{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:10.395637", "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": "2013-Apr-16_to_2013-Apr-19_21.0_-20.0"}, "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": 2013040002141}, "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": "April 16 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 19 2013"}, "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": 52308.8476404289}, "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": ["Botswana", "Namibia"]}, "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": -20.0}, "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": 21.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "21.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 18.25}, "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": -21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -18.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-04-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.97, -18.47], [18.5, -18.25], [19.03, -18.47], [19.18, -18.82], [19.25, -18.85], [19.32, -18.82], [19.47, -18.47], [20.0, -18.25], [20.53, -18.47], [20.7, -18.87], [21.0, -18.75], [21.53, -18.97], [21.68, -19.32], [22.03, -19.47], [22.25, -20.0], [22.03, -20.53], [21.68, -20.68], [21.53, -21.03], [21.18, -21.18], [21.03, -21.53], [20.5, -21.75], [20.25, -21.65], [20.0, -21.75], [19.47, -21.53], [19.25, -21.0], [19.35, -20.75], [19.32, -20.68], [18.97, -20.53], [18.82, -20.18], [18.75, -20.15], [18.5, -20.25], [17.97, -20.03], [17.75, -19.5], [17.85, -19.25], [17.75, -19.0], [17.97, -18.47]]]]}, "2013-04-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.97, -18.47], [18.5, -18.25], [19.03, -18.47], [19.18, -18.82], [19.25, -18.85], [19.32, -18.82], [19.47, -18.47], [20.0, -18.25], [20.53, -18.47], [20.68, -18.82], [20.75, -18.85], [21.0, -18.75], [21.5, -18.96], [22.0, -18.75], [22.53, -18.97], [22.75, -19.5], [22.53, -20.03], [22.18, -20.18], [22.03, -20.53], [21.68, -20.68], [21.53, -21.03], [21.18, -21.18], [21.03, -21.53], [20.5, -21.75], [20.25, -21.65], [20.0, -21.75], [19.47, -21.53], [19.25, -21.0], [19.35, -20.75], [19.32, -20.68], [18.97, -20.53], [18.82, -20.18], [18.75, -20.15], [18.5, -20.25], [17.97, -20.03], [17.75, -19.5], [17.85, -19.25], [17.75, -19.0], [17.97, -18.47]]]]}, "2013-04-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.97, -18.47], [18.5, -18.25], [19.03, -18.47], [19.18, -18.82], [19.25, -18.85], [19.32, -18.82], [19.47, -18.47], [20.0, -18.25], [20.53, -18.47], [20.68, -18.82], [20.75, -18.85], [21.0, -18.75], [21.5, -18.96], [22.0, -18.75], [22.53, -18.97], [22.75, -19.5], [22.53, -20.03], [22.18, -20.18], [22.03, -20.53], [21.68, -20.68], [21.53, -21.03], [21.18, -21.18], [21.03, -21.53], [20.5, -21.75], [20.25, -21.65], [20.0, -21.75], [19.47, -21.53], [19.25, -21.0], [19.35, -20.75], [19.32, -20.68], [18.97, -20.53], [18.82, -20.18], [18.75, -20.15], [18.5, -20.25], [17.97, -20.03], [17.75, -19.5], [17.85, -19.25], [17.75, -19.0], [17.97, -18.47]]]]}, "2013-04-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.75, -19.5], [19.97, -18.97], [20.5, -18.75], [20.75, -18.85], [21.0, -18.75], [21.5, -18.96], [22.0, -18.75], [22.53, -18.97], [22.75, -19.5], [22.53, -20.03], [22.18, -20.18], [22.03, -20.53], [21.5, -20.75], [21.25, -20.65], [21.0, -20.75], [20.47, -20.53], [20.32, -20.18], [19.97, -20.03], [19.75, -19.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.5480591737988902}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.777274896579083}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.95109825425186, 25.122594982530245, 25.198176198006763, 25.285088848345595]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.25225593431037, 26.456022516585676, 26.783321152500605, 26.038067292919038]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.7625307943668886, 2.79408242147908, 2.8208298818168043, 2.607150987162322]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.5480591737988902, 3.475132906065028, 3.337995832043589, 2.8245110388273247]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6166748922786822, 1.685152206779117, 1.7025186302376085, 1.5746863815524796]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0656267842799196, 2.01904087571193, 1.9314077139222077, 1.7832411486054955]}}