{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:54:12.933100", "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": "2024-Dec-31_to_2025-Jan-03_8.5_21.0"}, "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": 2024120002448}, "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 31 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 03 2025"}, "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": 113097.2366770248}, "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": ["Algeria", "Niger"]}, "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": []}, "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": 21.0}, "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": 8.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "8.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 6.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 11.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-12-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.03, 17.97], [7.5, 17.75], [6.97, 17.97], [6.75, 18.5], [6.97, 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[7.32, 19.18], [7.35, 19.25], [7.32, 19.32], [6.97, 19.47], [6.82, 19.82], [6.47, 19.97], [6.25, 20.5], [6.35, 20.75], [6.25, 21.0], [6.47, 21.53]]]]}, "2025-01-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[6.47, 21.53], [6.82, 21.68], [6.97, 22.03], [7.32, 22.18], [7.47, 22.53], [8.0, 22.75], [8.25, 22.65], [8.5, 22.75], [8.75, 22.65], [9.0, 22.75], [9.53, 22.53], [9.75, 22.0], [9.65, 21.75], [9.75, 21.5], [9.65, 21.25], [9.68, 21.18], [9.75, 21.15], [10.0, 21.25], [10.5, 21.04], [11.0, 21.25], [11.53, 21.03], [11.75, 20.5], [11.65, 20.25], [11.75, 20.0], [11.53, 19.47], [11.18, 19.32], [11.15, 19.25], [11.25, 19.0], [11.03, 18.47], [10.5, 18.25], [10.25, 18.35], [10.0, 18.25], [9.47, 18.47], [9.32, 18.82], [9.25, 18.85], [9.18, 18.82], [9.15, 18.75], [9.25, 18.5], [9.15, 18.25], [9.25, 18.0], [9.03, 17.47], [8.5, 17.25], [7.97, 17.47], [7.8, 17.88], [7.5, 17.75], [6.97, 17.97], [6.75, 18.5], [6.97, 19.03], [7.32, 19.18], [7.35, 19.25], [7.32, 19.32], [6.97, 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"description": "The daily evolution of maximum t2m anomalies.", "value": [4.9686701776512905, 6.920057275894408, 7.352147664593474, 6.440604379370825]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.9878222902297822, 1.8908010451614932, 2.02763169452027, 1.656714359213383]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.996670170190949, 2.6697336605550697, 2.6402533098059724, 2.0084614764641984]}}