{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:31:15.638067", "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-Jun-04_to_2022-Jun-06_83.5_52.0"}, "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": 2022060000248}, "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 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 06 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": 87105.70450223361}, "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": ["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": 52.0}, "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": 83.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "83.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 80.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 86.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 50.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 53.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.97, 50.47], [79.75, 51.0], [79.97, 51.53], [80.5, 51.75], [80.75, 51.65], [81.0, 51.75], [81.25, 51.65], [81.32, 51.68], [81.46, 52.0], [81.32, 52.32], [80.97, 52.47], [80.75, 53.0], [80.97, 53.53], [81.5, 53.75], [81.75, 53.65], [82.0, 53.75], [82.25, 53.65], [82.32, 53.68], [82.47, 54.03], [83.0, 54.25], [83.25, 54.15], [83.5, 54.25], [83.75, 54.15], [84.0, 54.25], [84.25, 54.15], [84.5, 54.25], [84.75, 54.15], [85.0, 54.25], [85.53, 54.03], [85.68, 53.68], [85.75, 53.65], [86.0, 53.75], [86.53, 53.53], [86.75, 53.0], [86.65, 52.75], [86.75, 52.5], [86.53, 51.97], [86.18, 51.82], [86.03, 51.47], [85.5, 51.25], [85.25, 51.35], [85.18, 51.32], [85.15, 51.25], [85.25, 51.0], [85.03, 50.47], [84.5, 50.25], [84.25, 50.35], [84.0, 50.25], [83.75, 50.35], [83.5, 50.25], [83.25, 50.35], [83.0, 50.25], [82.75, 50.35], [82.5, 50.25], [82.25, 50.35], [82.0, 50.25], [81.75, 50.35], [81.5, 50.25], [81.25, 50.35], [81.0, 50.25], [80.75, 50.35], [80.5, 50.25], [79.97, 50.47]]]]}, "2022-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.97, 50.47], [79.75, 51.0], [79.97, 51.53], [80.5, 51.75], [80.75, 51.65], [81.0, 51.75], [81.25, 51.65], [81.32, 51.68], [81.46, 52.0], [81.32, 52.32], [80.97, 52.47], [80.75, 53.0], [80.97, 53.53], [81.5, 53.75], [81.75, 53.65], [82.0, 53.75], [82.25, 53.65], [82.32, 53.68], [82.47, 54.03], [83.0, 54.25], [83.25, 54.15], [83.5, 54.25], [83.75, 54.15], [84.0, 54.25], [84.25, 54.15], [84.5, 54.25], [84.75, 54.15], [85.0, 54.25], [85.53, 54.03], [85.68, 53.68], [85.75, 53.65], [86.0, 53.75], [86.53, 53.53], [86.75, 53.0], [86.65, 52.75], [86.75, 52.5], [86.53, 51.97], [86.18, 51.82], [86.03, 51.47], [85.5, 51.25], [85.25, 51.35], [85.18, 51.32], [85.15, 51.25], [85.25, 51.0], [85.03, 50.47], [84.5, 50.25], [84.25, 50.35], [84.0, 50.25], [83.75, 50.35], [83.5, 50.25], [83.25, 50.35], [83.0, 50.25], [82.75, 50.35], [82.5, 50.25], [82.25, 50.35], [82.0, 50.25], [81.75, 50.35], [81.5, 50.25], [81.25, 50.35], [81.0, 50.25], [80.75, 50.35], [80.5, 50.25], [79.97, 50.47]]]]}, "2022-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.97, 50.47], [79.75, 51.0], [79.97, 51.53], [80.5, 51.75], [80.75, 51.65], [81.0, 51.75], [81.25, 51.65], [81.32, 51.68], [81.46, 52.0], [81.32, 52.32], [80.97, 52.47], [80.75, 53.0], [80.97, 53.53], [81.5, 53.75], [81.75, 53.65], [82.0, 53.75], [82.25, 53.65], [82.32, 53.68], [82.47, 54.03], [83.0, 54.25], [83.25, 54.15], [83.5, 54.25], [83.75, 54.15], [84.0, 54.25], [84.25, 54.15], [84.5, 54.25], [84.75, 54.15], [85.0, 54.25], [85.53, 54.03], [85.68, 53.68], [85.75, 53.65], [86.0, 53.75], [86.53, 53.53], [86.75, 53.0], [86.65, 52.75], [86.75, 52.5], [86.53, 51.97], [86.18, 51.82], [86.03, 51.47], [85.5, 51.25], [85.25, 51.35], [85.18, 51.32], [85.15, 51.25], [85.25, 51.0], [85.03, 50.47], [84.5, 50.25], [84.25, 50.35], [84.0, 50.25], [83.75, 50.35], [83.5, 50.25], [83.25, 50.35], [83.0, 50.25], [82.75, 50.35], [82.5, 50.25], [82.25, 50.35], [82.0, 50.25], [81.75, 50.35], [81.5, 50.25], [81.25, 50.35], [81.0, 50.25], [80.75, 50.35], [80.5, 50.25], [79.97, 50.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.320371670705356}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -7.1948489543911816}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.73892469791906, 8.694804306068477, 9.768630601811822]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [3.8074626218088383, 2.9307839569221983, 3.4960181766520577]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.3671863306161995, -7.567572658745898, -6.649787873811451]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.982250427188262, -9.320371670705356, -8.058115055925839]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8058427819118263, -1.8555882262323595, -1.6583843368729236]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.090979923403536, -2.2579448162224587, -2.010185042166462]}}