{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:18:41.369987", "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-Mar-17_to_2022-Mar-19_62.0_39.0"}, "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": 2022030000597}, "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": "March 17 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 19 2022"}, "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": 83782.04908284667}, "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": ["Turkmenistan", "Uzbekistan"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 39.0}, "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": 59.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 65.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 38.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[58.75, 40.0], [58.97, 40.53], [59.5, 40.75], [59.75, 40.65], [60.0, 40.75], [60.25, 40.65], [60.5, 40.75], [61.03, 40.53], [61.18, 40.18], [61.25, 40.15], [61.5, 40.25], [61.75, 40.15], [62.0, 40.25], [62.25, 40.15], [62.32, 40.18], [62.47, 40.53], [62.82, 40.68], [62.85, 40.75], [62.75, 41.0], [62.97, 41.53], [63.5, 41.75], [64.03, 41.53], [64.25, 41.0], [64.15, 40.75], [64.18, 40.68], [64.53, 40.53], [64.68, 40.18], [64.75, 40.15], [65.0, 40.25], [65.53, 40.03], [65.75, 39.5], [65.65, 39.25], [65.75, 39.0], [65.53, 38.47], [65.18, 38.32], [65.03, 37.97], [64.5, 37.75], [63.97, 37.97], [63.75, 38.5], [63.85, 38.75], [63.82, 38.82], [63.75, 38.85], [63.68, 38.82], [63.53, 38.47], [63.18, 38.32], [63.03, 37.97], [62.5, 37.75], [62.25, 37.85], [62.18, 37.82], [62.03, 37.47], [61.5, 37.25], [61.25, 37.35], [61.0, 37.25], [60.75, 37.35], [60.5, 37.25], [59.97, 37.47], [59.75, 38.0], [59.85, 38.25], [59.75, 38.5], [59.85, 38.75], [59.75, 39.0], [59.85, 39.25], [59.82, 39.32], [59.75, 39.35], [59.5, 39.25], [58.97, 39.47], [58.75, 40.0]]]]}}, "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": {"2022-03-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[59.5, 39.25], [58.97, 39.47], [58.75, 40.0], [58.97, 40.53], [59.5, 40.75], [59.75, 40.65], [60.0, 40.75], [60.25, 40.65], [60.5, 40.75], [61.03, 40.53], [61.18, 40.18], [61.25, 40.15], [61.5, 40.25], [61.75, 40.15], [62.0, 40.25], [62.25, 40.15], [62.32, 40.18], [62.47, 40.53], [62.82, 40.68], [62.85, 40.75], [62.75, 41.0], [62.97, 41.53], [63.5, 41.75], [64.03, 41.53], [64.25, 41.0], [64.15, 40.75], [64.18, 40.68], [64.53, 40.53], [64.68, 40.18], [64.75, 40.15], [65.0, 40.25], [65.53, 40.03], [65.75, 39.5], [65.65, 39.25], [65.75, 39.0], [65.53, 38.47], [65.18, 38.32], [65.03, 37.97], [64.5, 37.75], [63.97, 37.97], [63.75, 38.5], [63.85, 38.75], [63.82, 38.82], [63.75, 38.85], [63.68, 38.82], [63.53, 38.47], [63.18, 38.32], 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3.782749321570577, 4.434407878744196]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [1.3176075444364983, 0.6258859288601002, 1.4557966781214304]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.998966092514263, -7.103726316633967, -6.669005391251405]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.551606265477005, -7.903140055310246, -7.455239537863747]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.432167905845443, -1.4578979608189355, -1.428629478684235]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.571503535310307, -1.573065896474199, -1.5133602683785086]}}