{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:52:07.971102", "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": "2024-Jun-29_to_2024-Jul-06_72.0_78.0"}, "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": 2024060000763}, "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 29 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 06 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 64925.64627743821}, "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": ["Arctic-Ocean", "Russian-Arctic"]}, "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": ["Barentsz Sea", "Kara Sea"]}, "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": 78.0}, "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": 72.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "72.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 61.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 76.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 75.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 79.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[63.0, 77.75], [63.25, 77.65], [63.5, 77.75], [64.03, 77.53], [64.25, 77.0], [64.15, 76.75], [64.25, 76.5], [64.03, 75.97], [63.5, 75.75], [63.25, 75.85], [63.0, 75.75], [62.75, 75.85], [62.5, 75.75], [61.97, 75.97], [61.75, 76.5], [61.97, 77.03], [62.32, 77.18], [62.47, 77.53], [63.0, 77.75]]]]}, "2024-06-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[62.32, 77.18], [62.47, 77.53], [63.0, 77.75], [63.25, 77.65], [63.5, 77.75], [64.0, 77.54], [64.5, 77.75], [65.03, 77.53], [65.18, 77.18], [65.25, 77.15], [65.5, 77.25], [65.75, 77.15], [66.0, 77.25], [66.25, 77.15], [66.5, 77.25], [67.03, 77.03], [67.25, 76.5], [67.03, 75.97], [66.5, 75.75], [66.25, 75.85], [66.0, 75.75], [65.75, 75.85], [65.5, 75.75], [65.25, 75.85], [65.0, 75.75], [64.75, 75.85], [64.5, 75.75], [64.25, 75.85], [64.0, 75.75], [63.75, 75.85], [63.5, 75.75], [63.25, 75.85], [63.0, 75.75], [62.75, 75.85], [62.68, 75.82], [62.53, 75.47], [62.0, 75.25], [61.47, 75.47], [61.25, 76.0], [61.47, 76.53], [61.82, 76.68], [61.97, 77.03], [62.32, 77.18]]]]}, "2024-07-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[62.32, 77.18], [62.47, 77.53], [63.0, 77.75], [63.25, 77.65], [63.5, 77.75], [63.75, 77.65], [64.0, 77.75], [64.25, 77.65], [64.5, 77.75], [64.75, 77.65], [65.0, 77.75], [65.25, 77.65], [65.5, 77.75], [65.75, 77.65], [65.82, 77.68], [65.97, 78.03], [66.5, 78.25], [67.0, 78.04], [67.5, 78.25], [67.75, 78.15], [68.0, 78.25], [68.25, 78.15], [68.5, 78.25], [68.75, 78.15], [69.0, 78.25], [69.25, 78.15], [69.32, 78.18], [69.47, 78.53], [70.0, 78.75], [70.25, 78.65], [70.5, 78.75], [70.75, 78.65], [71.0, 78.75], [71.25, 78.65], [71.5, 78.75], [71.75, 78.65], [72.0, 78.75], [72.25, 78.65], [72.5, 78.75], [72.75, 78.65], [73.0, 78.75], [73.25, 78.65], [73.5, 78.75], [73.75, 78.65], [74.0, 78.75], [74.53, 78.53], [74.75, 78.0], [74.65, 77.75], [74.75, 77.5], [74.53, 76.97], [74.18, 76.82], [74.03, 76.47], [73.5, 76.25], [73.25, 76.35], [73.0, 76.25], [72.75, 76.35], [72.5, 76.25], [72.25, 76.35], [72.0, 76.25], [71.47, 76.47], [71.32, 76.82], [71.25, 76.85], [71.0, 76.75], [70.75, 76.85], [70.5, 76.75], [70.25, 76.85], [70.0, 76.75], [69.75, 76.85], [69.5, 76.75], [69.25, 76.85], [69.0, 76.75], [68.75, 76.85], [68.5, 76.75], [68.25, 76.85], [68.0, 76.75], [67.75, 76.85], [67.5, 76.75], [67.07, 76.93], [67.25, 76.5], [67.03, 75.97], [66.5, 75.75], [66.25, 75.85], [66.0, 75.75], [65.75, 75.85], [65.5, 75.75], [65.25, 75.85], [65.0, 75.75], [64.75, 75.85], [64.5, 75.75], [64.25, 75.85], [64.0, 75.75], [63.75, 75.85], [63.5, 75.75], [63.25, 75.85], [63.0, 75.75], [62.75, 75.85], [62.68, 75.82], [62.53, 75.47], [62.0, 75.25], [61.47, 75.47], [61.25, 76.0], [61.47, 76.53], [61.82, 76.68], [61.97, 77.03], [62.32, 77.18]]]]}, "2024-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[62.32, 77.18], [62.47, 77.53], [63.0, 77.75], [63.25, 77.65], [63.5, 77.75], [63.75, 77.65], [64.0, 77.75], [64.25, 77.65], [64.5, 77.75], [64.75, 77.65], [64.82, 77.68], [64.97, 78.03], [65.32, 78.18], [65.47, 78.53], [66.0, 78.75], [66.25, 78.65], [66.5, 78.75], [67.03, 78.53], [67.18, 78.18], [67.25, 78.15], [67.5, 78.25], [67.75, 78.15], [67.82, 78.18], [67.97, 78.53], [68.5, 78.75], [68.75, 78.65], [69.0, 78.75], [69.25, 78.65], [69.5, 78.75], [69.75, 78.65], [70.0, 78.75], [70.25, 78.65], [70.5, 78.75], [70.75, 78.65], [71.0, 78.75], [71.25, 78.65], [71.5, 78.75], [71.75, 78.65], [72.0, 78.75], [72.25, 78.65], [72.5, 78.75], [72.75, 78.65], [73.0, 78.75], [73.25, 78.65], [73.5, 78.75], [73.75, 78.65], [74.0, 78.75], [74.25, 78.65], [74.5, 78.75], [75.03, 78.53], [75.18, 78.18], [75.25, 78.15], [75.5, 78.25], [75.75, 78.15], [76.0, 78.25], [76.53, 78.03], [76.75, 77.5], [76.53, 76.97], [76.18, 76.82], [76.03, 76.47], [75.5, 76.25], [75.25, 76.35], [75.0, 76.25], [74.75, 76.35], [74.5, 76.25], [74.0, 76.46], [73.5, 76.25], [73.25, 76.35], [73.0, 76.25], [72.75, 76.35], [72.5, 76.25], [72.25, 76.35], [72.0, 76.25], [71.75, 76.35], [71.5, 76.25], [71.25, 76.35], [71.0, 76.25], [70.75, 76.35], [70.5, 76.25], [70.25, 76.35], [70.0, 76.25], [69.75, 76.35], [69.5, 76.25], [69.25, 76.35], [69.0, 76.25], [68.57, 76.43], [68.75, 76.0], [68.53, 75.47], [68.0, 75.25], [67.47, 75.47], [67.25, 76.0], [67.47, 76.53], [68.0, 76.75], [67.75, 76.85], [67.5, 76.75], [67.25, 76.85], [67.13, 76.8], [67.25, 76.5], [67.03, 75.97], [66.5, 75.75], [66.25, 75.85], [66.0, 75.75], [65.75, 75.85], [65.5, 75.75], [65.25, 75.85], [65.0, 75.75], [64.75, 75.85], [64.5, 75.75], [64.25, 75.85], [64.0, 75.75], [63.75, 75.85], [63.5, 75.75], [63.25, 75.85], [63.0, 75.75], [62.75, 75.85], [62.68, 75.82], [62.53, 75.47], [62.0, 75.25], [61.47, 75.47], [61.25, 76.0], [61.47, 76.53], [61.82, 76.68], [61.97, 77.03], [62.32, 77.18]], [[68.43, 76.57], [68.32, 76.82], [68.25, 76.85], [68.0, 76.75], [68.43, 76.57]]]]}, "2024-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[63.0, 77.75], [63.25, 77.65], [63.5, 77.75], [63.75, 77.65], [64.0, 77.75], [64.25, 77.65], [64.5, 77.75], [64.75, 77.65], [64.82, 77.68], [64.97, 78.03], [65.32, 78.18], [65.47, 78.53], [66.0, 78.75], [66.25, 78.65], [66.5, 78.75], [67.03, 78.53], [67.18, 78.18], [67.25, 78.15], [67.38, 78.2], [67.25, 78.5], [67.47, 79.03], [67.82, 79.18], [67.97, 79.53], [68.5, 79.75], [68.75, 79.65], [69.0, 79.75], [69.25, 79.65], [69.5, 79.75], [69.75, 79.65], [70.0, 79.75], [70.25, 79.65], [70.5, 79.75], [70.75, 79.65], [71.0, 79.75], [71.25, 79.65], [71.5, 79.75], [71.75, 79.65], [72.0, 79.75], [72.25, 79.65], [72.5, 79.75], [72.75, 79.65], [73.0, 79.75], [73.25, 79.65], [73.5, 79.75], [73.75, 79.65], [74.0, 79.75], [74.53, 79.53], [74.75, 79.0], [74.65, 78.75], [74.68, 78.68], [75.03, 78.53], [75.18, 78.18], [75.25, 78.15], [75.5, 78.25], [75.75, 78.15], [76.0, 78.25], [76.53, 78.03], [76.75, 77.5], [76.53, 76.97], [76.18, 76.82], [76.03, 76.47], [75.5, 76.25], [75.25, 76.35], [75.0, 76.25], [74.75, 76.35], [74.5, 76.25], [74.0, 76.46], [73.5, 76.25], [73.25, 76.35], [73.0, 76.25], [72.75, 76.35], [72.5, 76.25], [72.25, 76.35], [72.0, 76.25], [71.75, 76.35], [71.5, 76.25], [71.25, 76.35], [71.0, 76.25], [70.75, 76.35], [70.5, 76.25], [70.25, 76.35], [70.0, 76.25], [69.75, 76.35], [69.63, 76.3], [69.75, 76.0], [69.53, 75.47], [69.0, 75.25], [68.75, 75.35], [68.5, 75.25], [68.25, 75.35], [68.0, 75.25], [67.75, 75.35], [67.5, 75.25], [67.25, 75.35], [67.0, 75.25], [66.47, 75.47], [66.25, 76.0], [66.43, 76.43], [66.0, 76.25], [65.75, 76.35], [65.5, 76.25], [65.25, 76.35], [65.0, 76.25], [64.75, 76.35], [64.68, 76.32], [64.53, 75.97], [64.0, 75.75], [63.75, 75.85], [63.5, 75.75], [63.25, 75.85], [63.0, 75.75], [62.75, 75.85], [62.5, 75.75], [61.97, 75.97], [61.75, 76.5], [61.97, 77.03], [62.32, 77.18], [62.47, 77.53], [63.0, 77.75]], [[67.25, 76.85], [67.0, 76.75], [67.25, 76.65], [67.5, 76.75], [67.25, 76.85]], [[66.75, 76.85], [66.68, 76.82], [66.57, 76.57], [67.0, 76.75], [66.75, 76.85]], [[67.75, 76.65], [68.0, 76.75], [67.75, 76.85], [67.5, 76.75], [67.75, 76.65]], [[68.25, 76.65], [68.38, 76.7], [68.32, 76.82], [68.25, 76.85], [68.0, 76.75], [68.25, 76.65]]]]}, "2024-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[66.0, 78.75], [66.25, 78.65], [66.5, 78.75], [67.03, 78.53], [67.18, 78.18], [67.25, 78.15], [67.38, 78.2], [67.25, 78.5], [67.47, 79.03], [67.82, 79.18], [67.97, 79.53], [68.5, 79.75], [68.75, 79.65], [69.0, 79.75], [69.25, 79.65], [69.5, 79.75], [69.75, 79.65], [70.0, 79.75], [70.25, 79.65], [70.5, 79.75], [70.75, 79.65], [71.0, 79.75], [71.25, 79.65], [71.5, 79.75], [71.75, 79.65], [72.0, 79.75], [72.25, 79.65], [72.5, 79.75], [72.75, 79.65], [73.0, 79.75], [73.25, 79.65], [73.5, 79.75], [73.75, 79.65], [74.0, 79.75], [74.25, 79.65], [74.5, 79.75], [75.03, 79.53], [75.25, 79.0], [75.04, 78.5], [75.18, 78.18], [75.25, 78.15], [75.5, 78.25], [75.75, 78.15], [76.0, 78.25], [76.53, 78.03], [76.75, 77.5], [76.53, 76.97], [76.18, 76.82], [76.03, 76.47], [75.5, 76.25], [75.25, 76.35], [75.0, 76.25], [74.75, 76.35], [74.5, 76.25], [73.97, 76.47], [73.82, 76.82], [73.75, 76.85], [73.68, 76.82], [73.53, 76.47], [73.0, 76.25], [72.75, 76.35], [72.5, 76.25], [72.25, 76.35], [72.0, 76.25], [71.75, 76.35], [71.5, 76.25], [71.25, 76.35], [71.0, 76.25], [70.75, 76.35], [70.5, 76.25], [70.25, 76.35], [70.0, 76.25], [69.75, 76.35], [69.63, 76.3], [69.75, 76.0], [69.53, 75.47], [69.0, 75.25], [68.75, 75.35], [68.5, 75.25], [68.25, 75.35], [68.0, 75.25], [67.75, 75.35], [67.5, 75.25], [67.25, 75.35], [67.0, 75.25], [66.47, 75.47], [66.25, 76.0], [66.47, 76.53], [67.0, 76.75], [66.75, 76.85], [66.5, 76.75], [66.25, 76.85], [66.0, 76.75], [65.75, 76.85], [65.5, 76.75], [64.97, 76.97], [64.75, 77.5], [64.97, 78.03], [65.32, 78.18], [65.47, 78.53], [66.0, 78.75]], [[67.25, 76.65], [67.5, 76.75], [67.25, 76.85], [67.0, 76.75], [67.25, 76.65]], [[67.75, 76.65], [68.0, 76.75], [67.75, 76.85], [67.5, 76.75], [67.75, 76.65]], [[68.25, 76.65], [68.38, 76.7], [68.32, 76.82], [68.25, 76.85], [68.0, 76.75], [68.25, 76.65]]]]}, "2024-07-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[66.25, 76.0], [66.47, 76.53], [67.0, 76.75], [67.25, 76.65], [67.5, 76.75], [67.75, 76.65], [68.0, 76.75], [68.25, 76.65], [68.5, 76.75], [68.75, 76.65], [69.0, 76.75], [69.53, 76.53], [69.75, 76.0], [69.53, 75.47], [69.0, 75.25], [68.75, 75.35], [68.5, 75.25], [68.25, 75.35], [68.0, 75.25], [67.75, 75.35], [67.5, 75.25], [67.25, 75.35], [67.0, 75.25], [66.47, 75.47], [66.25, 76.0]]], [[[67.47, 79.03], [67.82, 79.18], [67.97, 79.53], [68.5, 79.75], [68.75, 79.65], [69.0, 79.75], [69.25, 79.65], [69.5, 79.75], [69.75, 79.65], [70.0, 79.75], [70.25, 79.65], [70.5, 79.75], [70.75, 79.65], [71.0, 79.75], [71.25, 79.65], [71.5, 79.75], [71.75, 79.65], [72.0, 79.75], [72.25, 79.65], [72.5, 79.75], [72.75, 79.65], [73.0, 79.75], [73.25, 79.65], [73.5, 79.75], [73.75, 79.65], [74.0, 79.75], [74.25, 79.65], [74.5, 79.75], [75.03, 79.53], [75.25, 79.0], [75.04, 78.5], [75.18, 78.18], [75.25, 78.15], [75.5, 78.25], [75.75, 78.15], [76.0, 78.25], [76.53, 78.03], [76.75, 77.5], [76.53, 76.97], [76.18, 76.82], [76.03, 76.47], [75.5, 76.25], [75.25, 76.35], [75.0, 76.25], [74.75, 76.35], [74.5, 76.25], [73.97, 76.47], [73.82, 76.82], [73.75, 76.85], [73.68, 76.82], [73.53, 76.47], [73.0, 76.25], [72.75, 76.35], [72.5, 76.25], [72.25, 76.35], [72.0, 76.25], [71.75, 76.35], [71.5, 76.25], [71.25, 76.35], [71.0, 76.25], [70.75, 76.35], [70.5, 76.25], [69.97, 76.47], [69.82, 76.82], [69.47, 76.97], [69.32, 77.32], [69.25, 77.35], [69.0, 77.25], [68.75, 77.35], [68.5, 77.25], [67.97, 77.47], [67.82, 77.82], [67.47, 77.97], [67.25, 78.5], [67.47, 79.03]]]]}, "2024-07-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[73.47, 78.47], [73.25, 79.0], [73.47, 79.53], [74.0, 79.75], [74.25, 79.65], [74.5, 79.75], [75.03, 79.53], [75.25, 79.0], [75.03, 78.47], [74.5, 78.25], [74.25, 78.35], [74.0, 78.25], [73.47, 78.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.994369553553156}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.464991232250777}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [0.12514252559549277, -0.6346457625934931, -0.3468555578340897, -0.5090493451256748, -0.3002287419877234, -0.25851929165202137, -0.854720962130898, -0.23248096296072163]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-0.06169719397138351, -3.2190334443415622, -3.0223118694015625, -3.0907818108402694, -0.6640091777973112, -0.42516240072728806, -1.560183353037985, -0.24265569202066217]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.541560341890397, -1.8439087863385277, -1.4208595845532057, -1.580105591185342, -1.322970306966748, -1.2179025155694263, -1.8074144428810912, -0.9352130428784164]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.7418791222971208, -2.994369553553156, -2.8374649320688263, -2.9694886234368596, -2.0332486417098607, -1.574561820855081, -2.3866306356585483, -0.9463804192406542]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2095512060695086, -1.179501015856894, -1.266493001866859, -1.4742728748701512, -1.434858391877788, -1.3827820999109863, -2.1316182228241622, -1.2080768923239846]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.298040497904965, -1.3002781372122694, -1.4224422848274911, -1.8642774759363687, -1.7718843304809275, -1.7050014409353667, -3.16445636391838, -1.2111590564981811]}}