{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:12:54.952721", "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": "2018-Jun-14_to_2018-Jun-18_57.0_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": 2018060000558}, "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 14 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 18 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 252179.3507782859}, "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": 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": 57.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "57.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 53.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 67.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 52.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 60.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.85, 57.25], [52.75, 57.5], [52.85, 57.75], [52.75, 58.0], [52.85, 58.25], [52.75, 58.5], [52.85, 58.75], [52.75, 59.0], [52.97, 59.53], [53.32, 59.68], [53.47, 60.03], [53.82, 60.18], [53.97, 60.53], [54.5, 60.75], [54.75, 60.65], [54.82, 60.68], [54.97, 61.03], [55.5, 61.25], [55.75, 61.15], [56.0, 61.25], [56.25, 61.15], [56.5, 61.25], [56.75, 61.15], [57.0, 61.25], [57.53, 61.03], [57.68, 60.68], [58.03, 60.53], [58.25, 60.0], [58.03, 59.47], [57.5, 59.25], [57.25, 59.35], [57.18, 59.32], [57.03, 58.97], [56.5, 58.75], [56.0, 58.96], [55.68, 58.82], [55.53, 58.47], [55.18, 58.32], [55.03, 57.97], [54.5, 57.75], [55.03, 57.53], [55.25, 57.0], [55.03, 56.47], [54.68, 56.32], [54.53, 55.97], [54.0, 55.75], [53.75, 55.85], [53.5, 55.75], [52.97, 55.97], [52.75, 56.5], [52.85, 56.75], [52.75, 57.0], [52.85, 57.25]], [[54.25, 57.85], [54.18, 57.82], [54.15, 57.75], [54.18, 57.68], [54.25, 57.65], [54.5, 57.75], [54.25, 57.85]]]]}, "2018-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.75, 57.5], [52.85, 57.75], [52.75, 58.0], [52.85, 58.25], [52.75, 58.5], [52.85, 58.75], [52.75, 59.0], [52.97, 59.53], [53.32, 59.68], [53.47, 60.03], [53.82, 60.18], [53.97, 60.53], [54.5, 60.75], [54.75, 60.65], [54.82, 60.68], [54.97, 61.03], [55.5, 61.25], [55.75, 61.15], [56.0, 61.25], [56.25, 61.15], [56.5, 61.25], [56.75, 61.15], [57.0, 61.25], [57.53, 61.03], [57.68, 60.68], [58.03, 60.53], [58.25, 60.0], [58.03, 59.47], [57.63, 59.3], [57.68, 59.18], [58.03, 59.03], [58.25, 58.5], [58.15, 58.25], [58.25, 58.0], [58.15, 57.75], [58.18, 57.68], [58.53, 57.53], [58.75, 57.0], [58.63, 56.7], [58.75, 56.65], [59.0, 56.75], [59.25, 56.65], [59.5, 56.75], [59.75, 56.65], [60.0, 56.75], [60.25, 56.65], [60.5, 56.75], [61.03, 56.53], [61.25, 56.0], [61.15, 55.75], [61.18, 55.68], [61.25, 55.65], [61.5, 55.75], [61.75, 55.65], [62.0, 55.75], [62.53, 55.53], [62.75, 55.0], [62.53, 54.47], [62.0, 54.25], [61.75, 54.35], [61.5, 54.25], [61.25, 54.35], [61.0, 54.25], [60.75, 54.35], [60.68, 54.32], [60.53, 53.97], [60.18, 53.82], [60.03, 53.47], [59.68, 53.32], [59.53, 52.97], [59.18, 52.82], [59.03, 52.47], [58.5, 52.25], [58.25, 52.35], [58.0, 52.25], [57.75, 52.35], [57.5, 52.25], [57.25, 52.35], [57.0, 52.25], [56.75, 52.35], [56.5, 52.25], [55.97, 52.47], [55.75, 53.0], [55.85, 53.25], [55.82, 53.32], [55.47, 53.47], [55.25, 54.0], [55.35, 54.25], [55.25, 54.5], [55.35, 54.75], [55.25, 55.0], [55.47, 55.53], [55.82, 55.68], [55.97, 56.03], [56.32, 56.18], [56.35, 56.25], [56.25, 56.5], [56.47, 57.03], [56.82, 57.18], [56.85, 57.25], [56.82, 57.32], [56.75, 57.35], [56.5, 57.25], [55.97, 57.47], [55.82, 57.82], [55.47, 57.97], [55.3, 58.38], [55.18, 58.32], [55.03, 57.97], [54.5, 57.75], [55.03, 57.53], [55.25, 57.0], [55.03, 56.47], [54.68, 56.32], [54.53, 55.97], [54.0, 55.75], [53.75, 55.85], [53.5, 55.75], [52.97, 55.97], [52.75, 56.5], [52.85, 56.75], [52.75, 57.0], [52.85, 57.25], [52.75, 57.5]], [[54.25, 57.85], [54.18, 57.82], [54.15, 57.75], [54.18, 57.68], [54.25, 57.65], [54.5, 57.75], [54.25, 57.85]]], [[[62.47, 56.47], [62.25, 57.0], [62.47, 57.53], [63.0, 57.75], [63.53, 57.53], [63.75, 57.0], [63.53, 56.47], [63.0, 56.25], [62.47, 56.47]]]]}, "2018-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.85, 57.25], [52.75, 57.5], [52.85, 57.75], [52.75, 58.0], [52.85, 58.25], [52.75, 58.5], [52.85, 58.75], [52.75, 59.0], [52.97, 59.53], [53.32, 59.68], [53.47, 60.03], [53.82, 60.18], [53.97, 60.53], [54.5, 60.75], [54.75, 60.65], [54.82, 60.68], [54.97, 61.03], [55.5, 61.25], [55.75, 61.15], [56.0, 61.25], [56.25, 61.15], [56.5, 61.25], [56.75, 61.15], [57.0, 61.25], [57.53, 61.03], [57.68, 60.68], [58.03, 60.53], [58.25, 60.0], [58.03, 59.47], [57.63, 59.3], [57.68, 59.18], [58.03, 59.03], [58.25, 58.5], [58.15, 58.25], [58.25, 58.0], [58.15, 57.75], [58.18, 57.68], [58.53, 57.53], [58.75, 57.0], [58.63, 56.7], [58.75, 56.65], [59.0, 56.75], [59.25, 56.65], [59.5, 56.75], [59.75, 56.65], [60.0, 56.75], [60.25, 56.65], [60.5, 56.75], [61.03, 56.53], [61.25, 56.0], [61.15, 55.75], [61.18, 55.68], [61.25, 55.65], [61.5, 55.75], [61.75, 55.65], [61.88, 55.7], [61.75, 56.0], [61.85, 56.25], [61.75, 56.5], [61.97, 57.03], [62.32, 57.18], [62.47, 57.53], [63.0, 57.75], [63.53, 57.53], [63.75, 57.0], [63.63, 56.7], [63.75, 56.65], [64.0, 56.75], [64.25, 56.65], [64.5, 56.75], [65.03, 56.53], [65.18, 56.18], [65.25, 56.15], [65.32, 56.18], [65.47, 56.53], [65.82, 56.68], [65.97, 57.03], [66.32, 57.18], [66.47, 57.53], [67.0, 57.75], [67.25, 57.65], [67.5, 57.75], [68.03, 57.53], [68.25, 57.0], [68.15, 56.75], [68.25, 56.5], [68.03, 55.97], [67.68, 55.82], [67.65, 55.75], [67.75, 55.5], [67.53, 54.97], [67.0, 54.75], [66.75, 54.85], [66.68, 54.82], [66.53, 54.47], [66.18, 54.32], [66.15, 54.25], [66.25, 54.0], [66.15, 53.75], [66.25, 53.5], [66.03, 52.97], [65.5, 52.75], [65.25, 52.85], [65.0, 52.75], [64.5, 52.96], [64.0, 52.75], [63.75, 52.85], [63.5, 52.75], [63.25, 52.85], [63.0, 52.75], [62.75, 52.85], [62.5, 52.75], [61.97, 52.97], [61.82, 53.32], [61.47, 53.47], [61.25, 54.0], [61.38, 54.3], [61.25, 54.35], [61.0, 54.25], [60.75, 54.35], [60.68, 54.32], [60.53, 53.97], [60.18, 53.82], [60.03, 53.47], [59.68, 53.32], [59.53, 52.97], [59.18, 52.82], [59.03, 52.47], [58.5, 52.25], [58.25, 52.35], [58.0, 52.25], [57.75, 52.35], [57.5, 52.25], [57.25, 52.35], [57.0, 52.25], [56.75, 52.35], [56.5, 52.25], [55.97, 52.47], [55.75, 53.0], [55.85, 53.25], [55.82, 53.32], [55.47, 53.47], [55.25, 54.0], [55.35, 54.25], [55.25, 54.5], [55.35, 54.75], [55.25, 55.0], [55.47, 55.53], [55.82, 55.68], [55.97, 56.03], [56.32, 56.18], [56.35, 56.25], [56.25, 56.5], [56.47, 57.03], [56.82, 57.18], [56.85, 57.25], [56.82, 57.32], [56.75, 57.35], [56.5, 57.25], [55.97, 57.47], [55.82, 57.82], [55.47, 57.97], [55.3, 58.38], [55.18, 58.32], [55.03, 57.97], [54.5, 57.75], [55.03, 57.53], [55.25, 57.0], [55.03, 56.47], [54.68, 56.32], [54.53, 55.97], [54.0, 55.75], [53.75, 55.85], [53.5, 55.75], [52.97, 55.97], [52.75, 56.5], [52.85, 56.75], [52.75, 57.0], [52.85, 57.25]], [[54.25, 57.85], [54.18, 57.82], [54.15, 57.75], [54.18, 57.68], [54.25, 57.65], [54.5, 57.75], [54.25, 57.85]]]]}, "2018-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.35, 54.75], [55.25, 55.0], [55.47, 55.53], [55.82, 55.68], [55.97, 56.03], [56.32, 56.18], [56.35, 56.25], [56.25, 56.5], [56.47, 57.03], [56.82, 57.18], [56.85, 57.25], [56.82, 57.32], [56.75, 57.35], [56.5, 57.25], [55.97, 57.47], [55.82, 57.82], [55.47, 57.97], [55.25, 58.5], [55.47, 59.03], [55.82, 59.18], [55.97, 59.53], [56.5, 59.75], [56.75, 59.65], [57.0, 59.75], [57.53, 59.53], [57.68, 59.18], [58.03, 59.03], [58.25, 58.5], [58.15, 58.25], [58.25, 58.0], [58.15, 57.75], [58.18, 57.68], [58.53, 57.53], [58.75, 57.0], [58.63, 56.7], [58.75, 56.65], [59.0, 56.75], [59.25, 56.65], [59.5, 56.75], [59.75, 56.65], [60.0, 56.75], [60.25, 56.65], [60.5, 56.75], [61.03, 56.53], [61.25, 56.0], [61.15, 55.75], [61.18, 55.68], [61.25, 55.65], [61.5, 55.75], [61.75, 55.65], [61.88, 55.7], [61.75, 56.0], [61.85, 56.25], [61.75, 56.5], [61.97, 57.03], [62.32, 57.18], [62.47, 57.53], [63.0, 57.75], [63.53, 57.53], [63.75, 57.0], [63.63, 56.7], [63.75, 56.65], [64.0, 56.75], [64.25, 56.65], [64.5, 56.75], [65.03, 56.53], [65.18, 56.18], [65.25, 56.15], [65.32, 56.18], [65.47, 56.53], [65.82, 56.68], [65.97, 57.03], [66.32, 57.18], [66.47, 57.53], [67.0, 57.75], [67.25, 57.65], [67.5, 57.75], [68.03, 57.53], [68.25, 57.0], [68.15, 56.75], [68.25, 56.5], [68.03, 55.97], [67.68, 55.82], [67.65, 55.75], [67.75, 55.5], [67.53, 54.97], [67.0, 54.75], [66.75, 54.85], [66.68, 54.82], [66.53, 54.47], [66.18, 54.32], [66.15, 54.25], [66.25, 54.0], [66.15, 53.75], [66.25, 53.5], [66.03, 52.97], [65.5, 52.75], [65.25, 52.85], [65.0, 52.75], [64.5, 52.96], [64.0, 52.75], [63.75, 52.85], [63.5, 52.75], [63.25, 52.85], [63.0, 52.75], [62.75, 52.85], [62.5, 52.75], [61.97, 52.97], [61.82, 53.32], [61.47, 53.47], [61.25, 54.0], [61.38, 54.3], [61.25, 54.35], [61.0, 54.25], [60.75, 54.35], [60.68, 54.32], [60.53, 53.97], [60.18, 53.82], [60.03, 53.47], [59.68, 53.32], [59.53, 52.97], [59.18, 52.82], [59.03, 52.47], [58.5, 52.25], [58.25, 52.35], [58.0, 52.25], [57.75, 52.35], [57.5, 52.25], [57.25, 52.35], [57.0, 52.25], [56.75, 52.35], [56.5, 52.25], [55.97, 52.47], [55.75, 53.0], [55.85, 53.25], [55.82, 53.32], [55.47, 53.47], [55.25, 54.0], [55.35, 54.25], [55.25, 54.5], [55.35, 54.75]]]]}, "2018-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[61.25, 54.0], [61.47, 54.53], [61.82, 54.68], [61.85, 54.75], [61.75, 55.0], [61.96, 55.5], [61.75, 56.0], [61.85, 56.25], [61.75, 56.5], [61.97, 57.03], [62.5, 57.25], [63.03, 57.03], [63.18, 56.68], [63.25, 56.65], [63.5, 56.75], [63.75, 56.65], [64.0, 56.75], [64.25, 56.65], [64.5, 56.75], [65.03, 56.53], [65.18, 56.18], [65.25, 56.15], [65.32, 56.18], [65.47, 56.53], [65.82, 56.68], [65.97, 57.03], [66.32, 57.18], [66.47, 57.53], [67.0, 57.75], [67.25, 57.65], [67.5, 57.75], [68.03, 57.53], [68.25, 57.0], [68.15, 56.75], [68.25, 56.5], [68.03, 55.97], [67.68, 55.82], [67.65, 55.75], [67.75, 55.5], [67.53, 54.97], [67.0, 54.75], [66.75, 54.85], [66.68, 54.82], [66.53, 54.47], [66.18, 54.32], [66.15, 54.25], [66.25, 54.0], [66.15, 53.75], [66.25, 53.5], [66.03, 52.97], [65.5, 52.75], [65.25, 52.85], [65.0, 52.75], [64.5, 52.96], [64.0, 52.75], [63.75, 52.85], [63.5, 52.75], [63.25, 52.85], [63.0, 52.75], [62.75, 52.85], [62.5, 52.75], [61.97, 52.97], [61.82, 53.32], [61.47, 53.47], [61.25, 54.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.614096613204708}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.589081561888584}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.224209176406816, 9.475561562413532, 10.155142947835884, 10.848375855605866, 12.905431125592315]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [8.082775923666077, 4.642859850278228, 7.075767975973406, 7.46445317284298, 10.343896570060565]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.956505873926223, -6.429479613399819, -6.819177203064754, -6.7757112161205475, -6.180174836776684]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.642257413748268, -9.614096613204708, -8.941052612077556, -8.661656947245262, -7.233126332898962]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.418699152133795, -1.5711595078681186, -1.6478988124569949, -1.6383333792113526, -1.444517117186977]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.533505387326914, -2.319016391240304, -2.0393150439430263, -2.0706465005080115, -1.715163775827752]}}