{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:52.299063", "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-13_to_2019-Jun-18_66.5_58.5"}, "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": 2019060000452}, "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 13 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 18 2019"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 250165.61215053784}, "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": ["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": 58.5}, "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": 66.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "66.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 56.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 73.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 54.25}, "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": {"2019-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.25, 54.5], [57.47, 55.03], [58.0, 55.25], [58.25, 55.15], [58.5, 55.25], [58.75, 55.15], [58.82, 55.18], [58.97, 55.53], [59.5, 55.75], [60.03, 55.53], [60.18, 55.18], [60.53, 55.03], [60.75, 54.5], [60.53, 53.97], [60.0, 53.75], [59.75, 53.85], [59.5, 53.75], [59.25, 53.85], [59.0, 53.75], [58.75, 53.85], [58.5, 53.75], [58.25, 53.85], [58.0, 53.75], [57.47, 53.97], [57.25, 54.5]]], [[[63.5, 58.75], [63.75, 58.65], [63.88, 58.7], [63.75, 59.0], [63.85, 59.25], [63.82, 59.32], [63.47, 59.47], [63.25, 60.0], [63.47, 60.53], [64.0, 60.75], [64.25, 60.65], [64.32, 60.68], [64.47, 61.03], [65.0, 61.25], [65.53, 61.03], [65.7, 60.63], [66.0, 60.75], [66.25, 60.65], [66.5, 60.75], [67.0, 60.54], [67.5, 60.75], [67.75, 60.65], [68.0, 60.75], [68.25, 60.65], [68.5, 60.75], [68.75, 60.65], [69.0, 60.75], [69.25, 60.65], [69.5, 60.75], [70.03, 60.53], [70.18, 60.18], [70.25, 60.15], [70.5, 60.25], [71.0, 60.04], [71.5, 60.25], [72.0, 60.04], [72.5, 60.25], [72.75, 60.15], [73.0, 60.25], [73.53, 60.03], [73.75, 59.5], [73.65, 59.25], [73.75, 59.0], [73.53, 58.47], [73.18, 58.32], [73.03, 57.97], [72.5, 57.75], [72.25, 57.85], [72.18, 57.82], [72.15, 57.75], [72.25, 57.5], [72.03, 56.97], [71.68, 56.82], [71.53, 56.47], [71.18, 56.32], [71.03, 55.97], [70.5, 55.75], [70.25, 55.85], [70.0, 55.75], [69.75, 55.85], [69.5, 55.75], [69.25, 55.85], [69.0, 55.75], [68.5, 55.96], [68.0, 55.75], [67.47, 55.97], [67.32, 56.32], [67.25, 56.35], [67.0, 56.25], [66.75, 56.35], [66.5, 56.25], [66.25, 56.35], [66.18, 56.32], [66.03, 55.97], [65.5, 55.75], [64.97, 55.97], [64.82, 56.32], [64.5, 56.46], [64.0, 56.25], [63.47, 56.47], [63.32, 56.82], [62.97, 56.97], [62.75, 57.5], [62.85, 57.75], [62.75, 58.0], [62.97, 58.53], [63.5, 58.75]]]]}, "2019-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.25, 54.5], [57.47, 55.03], [58.0, 55.25], [58.25, 55.15], [58.5, 55.25], [58.75, 55.15], [58.82, 55.18], [58.97, 55.53], [59.5, 55.75], [60.03, 55.53], [60.18, 55.18], [60.53, 55.03], [60.75, 54.5], [60.53, 53.97], [60.0, 53.75], [59.75, 53.85], [59.5, 53.75], [59.25, 53.85], [59.0, 53.75], [58.75, 53.85], [58.5, 53.75], [58.25, 53.85], [58.0, 53.75], [57.47, 53.97], [57.25, 54.5]]], [[[63.5, 58.75], [63.75, 58.65], [63.88, 58.7], [63.75, 59.0], [63.85, 59.25], [63.82, 59.32], [63.47, 59.47], [63.25, 60.0], [63.47, 60.53], [64.0, 60.75], [64.25, 60.65], [64.32, 60.68], [64.47, 61.03], [65.0, 61.25], [65.53, 61.03], [65.7, 60.63], [66.0, 60.75], [66.25, 60.65], [66.5, 60.75], [67.0, 60.54], [67.5, 60.75], [67.75, 60.65], [68.0, 60.75], [68.25, 60.65], [68.5, 60.75], [68.75, 60.65], [69.0, 60.75], [69.25, 60.65], [69.5, 60.75], [70.03, 60.53], [70.18, 60.18], [70.25, 60.15], [70.5, 60.25], [71.0, 60.04], [71.5, 60.25], [72.0, 60.04], [72.5, 60.25], [72.75, 60.15], [73.0, 60.25], [73.53, 60.03], [73.75, 59.5], [73.65, 59.25], [73.75, 59.0], [73.53, 58.47], [73.18, 58.32], [73.03, 57.97], [72.5, 57.75], [72.25, 57.85], [72.18, 57.82], [72.15, 57.75], [72.25, 57.5], [72.03, 56.97], [71.68, 56.82], [71.53, 56.47], [71.18, 56.32], [71.03, 55.97], [70.5, 55.75], [70.25, 55.85], [70.0, 55.75], [69.75, 55.85], [69.5, 55.75], [69.25, 55.85], [69.0, 55.75], [68.5, 55.96], [68.0, 55.75], [67.47, 55.97], [67.32, 56.32], [67.25, 56.35], [67.0, 56.25], [66.75, 56.35], [66.5, 56.25], [66.25, 56.35], [66.18, 56.32], [66.03, 55.97], [65.5, 55.75], [64.97, 55.97], [64.82, 56.32], [64.5, 56.46], [64.0, 56.25], [63.47, 56.47], [63.32, 56.82], [62.97, 56.97], [62.75, 57.5], [62.85, 57.75], [62.75, 58.0], [62.97, 58.53], [63.5, 58.75]]]]}, "2019-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.25, 54.5], [57.47, 55.03], [58.0, 55.25], [58.25, 55.15], [58.5, 55.25], [58.75, 55.15], [58.82, 55.18], [58.97, 55.53], [59.5, 55.75], [60.03, 55.53], [60.18, 55.18], [60.53, 55.03], [60.75, 54.5], [60.53, 53.97], [60.0, 53.75], [59.75, 53.85], [59.5, 53.75], [59.25, 53.85], [59.0, 53.75], [58.75, 53.85], [58.5, 53.75], [58.25, 53.85], [58.0, 53.75], [57.47, 53.97], [57.25, 54.5]]], [[[63.5, 58.75], [63.75, 58.65], [63.88, 58.7], [63.75, 59.0], [63.85, 59.25], [63.82, 59.32], [63.47, 59.47], [63.25, 60.0], [63.47, 60.53], [64.0, 60.75], [64.25, 60.65], [64.32, 60.68], [64.47, 61.03], [65.0, 61.25], [65.53, 61.03], [65.7, 60.63], [66.0, 60.75], [66.25, 60.65], [66.5, 60.75], [67.0, 60.54], [67.5, 60.75], [67.75, 60.65], [68.0, 60.75], [68.25, 60.65], [68.5, 60.75], [68.75, 60.65], [69.0, 60.75], [69.25, 60.65], [69.5, 60.75], [70.03, 60.53], [70.18, 60.18], [70.25, 60.15], [70.5, 60.25], [71.0, 60.04], [71.5, 60.25], [72.0, 60.04], [72.5, 60.25], [72.75, 60.15], [73.0, 60.25], [73.53, 60.03], [73.75, 59.5], [73.65, 59.25], [73.75, 59.0], [73.53, 58.47], [73.18, 58.32], [73.03, 57.97], [72.5, 57.75], [72.25, 57.85], [72.18, 57.82], [72.15, 57.75], [72.25, 57.5], [72.03, 56.97], [71.68, 56.82], [71.53, 56.47], [71.18, 56.32], [71.03, 55.97], [70.5, 55.75], [70.25, 55.85], [70.0, 55.75], [69.75, 55.85], [69.5, 55.75], [69.25, 55.85], [69.0, 55.75], [68.5, 55.96], [68.0, 55.75], [67.47, 55.97], [67.32, 56.32], [67.25, 56.35], [67.0, 56.25], [66.75, 56.35], [66.5, 56.25], [66.25, 56.35], [66.18, 56.32], [66.03, 55.97], [65.5, 55.75], [64.97, 55.97], [64.82, 56.32], [64.5, 56.46], [64.0, 56.25], [63.47, 56.47], [63.32, 56.82], [62.97, 56.97], [62.75, 57.5], [62.85, 57.75], [62.75, 58.0], [62.97, 58.53], [63.5, 58.75]]]]}, "2019-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.32, 57.18], [57.47, 57.53], [57.82, 57.68], [57.97, 58.03], [58.5, 58.25], [58.75, 58.15], [59.0, 58.25], [59.53, 58.03], [59.68, 57.68], [59.75, 57.65], [60.0, 57.75], [60.53, 57.53], [60.7, 57.13], [60.82, 57.18], [60.97, 57.53], [61.5, 57.75], [61.75, 57.65], [62.0, 57.75], [62.25, 57.65], [62.5, 57.75], [62.75, 57.65], [62.82, 57.68], [62.85, 57.75], [62.75, 58.0], [62.97, 58.53], [63.5, 58.75], [63.75, 58.65], [63.88, 58.7], [63.75, 59.0], [63.85, 59.25], [63.82, 59.32], [63.47, 59.47], [63.25, 60.0], [63.47, 60.53], [64.0, 60.75], [64.25, 60.65], [64.32, 60.68], [64.47, 61.03], [65.0, 61.25], [65.53, 61.03], [65.7, 60.63], [66.0, 60.75], [66.25, 60.65], [66.5, 60.75], [67.0, 60.54], [67.5, 60.75], [67.75, 60.65], [68.0, 60.75], [68.53, 60.53], [68.75, 60.0], [68.54, 59.5], [68.75, 59.0], [68.65, 58.75], [68.75, 58.5], [68.65, 58.25], [68.75, 58.0], [68.53, 57.47], [68.0, 57.25], [67.75, 57.35], [67.68, 57.32], [67.53, 56.97], [67.0, 56.75], [66.75, 56.85], [66.68, 56.82], [66.53, 56.47], [66.0, 56.25], [65.75, 56.35], [65.5, 56.25], [65.25, 56.35], [65.0, 56.25], [64.75, 56.35], [64.5, 56.25], [64.25, 56.35], [64.0, 56.25], [63.7, 56.38], [63.53, 55.97], [63.0, 55.75], [62.75, 55.85], [62.5, 55.75], [62.25, 55.85], [62.0, 55.75], [61.75, 55.85], [61.5, 55.75], [61.25, 55.85], [61.18, 55.82], [61.15, 55.75], [61.25, 55.5], [61.03, 54.97], [60.5, 54.75], [60.25, 54.85], [60.0, 54.75], [59.47, 54.97], [59.32, 55.32], [59.25, 55.35], [59.0, 55.25], [58.75, 55.35], [58.5, 55.25], [58.25, 55.35], [58.0, 55.25], [57.75, 55.35], [57.5, 55.25], [57.25, 55.35], [57.0, 55.25], [56.47, 55.47], [56.25, 56.0], [56.47, 56.53], [56.82, 56.68], [56.97, 57.03], [57.32, 57.18]]]]}, "2019-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.32, 57.18], [57.47, 57.53], [57.82, 57.68], [57.97, 58.03], [58.5, 58.25], [58.75, 58.15], [59.0, 58.25], [59.53, 58.03], [59.68, 57.68], [59.75, 57.65], [60.0, 57.75], [60.53, 57.53], [60.7, 57.13], [60.82, 57.18], [60.97, 57.53], [61.5, 57.75], [61.75, 57.65], [62.0, 57.75], [62.25, 57.65], [62.5, 57.75], [62.75, 57.65], [62.82, 57.68], [62.85, 57.75], [62.75, 58.0], [62.97, 58.53], [63.5, 58.75], [63.75, 58.65], [63.88, 58.7], [63.75, 59.0], [63.97, 59.53], [64.5, 59.75], [65.03, 59.53], [65.25, 59.0], [65.07, 58.57], [65.32, 58.68], [65.47, 59.03], [66.0, 59.25], [66.25, 59.15], [66.5, 59.25], [67.03, 59.03], [67.18, 58.68], [67.25, 58.65], [67.32, 58.68], [67.47, 59.03], [68.0, 59.25], [68.53, 59.03], [68.75, 58.5], [68.65, 58.25], [68.75, 58.0], [68.53, 57.47], [68.0, 57.25], [67.75, 57.35], [67.68, 57.32], [67.53, 56.97], [67.0, 56.75], [66.75, 56.85], [66.68, 56.82], [66.53, 56.47], [66.0, 56.25], [65.75, 56.35], [65.5, 56.25], [65.25, 56.35], [65.0, 56.25], [64.75, 56.35], [64.5, 56.25], [63.97, 56.47], [63.82, 56.82], [63.75, 56.85], [63.68, 56.82], [63.65, 56.75], [63.75, 56.5], [63.53, 55.97], [63.0, 55.75], [62.75, 55.85], [62.5, 55.75], [62.25, 55.85], [62.0, 55.75], [61.75, 55.85], [61.5, 55.75], [61.25, 55.85], [61.18, 55.82], [61.15, 55.75], [61.25, 55.5], [61.03, 54.97], [60.5, 54.75], [60.25, 54.85], [60.0, 54.75], [59.47, 54.97], [59.32, 55.32], [59.25, 55.35], [59.0, 55.25], [58.75, 55.35], [58.5, 55.25], [58.25, 55.35], [58.0, 55.25], [57.75, 55.35], [57.5, 55.25], [57.25, 55.35], [57.0, 55.25], [56.47, 55.47], [56.25, 56.0], [56.47, 56.53], [56.82, 56.68], [56.97, 57.03], [57.32, 57.18]], [[64.82, 58.18], [64.93, 58.43], [64.63, 58.3], [64.7, 58.13], [64.82, 58.18]]]]}, "2019-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.47, 57.53], [57.82, 57.68], [57.97, 58.03], [58.5, 58.25], [58.75, 58.15], [59.0, 58.25], [59.53, 58.03], [59.68, 57.68], [59.75, 57.65], [60.0, 57.75], [60.53, 57.53], [60.7, 57.13], [60.82, 57.18], [60.97, 57.53], [61.5, 57.75], [61.75, 57.65], [62.0, 57.75], [62.25, 57.65], [62.5, 57.75], [62.75, 57.65], [63.0, 57.75], [63.53, 57.53], [63.75, 57.0], [63.65, 56.75], [63.75, 56.5], [63.53, 55.97], [63.0, 55.75], [62.75, 55.85], [62.5, 55.75], [62.25, 55.85], [62.0, 55.75], [61.75, 55.85], [61.5, 55.75], [61.25, 55.85], [61.18, 55.82], [61.15, 55.75], [61.25, 55.5], [61.03, 54.97], [60.5, 54.75], [60.25, 54.85], [60.0, 54.75], [59.47, 54.97], [59.32, 55.32], [59.25, 55.35], [59.0, 55.25], [58.75, 55.35], [58.5, 55.25], [58.25, 55.35], [58.0, 55.25], [57.75, 55.35], [57.5, 55.25], [57.25, 55.35], [57.0, 55.25], [56.47, 55.47], [56.25, 56.0], [56.47, 56.53], [56.82, 56.68], [56.97, 57.03], [57.32, 57.18], [57.47, 57.53]]], [[[64.47, 58.03], [64.82, 58.18], [64.97, 58.53], [65.5, 58.75], [65.75, 58.65], [65.82, 58.68], [65.97, 59.03], [66.5, 59.25], [67.03, 59.03], [67.18, 58.68], [67.25, 58.65], [67.32, 58.68], [67.47, 59.03], [68.0, 59.25], [68.53, 59.03], [68.75, 58.5], [68.65, 58.25], [68.75, 58.0], [68.53, 57.47], [68.0, 57.25], [67.75, 57.35], [67.68, 57.32], [67.53, 56.97], [67.0, 56.75], [66.75, 56.85], [66.68, 56.82], [66.53, 56.47], [66.0, 56.25], [65.75, 56.35], [65.5, 56.25], [65.25, 56.35], [65.0, 56.25], [64.75, 56.35], [64.5, 56.25], [63.97, 56.47], [63.75, 57.0], [63.97, 57.53], [64.32, 57.68], [64.47, 58.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.851223922573695}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.8406048452056405}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.705298363198779, 7.492148074951615, 9.774378410153247, 9.924639997201666, 10.988853019185626, 11.566455096864217]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.819013107411763, 5.144438181451278, 7.392346372417194, 8.247280608110827, 8.813389076758085, 9.533709578011894]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.014825021289144, -8.40778307721486, -6.354186402620907, -6.442899724122551, -5.833437405669038, -5.596954198857828]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.240935626710893, -9.851223922573695, -7.153834118972782, -7.19060164726784, -6.791971678180062, -6.480188482338406]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5199058207496343, -1.8447541468863784, -1.4233799965055505, -1.5053788684787597, -1.4033075846604768, -1.3667076981033381]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7475383032128016, -2.092360524890246, -1.6289137865574235, -1.7219145735411856, -1.6891970559953957, -1.6055751065330395]}}