{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:13:55.993038", "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-Jun-06_to_2020-Jun-08_89.5_42.5"}, "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": 2020060000227}, "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": "June 06 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 08 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": 61474.450438888416}, "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": ["China"]}, "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": 42.5}, "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": 89.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "89.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 86.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 91.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 41.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 43.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[85.75, 42.5], [85.97, 43.03], [86.5, 43.25], [86.75, 43.146], [87.0, 43.25], [87.25, 43.146], [87.5, 43.25], [87.75, 43.146], [87.823, 43.177], [87.854, 43.25], [87.75, 43.5], [87.97, 44.03], [88.5, 44.25], [88.75, 44.146], [89.0, 44.25], [89.25, 44.146], [89.5, 44.25], [89.75, 44.146], [90.0, 44.25], [90.53, 44.03], [90.677, 43.677], [90.75, 43.646], [91.0, 43.75], [91.53, 43.53], [91.75, 43.0], [91.646, 42.75], [91.75, 42.5], [91.646, 42.25], [91.75, 42.0], [91.53, 41.47], [91.177, 41.323], [91.03, 40.97], [90.5, 40.75], [90.25, 40.854], [90.0, 40.75], [89.75, 40.854], [89.5, 40.75], [88.97, 40.97], [88.75, 41.5], [88.854, 41.75], [88.823, 41.823], [88.75, 41.854], [88.5, 41.75], [88.25, 41.854], [88.0, 41.75], [87.75, 41.854], [87.677, 41.823], [87.53, 41.47], [87.0, 41.25], [86.47, 41.47], [86.323, 41.823], [85.97, 41.97], [85.75, 42.5]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.C.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": 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