{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:03.224576", "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": "2018-Sep-02_to_2018-Sep-06_39.0_65.0"}, "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": 2018090001399}, "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 02 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 06 2018"}, "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": 54618.68743147395}, "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": ["Russian Federation"]}, "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": ["Asia"]}, "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": ["White Sea"]}, "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": 65.0}, "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": 39.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "39.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 34.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 40.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 63.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 66.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.97, 65.47], [34.75, 66.0], [34.97, 66.53], [35.5, 66.75], 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63.75], [34.47, 63.97], [34.25, 64.5], [34.35, 64.75], [34.25, 65.0], [34.35, 65.25]]]]}, "2018-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.25, 65.5], [34.47, 66.03], [34.82, 66.18], [34.97, 66.53], [35.5, 66.75], [35.75, 66.65], [36.0, 66.75], [36.25, 66.65], [36.5, 66.75], [36.75, 66.65], [37.0, 66.75], [37.25, 66.65], [37.5, 66.75], [37.75, 66.65], [38.0, 66.75], [38.25, 66.65], [38.5, 66.75], [39.0, 66.54], [39.5, 66.75], [40.03, 66.53], [40.18, 66.18], [40.53, 66.03], [40.68, 65.68], [41.03, 65.53], [41.25, 65.0], [41.03, 64.47], [40.5, 64.25], [40.25, 64.35], [40.0, 64.25], [39.75, 64.35], [39.68, 64.32], [39.53, 63.97], [39.18, 63.82], [39.03, 63.47], [38.5, 63.25], [38.25, 63.35], [38.0, 63.25], [37.75, 63.35], [37.5, 63.25], [37.25, 63.35], [37.0, 63.25], [36.47, 63.47], [36.32, 63.82], [36.25, 63.85], [36.0, 63.75], [35.75, 63.85], [35.5, 63.75], [35.25, 63.85], [35.0, 63.75], [34.75, 63.85], [34.5, 63.75], [33.97, 63.97], [33.75, 64.5], [33.97, 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