{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:07.949073", "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": "2010-Feb-06_to_2010-Feb-11_25.5_-34.5"}, "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": 2010020001247}, "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": "February 06 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 11 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 178026.84992792294}, "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": ["Lesotho", "South Africa"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa", "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"]}, "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": -34.5}, "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": 25.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "25.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 23.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 32.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -35.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -28.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.75, -32.0], [26.97, -31.47], [27.5, -31.25], [27.75, -31.35], [27.82, -31.32], [27.85, -31.25], [27.75, -31.0], [27.97, -30.47], [28.32, -30.32], [28.35, -30.25], [28.25, -30.0], [28.47, -29.47], [29.0, -29.25], [29.53, -29.47], [29.75, -30.0], [29.96, -29.5], [29.75, -29.0], [29.97, -28.47], [30.32, -28.32], [30.47, -27.97], [31.0, -27.75], [31.25, -27.85], [31.5, -27.75], [32.03, -27.97], [32.25, -28.5], [32.15, -28.75], [32.25, -29.0], [32.13, -29.3], [32.53, -29.47], [32.75, -30.0], [32.53, -30.53], [32.18, -30.68], [32.03, -31.03], [31.68, -31.18], [31.65, -31.25], [31.75, -31.5], [31.53, -32.03], [31.18, -32.18], [31.15, -32.25], [31.25, -32.5], [31.03, -33.03], [30.68, -33.18], [30.53, -33.53], [30.18, -33.68], [30.03, -34.03], [29.5, -34.25], [28.97, -34.03], [28.82, -33.68], [28.75, -33.65], [28.5, -33.75], [27.97, -33.53], [27.75, -33.0], [27.88, -32.7], [27.75, -32.65], [27.5, -32.75], [26.97, -32.53], [26.75, -32.0]], [[29.65, -30.25], [29.68, -30.32], [29.75, -30.35], [29.88, -30.3], [29.75, -30.0], [29.65, -30.25]]], [[[26.47, -31.03], [26.25, -30.5], [26.47, -29.97], [27.0, -29.75], [27.53, -29.97], [27.75, -30.5], [27.53, -31.03], [27.0, -31.25], [26.47, -31.03]]]]}, "2010-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.97, -35.03], [24.75, -34.5], [24.97, -33.97], [25.5, -33.75], [26.03, -33.97], [26.25, -34.5], [26.03, -35.03], [25.5, -35.25], [24.97, -35.03]]], [[[26.25, -30.5], [26.47, -29.97], [27.0, -29.75], [27.25, -29.85], [27.32, -29.82], [27.47, -29.47], [28.0, -29.25], [28.25, -29.35], [28.5, -29.25], [28.75, -29.35], [29.0, -29.25], [29.53, -29.47], [29.75, -30.0], [29.96, -29.5], [29.75, -29.0], [29.97, -28.47], [30.32, -28.32], [30.47, -27.97], [31.0, -27.75], [31.25, -27.85], [31.5, -27.75], [32.03, -27.97], [32.25, -28.5], [32.15, -28.75], [32.25, -29.0], [32.13, -29.3], [32.53, -29.47], [32.75, -30.0], [32.53, -30.53], [32.18, -30.68], [32.03, -31.03], [31.68, -31.18], [31.65, -31.25], [31.75, -31.5], [31.53, -32.03], [31.18, -32.18], [31.15, -32.25], [31.25, -32.5], [31.03, -33.03], [30.68, -33.18], [30.53, -33.53], [30.18, -33.68], [30.03, -34.03], [29.5, -34.25], [28.97, -34.03], [28.82, -33.68], [28.75, -33.65], [28.5, -33.75], [27.97, -33.53], [27.75, -33.0], [27.88, -32.7], [27.75, -32.65], [27.5, -32.75], [26.97, -32.53], [26.75, -32.0], [26.97, -31.47], [27.5, -31.25], [27.25, -31.15], [27.0, -31.25], [26.47, -31.03], [26.25, -30.5]], [[29.65, -30.25], [29.68, -30.32], [29.75, -30.35], [29.88, -30.3], [29.75, -30.0], [29.65, -30.25]], [[27.75, -31.35], [27.82, -31.32], [27.85, -31.25], [27.82, -31.18], [27.75, -31.15], [27.5, -31.25], [27.75, -31.35]]]]}, "2010-02-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.25, -34.5], [23.47, -33.97], [24.0, -33.75], [24.25, -33.85], [24.5, -33.75], [24.75, -33.85], [25.0, -33.75], [25.25, -33.85], [25.32, -33.82], [25.47, -33.47], [26.0, -33.25], [26.25, -33.35], [26.5, -33.25], [26.75, -33.35], [26.82, -33.32], [26.97, -32.97], [27.32, -32.82], [27.38, -32.7], [26.97, -32.53], [26.75, -32.0], [26.97, -31.47], [27.5, -31.25], [27.25, -31.15], [27.0, -31.25], [26.47, -31.03], [26.25, -30.5], [26.47, -29.97], [27.0, -29.75], [27.25, -29.85], [27.32, -29.82], [27.47, -29.47], [28.0, -29.25], [28.25, -29.35], [28.5, -29.25], [28.75, -29.35], [29.0, -29.25], [29.53, -29.47], [29.75, -30.0], [29.96, -29.5], [29.75, -29.0], [29.97, -28.47], [30.32, -28.32], [30.47, -27.97], [31.0, -27.75], [31.25, -27.85], [31.5, -27.75], [32.03, -27.97], [32.25, -28.5], [32.15, -28.75], [32.25, -29.0], [32.13, -29.3], [32.53, -29.47], [32.75, -30.0], [32.53, -30.53], [32.18, -30.68], [32.03, -31.03], [31.68, -31.18], [31.65, -31.25], [31.75, -31.5], [31.53, -32.03], [31.18, -32.18], [31.15, -32.25], [31.25, -32.5], [31.03, -33.03], [30.68, -33.18], [30.53, -33.53], [30.18, -33.68], [30.03, -34.03], [29.68, -34.18], [29.53, -34.53], [29.0, -34.75], [28.75, -34.65], [28.5, -34.75], [28.25, -34.65], [28.0, -34.75], [27.75, -34.65], [27.5, -34.75], [27.25, -34.65], [27.18, -34.68], [27.03, -35.03], [26.5, -35.25], [26.25, -35.15], [26.18, -35.18], [26.03, -35.53], [25.5, -35.75], [25.25, -35.65], [25.0, -35.75], [24.75, -35.65], [24.5, -35.75], [23.97, -35.53], [23.82, -35.18], [23.47, -35.03], [23.25, -34.5]], [[27.75, -31.35], [27.82, -31.32], [27.85, -31.25], [27.82, -31.18], [27.75, -31.15], [27.5, -31.25], [27.75, -31.35]], [[29.65, -30.25], [29.68, -30.32], [29.75, -30.35], [29.88, -30.3], [29.75, -30.0], [29.65, -30.25]]]]}, "2010-02-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.25, -34.5], [23.47, -33.97], [24.0, -33.75], [24.25, -33.85], [24.5, -33.75], [24.75, -33.85], [25.0, -33.75], [25.25, -33.85], [25.32, -33.82], [25.47, -33.47], [26.0, -33.25], [26.25, -33.35], [26.5, -33.25], [26.75, -33.35], [26.82, -33.32], [26.97, -32.97], [27.32, -32.82], [27.38, -32.7], [26.97, -32.53], [26.75, -32.0], [26.97, -31.47], [27.5, -31.25], [27.25, -31.15], [27.0, -31.25], [26.47, -31.03], [26.25, -30.5], [26.47, -29.97], [27.0, -29.75], [27.25, -29.85], [27.32, -29.82], [27.47, -29.47], [28.0, -29.25], [28.25, -29.35], [28.5, -29.25], [28.75, -29.35], [29.0, -29.25], [29.53, -29.47], [29.75, -30.0], [29.65, -30.25], [29.68, -30.32], [30.03, -30.47], [30.18, -30.82], [30.3, -30.87], [30.47, -30.47], [31.0, -30.25], [31.53, -30.47], [31.75, -31.0], [31.53, -31.53], [31.0, -31.75], [30.7, -31.62], [30.65, -31.75], [30.75, -32.0], [30.53, -32.53], [30.18, -32.68], [30.15, -32.75], [30.25, -33.0], [30.15, -33.25], [30.25, -33.5], [30.03, -34.03], [29.68, -34.18], [29.53, -34.53], [29.0, -34.75], [28.75, -34.65], [28.5, -34.75], [28.25, -34.65], [28.0, -34.75], [27.75, -34.65], [27.5, -34.75], [27.25, -34.65], [27.18, -34.68], [27.03, -35.03], [26.5, -35.25], [26.25, -35.15], [26.18, -35.18], [26.03, -35.53], [25.5, -35.75], [25.25, -35.65], [25.0, -35.75], [24.75, -35.65], [24.5, -35.75], [23.97, -35.53], [23.82, -35.18], [23.47, -35.03], [23.25, -34.5]], [[27.75, -31.35], [27.82, -31.32], [27.85, -31.25], [27.82, -31.18], [27.75, -31.15], [27.5, -31.25], [27.75, -31.35]]]]}, "2010-02-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.25, -34.5], [23.47, -33.97], [24.0, -33.75], [24.25, -33.85], [24.5, -33.75], [24.75, -33.85], [25.0, -33.75], [25.25, -33.85], [25.32, -33.82], [25.47, -33.47], [26.0, -33.25], [26.25, -33.35], [26.5, -33.25], [26.75, -33.35], [26.82, -33.32], [26.97, -32.97], [27.32, -32.82], [27.38, -32.7], [26.97, -32.53], [26.75, -32.0], [26.97, -31.47], [27.5, -31.25], [27.75, -31.35], [27.82, -31.32], [27.85, -31.25], [27.75, -31.0], [27.85, -30.75], [27.75, -30.5], [27.85, -30.25], [27.75, -30.0], [27.97, -29.47], [28.5, -29.25], [28.75, -29.35], [29.0, -29.25], [29.53, -29.47], [29.75, -30.0], [29.65, -30.25], [29.68, -30.32], [30.03, -30.47], [30.18, -30.82], [30.3, -30.87], [30.47, -30.47], [31.0, -30.25], [31.53, -30.47], [31.75, -31.0], [31.53, -31.53], [31.0, -31.75], [30.7, -31.62], [30.65, -31.75], [30.75, -32.0], [30.53, -32.53], [30.18, -32.68], [30.15, -32.75], [30.25, -33.0], [30.15, -33.25], [30.25, -33.5], [30.03, -34.03], [29.68, -34.18], [29.53, -34.53], [29.0, -34.75], [28.75, -34.65], [28.5, -34.75], [28.25, -34.65], [28.0, -34.75], [27.75, -34.65], [27.5, -34.75], [27.25, -34.65], [27.18, -34.68], [27.03, -35.03], [26.5, -35.25], [26.25, -35.15], [26.18, -35.18], [26.03, -35.53], [25.5, -35.75], [25.25, -35.65], [25.0, -35.75], [24.75, -35.65], [24.5, -35.75], [23.97, -35.53], [23.82, -35.18], [23.47, -35.03], [23.25, -34.5]]]]}, "2010-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.97, -35.03], [23.75, -34.5], [23.97, -33.97], [24.5, -33.75], [24.75, -33.85], [25.0, -33.75], [25.25, -33.85], [25.5, -33.75], [25.75, -33.85], [26.0, -33.75], [26.53, -33.97], [26.75, -34.5], [26.53, -35.03], [26.0, -35.25], [25.75, -35.15], [25.5, -35.25], [25.25, -35.15], [25.0, -35.25], [24.75, -35.15], [24.5, -35.25], [23.97, -35.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.8687559323552705}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.0064417090477416}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.09824163498621, 25.695876647240993, 25.069802733304357, 25.064951656886592, 24.88782513259008, 23.19848761329456]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.14778156780443, 30.146530109836192, 28.55898615146276, 27.100064262065075, 26.717813378157928, 23.827640725553067]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.338947438823745, 3.508422687207553, 2.66893710613175, 3.1362720889554625, 2.68679563503953, 1.4906098372857457]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.626268329711593, 6.8687559323552705, 5.508997309228903, 6.269840744722217, 5.451660903216862, 1.5934836441793436]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7342638592515747, 1.840842357308517, 1.642594322771853, 1.9845748273031463, 1.6448277210572322, 1.4484664859460512]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2744128715011116, 2.438110646754357, 2.3576462430850675, 3.094366992775954, 2.166020447061822, 1.6573832480950434]}}