{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:24.032588", "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": "2013-Dec-21_to_2013-Dec-24_29.0_-5.5"}, "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": 2013120002278}, "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": "December 21 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 24 2013"}, "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": 55318.071508222136}, "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": ["Congo DRC"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Eastern-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": -5.5}, "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": 29.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "29.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 26.75}, "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": -8.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -4.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-12-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.47, -4.47], [26.82, -4.32], [26.97, -3.97], [27.5, -3.75], [28.03, -3.97], [28.18, -4.32], [28.53, -4.47], [28.68, -4.82], [28.75, -4.85], [29.0, -4.75], [29.53, -4.97], [29.75, -5.5], [29.65, -5.75], [29.75, -6.0], [29.65, -6.25], [29.75, -6.5], [29.65, -6.75], [29.75, -7.0], [29.53, -7.53], [29.0, -7.75], [28.7, -7.62], [28.65, -7.75], [28.75, -8.0], [28.53, -8.53], [28.0, -8.75], [27.47, -8.53], [27.32, -8.18], [26.97, -8.03], [26.75, -7.5], [26.85, -7.25], [26.75, -7.0], [26.85, -6.75], [26.75, -6.5], [26.85, -6.25], [26.82, -6.18], [26.47, -6.03], [26.25, -5.5], [26.35, -5.25], [26.25, -5.0], [26.47, -4.47]], [[28.15, -6.75], [28.18, -6.82], [28.3, -6.87], [28.35, -6.75], [28.32, -6.68], [28.2, -6.62], [28.15, -6.75]]]]}, "2013-12-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.47, -4.47], [26.82, -4.32], [26.97, -3.97], [27.5, -3.75], [28.03, -3.97], [28.18, -4.32], [28.5, -4.46], [29.0, -4.25], [29.53, -4.47], [29.75, -5.0], [29.65, -5.25], [29.75, -5.5], [29.65, -5.75], [29.75, -6.0], [29.65, -6.25], [29.75, -6.5], [29.65, -6.75], [29.75, -7.0], [29.53, -7.53], [29.0, -7.75], [28.7, -7.62], [28.65, -7.75], [28.75, -8.0], [28.53, -8.53], [28.0, -8.75], [27.47, -8.53], [27.32, -8.18], [26.97, -8.03], [26.75, -7.5], [26.85, -7.25], [26.75, -7.0], [26.85, -6.75], [26.75, -6.5], [26.85, -6.25], [26.82, -6.18], [26.47, -6.03], [26.25, -5.5], [26.35, -5.25], [26.25, -5.0], [26.47, -4.47]], [[28.15, -6.75], [28.18, -6.82], [28.3, -6.87], [28.35, -6.75], [28.32, -6.68], [28.2, -6.62], [28.15, -6.75]]]]}, "2013-12-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.47, -4.47], [26.82, -4.32], [26.97, -3.97], [27.5, -3.75], [28.03, -3.97], [28.18, -4.32], [28.5, -4.46], [29.0, -4.25], [29.53, -4.47], [29.75, -5.0], [29.65, -5.25], [29.75, -5.5], [29.65, -5.75], [29.75, -6.0], [29.65, -6.25], [29.75, -6.5], [29.65, -6.75], [29.75, -7.0], [29.53, -7.53], [29.0, -7.75], [28.7, -7.62], [28.65, -7.75], [28.75, -8.0], [28.53, -8.53], [28.0, -8.75], [27.47, -8.53], [27.32, -8.18], [26.97, -8.03], [26.75, -7.5], [26.85, -7.25], [26.75, -7.0], [26.85, -6.75], [26.75, -6.5], [26.85, -6.25], [26.82, -6.18], [26.47, -6.03], [26.25, -5.5], [26.35, -5.25], [26.25, -5.0], [26.47, -4.47]], [[28.15, -6.75], [28.18, -6.82], [28.3, -6.87], [28.35, -6.75], [28.32, -6.68], [28.2, -6.62], [28.15, -6.75]]]]}, "2013-12-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.0, -4.25], [29.53, -4.47], [29.75, -5.0], [29.53, -5.53], [29.0, -5.75], [28.47, -5.53], [28.25, -5.0], [28.47, -4.47], [29.0, -4.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.4644746370373696}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.753581638336082}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.87078208127832, 23.986998005390546, 24.461687354908406, 20.901486680988967]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.261843877064678, 25.660586812628992, 26.123770436790096, 20.901486680988967]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3939776529249155, 1.7134873945117528, 2.146223415009132, 1.520993799048938]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6113607765329903, 2.3207482395534953, 2.4644746370373696, 1.520993799048938]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3971681460146765, 1.7811527395066231, 2.2140622879889316, 1.933287169549727]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.621896871651876, 2.2881684903023767, 2.6282171450052028, 1.933287169549727]}}