{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:12:46.680028", "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-May-04_to_2018-May-06_17.0_-28.5"}, "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": 2018050001581}, "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": "May 04 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 06 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": 93696.31799752911}, "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": ["Namibia", "South Africa"]}, "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": -28.5}, "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": 17.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "17.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 14.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 18.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -30.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -23.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.35, -24.75], [14.25, -24.5], [14.35, -24.25], [14.25, -24.0], [14.35, -23.75], [14.25, -23.5], [14.47, -22.97], [15.0, -22.75], [15.53, -22.97], [15.75, -23.5], [15.65, -23.75], [15.68, -23.82], [15.75, -23.85], [16.0, -23.75], [16.53, -23.97], [16.75, -24.5], [16.54, -25.0], [16.7, -25.37], [17.0, -25.25], [17.53, -25.47], [17.75, -26.0], [17.63, -26.3], [18.03, -26.47], [18.18, -26.82], [18.25, -26.85], [18.5, -26.75], [19.03, -26.97], [19.25, -27.5], [19.03, -28.03], [18.68, -28.18], [18.65, -28.25], [18.75, -28.5], [18.53, -29.03], [18.18, -29.18], [18.15, -29.25], [18.25, -29.5], [18.15, -29.75], [18.18, -29.82], [18.53, -29.97], [18.75, -30.5], [18.53, -31.03], [18.0, -31.25], [17.47, -31.03], [17.32, -30.68], [16.97, -30.53], [16.75, -30.0], [16.85, -29.75], [16.82, -29.68], [16.47, -29.53], [16.25, -29.0], [16.35, -28.75], [16.32, -28.68], [15.97, -28.53], [15.75, -28.0], [15.85, -27.75], [15.82, -27.68], [15.47, -27.53], [15.25, -27.0], [15.35, -26.75], [15.32, -26.68], [14.97, -26.53], [14.82, -26.18], [14.47, -26.03], [14.25, -25.5], [14.35, -25.25], [14.25, -25.0], [14.35, -24.75]]]]}, "2018-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.35, -24.75], [14.25, -24.5], [14.35, -24.25], [14.25, -24.0], [14.35, -23.75], [14.25, -23.5], [14.47, -22.97], [15.0, -22.75], [15.53, -22.97], [15.75, -23.5], [15.65, -23.75], [15.68, -23.82], [15.75, -23.85], [16.0, -23.75], [16.53, -23.97], [16.75, -24.5], [16.54, -25.0], [16.7, -25.37], [17.0, -25.25], [17.53, -25.47], [17.75, -26.0], [17.63, -26.3], [18.03, -26.47], [18.18, -26.82], [18.25, -26.85], [18.5, -26.75], [19.03, -26.97], [19.25, -27.5], [19.03, -28.03], [18.68, -28.18], [18.65, -28.25], [18.75, -28.5], [18.53, -29.03], [18.18, -29.18], [18.15, -29.25], [18.25, -29.5], [18.15, -29.75], [18.18, -29.82], [18.53, -29.97], [18.75, -30.5], [18.53, -31.03], [18.0, -31.25], [17.47, -31.03], [17.32, -30.68], [16.97, -30.53], [16.75, -30.0], [16.85, -29.75], [16.82, -29.68], [16.47, -29.53], [16.25, -29.0], [16.35, -28.75], [16.32, -28.68], [15.97, -28.53], [15.75, -28.0], [15.85, -27.75], [15.82, -27.68], [15.47, -27.53], [15.25, -27.0], [15.35, -26.75], [15.32, -26.68], [14.97, -26.53], [14.82, -26.18], [14.47, -26.03], [14.25, -25.5], [14.35, -25.25], [14.25, -25.0], [14.35, -24.75]]]]}, "2018-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.35, -24.75], [14.25, -24.5], [14.35, -24.25], [14.25, -24.0], [14.35, -23.75], [14.25, -23.5], [14.47, -22.97], [15.0, -22.75], [15.53, -22.97], [15.75, -23.5], [15.65, -23.75], [15.68, -23.82], [15.75, -23.85], [16.0, -23.75], [16.53, -23.97], [16.75, -24.5], [16.54, -25.0], [16.7, -25.37], [17.0, -25.25], [17.53, -25.47], [17.75, -26.0], [17.63, -26.3], [18.03, -26.47], [18.18, -26.82], [18.25, -26.85], [18.5, -26.75], [19.03, -26.97], [19.25, -27.5], [19.03, -28.03], [18.68, -28.18], [18.65, -28.25], [18.75, -28.5], [18.53, -29.03], [18.18, -29.18], [18.15, -29.25], [18.25, -29.5], [18.15, -29.75], [18.18, -29.82], [18.53, -29.97], [18.75, -30.5], [18.53, -31.03], [18.0, -31.25], [17.47, -31.03], [17.32, -30.68], [16.97, -30.53], [16.75, -30.0], [16.85, -29.75], [16.82, -29.68], [16.47, -29.53], [16.25, -29.0], [16.35, -28.75], [16.32, -28.68], [15.97, -28.53], [15.75, -28.0], [15.85, -27.75], [15.82, -27.68], [15.47, -27.53], [15.25, -27.0], [15.35, -26.75], [15.32, -26.68], [14.97, -26.53], [14.82, -26.18], [14.47, -26.03], [14.25, -25.5], [14.35, -25.25], [14.25, -25.0], [14.35, -24.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.61459034988593}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.5309090937222525}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.714293571265102, 24.359598276858662, 24.153644546351813]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.55266615911694, 28.73589619678978, 27.883211161139286]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.0736631533176855, 5.852498298412856, 5.666565829436215]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.896433918381945, 8.61459034988593, 8.54711998215032]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5139442509112084, 1.7543013623901724, 1.7136944865440416]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9477529976146064, 2.624656836531221, 2.6804832731550916]}}