{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:53:10.279947", "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": "2024-Sep-02_to_2024-Sep-05_350.5_10.0"}, "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": 2024090000908}, "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": "September 02 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 05 2024"}, "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": 72837.6748225522}, "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": ["Guinea", "Mali"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-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": 10.0}, "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": 350.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "350.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 347.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 352.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 12.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.53, 12.53], [-12.0, 12.75], [-11.75, 12.65], [-11.5, 12.75], [-11.25, 12.65], [-11.0, 12.75], [-10.75, 12.65], [-10.5, 12.75], [-9.97, 12.53], [-9.8, 12.12], [-9.5, 12.25], [-8.97, 12.03], [-8.82, 11.68], [-8.75, 11.65], [-8.5, 11.75], [-7.97, 11.53], [-7.82, 11.18], [-7.47, 11.03], [-7.25, 10.5], [-7.47, 9.97], [-7.82, 9.82], [-7.97, 9.47], [-8.5, 9.25], [-8.75, 9.35], [-9.0, 9.25], [-9.25, 9.35], [-9.32, 9.32], [-9.47, 8.97], [-10.0, 8.75], [-10.53, 8.97], [-10.75, 9.5], [-10.65, 9.75], [-10.75, 10.0], [-10.65, 10.25], [-10.68, 10.32], [-10.75, 10.35], [-11.0, 10.25], [-11.53, 10.47], [-11.68, 10.82], [-11.75, 10.85], [-12.0, 10.75], [-12.53, 10.97], [-12.75, 11.5], [-12.65, 11.75], [-12.75, 12.0], [-12.53, 12.53]]]]}, "2024-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.53, 12.53], [-12.0, 12.75], [-11.75, 12.65], [-11.5, 12.75], [-11.25, 12.65], [-11.0, 12.75], [-10.75, 12.65], [-10.5, 12.75], [-9.97, 12.53], [-9.8, 12.12], [-9.5, 12.25], [-8.97, 12.03], [-8.82, 11.68], [-8.75, 11.65], [-8.5, 11.75], [-7.97, 11.53], [-7.82, 11.18], [-7.47, 11.03], [-7.25, 10.5], [-7.47, 9.97], [-7.82, 9.82], [-7.97, 9.47], [-8.5, 9.25], [-8.75, 9.35], [-9.0, 9.25], [-9.25, 9.35], [-9.32, 9.32], [-9.47, 8.97], [-10.0, 8.75], [-10.53, 8.97], [-10.75, 9.5], [-10.65, 9.75], [-10.75, 10.0], [-10.65, 10.25], [-10.68, 10.32], [-10.75, 10.35], [-11.0, 10.25], [-11.53, 10.47], [-11.68, 10.82], [-11.75, 10.85], [-12.0, 10.75], [-12.53, 10.97], [-12.75, 11.5], [-12.65, 11.75], [-12.75, 12.0], [-12.53, 12.53]]]]}, "2024-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.53, 12.53], [-12.0, 12.75], [-11.75, 12.65], [-11.5, 12.75], [-11.25, 12.65], [-11.0, 12.75], [-10.75, 12.65], [-10.5, 12.75], [-9.97, 12.53], [-9.8, 12.12], [-9.5, 12.25], [-8.97, 12.03], [-8.82, 11.68], [-8.75, 11.65], [-8.5, 11.75], [-7.97, 11.53], [-7.82, 11.18], [-7.47, 11.03], [-7.25, 10.5], [-7.47, 9.97], [-7.82, 9.82], [-7.97, 9.47], [-8.5, 9.25], [-8.75, 9.35], [-9.0, 9.25], [-9.25, 9.35], [-9.32, 9.32], [-9.47, 8.97], [-10.0, 8.75], [-10.53, 8.97], [-10.75, 9.5], [-10.65, 9.75], [-10.75, 10.0], [-10.65, 10.25], [-10.68, 10.32], [-10.75, 10.35], [-11.0, 10.25], [-11.53, 10.47], [-11.68, 10.82], [-11.75, 10.85], [-12.0, 10.75], [-12.53, 10.97], [-12.75, 11.5], [-12.65, 11.75], [-12.75, 12.0], [-12.53, 12.53]]]]}, "2024-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.53, 9.47], [-10.75, 10.0], [-10.53, 10.53], [-10.0, 10.75], [-9.75, 10.65], [-9.5, 10.75], [-8.97, 10.53], [-8.75, 10.0], [-8.97, 9.47], [-9.5, 9.25], [-9.75, 9.35], [-10.0, 9.25], [-10.53, 9.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.202676904629527}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.5455145661391274}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.95947842068142, 26.395196109347864, 26.081680128309472, 25.726838684082054]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.63080749511721, 27.023427581787132, 26.55254262288412, 25.85676218668624]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4007837948562383, 1.8141885795293742, 1.4681539794885456, 0.9865227006578152]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8037707586274223, 2.202676904629527, 2.057425807679408, 1.0038136481225592]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5875621361328944, 2.0702110151357282, 1.7120403892638958, 1.2362473590721015]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.944010301470838, 2.5722371620461364, 2.434570378861159, 1.2414709780357533]}}