{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:17:04.392009", "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": "2020-Jul-12_to_2020-Jul-14_22.0_48.0"}, "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": 2020070000503}, "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": "July 12 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 14 2020"}, "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": "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": 50075.653968148676}, "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": ["Hungary", "Romania", "Slovakia", "Ukraine"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe", "Europe", "Europe", "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": []}, "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": 48.0}, "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": 22.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "22.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 19.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 23.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 46.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 49.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[19.25, 47.5], [19.47, 48.03], [20.0, 48.25], [20.25, 48.146], [20.5, 48.25], [20.75, 48.146], [20.823, 48.177], [20.97, 48.53], [21.323, 48.677], [21.354, 48.75], [21.25, 49.0], [21.47, 49.53], [22.0, 49.75], [22.53, 49.53], [22.677, 49.177], [22.75, 49.146], [23.0, 49.25], [23.53, 49.03], [23.677, 48.677], [24.03, 48.53], [24.25, 48.0], [24.146, 47.75], [24.25, 47.5], [24.146, 47.25], [24.25, 47.0], [24.03, 46.47], [23.5, 46.25], [23.25, 46.354], [23.0, 46.25], [22.75, 46.354], [22.5, 46.25], [21.97, 46.47], [21.823, 46.823], [21.75, 46.854], [21.5, 46.75], [21.25, 46.854], [21.177, 46.823], [21.043, 46.5], [21.25, 46.0], [21.03, 45.47], [20.5, 45.25], [19.97, 45.47], [19.823, 45.823], [19.75, 45.854], [19.5, 45.75], [18.97, 45.97], [18.75, 46.5], [18.97, 47.03], [19.323, 47.177], [19.354, 47.25], [19.25, 47.5]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["West&Central-Europe"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-07-12T11:30:00.000000000": 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anomalies.", "value": [-1.9987758956875183, -1.6738122876288355, -1.4766987343072837]}}