{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:56.123369", "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": "2017-Sep-09_to_2017-Sep-11_21.5_32.5"}, "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": 2017090001574}, "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": "September 09 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 11 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 77612.07433807167}, "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": ["Mediterranean", "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": ["Mediterranean Sea - Eastern Basin"]}, "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": 32.5}, "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": 21.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "21.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 16.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 21.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 27.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 32.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-09-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.97, 29.53], [16.32, 29.68], [16.47, 30.03], [16.82, 30.18], 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"MultiPolygon", "coordinates": [[[[15.97, 29.53], [16.32, 29.68], [16.47, 30.03], [16.82, 30.18], [16.85, 30.25], [16.75, 30.5], [16.97, 31.03], [17.5, 31.25], [17.75, 31.15], [18.0, 31.25], [18.25, 31.15], [18.5, 31.25], [19.0, 31.04], [19.5, 31.25], [19.75, 31.15], [19.82, 31.18], [19.85, 31.25], [19.75, 31.5], [19.85, 31.75], [19.75, 32.0], [19.85, 32.25], [19.75, 32.5], [19.97, 33.03], [20.5, 33.25], [20.75, 33.15], [21.0, 33.25], [21.25, 33.15], [21.5, 33.25], [22.03, 33.03], [22.25, 32.5], [22.03, 31.97], [21.5, 31.75], [21.25, 31.85], [21.18, 31.82], [21.15, 31.75], [21.25, 31.5], [21.15, 31.25], [21.25, 31.0], [21.03, 30.47], [20.68, 30.32], [20.65, 30.25], [20.75, 30.0], [20.53, 29.47], [20.0, 29.25], [19.75, 29.35], [19.5, 29.25], [19.25, 29.35], [19.0, 29.25], [18.75, 29.35], [18.68, 29.32], [18.54, 29.0], [18.75, 28.5], [18.53, 27.97], [18.18, 27.82], [18.03, 27.47], [17.5, 27.25], [17.25, 27.35], [17.0, 27.25], [16.47, 27.47], [16.32, 27.82], [15.97, 27.97], [15.75, 28.5], [15.85, 28.75], [15.75, 29.0], [15.97, 29.53]]]]}, "2017-09-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.97, 29.53], [16.32, 29.68], [16.47, 30.03], [16.82, 30.18], [16.85, 30.25], [16.75, 30.5], [16.97, 31.03], [17.5, 31.25], [17.75, 31.15], [18.0, 31.25], [18.25, 31.15], [18.5, 31.25], [19.0, 31.04], [19.5, 31.25], [19.75, 31.15], [19.82, 31.18], [19.85, 31.25], [19.75, 31.5], [19.85, 31.75], [19.75, 32.0], [19.85, 32.25], [19.75, 32.5], [19.97, 33.03], [20.5, 33.25], [20.75, 33.15], [21.0, 33.25], [21.25, 33.15], [21.5, 33.25], [22.03, 33.03], [22.25, 32.5], [22.03, 31.97], [21.5, 31.75], [21.25, 31.85], [21.18, 31.82], [21.15, 31.75], [21.25, 31.5], [21.15, 31.25], [21.25, 31.0], [21.03, 30.47], [20.68, 30.32], [20.65, 30.25], [20.75, 30.0], [20.53, 29.47], [20.0, 29.25], [19.75, 29.35], [19.5, 29.25], [19.25, 29.35], [19.0, 29.25], [18.75, 29.35], [18.68, 29.32], [18.54, 29.0], [18.75, 28.5], [18.53, 27.97], [18.18, 27.82], [18.03, 27.47], [17.5, 27.25], 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"Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.3097859412218895, 5.212852601540476, 6.177908358859042]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7536050685509543, 1.6280171830425123, 2.193540641117669]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.7135999272622624, 2.675351970970778, 3.0233397092996768]}}