{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:53.885793", "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-Jun-26_to_2019-Jun-28_73.5_60.0"}, "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": 2019060000829}, "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 26 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 28 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": 100087.29892527731}, "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": 60.0}, "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": 73.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "73.5\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": 77.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 57.75}, "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": {"2019-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[69.47, 59.53], [70.0, 59.75], [70.25, 59.65], [70.5, 59.75], [70.75, 59.65], [70.82, 59.68], [70.97, 60.03], [71.5, 60.25], [71.75, 60.15], [71.82, 60.18], [71.85, 60.25], [71.75, 60.5], [71.85, 60.75], [71.75, 61.0], [71.97, 61.53], [72.32, 61.68], [72.47, 62.03], [73.0, 62.25], [73.25, 62.15], [73.32, 62.18], [73.47, 62.53], [74.0, 62.75], [74.25, 62.65], [74.32, 62.68], [74.47, 63.03], [75.0, 63.25], [75.53, 63.03], [75.68, 62.68], [75.75, 62.65], [76.0, 62.75], [76.53, 62.53], [76.68, 62.18], [76.75, 62.15], [77.0, 62.25], [77.53, 62.03], [77.75, 61.5], [77.53, 60.97], [77.18, 60.82], [77.03, 60.47], [76.5, 60.25], [76.25, 60.35], [76.0, 60.25], [75.75, 60.35], [75.68, 60.32], [75.65, 60.25], [75.68, 60.18], [76.03, 60.03], [76.25, 59.5], [76.03, 58.97], [75.5, 58.75], [75.25, 58.85], [75.18, 58.82], [75.03, 58.47], [74.5, 58.25], [74.25, 58.35], [74.18, 58.32], [74.03, 57.97], [73.5, 57.75], [73.25, 57.85], [73.18, 57.82], [73.03, 57.47], [72.5, 57.25], [72.25, 57.35], [72.0, 57.25], [71.47, 57.47], [71.32, 57.82], [71.25, 57.85], [71.0, 57.75], [70.75, 57.85], [70.5, 57.75], [70.25, 57.85], [70.0, 57.75], [69.47, 57.97], [69.25, 58.5], [69.35, 58.75], [69.25, 59.0], [69.47, 59.53]]]]}, "2019-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[69.47, 59.53], [70.0, 59.75], [70.25, 59.65], [70.5, 59.75], [70.75, 59.65], [70.82, 59.68], [70.97, 60.03], [71.5, 60.25], [71.75, 60.15], [71.82, 60.18], [71.85, 60.25], [71.75, 60.5], [71.85, 60.75], [71.75, 61.0], [71.97, 61.53], [72.32, 61.68], [72.47, 62.03], [73.0, 62.25], [73.25, 62.15], [73.32, 62.18], [73.47, 62.53], [74.0, 62.75], [74.25, 62.65], [74.32, 62.68], [74.47, 63.03], [75.0, 63.25], [75.53, 63.03], [75.68, 62.68], [75.75, 62.65], [76.0, 62.75], [76.53, 62.53], [76.68, 62.18], [76.75, 62.15], [77.0, 62.25], [77.53, 62.03], [77.75, 61.5], [77.53, 60.97], [77.18, 60.82], [77.03, 60.47], [76.5, 60.25], [76.25, 60.35], [76.0, 60.25], [75.75, 60.35], [75.68, 60.32], [75.65, 60.25], [75.68, 60.18], [76.03, 60.03], [76.25, 59.5], [76.03, 58.97], [75.5, 58.75], [75.25, 58.85], [75.18, 58.82], [75.03, 58.47], [74.5, 58.25], [74.25, 58.35], [74.18, 58.32], [74.03, 57.97], [73.5, 57.75], [73.25, 57.85], [73.18, 57.82], [73.03, 57.47], [72.5, 57.25], [72.25, 57.35], [72.0, 57.25], [71.47, 57.47], [71.32, 57.82], [71.25, 57.85], [71.0, 57.75], [70.75, 57.85], [70.5, 57.75], [70.25, 57.85], [70.0, 57.75], [69.47, 57.97], [69.25, 58.5], [69.35, 58.75], [69.25, 59.0], [69.47, 59.53]]]]}, "2019-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[69.47, 59.53], [70.0, 59.75], [70.25, 59.65], [70.5, 59.75], [70.75, 59.65], [70.82, 59.68], [70.97, 60.03], [71.5, 60.25], [71.75, 60.15], [71.82, 60.18], [71.85, 60.25], [71.75, 60.5], [71.85, 60.75], [71.75, 61.0], [71.97, 61.53], [72.32, 61.68], [72.47, 62.03], [73.0, 62.25], [73.25, 62.15], [73.32, 62.18], [73.47, 62.53], [74.0, 62.75], [74.25, 62.65], [74.32, 62.68], [74.47, 63.03], [75.0, 63.25], [75.53, 63.03], [75.68, 62.68], [75.75, 62.65], [76.0, 62.75], [76.53, 62.53], [76.68, 62.18], [76.75, 62.15], [77.0, 62.25], [77.53, 62.03], [77.75, 61.5], [77.53, 60.97], [77.18, 60.82], [77.03, 60.47], [76.5, 60.25], [76.25, 60.35], [76.0, 60.25], [75.75, 60.35], [75.68, 60.32], [75.65, 60.25], [75.68, 60.18], [76.03, 60.03], [76.25, 59.5], [76.03, 58.97], [75.5, 58.75], [75.25, 58.85], [75.18, 58.82], [75.03, 58.47], [74.5, 58.25], [74.25, 58.35], [74.18, 58.32], [74.03, 57.97], [73.5, 57.75], [73.25, 57.85], [73.18, 57.82], [73.03, 57.47], [72.5, 57.25], [72.25, 57.35], [72.0, 57.25], [71.47, 57.47], [71.32, 57.82], [71.25, 57.85], [71.0, 57.75], [70.75, 57.85], [70.5, 57.75], [70.25, 57.85], [70.0, 57.75], [69.47, 57.97], [69.25, 58.5], [69.35, 58.75], [69.25, 59.0], [69.47, 59.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.135869845401203}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.735765520986393}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.840081826610913, 11.203999452339417, 11.200019745769055]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [8.527137662436928, 10.292313195599206, 9.659271556095291]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.651768230217755, -6.2843878347246696, -6.27114049801675]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-9.135869845401203, -7.220373684328592, -7.328705286976174]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8324622910221768, -1.5335350340295077, -1.508753311053446]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3081763188686497, -1.789375147591686, -1.647314332819863]}}