{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:56.688240", "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-Sep-29_to_2015-Oct-02_19.5_62.5"}, "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": 2015090002716}, "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 29 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 02 2015"}, "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": 123794.90392511857}, "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": ["Finland", "Sweden"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Europe"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "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": ["Gulf of Bothnia"]}, "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": 62.5}, "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": 19.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "19.5\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": 24.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 60.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 65.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.47, 63.53], [19.0, 63.75], [19.25, 63.65], [19.5, 63.75], [19.75, 63.65], [19.82, 63.68], [19.97, 64.03], [20.5, 64.25], [20.75, 64.15], [20.82, 64.18], [20.97, 64.53], [21.32, 64.68], [21.35, 64.75], [21.25, 65.0], [21.35, 65.25], [21.25, 65.5], [21.47, 66.03], [22.0, 66.25], [22.25, 66.15], [22.5, 66.25], [22.75, 66.15], [23.0, 66.25], [23.25, 66.15], [23.5, 66.25], [23.75, 66.15], [24.0, 66.25], [24.25, 66.15], [24.5, 66.25], [25.03, 66.03], [25.25, 65.5], [25.03, 64.97], [24.68, 64.82], [24.53, 64.47], [24.0, 64.25], [23.75, 64.35], [23.68, 64.32], [23.53, 63.97], [23.18, 63.82], [23.03, 63.47], [22.5, 63.25], [22.25, 63.35], [22.0, 63.25], [21.75, 63.35], [21.68, 63.32], [21.53, 62.97], [21.18, 62.82], [21.03, 62.47], [20.68, 62.32], [20.53, 61.97], [20.0, 61.75], [19.75, 61.85], [19.5, 61.75], [19.25, 61.85], [19.0, 61.75], [18.47, 61.97], [18.25, 62.5], [18.35, 62.75], [18.25, 63.0], [18.47, 63.53]]]]}, "2015-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.47, 62.53], [14.0, 62.75], [14.25, 62.65], [14.5, 62.75], [14.75, 62.65], [14.82, 62.68], [14.97, 63.03], [15.5, 63.25], [15.75, 63.15], [16.0, 63.25], [16.25, 63.15], [16.32, 63.18], [16.47, 63.53], [17.0, 63.75], [17.25, 63.65], [17.5, 63.75], [17.75, 63.65], [18.0, 63.75], [18.25, 63.65], [18.32, 63.68], [18.47, 64.03], [19.0, 64.25], [19.25, 64.15], [19.32, 64.18], [19.47, 64.53], [20.0, 64.75], [20.25, 64.65], [20.32, 64.68], [20.47, 65.03], [20.82, 65.18], [20.97, 65.53], [21.32, 65.68], [21.47, 66.03], [22.0, 66.25], [22.25, 66.15], [22.5, 66.25], [22.75, 66.15], [23.0, 66.25], [23.25, 66.15], [23.5, 66.25], [23.75, 66.15], [24.0, 66.25], [24.25, 66.15], [24.5, 66.25], [25.03, 66.03], [25.25, 65.5], [25.03, 64.97], [24.68, 64.82], [24.53, 64.47], [24.18, 64.32], [24.03, 63.97], [23.68, 63.82], [23.53, 63.47], [23.0, 63.25], [22.75, 63.35], [22.68, 63.32], [22.53, 62.97], [22.18, 62.82], [22.03, 62.47], [21.68, 62.32], [21.65, 62.25], [21.68, 62.18], [22.03, 62.03], [22.25, 61.5], [22.03, 60.97], [21.68, 60.82], [21.53, 60.47], [21.0, 60.25], [20.75, 60.35], [20.5, 60.25], [20.25, 60.35], [20.0, 60.25], [19.75, 60.35], [19.5, 60.25], [19.25, 60.35], [19.0, 60.25], [18.75, 60.35], [18.5, 60.25], [18.25, 60.35], [18.0, 60.25], [17.75, 60.35], [17.5, 60.25], [16.97, 60.47], [16.75, 61.0], [16.85, 61.25], [16.82, 61.32], [16.75, 61.35], [16.5, 61.25], [16.25, 61.35], [16.0, 61.25], [15.75, 61.35], [15.5, 61.25], [15.25, 61.35], [15.18, 61.32], [15.03, 60.97], [14.5, 60.75], [14.25, 60.85], [14.0, 60.75], [13.47, 60.97], [13.25, 61.5], [13.35, 61.75], [13.25, 62.0], [13.47, 62.53]]]]}, "2015-10-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.47, 62.53], [14.0, 62.75], [14.25, 62.65], [14.5, 62.75], [14.75, 62.65], [14.82, 62.68], [14.97, 63.03], [15.5, 63.25], [15.75, 63.15], [16.0, 63.25], [16.25, 63.15], [16.32, 63.18], [16.47, 63.53], [17.0, 63.75], [17.25, 63.65], [17.5, 63.75], [17.75, 63.65], [18.0, 63.75], [18.25, 63.65], [18.32, 63.68], [18.47, 64.03], [19.0, 64.25], [19.25, 64.15], [19.32, 64.18], [19.47, 64.53], [20.0, 64.75], [20.25, 64.65], [20.32, 64.68], [20.47, 65.03], [20.82, 65.18], [20.97, 65.53], [21.32, 65.68], [21.47, 66.03], [22.0, 66.25], [22.25, 66.15], [22.5, 66.25], [22.75, 66.15], [23.0, 66.25], [23.25, 66.15], [23.5, 66.25], [23.75, 66.15], [24.0, 66.25], [24.25, 66.15], [24.5, 66.25], [25.03, 66.03], [25.25, 65.5], [25.03, 64.97], [24.68, 64.82], [24.53, 64.47], [24.18, 64.32], [24.03, 63.97], [23.68, 63.82], [23.53, 63.47], [23.0, 63.25], [22.75, 63.35], [22.68, 63.32], [22.53, 62.97], [22.18, 62.82], [22.03, 62.47], [21.68, 62.32], [21.65, 62.25], [21.68, 62.18], [22.03, 62.03], [22.25, 61.5], [22.03, 60.97], [21.68, 60.82], [21.53, 60.47], [21.0, 60.25], [20.75, 60.35], [20.5, 60.25], [20.25, 60.35], [20.0, 60.25], [19.75, 60.35], [19.5, 60.25], [19.25, 60.35], [19.0, 60.25], [18.75, 60.35], [18.5, 60.25], [18.25, 60.35], [18.0, 60.25], [17.75, 60.35], [17.5, 60.25], [16.97, 60.47], [16.75, 61.0], [16.85, 61.25], [16.82, 61.32], [16.75, 61.35], [16.5, 61.25], [16.25, 61.35], [16.0, 61.25], [15.75, 61.35], [15.5, 61.25], [15.25, 61.35], [15.18, 61.32], [15.03, 60.97], [14.5, 60.75], [14.25, 60.85], [14.0, 60.75], [13.47, 60.97], [13.25, 61.5], [13.35, 61.75], [13.25, 62.0], [13.47, 62.53]]]]}, "2015-10-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.47, 62.53], [14.0, 62.75], [14.25, 62.65], [14.5, 62.75], [14.75, 62.65], [14.82, 62.68], [14.97, 63.03], [15.5, 63.25], [15.75, 63.15], [16.0, 63.25], [16.25, 63.15], [16.32, 63.18], [16.47, 63.53], [17.0, 63.75], [17.25, 63.65], [17.5, 63.75], [17.75, 63.65], [18.0, 63.75], [18.25, 63.65], [18.32, 63.68], [18.47, 64.03], [19.0, 64.25], [19.25, 64.15], [19.32, 64.18], [19.47, 64.53], [20.0, 64.75], [20.25, 64.65], [20.32, 64.68], [20.47, 65.03], [20.82, 65.18], [20.97, 65.53], [21.5, 65.75], [21.75, 65.65], [22.0, 65.75], [22.25, 65.65], [22.5, 65.75], [22.75, 65.65], [23.0, 65.75], [23.53, 65.53], [23.68, 65.18], [24.03, 65.03], [24.25, 64.5], [24.03, 63.97], [23.68, 63.82], [23.53, 63.47], [23.0, 63.25], [22.75, 63.35], [22.68, 63.32], [22.53, 62.97], [22.18, 62.82], [22.03, 62.47], [21.68, 62.32], [21.65, 62.25], [21.68, 62.18], [22.03, 62.03], [22.25, 61.5], [22.03, 60.97], [21.68, 60.82], [21.53, 60.47], [21.0, 60.25], [20.75, 60.35], [20.5, 60.25], [20.25, 60.35], [20.0, 60.25], [19.75, 60.35], [19.5, 60.25], [19.25, 60.35], [19.0, 60.25], [18.75, 60.35], [18.5, 60.25], [18.25, 60.35], [18.0, 60.25], [17.75, 60.35], [17.5, 60.25], [16.97, 60.47], [16.75, 61.0], [16.85, 61.25], [16.82, 61.32], [16.75, 61.35], [16.5, 61.25], [16.25, 61.35], [16.0, 61.25], [15.75, 61.35], [15.5, 61.25], [15.25, 61.35], [15.18, 61.32], [15.03, 60.97], [14.5, 60.75], [14.25, 60.85], [14.0, 60.75], [13.47, 60.97], [13.25, 61.5], [13.35, 61.75], [13.25, 62.0], [13.47, 62.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.9564424370964275}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.511846881996005}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.656139106955607, 12.133497581447841, 12.170790019109859, 12.117680518667385]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.493975734456, 13.537726402124633, 13.961486862074196, 14.22199708406572]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.622538259719636, 3.460192473154547, 3.6709728759044165, 3.682653440662166]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.146348477012623, 4.6781986358626, 5.9564424370964275, 5.1841266678379725]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4885817250086681, 1.669504348245008, 1.6916333951181928, 1.6709752667880984]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6627986896224642, 2.1056930717806117, 2.102430892950855, 2.124674176276432]}}