{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:33.538591", "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": "2017-Nov-20_to_2017-Nov-23_27.5_-25.0"}, "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": 2017110002287}, "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 20 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 23 2017"}, "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": 50273.864735559444}, "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": ["South Africa"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.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": -25.0}, "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": 27.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "27.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 26.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 30.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -27.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -24.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.47, -24.47], [27.0, -24.25], [27.25, -24.35], [27.32, -24.32], [27.47, -23.97], [28.0, -23.75], [28.5, -23.96], [29.0, -23.75], [29.53, -23.97], [29.68, -24.32], [30.03, -24.47], [30.25, -25.0], [30.15, -25.25], [30.18, -25.32], [30.53, -25.47], [30.75, -26.0], [30.65, -26.25], [30.75, -26.5], [30.65, -26.75], [30.75, -27.0], [30.53, -27.53], [30.0, -27.75], [29.47, -27.53], [29.25, -27.0], [29.35, -26.75], [29.32, -26.68], [28.97, -26.53], [28.82, -26.18], [28.5, -26.04], [28.0, -26.25], [27.75, -26.15], [27.5, -26.25], [27.25, -26.15], [27.0, -26.25], [26.47, -26.03], [26.25, -25.5], [26.35, -25.25], [26.25, -25.0], [26.47, -24.47]]]]}, "2017-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.35, -24.75], [26.25, -24.5], [26.47, -23.97], [27.0, -23.75], [27.5, -23.96], [28.0, -23.75], [28.5, -23.96], [29.0, -23.75], [29.53, -23.97], [29.68, -24.32], [30.03, -24.47], [30.25, -25.0], [30.15, -25.25], [30.18, -25.32], [30.53, -25.47], [30.75, -26.0], [30.65, -26.25], [30.75, -26.5], [30.65, -26.75], [30.75, -27.0], [30.53, -27.53], [30.0, -27.75], [29.47, -27.53], [29.25, -27.0], [29.35, -26.75], [29.32, -26.68], [28.97, -26.53], [28.82, -26.18], [28.5, -26.04], [28.0, -26.25], [27.75, -26.15], [27.5, -26.25], [27.25, -26.15], [27.0, -26.25], [26.47, -26.03], [26.25, -25.5], [26.35, -25.25], [26.25, -25.0], [26.35, -24.75]]]]}, "2017-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.35, -24.75], [26.25, -24.5], [26.47, -23.97], [27.0, -23.75], [27.5, -23.96], [28.0, -23.75], [28.5, -23.96], [29.0, -23.75], [29.53, -23.97], [29.68, -24.32], [30.03, -24.47], [30.25, -25.0], [30.15, -25.25], [30.18, -25.32], [30.53, -25.47], [30.75, -26.0], [30.65, -26.25], [30.75, -26.5], [30.65, -26.75], [30.75, -27.0], [30.53, -27.53], [30.0, -27.75], [29.47, -27.53], [29.25, -27.0], [29.35, -26.75], [29.32, -26.68], [28.97, -26.53], [28.82, -26.18], [28.5, -26.04], [28.0, -26.25], [27.75, -26.15], [27.5, -26.25], [27.25, -26.15], [27.0, -26.25], [26.47, -26.03], [26.25, -25.5], [26.35, -25.25], [26.25, -25.0], [26.35, -24.75]]]]}, "2017-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.47, -23.97], [27.0, -23.75], [27.53, -23.97], [27.68, -24.32], [28.03, -24.47], [28.25, -25.0], [28.03, -25.53], [27.5, -25.75], [27.25, -25.65], [27.0, -25.75], [26.47, -25.53], [26.25, -25.0], [26.35, -24.75], [26.25, -24.5], [26.47, -23.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.863958766419898}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.214276248284727}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.973943132786303, 26.327686259744837, 25.463917413031027, 27.30908222356919]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.71688800700184, 28.94043535595563, 28.898185792801087, 28.236817631113638]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.7604853820332997, 4.947263688956162, 4.049464262429707, 3.376705094810992]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.287190071515113, 5.863958766419898, 5.09504210578865, 3.516385891348591]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.325188765015327, 1.859037512882904, 1.5933742069505301, 1.306432961961737]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4749255430694257, 2.236148841293304, 1.937157459807579, 1.375052161866601]}}