{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:31:26.005046", "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": "2022-Jun-03_to_2022-Jun-09_44.5_-20.5"}, "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": 2022060001509}, "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": "June 03 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 09 2022"}, "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": 66508.41498122958}, "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": ["Madagascar"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Madagascar"]}, "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": -20.5}, "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": 44.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "44.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 43.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 45.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -17.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.75, -20.0], [43.97, -19.47], [44.5, -19.25], [45.03, -19.47], [45.25, -20.0], [45.15, -20.25], [45.25, -20.5], [45.03, -21.03], [44.68, -21.18], [44.53, -21.53], [44.0, -21.75], [43.47, -21.53], [43.25, -21.0], [43.47, -20.47], [43.82, -20.32], [43.85, -20.25], [43.75, -20.0]]]]}, "2022-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, -22.25], [42.75, -22.0], [42.85, -21.75], [42.75, -21.5], [42.97, -20.97], [43.32, -20.82], [43.47, -20.47], [43.82, -20.32], [43.85, -20.25], [43.75, -20.0], [43.97, -19.47], [44.5, -19.25], [45.03, -19.47], [45.25, -20.0], [45.15, -20.25], [45.18, -20.32], [45.25, -20.35], [45.5, -20.25], [46.03, -20.47], [46.25, -21.0], [46.03, -21.53], [45.68, -21.68], [45.53, -22.03], [45.0, -22.25], [44.75, -22.15], [44.68, -22.18], [44.53, -22.53], [44.18, -22.68], [44.15, -22.75], [44.25, -23.0], [44.03, -23.53], [43.5, -23.75], [42.97, -23.53], [42.75, -23.0], [42.85, -22.75], [42.75, -22.5], [42.85, -22.25]]]]}, "2022-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, -22.25], [42.75, -22.0], [42.85, -21.75], [42.75, -21.5], [42.97, -20.97], [43.32, -20.82], [43.47, -20.47], [43.82, -20.32], [43.85, -20.25], [43.75, -20.0], [43.97, -19.47], [44.5, -19.25], [45.03, -19.47], [45.18, -19.82], [45.25, -19.85], [45.5, -19.75], [46.03, -19.97], [46.25, -20.5], [46.15, -20.75], [46.25, -21.0], [46.15, -21.25], [46.25, -21.5], [46.03, -22.03], [45.5, -22.25], [45.25, -22.15], [45.0, -22.25], [44.75, -22.15], [44.68, -22.18], [44.53, -22.53], [44.18, -22.68], [44.15, -22.75], [44.25, -23.0], [44.03, -23.53], [43.5, -23.75], [42.97, -23.53], [42.75, -23.0], [42.85, -22.75], [42.75, -22.5], [42.85, -22.25]]]]}, "2022-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, -22.25], [42.75, -22.0], [42.85, -21.75], [42.75, -21.5], [42.97, -20.97], [43.32, -20.82], [43.47, -20.47], [43.82, -20.32], [43.85, -20.25], [43.75, -20.0], [43.96, -19.5], [43.75, -19.0], [43.97, -18.47], [44.5, -18.25], [45.03, -18.47], [45.25, -19.0], [45.04, -19.5], [45.18, -19.82], [45.25, -19.85], [45.5, -19.75], [46.03, -19.97], [46.25, -20.5], [46.15, -20.75], [46.25, -21.0], [46.15, -21.25], [46.25, -21.5], [46.03, -22.03], [45.5, -22.25], [45.25, -22.15], [45.0, -22.25], [44.75, -22.15], [44.68, -22.18], [44.53, -22.53], [44.18, -22.68], [44.15, -22.75], [44.25, -23.0], [44.03, -23.53], [43.5, -23.75], [42.97, -23.53], [42.75, -23.0], [42.85, -22.75], [42.75, -22.5], [42.85, -22.25]]]]}, "2022-06-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, -21.75], [42.75, -21.5], [42.97, -20.97], [43.32, -20.82], [43.47, -20.47], [43.82, -20.32], [43.85, -20.25], [43.75, -20.0], [43.96, -19.5], [43.75, -19.0], [43.85, -18.75], [43.75, -18.5], [43.85, -18.25], [43.75, -18.0], [43.97, -17.47], [44.5, -17.25], [45.03, -17.47], [45.18, -17.82], [45.53, -17.97], [45.75, -18.5], [45.65, -18.75], [45.75, -19.0], [45.65, -19.25], [45.75, -19.5], [45.63, -19.8], [46.03, -19.97], [46.25, -20.5], [46.15, -20.75], [46.25, -21.0], [46.15, -21.25], [46.25, -21.5], [46.03, -22.03], [45.5, -22.25], [45.25, -22.15], [45.0, -22.25], [44.75, -22.15], [44.68, -22.18], [44.53, -22.53], [44.18, -22.68], [44.03, -23.03], [43.5, -23.25], [42.97, -23.03], [42.75, -22.5], [42.85, -22.25], [42.75, -22.0], [42.85, -21.75]]]]}, "2022-06-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.75, -21.5], [42.97, -20.97], [43.32, -20.82], [43.47, -20.47], [43.82, -20.32], [43.85, -20.25], [43.75, -20.0], [43.96, -19.5], [43.75, -19.0], [43.85, -18.75], [43.75, -18.5], [43.85, -18.25], [43.75, -18.0], [43.97, -17.47], [44.5, -17.25], [45.03, -17.47], [45.18, -17.82], [45.53, -17.97], [45.75, -18.5], [45.65, -18.75], [45.75, -19.0], [45.65, -19.25], [45.75, -19.5], [45.54, -20.0], [45.68, -20.32], [46.03, -20.47], [46.25, -21.0], [46.15, -21.25], [46.25, -21.5], [46.03, -22.03], [45.5, -22.25], [45.25, -22.15], [45.0, -22.25], [44.75, -22.15], [44.68, -22.18], [44.53, -22.53], [44.0, -22.75], [43.47, -22.53], [43.32, -22.18], [42.97, -22.03], [42.75, -21.5]]]]}, "2022-06-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.47, -20.47], [43.82, -20.32], [43.85, -20.25], [43.75, -20.0], [43.96, -19.5], [43.75, -19.0], [43.85, -18.75], [43.75, -18.5], [43.85, -18.25], [43.75, -18.0], [43.97, -17.47], [44.5, -17.25], [45.03, -17.47], [45.18, -17.82], [45.53, -17.97], [45.75, -18.5], [45.65, -18.75], [45.75, -19.0], [45.65, -19.25], [45.75, -19.5], [45.54, -20.0], [45.68, -20.32], [46.03, -20.47], [46.25, -21.0], [46.15, -21.25], [46.25, -21.5], [46.03, -22.03], [45.5, -22.25], [45.25, -22.15], [45.0, -22.25], [44.75, -22.15], [44.5, -22.25], [44.25, -22.15], [44.0, -22.25], [43.47, -22.03], [43.25, -21.5], [43.35, -21.25], [43.25, -21.0], [43.47, -20.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.1842089162248612}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.2040260225345842}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.68001148242371, 24.87797665034668, 24.941756650268076, 24.981073212312708, 24.845090903669984, 24.657446230189237, 24.423410735032064]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.104372742950545, 26.18933341448752, 26.066378393052958, 26.314316881707384, 26.266804440048816, 26.083776216517265, 25.857058391460782]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.8624303305479277, 2.1166635753617777, 2.36161644636098, 2.3987814059681134, 2.2875237424239803, 2.1125374880730785, 1.966647172342167]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.9774356288368722, 2.5915847778539387, 3.0676594877598973, 3.1842089162248612, 3.0187212350338655, 2.910487696487337, 2.4578968059572617]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4759188803148788, 1.5316995089669414, 1.7159453411073518, 1.76652904763041, 1.7036801379262345, 1.586264541908882, 1.4581626104714212]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.493418345273357, 1.6908684934138372, 2.013682944262329, 2.279606351588492, 2.118645428894234, 2.067679489587433, 1.6917500013465487]}}