{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:27.779741", "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-May-07_to_2012-May-13_20.5_-29.5"}, "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": 2012050002037}, "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": "May 07 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 13 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 103375.69418030843}, "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": []}, "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": -29.5}, "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": 20.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "20.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 19.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 24.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -32.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -28.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-05-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.97, -31.03], [18.75, -30.5], [18.97, -29.97], [19.5, -29.75], [19.75, -29.85], [20.0, -29.75], [20.53, -29.97], [20.75, -30.5], [20.53, -31.03], [20.0, -31.25], [19.75, -31.15], [19.5, -31.25], [18.97, -31.03]]]]}, "2012-05-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.97, -28.97], [19.32, -28.82], [19.47, -28.47], [20.0, -28.25], [20.53, -28.47], [20.68, -28.82], [21.03, -28.97], [21.18, -29.32], [21.25, -29.35], [21.5, -29.25], [22.03, -29.47], [22.18, -29.82], [22.53, -29.97], [22.68, -30.32], [23.03, -30.47], [23.25, -31.0], [23.47, -30.47], [24.0, -30.25], [24.53, -30.47], [24.68, -30.82], [25.03, -30.97], [25.25, -31.5], [25.15, -31.75], [25.25, -32.0], [25.03, -32.53], [24.5, -32.75], [24.25, -32.65], [24.0, -32.75], [23.75, -32.65], [23.5, -32.75], [23.25, -32.65], [23.18, -32.68], [23.03, -33.03], [22.5, -33.25], [21.97, -33.03], [21.82, -32.68], [21.75, -32.65], [21.5, -32.75], [21.25, -32.65], [21.0, -32.75], [20.47, -32.53], [20.32, -32.18], [20.25, -32.15], [20.0, -32.25], [19.47, -32.03], [19.25, -31.5], [19.35, -31.25], [19.32, -31.18], [18.97, -31.03], [18.75, -30.5], [18.96, -30.0], [18.75, -29.5], [18.97, -28.97]], [[23.15, -31.25], [23.18, -31.32], [23.25, -31.35], [23.32, -31.32], [23.35, -31.25], [23.25, -31.0], [23.15, -31.25]]]]}, "2012-05-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.97, -28.97], [19.32, -28.82], [19.47, -28.47], [20.0, -28.25], [20.53, -28.47], [20.68, -28.82], [21.03, -28.97], [21.18, -29.32], [21.25, -29.35], [21.5, -29.25], [22.03, -29.47], [22.18, -29.82], [22.53, -29.97], [22.68, -30.32], [23.03, -30.47], [23.25, -31.0], [23.47, -30.47], [24.0, -30.25], [24.53, -30.47], [24.68, -30.82], [25.03, -30.97], [25.25, -31.5], [25.15, -31.75], [25.25, -32.0], [25.03, -32.53], [24.5, -32.75], [24.25, -32.65], [24.0, -32.75], [23.75, -32.65], [23.5, -32.75], [23.25, -32.65], [23.18, -32.68], [23.03, -33.03], [22.5, -33.25], [21.97, -33.03], [21.82, -32.68], [21.75, -32.65], [21.5, -32.75], [21.25, -32.65], [21.0, -32.75], [20.47, -32.53], [20.32, -32.18], [20.25, -32.15], [20.0, -32.25], [19.47, -32.03], [19.25, -31.5], [19.35, -31.25], [19.32, -31.18], [18.97, -31.03], [18.75, -30.5], [18.96, -30.0], [18.75, -29.5], [18.97, -28.97]], [[23.15, -31.25], [23.18, -31.32], [23.25, -31.35], [23.32, -31.32], [23.35, -31.25], [23.25, -31.0], [23.15, -31.25]]]]}, "2012-05-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.75, -29.5], [18.97, -28.97], [19.32, -28.82], [19.47, -28.47], [20.0, -28.25], [20.53, -28.47], [20.68, -28.82], [21.03, -28.97], [21.18, -29.32], [21.25, -29.35], [21.5, -29.25], [22.03, -29.47], [22.18, -29.82], [22.53, -29.97], [22.68, -30.32], [23.03, -30.47], [23.25, -31.0], [23.47, -30.47], [24.0, -30.25], [24.53, -30.47], [24.68, -30.82], [25.03, -30.97], [25.25, -31.5], [25.15, -31.75], [25.25, -32.0], [25.03, -32.53], [24.5, -32.75], [24.25, -32.65], [24.0, -32.75], [23.75, -32.65], [23.5, -32.75], [23.25, -32.65], [23.18, -32.68], [23.03, -33.03], [22.5, -33.25], [21.97, -33.03], [21.82, -32.68], [21.75, -32.65], [21.5, -32.75], [21.25, -32.65], [21.0, -32.75], [20.47, -32.53], [20.32, -32.18], [20.25, -32.15], [20.0, -32.25], [19.47, -32.03], [19.25, -31.5], [19.35, -31.25], [19.25, -31.0], [19.46, -30.5], [19.32, -30.18], [18.97, -30.03], [18.75, -29.5]], [[23.15, -31.25], [23.18, -31.32], [23.25, -31.35], [23.32, -31.32], [23.35, -31.25], [23.25, -31.0], [23.15, -31.25]]]]}, "2012-05-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.35, -29.25], [19.25, -29.0], [19.47, -28.47], [20.0, -28.25], [20.25, -28.35], [20.5, -28.25], [21.03, -28.47], [21.25, -29.0], [21.15, -29.25], [21.18, -29.32], [21.53, -29.47], [21.68, -29.82], [21.75, -29.85], [22.0, -29.75], [22.53, -29.97], [22.75, -30.5], [22.65, -30.75], [22.75, -31.0], [22.53, -31.53], [22.0, -31.75], [21.47, -31.53], [21.32, -31.18], [21.25, -31.15], [21.0, -31.25], [20.75, -31.15], [20.5, -31.25], [19.97, -31.03], [19.82, -30.68], [19.47, -30.53], [19.25, -30.0], [19.35, -29.75], [19.25, -29.5], [19.35, -29.25]]]]}, "2012-05-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.47, -28.47], [20.0, -28.25], [20.25, -28.35], [20.5, -28.25], [21.03, -28.47], [21.25, -29.0], [21.15, -29.25], [21.25, -29.5], [21.15, -29.75], [21.25, -30.0], [21.03, -30.53], [20.5, -30.75], [19.97, -30.53], [19.82, -30.18], [19.47, -30.03], [19.25, -29.5], [19.35, -29.25], [19.25, -29.0], [19.47, -28.47]]]]}, "2012-05-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.25, -29.0], [19.47, -28.47], [20.0, -28.25], [20.25, -28.35], [20.5, -28.25], [21.03, -28.47], [21.25, -29.0], [21.15, -29.25], [21.25, -29.5], [21.03, -30.03], [20.5, -30.25], [19.97, -30.03], [19.82, -29.68], [19.47, -29.53], [19.25, -29.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.899636240267171}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.125373383477612}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.423883853074358, 20.126569071021663, 19.622365592974177, 18.794660619056117, 20.14151044526085, 20.684700577615615, 20.42824793352321]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.738097645389473, 23.525138642204297, 22.93542553812017, 21.666602614500277, 21.242911981969144, 21.461464059906007, 20.925646010690002]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.014212616732863, 5.875610936343774, 5.261024532575256, 4.553752130984672, 4.510322094332243, 4.582239945757249, 4.203106252463196]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.282787141561073, 7.899636240267171, 7.191837218713715, 5.450988219064868, 4.980189676095165, 5.222409222296164, 4.432242581808396]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3907294847069833, 1.7833057906973877, 1.6675084826931788, 1.5060532244083888, 1.513223303290095, 1.5429541327723169, 1.4507190298304378]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.460068978098633, 2.236320175288361, 2.2158009453688683, 1.7415239180417503, 1.655914774033524, 1.7200263415616568, 1.5742264939745685]}}