{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:33:59.409327", "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": "2023-Jan-09_to_2023-Jan-13_2.5_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": 2023010001973}, "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": "January 09 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 13 2023"}, "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": 57679.82469154098}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "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": 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": 2.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "2.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 0.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 4.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 30.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 33.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[1.82, 33.18], [1.97, 33.53], [2.5, 33.75], [2.75, 33.65], [3.0, 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[1.0, 30.25], [0.47, 30.47], [0.25, 31.0], [0.47, 31.53], [0.82, 31.68], [0.85, 31.75], [0.75, 32.0]]]]}, "2023-01-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[0.75, 32.0], [0.97, 32.53], [1.32, 32.68], [1.47, 33.03], [1.82, 33.18], [1.97, 33.53], [2.5, 33.75], [2.75, 33.65], [3.0, 33.75], [3.25, 33.65], [3.32, 33.68], [3.47, 34.03], [4.0, 34.25], [4.53, 34.03], [4.75, 33.5], [4.53, 32.97], [4.18, 32.82], [4.15, 32.75], [4.25, 32.5], [4.15, 32.25], [4.25, 32.0], [4.03, 31.47], [3.68, 31.32], [3.65, 31.25], [3.75, 31.0], [3.53, 30.47], [3.0, 30.25], [2.75, 30.35], [2.5, 30.25], [2.25, 30.35], [2.0, 30.25], [1.75, 30.35], [1.5, 30.25], [1.25, 30.35], [1.0, 30.25], [0.47, 30.47], [0.25, 31.0], [0.47, 31.53], [0.82, 31.68], [0.85, 31.75], [0.75, 32.0]]]]}, "2023-01-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[0.75, 32.0], [0.97, 32.53], [1.32, 32.68], [1.47, 33.03], [1.82, 33.18], [1.97, 33.53], [2.5, 33.75], [2.75, 33.65], [3.0, 33.75], [3.3, 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31.75], [0.75, 32.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.20417353723235}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.7989187869632226}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.989037865999535, 12.991162529571227, 12.320628303384296, 12.25548171598524, 12.55701344321119]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.155673876081835, 14.444375885550642, 13.781970752326913, 13.57410243142266, 13.46237231078453]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.198232357271658, 4.183998988355413, 3.5433844960615386, 3.4565613190269326, 3.7563398060562863]}, "anom_evo_maxamp": {"name": 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