{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:57:51.215543", "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-Nov-23_to_2025-Nov-25_346.5_25.0"}, "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": 2025110002060}, "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": "November 23 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 25 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": 69963.82025649959}, "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": ["Mauritania", "Morocco"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 25.0}, "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": 346.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "346.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 345.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 349.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 26.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.65, 24.75], [-14.75, 25.0], [-14.65, 25.25], [-14.75, 25.5], [-14.65, 25.75], [-14.75, 26.0], [-14.53, 26.53], [-14.0, 26.75], [-13.75, 26.65], [-13.5, 26.75], [-13.25, 26.65], [-13.0, 26.75], [-12.75, 26.65], [-12.5, 26.75], [-12.25, 26.65], [-12.0, 26.75], [-11.47, 26.53], [-11.32, 26.18], [-10.97, 26.03], [-10.82, 25.68], [-10.47, 25.53], [-10.25, 25.0], [-10.47, 24.47], [-11.0, 24.25], [-11.25, 24.35], [-11.5, 24.25], [-11.75, 24.35], [-11.82, 24.32], [-11.97, 23.97], [-12.32, 23.82], [-12.47, 23.47], [-13.0, 23.25], [-13.25, 23.35], [-13.5, 23.25], [-13.75, 23.35], [-14.0, 23.25], [-14.53, 23.47], [-14.75, 24.0], [-14.65, 24.25], [-14.75, 24.5], [-14.65, 24.75]]]]}, "2025-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.65, 24.75], [-14.75, 25.0], [-14.65, 25.25], [-14.75, 25.5], [-14.65, 25.75], [-14.75, 26.0], [-14.53, 26.53], [-14.0, 26.75], [-13.75, 26.65], [-13.5, 26.75], [-13.25, 26.65], [-13.0, 26.75], [-12.75, 26.65], [-12.5, 26.75], [-12.25, 26.65], [-12.0, 26.75], [-11.47, 26.53], [-11.32, 26.18], [-10.97, 26.03], [-10.82, 25.68], [-10.47, 25.53], [-10.25, 25.0], [-10.47, 24.47], [-11.0, 24.25], [-11.25, 24.35], [-11.5, 24.25], [-11.75, 24.35], [-11.82, 24.32], [-11.97, 23.97], [-12.32, 23.82], [-12.47, 23.47], [-13.0, 23.25], [-13.25, 23.35], [-13.5, 23.25], [-13.75, 23.35], [-14.0, 23.25], [-14.53, 23.47], [-14.75, 24.0], [-14.65, 24.25], [-14.75, 24.5], [-14.65, 24.75]]]]}, "2025-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.65, 24.75], [-14.75, 25.0], [-14.65, 25.25], [-14.75, 25.5], [-14.65, 25.75], [-14.75, 26.0], [-14.53, 26.53], [-14.0, 26.75], [-13.75, 26.65], [-13.5, 26.75], [-13.25, 26.65], [-13.0, 26.75], [-12.75, 26.65], [-12.5, 26.75], [-12.25, 26.65], [-12.0, 26.75], [-11.47, 26.53], [-11.32, 26.18], [-10.97, 26.03], [-10.82, 25.68], [-10.47, 25.53], [-10.25, 25.0], [-10.47, 24.47], [-11.0, 24.25], [-11.25, 24.35], [-11.5, 24.25], [-11.75, 24.35], [-11.82, 24.32], [-11.97, 23.97], [-12.32, 23.82], [-12.47, 23.47], [-13.0, 23.25], [-13.25, 23.35], [-13.5, 23.25], [-13.75, 23.35], [-14.0, 23.25], [-14.53, 23.47], [-14.75, 24.0], [-14.65, 24.25], [-14.75, 24.5], [-14.65, 24.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.650741526282616}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.255301130977132}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.492150115966865, 23.164434407552164, 22.374310913085992]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.226150767008505, 24.20898844401046, 23.148243204752646]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.6209301361077175, 4.407491325547124, 3.7374819312765544]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.650741526282616, 5.342365324266723, 4.114786656449667]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8792517418817547, 1.8353593883111017, 1.5996124020910412]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1704890665881256, 2.4414605761284047, 1.8077140755416474]}}