{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:16:52.955568", "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": "2022-Jan-21_to_2022-Jan-24_53.0_36.0"}, "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": 2022010000863}, "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": "January 21 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 24 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 87801.55876714867}, "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, Islamic Republic of"]}, "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": 36.0}, "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": 53.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "53.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 52.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 57.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 37.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[55.5, 34.46], [55.0, 34.25], [54.75, 34.35], [54.68, 34.32], [54.65, 34.25], [54.75, 34.0], [54.53, 33.47], [54.0, 33.25], [53.47, 33.47], [53.3, 33.88], [53.0, 33.75], [52.47, 33.97], [52.32, 34.32], [51.97, 34.47], [51.82, 34.82], [51.47, 34.97], [51.25, 35.5], [51.47, 36.03], [52.0, 36.25], [52.3, 36.13], [52.35, 36.25], [52.25, 36.5], [52.47, 37.03], [53.0, 37.25], [53.25, 37.15], [53.5, 37.25], [53.75, 37.15], [54.0, 37.25], [54.53, 37.03], [54.68, 36.68], [54.75, 36.65], [54.82, 36.68], [54.85, 36.75], [54.75, 37.0], [54.85, 37.25], [54.75, 37.5], [54.97, 38.03], [55.5, 38.25], [56.03, 38.03], [56.2, 37.63], [56.5, 37.75], [56.75, 37.65], [57.0, 37.75], [57.53, 37.53], [57.75, 37.0], [57.54, 36.5], [57.75, 36.0], [57.65, 35.75], [57.75, 35.5], [57.65, 35.25], [57.75, 35.0], [57.53, 34.47], [57.0, 34.25], [56.5, 34.46], [56.0, 34.25], [55.5, 34.46]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.C.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": 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