{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:26.755949", "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": "2024-Apr-30_to_2024-May-04_77.0_22.5"}, "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": 2024040000681}, "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": "April 30 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 04 2024"}, "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": 79214.76477954809}, "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": 22.5}, "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": 77.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "77.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 75.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 79.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 22.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 26.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[75.75, 24.0], [75.85, 24.25], [75.82, 24.32], [75.75, 24.35], [75.5, 24.25], [74.97, 24.47], [74.75, 25.0], [74.85, 25.25], [74.75, 25.5], [74.97, 26.03], [75.5, 26.25], [75.75, 26.15], [75.82, 26.18], [75.97, 26.53], [76.5, 26.75], [77.03, 26.53], [77.25, 26.0], [77.15, 25.75], [77.25, 25.5], [77.15, 25.25], [77.18, 25.18], [77.53, 25.03], [77.68, 24.68], [77.75, 24.65], [78.0, 24.75], [78.53, 24.53], [78.75, 24.0], [78.65, 23.75], [78.68, 23.68], [78.75, 23.65], [79.0, 23.75], [79.53, 23.53], [79.75, 23.0], [79.53, 22.47], [79.0, 22.25], [78.75, 22.35], [78.68, 22.32], [78.53, 21.97], [78.0, 21.75], [77.75, 21.85], [77.68, 21.82], [77.53, 21.47], [77.0, 21.25], [76.75, 21.35], [76.5, 21.25], [76.25, 21.35], [76.0, 21.25], [75.47, 21.47], [75.25, 22.0], [75.47, 22.53], [75.82, 22.68], [75.96, 23.0], [75.75, 23.5], [75.85, 23.75], [75.75, 24.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": 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duration", "value": -3.422226593021418}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [31.336226623222956, 30.504570765008793, 29.85848545599538, 31.16141951221664, 32.1129522415261]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.577403552587555, 29.431503960497423, 28.88220914314735, 30.192797408395677, 32.1129522415261]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.7360037389793246, -3.5044190540825224, -4.186504434585337, -2.874634946125001, -1.922785954727658]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.750338237925689, -4.867910755486605, -5.554677222226644, -3.521624764868534, -1.922785954727658]}, "anom_scaled_evo_areamean": {"name": "Evolution of 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