{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:13:18.174046", "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": "2018-Jul-12_to_2018-Jul-16_347.0_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": 2018070002210}, "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": "July 12 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 16 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 60772.30778982657}, "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": ["Mauritania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": ["North Atlantic 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": 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": 347.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "347.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 343.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 348.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.5, 21.75], [-13.25, 21.65], [-13.0, 21.75], [-12.75, 21.65], [-12.5, 21.75], [-12.25, 21.65], [-12.0, 21.75], [-11.75, 21.65], [-11.5, 21.75], [-10.97, 21.53], [-10.75, 21.0], [-10.97, 20.47], [-11.5, 20.25], [-11.75, 20.35], [-11.82, 20.32], [-11.97, 19.97], [-12.5, 19.75], [-12.75, 19.85], [-13.0, 19.75], [-13.25, 19.85], [-13.5, 19.75], [-13.75, 19.85], [-14.0, 19.75], [-14.53, 19.97], [-14.75, 20.5], [-14.53, 21.03], [-14.18, 21.18], [-14.03, 21.53], [-13.5, 21.75]]]]}, "2018-07-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.03, 21.53], [-16.5, 21.75], [-16.25, 21.65], [-16.0, 21.75], [-15.47, 21.53], [-15.32, 21.18], [-15.25, 21.15], [-15.0, 21.25], [-14.75, 21.15], [-14.5, 21.25], [-14.25, 21.15], [-14.18, 21.18], [-14.03, 21.53], [-13.5, 21.75], [-13.25, 21.65], [-13.0, 21.75], [-12.75, 21.65], [-12.5, 21.75], [-12.25, 21.65], [-12.0, 21.75], [-11.75, 21.65], [-11.5, 21.75], [-10.97, 21.53], [-10.75, 21.0], [-10.97, 20.47], [-11.5, 20.25], [-11.75, 20.35], [-11.82, 20.32], [-11.97, 19.97], [-12.5, 19.75], [-12.75, 19.85], [-13.0, 19.75], [-13.25, 19.85], [-13.5, 19.75], [-13.75, 19.85], [-13.82, 19.82], [-13.97, 19.47], [-14.5, 19.25], [-15.03, 19.47], [-15.18, 19.82], [-15.25, 19.85], [-15.5, 19.75], [-15.75, 19.85], [-16.0, 19.75], [-16.25, 19.85], [-16.5, 19.75], [-17.03, 19.97], [-17.25, 20.5], [-17.15, 20.75], [-17.25, 21.0], [-17.03, 21.53]]]]}, "2018-07-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.03, 21.53], [-16.5, 21.75], [-16.25, 21.65], [-16.0, 21.75], [-15.47, 21.53], [-15.32, 21.18], [-15.25, 21.15], [-15.0, 21.25], [-14.75, 21.15], [-14.5, 21.25], [-14.25, 21.15], [-14.18, 21.18], [-14.03, 21.53], [-13.5, 21.75], [-13.25, 21.65], [-13.0, 21.75], [-12.75, 21.65], [-12.5, 21.75], [-12.25, 21.65], [-12.0, 21.75], [-11.75, 21.65], [-11.5, 21.75], [-10.97, 21.53], [-10.75, 21.0], [-10.97, 20.47], [-11.32, 20.32], [-11.47, 19.97], [-12.0, 19.75], [-12.25, 19.85], [-12.32, 19.82], [-12.47, 19.47], [-13.0, 19.25], [-13.25, 19.35], [-13.5, 19.25], [-13.75, 19.35], [-14.0, 19.25], [-14.25, 19.35], [-14.5, 19.25], [-15.03, 19.47], [-15.18, 19.82], [-15.25, 19.85], [-15.5, 19.75], [-15.75, 19.85], [-16.0, 19.75], [-16.25, 19.85], [-16.5, 19.75], [-17.03, 19.97], [-17.25, 20.5], [-17.15, 20.75], [-17.25, 21.0], [-17.03, 21.53]]]]}, "2018-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.03, 21.53], [-16.5, 21.75], [-16.25, 21.65], [-16.0, 21.75], [-15.47, 21.53], [-15.32, 21.18], [-15.25, 21.15], [-15.0, 21.25], [-14.75, 21.15], [-14.5, 21.25], [-14.25, 21.15], [-14.0, 21.25], [-13.75, 21.15], [-13.68, 21.18], [-13.53, 21.53], [-13.0, 21.75], [-12.75, 21.65], [-12.5, 21.75], [-12.25, 21.65], [-12.0, 21.75], [-11.75, 21.65], [-11.5, 21.75], [-10.97, 21.53], [-10.75, 21.0], [-10.97, 20.47], [-11.32, 20.32], [-11.47, 19.97], [-12.0, 19.75], [-12.25, 19.85], [-12.32, 19.82], [-12.47, 19.47], [-13.0, 19.25], [-13.25, 19.35], [-13.5, 19.25], [-13.75, 19.35], [-14.0, 19.25], [-14.25, 19.35], [-14.5, 19.25], 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"description": "Maximum t2m anomaly recorded over entire duration", "value": 5.96206337217518}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.2762793100852896}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [37.19573794063024, 35.97852464958106, 36.38554135425369, 36.69407778399267, 36.2083471609987]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [38.143145452177805, 38.30485309397113, 38.649230479272035, 39.447703552098744, 38.495757948866185]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.7526804492708012, 3.2646932961032795, 3.2831370632546957, 3.570018865618721, 3.153006872062892]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.9768917049429433, 4.894636192462826, 5.399587786113898, 5.96206337217518, 4.7278835126657555]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4914166903658144, 1.5649502648944877, 1.6330583982015294, 1.770719872142648, 1.530517631892789]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7566466451228204, 1.9677088004570524, 2.094629844375685, 2.3541815993807615, 2.0536052291642797]}}