13.5_2.5"}, "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": 2025040001094}, "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": "April 05 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 09 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 77124.00040115992}, "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": ["Cameroon", "Central African Republic", "Congo"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "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": 2.5}, "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": 13.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "13.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 12.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 15.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 1.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.0, 4.75], [13.53, 4.53], [13.75, 4.0], [13.53, 3.47], [13.0, 3.25], [12.47, 3.47], [12.25, 4.0], [12.47, 4.53], [13.0, 4.75]]]]}, "2025-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.97, 1.97], [12.75, 2.5], [12.97, 3.03], [13.5, 3.25], [14.03, 3.03], [14.25, 2.5], [14.03, 1.97], [13.5, 1.75], [12.97, 1.97]]], [[[14.75, 3.5], [14.97, 4.03], [15.5, 4.25], [16.03, 4.03], [16.25, 3.5], [16.03, 2.97], [15.5, 2.75], [14.97, 2.97], [14.75, 3.5]]], [[[13.5, 5.75], [14.03, 5.53], [14.25, 5.0], [14.15, 4.75], [14.25, 4.5], [14.03, 3.97], [13.68, 3.82], [13.53, 3.47], [13.0, 3.25], [12.47, 3.47], [12.25, 4.0], [12.47, 4.53], [12.82, 4.68], [12.85, 4.75], [12.75, 5.0], [12.97, 5.53], [13.5, 5.75]]]]}, "2025-04-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.75, 5.0], [12.97, 5.53], [13.5, 5.75], [14.0, 5.54], [14.5, 5.75], [15.03, 5.53], [15.18, 5.18], [15.25, 5.15], [15.5, 5.25], [16.03, 5.03], [16.25, 4.5], [16.15, 4.25], [16.25, 4.0], [16.15, 3.75], [16.25, 3.5], [16.03, 2.97], [15.68, 2.82], [15.53, 2.47], [15.18, 2.32], [15.15, 2.25], [15.25, 2.0], [15.03, 1.47], [14.68, 1.32], [14.53, 0.97], [14.0, 0.75], [13.47, 0.97], [13.25, 1.5], [13.35, 1.75], [13.32, 1.82], [12.97, 1.97], [12.75, 2.5], [12.85, 2.75], [12.75, 3.0], [12.88, 3.3], [12.47, 3.47], [12.25, 4.0], [12.47, 4.53], [12.82, 4.68], [12.85, 4.75], [12.75, 5.0]]]]}, "2025-04-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.97, 3.53], [13.32, 3.68], [13.35, 3.75], [13.32, 3.82], [12.97, 3.97], [12.75, 4.5], [12.85, 4.75], [12.75, 5.0], [12.97, 5.53], [13.5, 5.75], [14.0, 5.54], [14.5, 5.75], [15.03, 5.53], [15.18, 5.18], [15.25, 5.15], [15.5, 5.25], [16.03, 5.03], [16.25, 4.5], [16.15, 4.25], [16.25, 4.0], [16.15, 3.75], [16.25, 3.5], [16.03, 2.97], [15.68, 2.82], [15.53, 2.47], [15.18, 2.32], [15.15, 2.25], [15.25, 2.0], [15.03, 1.47], [14.68, 1.32], [14.53, 0.97], [14.0, 0.75], [13.47, 0.97], [13.25, 1.5], [13.35, 1.75], [13.32, 1.82], [12.97, 1.97], [12.75, 2.5], [12.85, 2.75], [12.75, 3.0], [12.97, 3.53]]]]}, "2025-04-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.97, 3.53], [13.32, 3.68], [13.35, 3.75], [13.25, 4.0], [13.47, 4.53], [13.82, 4.68], [13.85, 4.75], [13.75, 5.0], [13.97, 5.53], [14.5, 5.75], [15.03, 5.53], [15.18, 5.18], [15.25, 5.15], [15.5, 5.25], [16.03, 5.03], [16.25, 4.5], [16.15, 4.25], [16.25, 4.0], [16.15, 3.75], [16.25, 3.5], [16.03, 2.97], [15.68, 2.82], [15.53, 2.47], [15.18, 2.32], [15.15, 2.25], [15.25, 2.0], [15.03, 1.47], [14.68, 1.32], [14.53, 0.97], [14.0, 0.75], [13.47, 0.97], [13.25, 1.5], [13.35, 1.75], [13.32, 1.82], [12.97, 1.97], [12.75, 2.5], [12.85, 2.75], [12.75, 3.0], [12.97, 3.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.673091543607768}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.070879786903458}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.087092336018884, 26.347421518961596, 26.99924418131519, 27.002737511528892, 26.946788464170538]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.087092336018884, 26.753362274169945, 27.464771525065146, 27.699603017171228, 27.81908442179366]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.495980487565248, 1.6282775055286038, 2.0882665714467454, 2.132038221130957, 2.1111269992293815]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.495980487565248, 1.8849912016962094, 2.3772784679565007, 2.503648082068537, 2.673091543607768]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.369566914848233, 1.4466656253109416, 1.842888447471568, 1.8560888961984023, 1.8606202425589244]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.369566914848233, 1.7308647991171553, 2.1899174496786786, 2.258149928598934, 2.2938958339885325]}}