{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:54:35.407355", "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": "2025-Feb-01_to_2025-Feb-05_14.5_25.5"}, "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": 2025020000743}, "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": "February 01 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 05 2025"}, "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": 63365.377924686974}, "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": ["Libya"]}, "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": 25.5}, "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": 14.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "14.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 13.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 17.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 25.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.25, 26.5], [13.47, 27.03], [13.82, 27.18], [13.85, 27.25], [13.75, 27.5], [13.97, 28.03], [14.32, 28.18], [14.47, 28.53], [15.0, 28.75], [15.25, 28.65], [15.5, 28.75], [15.75, 28.65], [16.0, 28.75], [16.25, 28.65], [16.5, 28.75], [17.03, 28.53], [17.25, 28.0], [17.15, 27.75], [17.25, 27.5], [17.04, 27.0], [17.25, 26.5], [17.03, 25.97], [16.5, 25.75], [16.25, 25.85], [16.18, 25.82], [16.03, 25.47], [15.5, 25.25], [15.25, 25.35], [15.18, 25.32], [15.03, 24.97], [14.5, 24.75], [13.97, 24.97], [13.75, 25.5], [13.85, 25.75], [13.82, 25.82], [13.47, 25.97], [13.25, 26.5]]]]}, "2025-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.25, 26.5], [13.47, 27.03], [13.82, 27.18], [13.85, 27.25], [13.75, 27.5], [13.97, 28.03], [14.32, 28.18], [14.47, 28.53], [15.0, 28.75], [15.25, 28.65], [15.5, 28.75], [15.75, 28.65], [16.0, 28.75], [16.25, 28.65], [16.5, 28.75], [17.03, 28.53], [17.25, 28.0], [17.15, 27.75], [17.25, 27.5], [17.13, 27.2], [17.53, 27.03], [17.75, 26.5], [17.53, 25.97], [17.0, 25.75], [16.75, 25.85], [16.5, 25.75], [16.25, 25.85], [16.18, 25.82], [16.03, 25.47], [15.5, 25.25], [15.25, 25.35], [15.18, 25.32], [15.03, 24.97], [14.5, 24.75], [13.97, 24.97], [13.75, 25.5], [13.85, 25.75], [13.82, 25.82], [13.47, 25.97], [13.25, 26.5]]]]}, "2025-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.25, 26.5], [13.47, 27.03], [13.82, 27.18], [13.85, 27.25], [13.75, 27.5], [13.97, 28.03], [14.32, 28.18], [14.47, 28.53], [15.0, 28.75], [15.25, 28.65], [15.5, 28.75], [15.75, 28.65], [16.0, 28.75], [16.25, 28.65], [16.5, 28.75], [17.03, 28.53], [17.25, 28.0], [17.15, 27.75], [17.25, 27.5], [17.13, 27.2], [17.53, 27.03], [17.75, 26.5], [17.53, 25.97], [17.0, 25.75], [16.75, 25.85], [16.5, 25.75], [16.25, 25.85], [16.18, 25.82], [16.03, 25.47], [15.5, 25.25], [15.25, 25.35], [15.18, 25.32], [15.03, 24.97], [14.5, 24.75], [13.97, 24.97], [13.75, 25.5], [13.85, 25.75], [13.82, 25.82], [13.47, 25.97], [13.25, 26.5]]]]}, "2025-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.97, 24.97], [13.75, 25.5], [13.97, 26.03], [14.5, 26.25], [15.03, 26.03], [15.25, 25.5], [15.03, 24.97], [14.5, 24.75], [13.97, 24.97]]], [[[15.25, 26.5], [15.47, 27.03], [16.0, 27.25], [16.25, 27.15], [16.5, 27.25], [16.75, 27.15], [17.0, 27.25], [17.53, 27.03], [17.75, 26.5], [17.53, 25.97], [17.0, 25.75], [16.75, 25.85], [16.5, 25.75], [16.25, 25.85], [16.0, 25.75], [15.47, 25.97], [15.25, 26.5]]]]}, "2025-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.5, 26.25], [15.03, 26.03], [15.25, 25.5], [15.03, 24.97], [14.5, 24.75], [13.97, 24.97], [13.75, 25.5], [13.97, 26.03], [14.5, 26.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.386656453613284}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.1323904191579635}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.83376649798771, 17.715059451780462, 17.559734875222944, 16.862237548828148, 16.961340840657556]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.568200683593773, 18.66493631998702, 18.47966028849288, 17.149713134765648, 16.961340840657556]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.671771137101775, 5.496345808997608, 5.312935834629318, 4.605691781179615, 4.849290654154515]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.2676573510300955, 6.386656453613284, 5.913953294375972, 4.793920535575467, 4.849290654154515]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4943689107938347, 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