{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:50.889922", "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": "2019-Nov-13_to_2019-Nov-15_70.5_60.5"}, "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": 2019110000452}, "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": "November 13 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 15 2019"}, "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": 70361.60592352416}, "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": ["Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": 60.5}, "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": 70.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "70.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 69.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 76.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 58.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 62.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-11-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[69.47, 60.03], [69.82, 60.18], [69.85, 60.25], [69.75, 60.5], 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60.03]]]]}, "2019-11-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[69.47, 60.03], [69.82, 60.18], [69.85, 60.25], [69.75, 60.5], [69.97, 61.03], [70.5, 61.25], [70.75, 61.15], [71.0, 61.25], [71.25, 61.15], [71.5, 61.25], [71.75, 61.15], [71.82, 61.18], [71.97, 61.53], [72.5, 61.75], [72.75, 61.65], [73.0, 61.75], [73.5, 61.54], [74.0, 61.75], [74.3, 61.63], [74.47, 62.03], [74.82, 62.18], [74.85, 62.25], [74.75, 62.5], [74.97, 63.03], [75.5, 63.25], [76.03, 63.03], [76.18, 62.68], [76.25, 62.65], [76.5, 62.75], [77.03, 62.53], [77.25, 62.0], [77.03, 61.47], [76.68, 61.32], [76.53, 60.97], [76.18, 60.82], [76.15, 60.75], [76.25, 60.5], [76.15, 60.25], [76.25, 60.0], [76.03, 59.47], [75.68, 59.32], [75.53, 58.97], [75.0, 58.75], [74.75, 58.85], [74.5, 58.75], [73.97, 58.97], [73.82, 59.32], [73.75, 59.35], [73.5, 59.25], [73.25, 59.35], [73.18, 59.32], [73.03, 58.97], [72.5, 58.75], [72.25, 58.85], [72.18, 58.82], [72.03, 58.47], [71.5, 58.25], [71.25, 58.35], 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anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-12.290407050115979, -15.08888758062635, -12.763752638962922]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-14.453203864243363, -17.026192038090613, -14.576841796878227]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.656803275241307, -2.015795066822227, -1.5839407451487972]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.938232312031855, -2.3743151612978135, -1.7928429988740602]}}