{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:22:20.488171", "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": "2020-Nov-24_to_2020-Nov-26_20.0_-11.0"}, "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": 2020110002231}, "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 24 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 26 2020"}, "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": 60806.81366498205}, "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": ["Angola", "Congo DRC"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "W.Southern-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": -11.0}, "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": 20.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "20.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 18.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 22.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -12.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -8.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.32, -10.82], [19.35, -10.75], [19.25, -10.5], [19.47, -9.97], [19.82, -9.82], [19.97, -9.47], [20.32, -9.32], [20.35, -9.25], [20.25, -9.0], [20.35, -8.75], [20.25, -8.5], [20.47, -7.97], [21.0, -7.75], [21.53, -7.97], [21.68, -8.32], [22.03, -8.47], [22.18, -8.82], [22.53, -8.97], [22.75, -9.5], [22.53, -10.03], [22.18, -10.18], [22.15, -10.25], [22.25, -10.5], [22.03, -11.03], [21.68, -11.18], [21.53, -11.53], [21.0, -11.75], [20.75, -11.65], [20.68, -11.68], [20.53, -12.03], [20.18, -12.18], [20.03, -12.53], [19.5, -12.75], [19.25, -12.65], [19.0, -12.75], [18.47, -12.53], [18.25, -12.0], [18.47, -11.47], [18.82, -11.32], [18.97, -10.97], [19.32, -10.82]]]]}, "2020-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.32, -10.82], [19.35, -10.75], [19.25, -10.5], [19.47, -9.97], [19.82, -9.82], [19.97, -9.47], [20.32, -9.32], [20.35, -9.25], [20.25, -9.0], [20.35, -8.75], [20.25, -8.5], [20.47, -7.97], [21.0, -7.75], [21.53, -7.97], [21.68, -8.32], [22.03, -8.47], [22.18, -8.82], [22.53, -8.97], [22.75, -9.5], [22.53, -10.03], [22.18, -10.18], [22.15, -10.25], [22.25, -10.5], [22.03, -11.03], [21.68, -11.18], [21.53, -11.53], [21.0, -11.75], [20.75, -11.65], [20.68, -11.68], [20.53, -12.03], [20.18, -12.18], [20.03, -12.53], [19.5, -12.75], [19.25, -12.65], [19.0, -12.75], [18.47, -12.53], [18.25, -12.0], [18.47, -11.47], [18.82, -11.32], [18.97, -10.97], [19.32, -10.82]]]]}, "2020-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.32, -10.82], [19.35, -10.75], [19.25, -10.5], [19.47, -9.97], [19.82, -9.82], [19.97, -9.47], [20.32, -9.32], [20.35, -9.25], [20.25, -9.0], [20.35, -8.75], [20.25, -8.5], [20.47, -7.97], [21.0, -7.75], [21.53, -7.97], [21.68, -8.32], [22.03, -8.47], [22.18, -8.82], [22.53, -8.97], [22.75, -9.5], [22.53, -10.03], [22.18, -10.18], [22.15, -10.25], [22.25, -10.5], [22.03, -11.03], [21.68, -11.18], [21.53, -11.53], [21.0, -11.75], [20.75, -11.65], [20.68, -11.68], [20.53, -12.03], [20.18, -12.18], [20.03, -12.53], [19.5, -12.75], [19.25, -12.65], [19.0, -12.75], [18.47, -12.53], [18.25, -12.0], [18.47, -11.47], [18.82, -11.32], [18.97, -10.97], [19.32, -10.82]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.6382758794354118}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.5912079775360874}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.86820127162764, 23.02024105009582, 23.219374465718317]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.02546033030484, 23.99047378910376, 23.904389370772776]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4112118103514035, 1.5848268378958834, 1.7775852843609754]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.7589716598583323, 2.0878987317490214, 2.6382758794354118]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5780925190655233, 1.7923213711616923, 2.045836356913553]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.019056056875481, 2.3475369674066764, 2.9680374894907255]}}