{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:36:05.211350", "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": "2023-Jul-20_to_2023-Jul-22_21.5_-12.5"}, "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": 2023070002175}, "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": "July 20 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 22 2023"}, "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": 99585.48325411843}, "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", "Zambia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": -12.5}, "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": 21.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "21.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 20.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 23.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -15.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -10.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.75, -11.0], [19.97, -10.47], [20.5, -10.25], [20.75, -10.35], [21.0, -10.25], [21.25, -10.35], [21.32, -10.32], [21.47, -9.97], [22.0, -9.75], [22.25, -9.85], [22.5, -9.75], [23.03, -9.97], [23.18, -10.32], [23.53, -10.47], [23.75, -11.0], [23.54, -11.5], [23.75, -12.0], [23.53, -12.53], [23.13, -12.7], [23.25, -13.0], [23.15, -13.25], [23.25, -13.5], [23.15, -13.75], [23.25, -14.0], [23.15, -14.25], [23.25, -14.5], [23.03, -15.03], [22.68, -15.18], [22.53, -15.53], [22.0, -15.75], [21.47, -15.53], [21.32, -15.18], [20.97, -15.03], [20.75, -14.5], [20.85, -14.25], [20.75, -14.0], [20.85, -13.75], [20.75, -13.5], [20.85, -13.25], [20.82, -13.18], [20.47, -13.03], [20.25, -12.5], [20.35, -12.25], [20.25, -12.0], [20.35, -11.75], [20.32, -11.68], [19.97, -11.53], [19.75, -11.0]]]]}, "2023-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.75, -11.0], [19.97, -10.47], [20.5, -10.25], [20.75, -10.35], [21.0, -10.25], [21.25, -10.35], [21.32, -10.32], [21.47, -9.97], [22.0, -9.75], [22.25, -9.85], [22.5, -9.75], [23.03, -9.97], [23.18, -10.32], [23.53, -10.47], [23.75, -11.0], [23.54, -11.5], [23.75, -12.0], [23.53, -12.53], [23.13, -12.7], [23.25, -13.0], [23.15, -13.25], [23.25, -13.5], [23.15, -13.75], [23.25, -14.0], [23.15, -14.25], [23.25, -14.5], [23.03, -15.03], [22.68, -15.18], [22.53, -15.53], [22.0, -15.75], [21.47, -15.53], [21.32, -15.18], [20.97, -15.03], [20.75, -14.5], [20.85, -14.25], [20.75, -14.0], [20.85, -13.75], [20.75, -13.5], [20.85, -13.25], [20.82, -13.18], [20.47, -13.03], [20.25, -12.5], [20.35, -12.25], [20.25, -12.0], [20.35, -11.75], [20.32, -11.68], [19.97, -11.53], [19.75, -11.0]]]]}, "2023-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.75, -11.0], [19.97, -10.47], [20.5, -10.25], [20.75, -10.35], [21.0, -10.25], [21.25, -10.35], [21.32, -10.32], [21.47, -9.97], [22.0, -9.75], [22.25, -9.85], [22.5, -9.75], [23.03, -9.97], [23.18, -10.32], [23.53, -10.47], [23.75, -11.0], [23.54, -11.5], [23.75, -12.0], [23.53, -12.53], [23.13, -12.7], [23.25, -13.0], [23.15, -13.25], [23.25, -13.5], [23.15, -13.75], [23.25, -14.0], [23.15, -14.25], [23.25, -14.5], [23.03, -15.03], [22.68, -15.18], [22.53, -15.53], [22.0, -15.75], [21.47, -15.53], [21.32, -15.18], [20.97, -15.03], [20.75, -14.5], [20.85, -14.25], [20.75, -14.0], [20.85, -13.75], [20.75, -13.5], [20.85, -13.25], [20.82, -13.18], [20.47, -13.03], [20.25, -12.5], [20.35, -12.25], [20.25, -12.0], [20.35, -11.75], [20.32, -11.68], [19.97, -11.53], [19.75, -11.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.848080434196447}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.8053328394746395}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.605690670763124, 23.989724822184655, 23.03595134537511]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.34596695129187, 25.34285469988282, 24.785405915465958]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.2813024453284303, 3.5822638369246964, 2.5524322361707923]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.840393867709338, 4.848080434196447, 3.4941325337309195]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6499307770044225, 2.565764471209027, 1.8307725448293581]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.946791449355426, 3.3384162296771875, 2.459621677024569]}}