{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:23:06.004776", "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": "2021-Jan-21_to_2021-Jan-23_20.0_59.5"}, "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": 2021010002308}, "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 21 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 23 2021"}, "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": 63562.770562836835}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Europe", "West&Central-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": ["Baltic Sea", "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": 59.5}, "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": 20.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "20.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 18.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 22.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 55.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 60.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.25, 60.5], [18.47, 61.03], [19.0, 61.25], [19.53, 61.03], 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"MultiPolygon", "coordinates": [[[[18.25, 60.5], [18.47, 61.03], [19.0, 61.25], [19.53, 61.03], [19.68, 60.68], [19.75, 60.65], [20.0, 60.75], [20.25, 60.65], [20.5, 60.75], [20.75, 60.65], [21.0, 60.75], [21.53, 60.53], [21.68, 60.18], [22.03, 60.03], [22.18, 59.68], [22.53, 59.53], [22.75, 59.0], [22.53, 58.47], [22.18, 58.32], [22.15, 58.25], [22.25, 58.0], [22.03, 57.47], [21.5, 57.25], [21.25, 57.35], [21.0, 57.25], [20.57, 57.43], [20.68, 57.18], [21.03, 57.03], [21.25, 56.5], [21.15, 56.25], [21.25, 56.0], [21.15, 55.75], [21.25, 55.5], [21.03, 54.97], [20.5, 54.75], [20.25, 54.85], [20.0, 54.75], [19.75, 54.85], [19.5, 54.75], [19.25, 54.85], [19.0, 54.75], [18.47, 54.97], [18.25, 55.5], [18.47, 56.03], [18.82, 56.18], [18.85, 56.25], [18.75, 56.5], [18.85, 56.75], [18.75, 57.0], [18.85, 57.25], [18.75, 57.5], [18.97, 58.03], [19.32, 58.18], [19.35, 58.25], [19.32, 58.32], [19.25, 58.35], [19.0, 58.25], [18.75, 58.35], [18.5, 58.25], [17.97, 58.47], [17.75, 59.0], [17.97, 59.53], [18.32, 59.68], [18.46, 60.0], [18.25, 60.5]]]]}, "2021-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.25, 60.5], [18.47, 61.03], [19.0, 61.25], [19.53, 61.03], [19.68, 60.68], [19.75, 60.65], [20.0, 60.75], [20.25, 60.65], [20.5, 60.75], [20.75, 60.65], [21.0, 60.75], [21.53, 60.53], [21.68, 60.18], [22.03, 60.03], [22.18, 59.68], [22.53, 59.53], [22.75, 59.0], [22.53, 58.47], [22.18, 58.32], [22.15, 58.25], [22.25, 58.0], [22.03, 57.47], [21.5, 57.25], [21.25, 57.35], [21.0, 57.25], [20.57, 57.43], [20.68, 57.18], [21.03, 57.03], [21.25, 56.5], [21.15, 56.25], [21.25, 56.0], [21.15, 55.75], [21.25, 55.5], [21.03, 54.97], [20.5, 54.75], [20.25, 54.85], [20.0, 54.75], [19.75, 54.85], [19.5, 54.75], [19.25, 54.85], [19.0, 54.75], [18.47, 54.97], [18.25, 55.5], [18.47, 56.03], [18.82, 56.18], [18.85, 56.25], [18.75, 56.5], [18.85, 56.75], [18.75, 57.0], [18.85, 57.25], [18.75, 57.5], [18.97, 58.03], [19.32, 58.18], [19.35, 58.25], [19.32, 58.32], 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{"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.929411354498541, 5.229155442243723, 4.525754925969579]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5829770810733261, 1.64696406566768, 1.268743732141422]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9048426960589258, 1.9042892521290187, 1.4888435874881012]}}