{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:55.237528", "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-Mar-17_to_2013-Mar-20_28.5_-21.0"}, "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": 2013030002014}, "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": "March 17 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 20 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": 75195.8677018878}, "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", "Zimbabwe"]}, "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": -21.0}, "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": 28.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "28.5\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": -22.25}, "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": {"2013-03-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.85, -20.75], [26.75, -20.5], [26.97, -19.97], [27.32, -19.82], [27.47, -19.47], [28.0, -19.25], [28.25, -19.35], [28.5, -19.25], [28.75, -19.35], [29.0, -19.25], [29.25, -19.35], [29.32, -19.32], [29.47, -18.97], [30.0, -18.75], [30.53, -18.97], [30.75, -19.5], [30.53, -20.03], [30.18, -20.18], [30.15, -20.25], [30.18, -20.32], [30.53, -20.47], [30.75, -21.0], [30.65, -21.25], [30.75, -21.5], [30.53, -22.03], [30.0, -22.25], [29.75, -22.15], [29.68, -22.18], [29.53, -22.53], [29.0, -22.75], [28.47, -22.53], [28.32, -22.18], [28.25, -22.15], [28.0, -22.25], [27.75, -22.15], [27.5, -22.25], [26.97, -22.03], [26.75, -21.5], [26.85, -21.25], [26.75, -21.0], [26.85, -20.75]]]]}, "2013-03-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.47, -18.47], [27.0, -18.25], [27.53, -18.47], [27.68, -18.82], [28.03, -18.97], [28.18, -19.32], [28.25, -19.35], [28.5, -19.25], [28.75, -19.35], [29.0, -19.25], [29.25, -19.35], [29.32, -19.32], [29.47, -18.97], [30.0, -18.75], [30.53, -18.97], [30.75, -19.5], [30.53, -20.03], [30.18, -20.18], [30.15, -20.25], [30.18, -20.32], [30.53, -20.47], [30.75, -21.0], [30.65, -21.25], [30.75, -21.5], [30.53, -22.03], [30.0, -22.25], [29.75, -22.15], [29.68, -22.18], [29.53, -22.53], [29.0, -22.75], [28.47, -22.53], [28.32, -22.18], [28.25, -22.15], [28.0, -22.25], [27.75, -22.15], [27.5, -22.25], [26.97, -22.03], [26.75, -21.5], [26.85, -21.25], [26.75, -21.0], [26.85, -20.75], [26.75, -20.5], [26.88, -20.2], [26.47, -20.03], [26.25, -19.5], [26.35, -19.25], [26.25, -19.0], [26.47, -18.47]]]]}, "2013-03-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.47, -18.47], [27.0, -18.25], [27.53, -18.47], [27.68, -18.82], [28.03, -18.97], [28.18, -19.32], [28.25, -19.35], [28.5, -19.25], [28.75, -19.35], [29.0, -19.25], [29.25, -19.35], [29.32, -19.32], [29.47, -18.97], [30.0, -18.75], [30.53, -18.97], [30.75, -19.5], [30.53, -20.03], [30.18, -20.18], [30.15, -20.25], [30.18, -20.32], [30.53, -20.47], [30.75, -21.0], [30.65, -21.25], [30.75, -21.5], [30.53, -22.03], [30.0, -22.25], [29.75, -22.15], [29.68, -22.18], [29.53, -22.53], [29.0, -22.75], [28.47, -22.53], [28.32, -22.18], [28.25, -22.15], [28.0, -22.25], [27.75, -22.15], [27.5, -22.25], [26.97, -22.03], [26.75, -21.5], [26.85, -21.25], [26.75, -21.0], [26.85, -20.75], [26.75, -20.5], [26.88, -20.2], [26.47, -20.03], [26.25, -19.5], [26.35, -19.25], [26.25, -19.0], [26.47, -18.47]]]]}, "2013-03-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.47, -18.47], [27.0, -18.25], [27.53, -18.47], [27.68, -18.82], [28.03, -18.97], [28.25, -19.5], [28.03, -20.03], [27.5, -20.25], [27.25, -20.15], [27.0, -20.25], [26.47, -20.03], [26.25, -19.5], [26.35, -19.25], [26.25, -19.0], [26.47, -18.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.069217116890002}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.689748045739038}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.494395329052168, 26.795068664099347, 26.979944942880934, 26.92895853320084]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.580146243015975, 29.146759626125743, 29.489854629290562, 27.944737678110926]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.6281958549091975, 3.706146689217285, 3.8299841046638416, 2.804147421274706]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.838932628124553, 5.069217116890002, 5.01461040349011, 3.1971503048308705]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6933158466767444, 1.8454004866177498, 1.9105418612136935, 1.550294041751332]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1332154023711816, 2.3466448948281977, 2.334791822341422, 1.6247434745878775]}}