{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:28.014336", "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-Jan-08_to_2013-Jan-10_28.0_-27.5"}, "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": 2013010001485}, "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": "January 08 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 10 2013"}, "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": 68761.7345780552}, "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": ["Lesotho", "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": -27.5}, "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": 28.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "28.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 27.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 31.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -29.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-01-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.75, -26.5], [26.97, -25.97], [27.5, -25.75], [28.03, -25.97], [28.18, -26.32], [28.25, -26.35], [28.32, -26.32], [28.47, -25.97], [28.82, -25.82], [28.85, -25.75], [28.75, -25.5], [28.97, -24.97], [29.5, -24.75], [30.03, -24.97], [30.18, -25.32], [30.53, -25.47], [30.68, -25.82], [31.03, -25.97], [31.25, -26.5], [31.15, -26.75], [31.18, -26.82], [31.53, -26.97], [31.75, -27.5], [31.53, -28.03], [31.18, -28.18], [31.03, -28.53], [30.5, -28.75], [29.97, -28.53], [29.82, -28.18], [29.75, -28.15], [29.68, -28.18], [29.65, -28.25], [29.75, -28.5], [29.65, -28.75], [29.75, -29.0], [29.53, -29.53], [29.0, -29.75], [28.47, -29.53], [28.25, -29.0], [28.35, -28.75], [28.32, -28.68], [27.97, -28.53], [27.82, -28.18], [27.47, -28.03], [27.25, -27.5], [27.35, -27.25], [27.32, -27.18], [26.97, -27.03], [26.75, -26.5]]]]}, "2013-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.75, -26.5], [26.97, -25.97], [27.5, -25.75], [28.03, -25.97], [28.18, -26.32], [28.25, -26.35], [28.32, -26.32], [28.47, -25.97], [28.82, -25.82], [28.85, -25.75], [28.75, -25.5], [28.97, -24.97], [29.5, -24.75], [30.03, -24.97], [30.18, -25.32], [30.53, -25.47], [30.68, -25.82], [31.03, -25.97], [31.25, -26.5], [31.15, -26.75], [31.18, -26.82], [31.53, -26.97], [31.75, -27.5], [31.53, -28.03], [31.18, -28.18], [31.03, -28.53], [30.5, -28.75], [29.97, -28.53], [29.82, -28.18], [29.75, -28.15], [29.68, -28.18], [29.65, -28.25], [29.75, -28.5], [29.65, -28.75], [29.75, -29.0], [29.53, -29.53], [29.0, -29.75], [28.47, -29.53], [28.25, -29.0], [28.35, -28.75], [28.32, -28.68], [27.97, -28.53], [27.82, -28.18], [27.47, -28.03], [27.25, -27.5], [27.35, -27.25], [27.32, -27.18], [26.97, -27.03], [26.75, -26.5]]]]}, "2013-01-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.75, -26.5], [26.97, -25.97], [27.5, -25.75], [28.03, -25.97], [28.18, -26.32], [28.25, -26.35], [28.32, -26.32], [28.47, -25.97], [28.82, -25.82], [28.85, -25.75], [28.75, -25.5], [28.97, -24.97], [29.5, -24.75], [30.03, -24.97], [30.18, -25.32], [30.53, -25.47], [30.68, -25.82], [31.03, -25.97], [31.25, -26.5], [31.15, -26.75], [31.18, -26.82], [31.53, -26.97], [31.75, -27.5], [31.53, -28.03], [31.18, -28.18], [31.03, -28.53], [30.5, -28.75], [29.97, -28.53], [29.82, -28.18], [29.75, -28.15], [29.68, -28.18], [29.65, -28.25], [29.75, -28.5], [29.65, -28.75], [29.75, -29.0], [29.53, -29.53], [29.0, -29.75], [28.47, -29.53], [28.25, -29.0], [28.35, -28.75], [28.32, -28.68], [27.97, -28.53], [27.82, -28.18], [27.47, -28.03], [27.25, -27.5], [27.35, -27.25], [27.32, -27.18], [26.97, -27.03], [26.75, -26.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.928496484559787}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.8958643771141337}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.533715173091366, 23.737898338346326, 23.946785258494685]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.32739414525571, 26.652961609250838, 26.51559196349814]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.9702798928810603, 4.1898138969959176, 4.527499341465423]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.041730178946523, 5.31192729668345, 5.928496484559787]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.328252465982136, 1.8949410435692062, 2.026043571044604]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6755817343295445, 2.2611853052293363, 2.5546120259460405]}}