{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:54:32.486167", "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-Feb-08_to_2025-Feb-12_48.0_35.5"}, "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": 2025020000205}, "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": "February 08 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 12 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": 55404.98500642326}, "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": ["Iran"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.C.Asia"]}, "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": 35.5}, "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": 48.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "48.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 46.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 50.75}, "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": 37.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-02-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.47, 34.97], [47.25, 35.5], [47.47, 36.03], [48.0, 36.25], [48.25, 36.15], [48.5, 36.25], [49.03, 36.03], [49.25, 35.5], [49.03, 34.97], [48.5, 34.75], [48.25, 34.85], [48.0, 34.75], [47.47, 34.97]]]]}, "2025-02-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.53, 36.03], [50.68, 35.68], [51.03, 35.53], [51.25, 35.0], [51.15, 34.75], [51.25, 34.5], [51.15, 34.25], [51.25, 34.0], [51.03, 33.47], [50.5, 33.25], [49.97, 33.47], [49.75, 34.0], [49.85, 34.25], [49.75, 34.5], [49.85, 34.75], [49.82, 34.82], [49.47, 34.97], [49.25, 35.5], [49.47, 36.03], [50.0, 36.25], [50.53, 36.03]]], [[[46.47, 37.53], [47.0, 37.75], [47.53, 37.53], [47.68, 37.18], [47.75, 37.15], [48.0, 37.25], [48.25, 37.15], [48.5, 37.25], [49.03, 37.03], [49.25, 36.5], [49.15, 36.25], [49.25, 36.0], [49.15, 35.75], [49.25, 35.5], [49.03, 34.97], [48.68, 34.82], [48.53, 34.47], [48.0, 34.25], [47.75, 34.35], [47.5, 34.25], [46.97, 34.47], [46.75, 35.0], [46.97, 35.53], [47.32, 35.68], [47.38, 35.8], [46.97, 35.97], [46.82, 36.32], [46.47, 36.47], [46.25, 37.0], [46.47, 37.53]]]]}, "2025-02-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.25, 35.5], [46.47, 36.03], [46.82, 36.18], [46.85, 36.25], [46.82, 36.32], [46.47, 36.47], [46.25, 37.0], [46.47, 37.53], [47.0, 37.75], [47.53, 37.53], [47.68, 37.18], [47.75, 37.15], [48.0, 37.25], [48.25, 37.15], [48.5, 37.25], [49.03, 37.03], [49.25, 36.5], [49.15, 36.25], [49.25, 36.0], [49.15, 35.75], [49.18, 35.68], [49.25, 35.65], [49.32, 35.68], [49.47, 36.03], [50.0, 36.25], [50.53, 36.03], [50.68, 35.68], [51.03, 35.53], [51.25, 35.0], [51.15, 34.75], [51.25, 34.5], [51.15, 34.25], [51.25, 34.0], [51.03, 33.47], [50.5, 33.25], [49.97, 33.47], [49.82, 33.82], [49.75, 33.85], [49.5, 33.75], [48.97, 33.97], [48.82, 34.32], [48.75, 34.35], [48.5, 34.25], [48.25, 34.35], [48.0, 34.25], [47.75, 34.35], [47.5, 34.25], [46.97, 34.47], [46.82, 34.82], [46.47, 34.97], [46.25, 35.5]]]]}, "2025-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.25, 35.5], 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anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4702953852051857, -1.6610900279352159, -2.559174794803451, -2.661754923000554, -2.1249676798769]}}