{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:03:03.119328", "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": "2025-Jan-30_to_2025-Feb-01_62.0_28.0"}, "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": 2025010000813}, "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 30 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 01 2025"}, "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": 68094.90460248989}, "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": ["Afghanistan", "Iran, Islamic Republic of", "Pakistan"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "Asia", "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": 28.0}, "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": 62.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "62.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 61.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 64.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 27.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 30.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[60.47, 30.03], [61.0, 30.25], [61.53, 30.03], [61.68, 29.68], [61.75, 29.65], [61.82, 29.68], [61.97, 30.03], [62.5, 30.25], [62.75, 30.15], [62.82, 30.18], [62.97, 30.53], [63.5, 30.75], [64.03, 30.53], [64.25, 30.0], [64.15, 29.75], [64.25, 29.5], [64.03, 28.97], [63.68, 28.82], [63.53, 28.47], [63.13, 28.3], [63.18, 28.18], [63.5, 28.04], [64.0, 28.25], [64.25, 28.15], [64.5, 28.25], [65.03, 28.03], [65.25, 27.5], [65.15, 27.25], [65.25, 27.0], [65.03, 26.47], [64.5, 26.25], [64.25, 26.35], [64.0, 26.25], [63.75, 26.35], [63.5, 26.25], [63.25, 26.35], [63.0, 26.25], [62.75, 26.35], [62.5, 26.25], [61.97, 26.47], [61.82, 26.82], [61.75, 26.85], [61.5, 26.75], [60.97, 26.97], [60.75, 27.5], [60.85, 27.75], [60.75, 28.0], [60.85, 28.25], [60.75, 28.5], [60.85, 28.75], [60.82, 28.82], [60.47, 28.97], [60.25, 29.5], [60.47, 30.03]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.C.Asia", "S.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": 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anomaly over entire duration", "value": -5.928140271700546}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [6.529183705647824, 5.659551544189412, 6.0774487304687455]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [2.138135528564476, 1.1027351379394759, 2.950362141927087]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.354474214433717, -6.409086543613921, -6.020860057053999]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.114488717393272, -8.322777826438028, -7.599279522864549]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5136304158519263, 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