{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:33.867881", "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-May-31_to_2014-Jun-05_6.0_15.5"}, "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": 2014050003097}, "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": "May 31 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 05 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 59582.33458832626}, "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": ["Niger"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "Western-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": 15.5}, "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": 6.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "6.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 4.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 7.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 13.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.97, 14.97], [4.75, 15.5], [4.97, 16.03], [5.5, 16.25], [5.75, 16.15], [6.0, 16.25], [6.53, 16.03], [6.75, 15.5], [6.53, 14.97], [6.0, 14.75], [5.75, 14.85], [5.5, 14.75], [4.97, 14.97]]]]}, "2014-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.97, 16.53], [4.32, 16.68], [4.47, 17.03], [4.82, 17.18], [4.97, 17.53], [5.5, 17.75], [6.03, 17.53], [6.25, 17.0], [6.15, 16.75], [6.18, 16.68], [6.53, 16.53], [6.68, 16.18], [7.03, 16.03], [7.25, 15.5], [7.03, 14.97], [6.68, 14.82], [6.54, 14.5], [6.75, 14.0], [6.53, 13.47], [6.0, 13.25], [5.47, 13.47], [5.25, 14.0], [5.46, 14.5], [5.32, 14.82], [5.2, 14.88], [5.03, 14.47], [4.5, 14.25], [3.97, 14.47], [3.75, 15.0], [3.96, 15.5], [3.75, 16.0], [3.97, 16.53]]]]}, "2014-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.85, 15.75], [3.75, 16.0], [3.97, 16.53], [4.32, 16.68], [4.47, 17.03], [4.82, 17.18], [4.97, 17.53], [5.5, 17.75], [6.03, 17.53], [6.25, 17.0], [6.15, 16.75], [6.18, 16.68], [6.53, 16.53], [6.68, 16.18], [7.03, 16.03], [7.18, 15.68], [7.53, 15.53], [7.75, 15.0], [7.65, 14.75], [7.75, 14.5], [7.53, 13.97], [7.0, 13.75], [6.75, 13.85], [6.68, 13.82], [6.53, 13.47], [6.0, 13.25], [5.47, 13.47], [5.25, 14.0], [5.35, 14.25], [5.25, 14.5], [5.35, 14.75], [5.32, 14.82], [5.25, 14.85], [5.18, 14.82], [5.03, 14.47], [4.5, 14.25], [3.97, 14.47], [3.75, 15.0], [3.85, 15.25], [3.75, 15.5], [3.85, 15.75]]]]}, "2014-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.85, 15.75], [3.75, 16.0], [3.97, 16.53], [4.32, 16.68], [4.47, 17.03], [4.82, 17.18], [4.97, 17.53], [5.5, 17.75], [6.03, 17.53], [6.25, 17.0], [6.15, 16.75], [6.18, 16.68], [6.53, 16.53], [6.68, 16.18], [7.03, 16.03], [7.18, 15.68], [7.53, 15.53], [7.75, 15.0], [7.65, 14.75], [7.75, 14.5], [7.53, 13.97], [7.0, 13.75], [6.75, 13.85], [6.68, 13.82], [6.53, 13.47], [6.0, 13.25], [5.47, 13.47], [5.25, 14.0], [5.35, 14.25], [5.25, 14.5], [5.35, 14.75], [5.32, 14.82], [5.25, 14.85], [5.18, 14.82], [5.03, 14.47], [4.5, 14.25], [3.97, 14.47], [3.75, 15.0], [3.85, 15.25], [3.75, 15.5], [3.85, 15.75]]]]}, "2014-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.85, 15.75], [3.75, 16.0], [3.97, 16.53], [4.5, 16.75], [4.75, 16.65], [5.0, 16.75], [5.25, 16.65], [5.5, 16.75], [6.03, 16.53], [6.18, 16.18], [6.25, 16.15], [6.5, 16.25], [7.03, 16.03], [7.18, 15.68], [7.53, 15.53], [7.75, 15.0], [7.65, 14.75], [7.75, 14.5], [7.53, 13.97], [7.0, 13.75], [6.75, 13.85], [6.68, 13.82], [6.53, 13.47], [6.0, 13.25], [5.47, 13.47], [5.25, 14.0], [5.35, 14.25], [5.25, 14.5], [5.35, 14.75], [5.32, 14.82], [5.25, 14.85], [5.18, 14.82], [5.03, 14.47], [4.5, 14.25], [3.97, 14.47], [3.75, 15.0], [3.85, 15.25], [3.75, 15.5], [3.85, 15.75]]]]}, "2014-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.75, 16.0], [3.97, 16.53], [4.5, 16.75], [4.75, 16.65], [5.0, 16.75], [5.25, 16.65], [5.5, 16.75], [6.03, 16.53], [6.18, 16.18], [6.25, 16.15], [6.5, 16.25], [7.03, 16.03], [7.18, 15.68], [7.53, 15.53], [7.75, 15.0], [7.53, 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{"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.8224544424787155, 1.843986601609725, 1.941786630126408, 1.937095283901573, 2.2980407386327855, 1.9477826961063236]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8631903703100647, 2.224343327494239, 2.230756955518757, 2.4026623783575474, 2.9033496004785775, 2.1915833823675825]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2545577278029554, 1.339678455180566, 1.4050679977285296, 1.3990364762571508, 1.596489366280019, 1.3722758096122376]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3233214727110914, 1.5137869647053876, 1.5886857578015365, 1.584293605586716, 1.9143224010603295, 1.4748023817440925]}}