{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:29.367935", "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-Oct-06_to_2022-Oct-09_84.0_18.0"}, "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": 2022100000315}, "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": "October 06 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 09 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": 77386.06246792598}, "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": ["India"]}, "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": 18.0}, "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": 84.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "84.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 82.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 84.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[81.35, 15.75], [81.25, 16.0], [81.47, 16.53], [81.82, 16.68], [81.85, 16.75], [81.75, 17.0], [81.97, 17.53], [82.5, 17.75], 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"Polygon vertices describing the boundary of the event at each time step", "value": {"2022-10-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[83.47, 18.53], [84.0, 18.75], [84.53, 18.53], [84.68, 18.18], [85.03, 18.03], [85.25, 17.5], [85.03, 16.97], [84.5, 16.75], [84.25, 16.85], [84.0, 16.75], [83.75, 16.85], [83.5, 16.75], [82.97, 16.97], [82.75, 17.5], [82.97, 18.03], [83.32, 18.18], [83.47, 18.53]]]]}, "2022-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[81.25, 15.0], [81.35, 15.25], [81.25, 15.5], [81.35, 15.75], [81.25, 16.0], [81.47, 16.53], [81.82, 16.68], [81.85, 16.75], [81.75, 17.0], [81.97, 17.53], [82.5, 17.75], [82.75, 17.65], [82.82, 17.68], [82.97, 18.03], [83.32, 18.18], [83.47, 18.53], [84.0, 18.75], [84.53, 18.53], [84.68, 18.18], [85.03, 18.03], [85.25, 17.5], [85.15, 17.25], [85.25, 17.0], [85.03, 16.47], [84.5, 16.25], [84.25, 16.35], [84.0, 16.25], [83.75, 16.35], [83.68, 16.32], [83.65, 16.25], [83.75, 16.0], [83.53, 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"Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.523472419396455, 26.42469652064807, 26.330779697626042, 26.495912349261403]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2520878881325785, -1.2969172331543177, -1.3692642410696447, -1.1634694651613307]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.5029452538728947, -1.5555243574445967, -1.5310662141768603, -1.4618788048909437]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5129690806785012, -1.7229770631264512, -1.829395370911333, -1.5116873029114968]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7526227333621445, -2.0585214059555064, -2.1601128286580162, -1.7350125383232242]}}