{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:37.587677", "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": "2014-Jan-14_to_2014-Jan-22_22.0_-29.0"}, "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": 2014010001994}, "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 14 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 22 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 9}, "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": 257212.3241875657}, "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", "Namibia", "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": []}, "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": -29.0}, "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": 22.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "22.0\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": 29.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -31.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -24.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-01-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.97, -29.03], [18.75, -28.5], [18.97, -27.97], [19.5, -27.75], [19.75, -27.85], [20.0, -27.75], [20.25, -27.85], [20.5, -27.75], [20.75, -27.85], [21.0, -27.75], [21.53, -27.97], [21.68, -28.32], [21.75, -28.35], [22.0, -28.25], [22.25, -28.35], [22.5, -28.25], [22.75, -28.35], [23.0, -28.25], [23.53, -28.47], [23.75, -29.0], [23.53, -29.53], [23.0, -29.75], [22.75, -29.65], [22.5, -29.75], [22.25, -29.65], [22.0, -29.75], [21.75, -29.65], [21.5, -29.75], [20.97, -29.53], [20.82, -29.18], [20.75, -29.15], [20.5, -29.25], [20.25, -29.15], [20.0, -29.25], [19.75, -29.15], [19.5, -29.25], [18.97, -29.03]]]]}, "2014-01-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.97, -29.03], [18.75, -28.5], [18.97, -27.97], [19.5, -27.75], [19.75, -27.85], [20.0, -27.75], [20.25, -27.85], [20.5, -27.75], [20.75, -27.85], [21.0, -27.75], [21.53, -27.97], [21.68, -28.32], [21.75, -28.35], [22.0, -28.25], [22.25, -28.35], [22.5, -28.25], [22.75, -28.35], [23.0, -28.25], [23.53, -28.47], [23.68, -28.82], [24.03, -28.97], [24.18, -29.32], [24.53, -29.47], [24.68, -29.82], [24.75, -29.85], [25.0, -29.75], [25.25, -29.85], [25.5, -29.75], [25.75, -29.85], [26.0, -29.75], [26.25, -29.85], [26.32, -29.82], [26.47, -29.47], [26.82, -29.32], [26.85, -29.25], [26.75, -29.0], [26.97, -28.47], [27.5, -28.25], [28.03, -28.47], [28.25, -29.0], [28.15, -29.25], [28.25, -29.5], [28.03, -30.03], [27.68, -30.18], [27.65, -30.25], [27.75, -30.5], [27.53, -31.03], [27.18, -31.18], [27.03, -31.53], [26.5, -31.75], [26.25, -31.65], [26.0, -31.75], [25.75, -31.65], [25.5, -31.75], [25.25, -31.65], [25.0, -31.75], [24.75, -31.65], [24.5, -31.75], [24.25, -31.65], [24.0, -31.75], [23.75, -31.65], [23.5, -31.75], [23.25, -31.65], [23.0, -31.75], [22.75, -31.65], [22.5, -31.75], [22.25, -31.65], [22.0, -31.75], [21.75, -31.65], [21.5, -31.75], [20.97, -31.53], [20.82, -31.18], [20.47, -31.03], [20.25, -30.5], [20.47, -29.97], [20.82, -29.82], [20.96, -29.5], [20.82, -29.18], [20.75, -29.15], [20.5, -29.25], [20.25, -29.15], [20.0, -29.25], [19.75, -29.15], [19.5, -29.25], [18.97, -29.03]]]]}, "2014-01-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.97, -29.03], [18.75, -28.5], [18.97, -27.97], [19.5, -27.75], [19.75, -27.85], [20.0, -27.75], [20.25, -27.85], [20.5, -27.75], [20.75, -27.85], [21.0, -27.75], [21.53, -27.97], [21.68, -28.32], [21.75, -28.35], [22.0, -28.25], [22.25, -28.35], [22.5, -28.25], [22.75, -28.35], [23.0, -28.25], [23.53, -28.47], [23.68, -28.82], [24.03, -28.97], [24.18, -29.32], [24.53, -29.47], [24.68, -29.82], [24.75, -29.85], [25.0, -29.75], [25.25, -29.85], [25.5, -29.75], [25.75, -29.85], [25.82, -29.82], [25.97, -29.47], [26.5, -29.25], [26.75, -29.35], [26.82, -29.32], [26.85, -29.25], [26.75, -29.0], [26.96, -28.5], [26.75, -28.0], [26.85, -27.75], [26.82, -27.68], [26.47, -27.53], [26.25, -27.0], [26.35, -26.75], [26.25, -26.5], [26.35, -26.25], [26.32, -26.18], [25.97, -26.03], [25.75, -25.5], [25.85, -25.25], [25.75, -25.0], [25.97, -24.47], [26.5, -24.25], [26.75, -24.35], [27.0, -24.25], [27.25, -24.35], [27.5, -24.25], [28.03, -24.47], [28.18, -24.82], [28.25, -24.85], [28.5, -24.75], [29.03, -24.97], [29.25, -25.5], [29.15, -25.75], [29.18, -25.82], [29.53, -25.97], [29.75, -26.5], [29.54, -27.0], [29.75, -27.5], [29.53, -28.03], [29.18, -28.18], [29.15, -28.25], [29.25, -28.5], [29.03, -29.03], [28.68, -29.18], [28.53, -29.53], [28.18, -29.68], [28.03, -30.03], [27.68, -30.18], [27.65, -30.25], [27.75, -30.5], [27.53, -31.03], [27.18, -31.18], [27.03, -31.53], [26.5, -31.75], [26.25, -31.65], [26.0, -31.75], [25.75, -31.65], [25.5, -31.75], [25.25, -31.65], [25.0, -31.75], [24.75, -31.65], [24.5, -31.75], [24.25, -31.65], [24.0, -31.75], [23.75, -31.65], [23.5, -31.75], [23.25, -31.65], [23.0, -31.75], [22.75, -31.65], [22.5, -31.75], [22.25, -31.65], [22.0, -31.75], [21.75, -31.65], [21.5, -31.75], [20.97, -31.53], [20.82, -31.18], [20.47, -31.03], [20.25, -30.5], [20.47, -29.97], [20.82, -29.82], [20.96, -29.5], [20.82, -29.18], [20.75, -29.15], [20.5, -29.25], [20.25, -29.15], [20.0, -29.25], [19.75, -29.15], [19.5, -29.25], [18.97, -29.03]]]]}, "2014-01-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.97, -29.03], [19.75, -28.5], [19.97, -27.97], [20.5, -27.75], [20.75, -27.85], [21.0, -27.75], [21.53, -27.97], [21.68, -28.32], [21.75, -28.35], [21.82, -28.32], [21.85, -28.25], [21.75, -28.0], [21.85, -27.75], [21.75, -27.5], [21.97, -26.97], [22.5, -26.75], [23.03, -26.97], [23.18, -27.32], [23.53, -27.47], [23.75, -28.0], [23.65, -28.25], [23.75, -28.5], [23.97, -27.97], [24.5, -27.75], [24.75, -27.85], [25.0, -27.75], [25.53, -27.97], [25.68, -28.32], [25.75, -28.35], [26.0, -28.25], [26.53, -28.47], [26.68, -28.82], [26.75, -28.85], [26.82, -28.82], [26.96, -28.5], [26.75, -28.0], [26.85, -27.75], [26.82, -27.68], [26.47, -27.53], [26.25, -27.0], [26.35, -26.75], [26.25, -26.5], [26.35, -26.25], [26.32, -26.18], [25.97, -26.03], [25.75, -25.5], [25.85, -25.25], [25.75, -25.0], [25.97, -24.47], [26.5, -24.25], [26.75, -24.35], [27.0, -24.25], [27.25, -24.35], [27.5, -24.25], [28.03, -24.47], [28.18, -24.82], [28.25, -24.85], [28.5, -24.75], [29.03, -24.97], [29.25, -25.5], [29.15, -25.75], [29.18, -25.82], [29.53, -25.97], [29.75, -26.5], [29.54, -27.0], [29.75, -27.5], [29.53, -28.03], [29.18, -28.18], [29.15, -28.25], [29.25, -28.5], [29.03, -29.03], [28.68, -29.18], [28.53, -29.53], [28.18, -29.68], [28.03, -30.03], [27.68, -30.18], [27.65, -30.25], [27.75, -30.5], [27.53, -31.03], [27.18, -31.18], [27.03, -31.53], [26.5, -31.75], [26.25, -31.65], [26.0, -31.75], [25.75, -31.65], [25.5, -31.75], [25.25, -31.65], [25.0, -31.75], [24.75, -31.65], [24.5, -31.75], [24.25, -31.65], [24.0, -31.75], [23.75, -31.65], [23.5, -31.75], [23.25, -31.65], [23.0, -31.75], [22.75, -31.65], [22.5, -31.75], [22.25, -31.65], [22.0, -31.75], [21.75, -31.65], [21.5, -31.75], [20.97, -31.53], [20.82, -31.18], [20.47, -31.03], [20.25, -30.5], [20.47, -29.97], [20.82, -29.82], [20.96, -29.5], [20.82, -29.18], [20.75, -29.15], [20.5, -29.25], [19.97, -29.03]], [[23.65, -28.75], [23.68, -28.82], [23.8, -28.87], [23.85, -28.75], [23.75, -28.5], [23.65, -28.75]], [[24.82, -29.68], [24.75, -29.65], [24.63, -29.7], [24.68, -29.82], [24.75, -29.85], [24.88, -29.8], [24.82, -29.68]]]]}, "2014-01-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[21.85, -27.75], [21.75, -27.5], [21.97, -26.97], [22.5, -26.75], [23.03, -26.97], [23.18, -27.32], [23.53, -27.47], [23.75, -28.0], [23.65, -28.25], [23.75, -28.5], [23.53, -29.03], [23.18, -29.18], [23.03, -29.53], [22.5, -29.75], [22.25, -29.65], [22.0, -29.75], [21.47, -29.53], [21.25, -29.0], [21.47, -28.47], [21.82, -28.32], [21.85, -28.25], [21.75, -28.0], [21.85, -27.75]]], [[[24.75, -27.85], [25.0, -27.75], [25.53, -27.97], [25.68, -28.32], [25.75, -28.35], [26.0, -28.25], [26.53, -28.47], [26.68, -28.82], [26.75, -28.85], [26.82, -28.82], [26.96, -28.5], [26.75, -28.0], [26.85, -27.75], [26.82, -27.68], [26.47, -27.53], [26.25, -27.0], [26.35, -26.75], [26.25, -26.5], [26.35, -26.25], [26.32, -26.18], [25.97, -26.03], [25.75, -25.5], [25.85, -25.25], [25.75, -25.0], [25.97, -24.47], [26.5, -24.25], [26.75, -24.35], [27.0, -24.25], [27.25, -24.35], [27.5, -24.25], [28.03, -24.47], [28.18, -24.82], [28.25, -24.85], [28.5, -24.75], [29.03, -24.97], [29.25, -25.5], [29.15, -25.75], [29.18, -25.82], [29.53, -25.97], [29.75, -26.5], [29.54, -27.0], [29.75, -27.5], [29.53, -28.03], [29.18, -28.18], [29.15, -28.25], [29.25, -28.5], [29.03, -29.03], [28.68, -29.18], [28.53, -29.53], [28.18, -29.68], [28.03, -30.03], [27.68, -30.18], [27.53, -30.53], [27.0, -30.75], [26.75, -30.65], [26.5, -30.75], [25.97, -30.53], [25.82, -30.18], [25.75, -30.15], [25.5, -30.25], [24.97, -30.03], [24.82, -29.68], [24.75, -29.65], [24.5, -29.75], [23.97, -29.53], [23.75, -29.0], [23.85, -28.75], [23.75, -28.5], [23.97, -27.97], [24.5, -27.75], [24.75, -27.85]]]]}, "2014-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[21.85, -27.75], [21.75, -27.5], [21.97, -26.97], [22.5, -26.75], [23.03, -26.97], [23.18, -27.32], [23.53, -27.47], [23.68, -27.82], [23.75, -27.85], [24.0, -27.75], [24.25, -27.85], [24.5, -27.75], [24.75, -27.85], [25.0, -27.75], [25.53, -27.97], [25.68, -28.32], [25.75, -28.35], [26.0, -28.25], [26.53, -28.47], [26.68, -28.82], [26.75, -28.85], [27.0, -28.75], [27.53, -28.97], [27.75, -29.5], [27.53, -30.03], [27.0, -30.25], [26.75, -30.15], [26.5, -30.25], [26.25, -30.15], [26.0, -30.25], [25.75, -30.15], [25.5, -30.25], [24.97, -30.03], [24.82, -29.68], [24.75, -29.65], [24.68, -29.68], [24.53, -30.03], [24.0, -30.25], [23.75, -30.15], [23.5, -30.25], [22.97, -30.03], [22.82, -29.68], [22.47, -29.53], [22.32, -29.18], [21.97, -29.03], [21.75, -28.5], [21.85, -28.25], [21.75, -28.0], [21.85, -27.75]]]]}, "2014-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[21.32, -28.82], [21.47, -28.47], [22.0, -28.25], [22.25, -28.35], [22.32, -28.32], [22.47, -27.97], [23.0, -27.75], [23.25, -27.85], [23.5, -27.75], [23.75, -27.85], [24.0, -27.75], [24.25, -27.85], [24.5, -27.75], [24.75, -27.85], [25.0, -27.75], [25.53, -27.97], [25.68, -28.32], [25.75, -28.35], [26.0, -28.25], [26.53, -28.47], [26.68, -28.82], [26.75, -28.85], [27.0, -28.75], [27.53, -28.97], [27.75, -29.5], [27.53, -30.03], [27.0, -30.25], [26.75, -30.15], [26.5, -30.25], [26.25, -30.15], [26.0, -30.25], [25.75, -30.15], [25.5, -30.25], [24.97, -30.03], [24.82, -29.68], [24.75, -29.65], [24.68, -29.68], [24.53, -30.03], [24.0, -30.25], [23.75, -30.15], [23.5, -30.25], [23.25, -30.15], [23.0, -30.25], [22.75, -30.15], [22.5, -30.25], [22.25, -30.15], [22.0, -30.25], [21.75, -30.15], [21.68, -30.18], [21.53, -30.53], [21.0, -30.75], [20.47, -30.53], [20.25, -30.0], [20.47, -29.47], [20.82, -29.32], [20.97, -28.97], [21.32, -28.82]]]]}, "2014-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[21.32, -28.82], [21.47, -28.47], [22.0, -28.25], [22.25, -28.35], [22.32, -28.32], [22.47, -27.97], [23.0, -27.75], [23.25, -27.85], [23.5, -27.75], [23.75, -27.85], [24.0, -27.75], [24.25, -27.85], [24.5, -27.75], [24.75, -27.85], [25.0, -27.75], [25.53, -27.97], [25.75, -28.5], [25.65, -28.75], [25.75, -29.0], [25.53, -29.53], [25.0, -29.75], [24.75, -29.65], [24.68, -29.68], [24.53, -30.03], [24.0, -30.25], [23.75, -30.15], [23.5, -30.25], [23.25, -30.15], [23.0, -30.25], [22.75, -30.15], [22.5, -30.25], [22.25, -30.15], [22.0, -30.25], [21.75, -30.15], [21.68, -30.18], [21.53, -30.53], [21.0, -30.75], [20.47, -30.53], [20.25, -30.0], [20.47, -29.47], [20.82, -29.32], [20.97, -28.97], [21.32, -28.82]]]]}, "2014-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[21.32, -28.82], [21.47, -28.47], [22.0, -28.25], [22.25, -28.35], [22.32, -28.32], [22.47, -27.97], [23.0, -27.75], [23.53, -27.97], [23.68, -28.32], [24.03, -28.47], [24.25, -29.0], [24.15, -29.25], [24.25, -29.5], [24.03, -30.03], [23.5, -30.25], [23.25, -30.15], [23.0, -30.25], [22.75, -30.15], [22.5, -30.25], [22.25, -30.15], [22.0, -30.25], [21.75, -30.15], [21.68, -30.18], [21.53, -30.53], [21.0, -30.75], [20.47, -30.53], [20.25, -30.0], [20.47, -29.47], [20.82, -29.32], [20.97, -28.97], [21.32, -28.82]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.411127492529772}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.939476478212112}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.24152429137433, 29.628687258548553, 27.870881381247386, 28.233451897744317, 26.276224636187806, 28.16675633939866, 28.692176076242276, 29.29279402085558, 30.459758675961382]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [34.13209243435517, 33.11320148521747, 33.10410611864552, 32.861049938098574, 30.251799161669226, 29.877140023261575, 31.323163379491575, 31.309660258349936, 32.96634629725895]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.453834621470172, 4.36268690952301, 3.929242436298973, 4.317600816483624, 3.461555892002469, 3.3905234089442744, 3.440427466501344, 3.4655876517609663, 4.081869757352996]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.912601560931478, 5.3588692650378675, 5.176585822051436, 5.411127492529772, 4.733040412052787, 4.208468401961568, 4.074463688747983, 4.090306580946958, 5.25288049761383]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4378265818463971, 1.4249039602372149, 1.499217676889044, 1.72196905453651, 1.5735070671895184, 1.4594900436786902, 1.495469687526351, 1.5323372263806234, 1.809006595258557]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.561770309509328, 1.712202140732749, 2.1335375014255695, 2.5077835674490805, 2.310180150332328, 1.8147877479340462, 1.7867510270496614, 1.874754486398943, 2.108362361232182]}}