{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:13.131919", "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": "2018-Sep-26_to_2018-Sep-29_33.0_-14.5"}, "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": 2018090002748}, "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": "September 26 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 29 2018"}, "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": 104388.12402794187}, "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": ["Mozambique", "Zambia", "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": -14.5}, "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": 33.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "33.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 30.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 34.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -16.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -13.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.47, -13.47], [31.0, -13.25], [31.25, -13.35], [31.32, -13.32], [31.47, -12.97], [32.0, -12.75], [32.53, -12.97], [32.68, -13.32], [33.03, -13.47], [33.18, -13.82], [33.53, -13.97], [33.75, -14.5], [33.65, -14.75], [33.68, -14.82], [33.75, -14.85], [34.0, -14.75], [34.53, -14.97], [34.75, -15.5], [34.54, -16.0], [34.75, -16.5], [34.53, -17.03], [34.0, -17.25], [33.75, -17.15], [33.5, -17.25], [33.25, -17.15], [33.0, -17.25], [32.75, -17.15], [32.5, -17.25], [32.25, -17.15], [32.0, -17.25], [31.75, -17.15], [31.5, -17.25], [30.97, -17.03], [30.75, -16.5], [30.85, -16.25], [30.75, -16.0], [30.96, -15.5], [30.82, -15.18], [30.47, -15.03], [30.25, -14.5], [30.35, -14.25], [30.25, -14.0], [30.47, -13.47]]]]}, "2018-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.25, -13.5], [30.47, -12.97], [31.0, -12.75], [31.25, -12.85], [31.5, -12.75], [31.75, -12.85], [32.0, -12.75], [32.53, -12.97], [32.68, -13.32], [33.03, -13.47], [33.18, -13.82], [33.53, -13.97], [33.75, -14.5], [33.65, -14.75], [33.68, -14.82], [33.75, -14.85], [34.0, -14.75], [34.53, -14.97], [34.75, -15.5], [34.54, -16.0], [34.75, -16.5], [34.53, -17.03], [34.0, -17.25], [33.75, -17.15], [33.5, -17.25], [33.25, -17.15], [33.0, -17.25], [32.75, -17.15], [32.5, -17.25], [32.25, -17.15], [32.0, -17.25], [31.75, -17.15], [31.5, -17.25], [30.97, -17.03], [30.82, -16.68], [30.75, -16.65], [30.5, -16.75], [29.97, -16.53], [29.75, -16.0], [29.97, -15.47], [30.5, -15.25], [29.97, -15.03], [29.75, -14.5], [29.97, -13.97], [30.32, -13.82], [30.35, -13.75], [30.25, -13.5]], [[30.75, -15.35], [30.88, -15.3], [30.82, -15.18], [30.75, -15.15], [30.5, -15.25], [30.75, -15.35]]]]}, "2018-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.25, -13.5], [30.47, -12.97], [31.0, -12.75], [31.25, -12.85], [31.5, -12.75], [31.75, -12.85], [32.0, -12.75], [32.53, -12.97], [32.68, -13.32], [33.03, -13.47], [33.18, -13.82], [33.53, -13.97], [33.75, -14.5], [33.65, -14.75], [33.68, -14.82], [33.75, -14.85], [34.0, -14.75], [34.53, 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31.106461002966284, 29.87736583094278, 29.621748934574782]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.299239668152154, 33.94368231087964, 32.57470467937054, 32.08431374589537]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.0805707465413645, 4.224539200186129, 3.084212964207711, 2.9484612075195513]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.072952526698089, 5.682404042309429, 3.835715030302424, 3.897612522694544]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4404897944526263, 1.9232848295607783, 1.3338619858567697, 1.260408313577392]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.74825390327, 2.2295801882333333, 1.499324045937445, 1.4704854470552124]}}