{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:12.911888", "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": "2017-Jun-04_to_2017-Jun-06_58.0_49.0"}, "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": 2017060000160}, "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": "June 04 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 06 2017"}, "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": 98846.8996298837}, "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": ["Kazakhstan", "Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Europe", "W.Siberia"]}, "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": 49.0}, "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": 58.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "58.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 56.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 62.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 46.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 51.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.46, 49.5], [56.25, 50.0], [56.47, 50.53], [57.0, 50.75], 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[[[[56.46, 49.5], [56.25, 50.0], [56.47, 50.53], [57.0, 50.75], [57.25, 50.65], [57.5, 50.75], [57.75, 50.65], [58.0, 50.75], [58.25, 50.65], [58.32, 50.68], [58.35, 50.75], [58.25, 51.0], [58.47, 51.53], [59.0, 51.75], [59.25, 51.65], [59.5, 51.75], [60.03, 51.53], [60.18, 51.18], [60.25, 51.15], [60.5, 51.25], [61.03, 51.03], [61.18, 50.68], [61.53, 50.53], [61.68, 50.18], [61.75, 50.15], [62.0, 50.25], [62.53, 50.03], [62.75, 49.5], [62.65, 49.25], [62.75, 49.0], [62.53, 48.47], [62.0, 48.25], [61.75, 48.35], [61.5, 48.25], [61.25, 48.35], [61.0, 48.25], [60.75, 48.35], [60.68, 48.32], [60.53, 47.97], [60.0, 47.75], [59.75, 47.85], [59.68, 47.82], [59.53, 47.47], [59.0, 47.25], [58.75, 47.35], [58.5, 47.25], [58.25, 47.35], [58.18, 47.32], [58.15, 47.25], [58.25, 47.0], [58.03, 46.47], [57.5, 46.25], [56.97, 46.47], [56.75, 47.0], [56.85, 47.25], [56.82, 47.32], [56.47, 47.47], [56.25, 48.0], [56.46, 48.5], [56.25, 49.0], [56.46, 49.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.147847010694363}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.79373340972929}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.266416976194648, 13.096943673077533, 14.505614940026533]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.540439306639882, 10.27253970055466, 13.196319960746507]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.79455776789622, -6.969297658759953, -5.617344802531696]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-9.147847010694363, -8.39759983004393, -6.463488466190427]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8748366689274536, -1.6958299628182882, -1.4104297694889223]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.13134727561099, -1.9951086747829503, -1.6251126320540272]}}