{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:51.143415", "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": "2015-Apr-12_to_2015-Apr-16_0.5_36.0"}, "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": 2015040001844}, "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": "April 12 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 16 2015"}, "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": 100650.95967813086}, "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", "Morocco"]}, "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": ["Mediterranean Sea - Western 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": 36.0}, "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": 0.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "0.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -2.25}, "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": 33.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[0.0, 36.75], [0.25, 36.65], [0.5, 36.75], [0.75, 36.65], [1.0, 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33.25], [-2.53, 33.47], [-2.75, 34.0], [-2.65, 34.25], [-2.75, 34.5], [-2.53, 35.03]]]]}, "2015-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.53, 35.03], [-2.18, 35.18], [-2.03, 35.53], [-1.68, 35.68], [-1.53, 36.03], [-1.0, 36.25], [-0.75, 36.15], [-0.68, 36.18], [-0.65, 36.25], [-0.75, 36.5], [-0.53, 37.03], [0.0, 37.25], [0.25, 37.15], [0.5, 37.25], [0.75, 37.15], [1.0, 37.25], [1.25, 37.15], [1.5, 37.25], [1.75, 37.15], [2.0, 37.25], [2.25, 37.15], [2.5, 37.25], [2.75, 37.15], [3.0, 37.25], [3.25, 37.15], [3.5, 37.25], [3.75, 37.15], [4.0, 37.25], [4.53, 37.03], [4.75, 36.5], [4.54, 36.0], [4.75, 35.5], [4.53, 34.97], [4.0, 34.75], [3.75, 34.85], [3.5, 34.75], [3.25, 34.85], [3.0, 34.75], [2.7, 34.88], [2.53, 34.47], [2.18, 34.32], [2.03, 33.97], [1.5, 33.75], [1.25, 33.85], [1.0, 33.75], [0.47, 33.97], [0.32, 34.32], [0.25, 34.35], [0.18, 34.32], [0.03, 33.97], [-0.5, 33.75], [-0.75, 33.85], [-0.82, 33.82], [-0.97, 33.47], [-1.5, 33.25], [-1.75, 33.35], 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duration", "value": 5.656456190258743}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.119498967279128, 19.83251521131683, 20.854795601690796, 20.09559319392673, 19.358194499988656]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.716166076800675, 23.215669228639968, 25.94739536123592, 22.859384093977894, 22.15813430989016]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.2259371186015757, 5.2955990653688705, 6.446193462321437, 5.628242349629722, 5.0004812637684255]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.059401499758394, 7.515057165516225, 9.874408375211999, 7.969877100094379, 5.862696975488461]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4580928947790741, 2.0113965839343337, 2.373309270217306, 1.9810418665530927, 1.4904344599871429]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7185262613721235, 3.052765429886736, 4.338568356282965, 2.6492726244446394, 1.742714209204856]}}