{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:33.470015", "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": "2018-Nov-05_to_2018-Nov-07_22.5_-8.0"}, "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": 2018110001469}, "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 05 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 07 2018"}, "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": 51858.23482996075}, "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": -8.0}, "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": 22.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "22.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 20.75}, "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": -11.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -6.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-11-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.47, -11.53], [20.25, -11.0], [20.47, -10.47], [21.0, -10.25], [21.25, -10.35], [21.32, -10.32], [21.46, -10.0], [21.25, -9.5], [21.46, -9.0], [21.25, -8.5], [21.35, -8.25], [21.25, -8.0], [21.35, -7.75], [21.32, -7.68], [20.97, -7.53], [20.75, -7.0], [20.97, -6.47], [21.5, -6.25], [22.03, -6.47], [22.18, -6.82], [22.25, -6.85], [22.5, -6.75], [23.03, -6.97], [23.25, -7.5], [23.15, -7.75], [23.25, -8.0], [23.15, -8.25], [23.25, -8.5], [23.15, -8.75], [23.18, -8.82], [23.53, -8.97], [23.75, -9.5], [23.54, -10.0], [23.75, -10.5], [23.53, -11.03], [23.0, -11.25], [22.7, -11.12], [22.53, -11.53], [22.0, -11.75], [21.75, -11.65], [21.5, -11.75], [21.25, -11.65], [21.0, -11.75], [20.47, -11.53]]]]}, "2018-11-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.47, -11.53], [20.25, -11.0], [20.47, -10.47], [21.0, -10.25], [21.25, -10.35], [21.32, -10.32], [21.46, -10.0], [21.25, -9.5], [21.46, -9.0], [21.25, -8.5], [21.35, -8.25], [21.25, -8.0], [21.35, -7.75], [21.32, -7.68], [20.97, -7.53], [20.75, -7.0], [20.97, -6.47], [21.5, -6.25], [22.03, -6.47], [22.18, -6.82], [22.25, -6.85], [22.5, -6.75], [23.03, -6.97], [23.25, -7.5], [23.15, -7.75], [23.25, -8.0], [23.15, -8.25], [23.25, -8.5], [23.15, -8.75], [23.18, -8.82], [23.53, -8.97], [23.75, -9.5], [23.54, -10.0], [23.75, -10.5], [23.53, -11.03], [23.0, -11.25], [22.7, -11.12], [22.53, -11.53], [22.0, -11.75], [21.75, -11.65], [21.5, -11.75], [21.25, -11.65], [21.0, -11.75], [20.47, -11.53]]]]}, "2018-11-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.47, -11.53], [20.25, -11.0], [20.47, -10.47], [21.0, -10.25], [21.25, -10.35], [21.32, -10.32], [21.46, -10.0], [21.25, -9.5], [21.46, -9.0], [21.25, -8.5], [21.35, -8.25], [21.25, -8.0], [21.35, -7.75], [21.32, -7.68], [20.97, -7.53], [20.75, -7.0], [20.97, -6.47], [21.5, -6.25], [22.03, -6.47], [22.18, -6.82], [22.25, -6.85], [22.5, -6.75], [23.03, -6.97], [23.25, -7.5], [23.15, -7.75], [23.25, -8.0], [23.15, -8.25], [23.25, -8.5], [23.15, -8.75], [23.18, -8.82], [23.53, -8.97], [23.75, -9.5], [23.54, -10.0], [23.75, -10.5], [23.53, -11.03], [23.0, -11.25], [22.7, -11.12], [22.53, -11.53], [22.0, -11.75], [21.75, -11.65], [21.5, -11.75], [21.25, -11.65], [21.0, -11.75], [20.47, -11.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.174807262785862}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.2269430426575196}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.147780976065803, 24.777030787852368, 25.248508401694096]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.667056712900887, 25.809155429563475, 25.604283844238353]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6194825600386213, 2.310186805629254, 2.7511597623046837]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.896294824987649, 2.966108976763678, 3.174807262785862]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.501894548107329, 2.206351500760326, 2.5920252577118625]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8506948208162268, 2.9682901252628553, 2.966273120229548]}}