{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:03:52.425887", "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": "2025-Mar-19_to_2025-Mar-23_35.5_39.0"}, "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": 2025030000535}, "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": "March 19 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 23 2025"}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 91798.8908013227}, "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": ["T\u00fcrkiye"]}, "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": []}, "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": 39.0}, "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": 35.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "35.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 31.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 36.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[37.15, 38.25], [37.25, 38.0], [37.03, 37.47], [36.5, 37.25], [36.25, 37.35], [36.0, 37.25], [35.75, 37.35], [35.5, 37.25], 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each time step", "value": {"2025-03-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.47, 37.97], [30.25, 38.5], [30.47, 39.03], [31.0, 39.25], [31.25, 39.15], [31.5, 39.25], [31.75, 39.15], [32.0, 39.25], [32.53, 39.03], [32.68, 38.68], [32.75, 38.65], [32.82, 38.68], [32.97, 39.03], [33.32, 39.18], [33.35, 39.25], [33.25, 39.5], [33.47, 40.03], [33.82, 40.18], [33.97, 40.53], [34.5, 40.75], [34.75, 40.65], [35.0, 40.75], [35.25, 40.65], [35.5, 40.75], [35.75, 40.65], [36.0, 40.75], [36.53, 40.53], [36.68, 40.18], [37.03, 40.03], [37.25, 39.5], [37.03, 38.97], [36.5, 38.75], [36.25, 38.85], [36.0, 38.75], [35.75, 38.85], [35.68, 38.82], [35.65, 38.75], [35.75, 38.5], [35.53, 37.97], [35.0, 37.75], [34.75, 37.85], [34.5, 37.75], [34.25, 37.85], [34.18, 37.82], [34.15, 37.75], [34.25, 37.5], [34.03, 36.97], [33.5, 36.75], [33.25, 36.85], [33.0, 36.75], [32.5, 36.96], [32.0, 36.75], [31.47, 36.97], [31.32, 37.32], [30.97, 37.47], [30.82, 37.82], [30.47, 37.97]]]]}, 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