{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:01:13.236347", "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-Sep-25_to_2024-Sep-28_12.0_35.0"}, "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": 2024090002203}, "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 25 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 28 2024"}, "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": 141796.62028343335}, "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": ["Tunisia"]}, "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": ["Malta Plateau", "Mediterranean Sea", "Tunisian"]}, "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": 35.0}, "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": 12.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "12.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 8.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 16.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 33.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[9.0, 35.04], [9.32, 35.18], [9.47, 35.53], [10.0, 35.75], [10.43, 35.57], [10.25, 36.0], [10.35, 36.25], [10.25, 36.5], 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"IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.25, 35.0], [10.46, 35.5], [10.25, 36.0], [10.35, 36.25], [10.25, 36.5], [10.47, 37.03], [11.0, 37.25], [11.25, 37.15], [11.5, 37.25], [12.03, 37.03], [12.18, 36.68], [12.25, 36.65], [12.5, 36.75], [13.03, 36.53], [13.25, 36.0], [13.15, 35.75], [13.25, 35.5], [13.15, 35.25], [13.25, 35.0], [13.03, 34.47], [12.68, 34.32], [12.53, 33.97], [12.0, 33.75], [11.75, 33.85], [11.5, 33.75], [11.25, 33.85], [11.0, 33.75], [10.47, 33.97], [10.25, 34.5], [10.35, 34.75], [10.25, 35.0]]]]}, "2024-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.75, 34.5], [7.97, 35.03], [8.5, 35.25], [9.0, 35.04], [9.32, 35.18], [9.47, 35.53], [10.0, 35.75], [10.43, 35.57], [10.25, 36.0], 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26.52431034185946]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.149939473470056, 30.292729949951195, 31.924225107828818, 30.50587615966799]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.004805398483761, 2.280903324549722, 3.111579129067477, 2.290497031175341]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.39909302820422, 4.118608952751799, 6.12392567862986, 4.1512025849850716]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5356445673036938, 1.5604084467069452, 2.0350840613864465, 1.525023769145264]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8226488279979611, 1.990362334236388, 2.692133048012204, 2.0165365432680784]}}