{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:14.551232", "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": "2012-Aug-11_to_2012-Aug-15_27.5_-12.0"}, "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": 2012080002140}, "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": "August 11 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 15 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 60265.464138140735}, "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": ["E.Southern-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": -12.0}, "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": 23.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 28.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -13.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -11.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.97, -11.97], [26.32, -11.82], [26.47, -11.47], [27.0, -11.25], [27.25, -11.35], [27.5, -11.25], [28.03, -11.47], [28.18, -11.82], [28.53, -11.97], [28.68, -12.32], [29.03, -12.47], [29.25, -13.0], [29.03, -13.53], [28.68, -13.68], [28.53, -14.03], [28.0, -14.25], [27.75, -14.15], [27.5, -14.25], [27.25, -14.15], [27.0, -14.25], [26.47, -14.03], [26.32, -13.68], [25.97, -13.53], [25.75, -13.0], [25.85, -12.75], [25.75, -12.5], [25.97, -11.97]]]]}, "2012-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.5, -11.75], [25.75, -11.85], [26.0, -11.75], [26.25, -11.85], [26.32, -11.82], [26.47, -11.47], [27.0, -11.25], [27.25, -11.35], [27.5, -11.25], [28.03, -11.47], [28.18, -11.82], [28.53, -11.97], [28.68, -12.32], [29.03, -12.47], [29.25, -13.0], [29.03, -13.53], [28.68, -13.68], [28.53, -14.03], [28.0, -14.25], [27.75, -14.15], [27.5, -14.25], [27.25, -14.15], [27.0, -14.25], [26.47, -14.03], [26.32, -13.68], [25.97, -13.53], [25.82, -13.18], [25.75, -13.15], [25.68, -13.18], [25.53, -13.53], [25.0, -13.75], [24.47, -13.53], [24.25, -13.0], [24.47, -12.47], [24.82, -12.32], [24.97, -11.97], [25.5, -11.75]]]]}, "2012-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.97, -12.47], [23.5, -12.25], [23.75, -12.35], [24.0, -12.25], [24.25, -12.35], [24.5, -12.25], [24.75, -12.35], [24.82, -12.32], [24.97, -11.97], [25.5, -11.75], [25.75, -11.85], [26.0, -11.75], [26.25, -11.85], [26.32, -11.82], [26.47, -11.47], [27.0, -11.25], [27.25, -11.35], [27.5, -11.25], [28.03, -11.47], [28.18, -11.82], [28.53, -11.97], [28.68, -12.32], [29.03, -12.47], [29.25, -13.0], [29.03, -13.53], [28.68, -13.68], [28.53, -14.03], [28.0, -14.25], [27.75, -14.15], [27.5, -14.25], [27.25, -14.15], [27.0, -14.25], [26.47, -14.03], [26.32, -13.68], [25.97, -13.53], [25.82, -13.18], [25.75, -13.15], [25.68, -13.18], [25.53, -13.53], [25.0, -13.75], [24.75, -13.65], [24.5, -13.75], [24.25, -13.65], [24.18, -13.68], [24.03, -14.03], [23.5, -14.25], [22.97, -14.03], [22.75, -13.5], [22.85, -13.25], [22.75, -13.0], [22.97, -12.47]]]]}, "2012-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.5, -12.25], [23.75, -12.35], [24.0, -12.25], [24.25, -12.35], [24.5, -12.25], [24.75, -12.35], [24.82, -12.32], [24.97, -11.97], [25.5, -11.75], [25.75, -11.85], [26.0, -11.75], [26.53, -11.97], [26.75, -12.5], [26.53, -13.03], [26.0, -13.25], [25.75, -13.15], [25.68, -13.18], [25.53, -13.53], [25.0, -13.75], [24.75, -13.65], [24.5, -13.75], [24.25, -13.65], [24.18, -13.68], [24.03, -14.03], [23.5, -14.25], [22.97, -14.03], [22.75, -13.5], [22.85, -13.25], [22.75, -13.0], [22.97, -12.47], [23.5, -12.25]]], [[[26.97, -11.47], [27.5, -11.25], [28.03, -11.47], [28.25, -12.0], [28.15, -12.25], [28.25, -12.5], [28.03, -13.03], [27.5, -13.25], [26.97, -13.03], [26.75, -12.5], [26.85, -12.25], [26.75, -12.0], [26.97, -11.47]]]]}, "2012-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.97, -12.47], [23.5, -12.25], [23.75, -12.35], [24.0, -12.25], [24.25, -12.35], [24.5, -12.25], [25.03, -12.47], [25.25, -13.0], [25.03, -13.53], [24.5, -13.75], [24.25, -13.65], [24.18, -13.68], [24.03, -14.03], [23.5, -14.25], [22.97, -14.03], [22.75, -13.5], [22.85, -13.25], [22.75, -13.0], [22.97, -12.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.2935862916888254}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.4501642682528004}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.11382021942586, 22.892671638284355, 23.409054341700823, 23.68995889108146, 23.814338205119782]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.387271186171176, 24.021219961534825, 24.804450933704572, 24.5513544623484, 24.217507369939938]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.1625453420592273, 2.5709101762972857, 2.7235533188743575, 2.2438734996585166, 1.9272463908849318]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.451924042714552, 2.9993578673696675, 3.2935862916888254, 2.4566698857374263, 1.995910192894371]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.303175339647309, 1.5212413038569852, 1.6031006108526864, 1.3547013859774129, 1.2029799863539548]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.457076973448622, 1.761352016736198, 1.8743053760451993, 1.5552384550120015, 1.2479699891110647]}}