{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:33.076601", "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-Jan-26_to_2012-Jan-30_21.0_-36.0"}, "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": 2012010002599}, "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 26 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 30 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": 63220.83831606587}, "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": ["South Africa"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": ["Indian Ocean", "South Atlantic Ocean"]}, "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": -36.0}, "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": 21.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "21.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 17.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 22.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -36.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -33.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[21.0, -35.25], [21.53, -35.47], [21.75, -36.0], [21.53, -36.53], [21.0, -36.75], [20.47, -36.53], [20.25, -36.0], [20.47, -35.47], [21.0, -35.25]]]]}, "2012-01-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.47, -33.47], [18.0, -33.25], [18.25, -33.35], [18.5, -33.25], [19.03, -33.47], [19.18, -33.82], [19.53, -33.97], [19.68, -34.32], [19.75, -34.35], [20.0, -34.25], [20.25, -34.35], [20.5, -34.25], [20.75, -34.35], [20.82, -34.32], [20.97, -33.97], [21.5, -33.75], [22.03, -33.97], [22.18, -34.32], [22.53, -34.47], [22.75, -35.0], [22.65, -35.25], [22.75, -35.5], [22.65, -35.75], [22.75, -36.0], [22.53, -36.53], [22.0, -36.75], [21.75, -36.65], [21.5, -36.75], [21.25, -36.65], [21.0, -36.75], [20.75, -36.65], [20.5, -36.75], [19.97, -36.53], [19.82, -36.18], [19.75, -36.15], [19.5, -36.25], [18.97, -36.03], [18.82, -35.68], [18.75, -35.65], [18.5, -35.75], [17.97, -35.53], [17.82, -35.18], [17.47, -35.03], [17.25, -34.5], [17.35, -34.25], [17.25, -34.0], [17.47, -33.47]]]]}, "2012-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.47, -33.47], [18.0, -33.25], [18.25, -33.35], [18.5, -33.25], [19.03, -33.47], [19.18, -33.82], [19.53, -33.97], [19.68, -34.32], [19.75, -34.35], [20.0, -34.25], [20.25, -34.35], [20.5, -34.25], [20.75, -34.35], [20.82, -34.32], [20.97, -33.97], [21.5, -33.75], [21.75, -33.85], [22.0, -33.75], [22.53, -33.97], [22.75, -34.5], [22.65, -34.75], [22.75, -35.0], [22.65, -35.25], [22.75, -35.5], [22.65, -35.75], [22.75, -36.0], [22.53, -36.53], [22.0, -36.75], [21.75, -36.65], [21.5, -36.75], [21.25, -36.65], [21.0, -36.75], [20.75, -36.65], [20.5, -36.75], [19.97, -36.53], [19.82, -36.18], [19.75, -36.15], [19.5, -36.25], [18.97, -36.03], [18.82, -35.68], [18.75, -35.65], [18.5, -35.75], [17.97, -35.53], [17.82, -35.18], [17.47, -35.03], [17.25, -34.5], [17.35, -34.25], [17.25, -34.0], [17.47, -33.47]]]]}, "2012-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.47, -33.47], [18.0, -33.25], [18.25, -33.35], [18.5, -33.25], 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{"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.8768519461171422}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.7883365457749862}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.873056249668196, 22.01414495843818, 22.333329454706416, 22.354863953397626, 22.218545556238325]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.873056249668196, 22.762916533199302, 23.059069299178987, 23.39187397420369, 22.218545556238325]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4807798837982773, 1.6077408606709558, 1.884624302395473, 1.897448393305724, 1.2951995464678134]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.4807798837982773, 2.0231434517537537, 2.8768519461171422, 2.492766021024863, 1.2951995464678134]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2269691511185292, 1.5475991695166247, 1.8305197145363419, 1.8286174493331406, 1.4117679435882173]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2269691511185292, 1.7773865214534479, 2.2357315736615626, 2.211128237228147, 1.4117679435882173]}}