{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:31.715123", "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": "2020-Jun-20_to_2020-Jun-23_343.5_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": 2020060002471}, "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 20 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 23 2020"}, "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": 52170.35487390729}, "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", "Morocco"]}, "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": 343.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "343.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 342.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 346.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.75, 21.0], [-17.53, 21.53], [-17.18, 21.68], [-17.03, 22.03], [-16.5, 22.25], [-15.97, 22.03], [-15.75, 21.5], [-15.85, 21.25], [-15.82, 21.18], [-15.47, 21.03], [-15.32, 20.68], [-15.25, 20.65], [-15.0, 20.75], [-14.75, 20.65], [-14.5, 20.75], [-13.97, 20.53], [-13.75, 20.0], [-13.97, 19.47], [-14.5, 19.25], [-14.75, 19.35], [-15.0, 19.25], [-15.25, 19.35], [-15.5, 19.25], [-16.03, 19.47], [-16.18, 19.82], [-16.25, 19.85], [-16.5, 19.75], [-17.03, 19.97], [-17.18, 20.32], [-17.53, 20.47], [-17.75, 21.0]]]]}, "2020-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.65, 20.75], [-17.75, 21.0], [-17.53, 21.53], [-17.18, 21.68], [-17.03, 22.03], [-16.5, 22.25], [-15.97, 22.03], [-15.75, 21.5], [-15.85, 21.25], [-15.82, 21.18], [-15.75, 21.15], [-15.5, 21.25], [-15.25, 21.15], [-15.0, 21.25], [-14.5, 21.04], [-14.0, 21.25], [-13.75, 21.15], [-13.5, 21.25], [-12.97, 21.03], [-12.75, 20.5], [-12.85, 20.25], [-12.75, 20.0], [-12.97, 19.47], [-13.32, 19.32], [-13.47, 18.97], [-14.0, 18.75], [-14.25, 18.85], [-14.5, 18.75], [-15.03, 18.97], [-15.18, 19.32], [-15.25, 19.35], [-15.5, 19.25], [-16.03, 19.47], [-16.18, 19.82], [-16.25, 19.85], [-16.32, 19.82], [-16.47, 19.47], [-17.0, 19.25], [-17.53, 19.47], [-17.75, 20.0], [-17.65, 20.25], [-17.75, 20.5], [-17.65, 20.75]]]]}, "2020-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.65, 20.75], [-17.75, 21.0], [-17.53, 21.53], [-17.18, 21.68], [-17.03, 22.03], [-16.5, 22.25], [-15.97, 22.03], [-15.75, 21.5], [-15.85, 21.25], [-15.82, 21.18], [-15.75, 21.15], [-15.5, 21.25], [-15.25, 21.15], [-15.0, 21.25], [-14.5, 21.04], [-14.0, 21.25], [-13.75, 21.15], [-13.5, 21.25], [-12.97, 21.03], [-12.75, 20.5], [-12.85, 20.25], [-12.75, 20.0], [-12.97, 19.47], [-13.32, 19.32], [-13.47, 18.97], [-14.0, 18.75], [-14.25, 18.85], [-14.5, 18.75], [-15.03, 18.97], [-15.18, 19.32], [-15.25, 19.35], [-15.5, 19.25], [-16.03, 19.47], [-16.18, 19.82], [-16.25, 19.85], [-16.32, 19.82], [-16.47, 19.47], [-17.0, 19.25], [-17.53, 19.47], [-17.75, 20.0], [-17.65, 20.25], [-17.75, 20.5], [-17.65, 20.75]]]]}, "2020-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.65, 20.75], [-17.75, 21.0], [-17.53, 21.53], [-17.0, 21.75], [-16.47, 21.53], [-16.32, 21.18], [-16.25, 21.15], [-16.0, 21.25], [-15.75, 21.15], [-15.5, 21.25], [-15.25, 21.15], [-15.0, 21.25], [-14.5, 21.04], [-14.0, 21.25], [-13.75, 21.15], [-13.5, 21.25], [-12.97, 21.03], [-12.75, 20.5], [-12.85, 20.25], [-12.75, 20.0], [-12.97, 19.47], [-13.32, 19.32], [-13.47, 18.97], [-14.0, 18.75], [-14.25, 18.85], [-14.5, 18.75], [-15.03, 18.97], [-15.18, 19.32], [-15.25, 19.35], [-15.5, 19.25], [-16.03, 19.47], [-16.18, 19.82], [-16.25, 19.85], [-16.32, 19.82], [-16.47, 19.47], [-17.0, 19.25], [-17.53, 19.47], [-17.75, 20.0], [-17.65, 20.25], [-17.75, 20.5], [-17.65, 20.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.202699144805251}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.4478380293198683}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.36086330399269, 34.362815202816364, 34.77256968909467, 34.055901214252174]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [37.104410897315915, 38.94197023070495, 39.97168789115102, 38.59878481824086]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.2510407308085263, 3.5797243060145356, 3.9569070927322674, 2.8251619209550896]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.510798055292071, 7.202699144805251, 5.464361436746401, 4.340156925247243]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3709965938188213, 1.6674144371872488, 1.896105802153292, 1.4163323649387478]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5749977989462667, 2.5573064185531367, 2.3820919541821457, 1.8697654649080373]}}