{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:36:30.786639", "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": "2023-Sep-06_to_2023-Sep-09_27.0_-20.5"}, "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": 2023090000981}, "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 06 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 09 2023"}, "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": 105326.64919456243}, "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", "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": -20.5}, "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": 27.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "27.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 24.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 29.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -20.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -17.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-09-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.25, -17.5], [24.47, -16.97], [25.0, -16.75], [25.25, -16.85], [25.5, -16.75], [25.75, -16.85], [26.0, -16.75], [26.25, -16.85], [26.5, -16.75], [26.75, -16.85], [27.0, -16.75], [27.53, -16.97], [27.68, -17.32], [27.75, -17.35], [28.0, -17.25], [28.25, -17.35], [28.5, -17.25], [29.03, -17.47], [29.18, -17.82], [29.53, -17.97], [29.75, -18.5], [29.65, -18.75], [29.75, -19.0], [29.65, -19.25], [29.75, -19.5], [29.53, -20.03], [29.0, -20.25], [28.75, -20.15], [28.68, -20.18], [28.53, -20.53], [28.0, -20.75], [27.75, -20.65], [27.68, -20.68], [27.53, -21.03], [27.0, -21.25], [26.47, -21.03], [26.32, -20.68], [25.97, -20.53], [25.82, -20.18], [25.47, -20.03], [25.25, -19.5], [25.35, -19.25], [25.32, -19.18], [24.97, -19.03], [24.75, -18.5], [24.85, -18.25], [24.82, -18.18], [24.47, -18.03], [24.25, -17.5]]]]}, "2023-09-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.25, -17.5], [24.47, -16.97], [25.0, -16.75], [25.25, -16.85], [25.5, -16.75], [25.75, -16.85], [26.0, -16.75], [26.25, -16.85], [26.5, -16.75], [26.75, -16.85], [27.0, -16.75], [27.53, -16.97], [27.68, -17.32], [27.75, -17.35], [28.0, -17.25], [28.25, -17.35], [28.5, -17.25], [29.03, -17.47], [29.18, -17.82], [29.53, -17.97], [29.75, -18.5], [29.65, -18.75], [29.75, -19.0], [29.65, -19.25], [29.75, -19.5], [29.53, -20.03], [29.0, -20.25], [28.75, -20.15], [28.68, -20.18], [28.53, -20.53], [28.0, -20.75], [27.75, -20.65], [27.68, -20.68], [27.53, -21.03], [27.0, -21.25], [26.47, -21.03], [26.32, -20.68], [26.25, -20.65], [26.0, -20.75], [25.47, -20.53], [25.25, -20.0], [25.35, -19.75], [25.25, -19.5], [25.35, -19.25], [25.32, -19.18], [24.97, -19.03], [24.75, -18.5], [24.85, -18.25], [24.82, -18.18], [24.47, -18.03], [24.25, -17.5]]]]}, "2023-09-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.25, -17.5], [24.47, -16.97], [25.0, -16.75], [25.25, -16.85], [25.5, -16.75], [25.75, -16.85], [26.0, -16.75], [26.25, -16.85], [26.5, -16.75], [26.75, -16.85], [27.0, -16.75], [27.53, -16.97], [27.68, -17.32], [27.75, -17.35], [28.0, -17.25], [28.25, -17.35], [28.5, -17.25], [29.03, -17.47], [29.18, -17.82], [29.53, -17.97], [29.75, -18.5], [29.65, -18.75], [29.75, -19.0], [29.65, -19.25], [29.75, -19.5], [29.53, -20.03], [29.0, -20.25], [28.75, -20.15], [28.68, -20.18], [28.53, -20.53], [28.0, -20.75], [27.75, -20.65], [27.68, -20.68], [27.53, -21.03], [27.0, -21.25], [26.47, -21.03], [26.32, -20.68], [26.25, -20.65], [26.0, -20.75], [25.47, -20.53], [25.25, -20.0], [25.35, -19.75], [25.25, -19.5], [25.35, -19.25], [25.32, -19.18], [24.97, -19.03], [24.75, -18.5], [24.85, -18.25], [24.82, -18.18], [24.47, -18.03], [24.25, -17.5]]]]}, "2023-09-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.47, -20.53], [25.25, -20.0], [25.47, -19.47], [26.0, -19.25], [26.25, -19.35], [26.5, -19.25], [27.03, -19.47], [27.18, -19.82], [27.53, -19.97], [27.75, -20.5], [27.53, -21.03], [27.0, -21.25], [26.47, -21.03], [26.32, -20.68], [26.25, -20.65], [26.0, -20.75], [25.47, -20.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.066932831423173}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.1189556658912188}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.650062692942015, 25.835359614603874, 25.82192197594952, 26.525739403725595]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.837976284241563, 27.43195185282343, 27.27401282926388, 26.693917497281916]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.1121836958077878, 3.165414478627224, 3.068239769250815, 3.249046990384026]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.066932831423173, 3.4714439735463998, 3.9128004758591715, 3.7202446301514556]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5469545041615735, 1.5516123532261605, 1.4488163517092856, 1.3748970783431667]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8510704526099142, 2.017867124744636, 1.6922717261021112, 1.4685337562162712]}}