{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:40.893368", "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": "2013-Feb-13_to_2013-Feb-17_64.5_65.5"}, "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": 2013020001744}, "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": "February 13 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 17 2013"}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 51579.31963205679}, "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": ["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": ["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": 65.5}, "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": 64.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "64.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 63.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 70.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 65.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 68.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[63.47, 64.97], [63.25, 65.5], [63.47, 66.03], [64.0, 66.25], [64.25, 66.15], [64.5, 66.25], [65.03, 66.03], [65.25, 65.5], [65.03, 64.97], [64.5, 64.75], [64.25, 64.85], [64.0, 64.75], [63.47, 64.97]]]]}, "2013-02-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[63.47, 66.53], [64.0, 66.75], [64.25, 66.65], [64.5, 66.75], [65.03, 66.53], [65.25, 66.0], [65.15, 65.75], [65.25, 65.5], [65.03, 64.97], [64.5, 64.75], [64.25, 64.85], [64.0, 64.75], [63.47, 64.97], [63.25, 65.5], [63.35, 65.75], [63.25, 66.0], [63.47, 66.53]]]]}, "2013-02-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[63.47, 66.53], [64.0, 66.75], [64.25, 66.65], [64.32, 66.68], [64.47, 67.03], [64.82, 67.18], [64.97, 67.53], [65.32, 67.68], [65.47, 68.03], [65.82, 68.18], [65.97, 68.53], [66.5, 68.75], [66.75, 68.65], [66.82, 68.68], [66.97, 69.03], [67.5, 69.25], [67.75, 69.15], [68.0, 69.25], [68.25, 69.15], [68.5, 69.25], [68.75, 69.15], [69.0, 69.25], [69.25, 69.15], [69.5, 69.25], [69.75, 69.15], [70.0, 69.25], [70.53, 69.03], [70.68, 68.68], [71.03, 68.53], [71.25, 68.0], [71.03, 67.47], [70.5, 67.25], [70.25, 67.35], [70.0, 67.25], [69.75, 67.35], [69.68, 67.32], [69.53, 66.97], [69.18, 66.82], [69.03, 66.47], [68.5, 66.25], [68.25, 66.35], [68.0, 66.25], [67.75, 66.35], [67.5, 66.25], [67.25, 66.35], [67.18, 66.32], [67.15, 66.25], [67.25, 66.0], [67.15, 65.75], [67.25, 65.5], [67.03, 64.97], [66.5, 64.75], [66.25, 64.85], [66.0, 64.75], [65.75, 64.85], [65.5, 64.75], [65.0, 64.96], [64.5, 64.75], [64.25, 64.85], [64.0, 64.75], [63.47, 64.97], [63.25, 65.5], [63.35, 65.75], [63.25, 66.0], [63.47, 66.53]]]]}, "2013-02-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[63.25, 66.0], [63.47, 66.53], [64.0, 66.75], [64.25, 66.65], [64.32, 66.68], [64.47, 67.03], [64.82, 67.18], [64.97, 67.53], [65.32, 67.68], [65.47, 68.03], [65.82, 68.18], [65.97, 68.53], [66.5, 68.75], [66.75, 68.65], [66.82, 68.68], [66.97, 69.03], [67.5, 69.25], [67.75, 69.15], [68.0, 69.25], [68.25, 69.15], [68.5, 69.25], [68.75, 69.15], [69.0, 69.25], [69.25, 69.15], [69.5, 69.25], [69.75, 69.15], [70.0, 69.25], [70.53, 69.03], [70.68, 68.68], [71.03, 68.53], [71.25, 68.0], [71.03, 67.47], [70.5, 67.25], [70.25, 67.35], [70.0, 67.25], [69.75, 67.35], [69.68, 67.32], [69.53, 66.97], [69.18, 66.82], [69.03, 66.47], [68.5, 66.25], [68.25, 66.35], [68.0, 66.25], [67.75, 66.35], [67.5, 66.25], [67.25, 66.35], [67.18, 66.32], [67.15, 66.25], [67.25, 66.0], [67.15, 65.75], [67.25, 65.5], [67.03, 64.97], [66.5, 64.75], [66.25, 64.85], [66.0, 64.75], [65.75, 64.85], [65.5, 64.75], [65.0, 64.96], [64.5, 64.75], [63.97, 64.97], [63.82, 65.32], [63.47, 65.47], [63.25, 66.0]]]]}, "2013-02-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[64.25, 66.5], [64.47, 67.03], [64.82, 67.18], [64.97, 67.53], [65.32, 67.68], [65.47, 68.03], [65.82, 68.18], [65.97, 68.53], [66.5, 68.75], [66.75, 68.65], [66.82, 68.68], [66.97, 69.03], [67.5, 69.25], [67.75, 69.15], [68.0, 69.25], [68.25, 69.15], [68.5, 69.25], [68.75, 69.15], [69.0, 69.25], [69.25, 69.15], [69.5, 69.25], [69.75, 69.15], [70.0, 69.25], [70.53, 69.03], [70.68, 68.68], [71.03, 68.53], [71.25, 68.0], [71.03, 67.47], [70.5, 67.25], [70.25, 67.35], [70.0, 67.25], [69.75, 67.35], [69.68, 67.32], [69.53, 66.97], [69.18, 66.82], [69.03, 66.47], [68.5, 66.25], [68.25, 66.35], [68.0, 66.25], [67.75, 66.35], [67.5, 66.25], [67.25, 66.35], [67.18, 66.32], [67.15, 66.25], [67.25, 66.0], [67.15, 65.75], [67.25, 65.5], [67.03, 64.97], [66.5, 64.75], [66.25, 64.85], [66.0, 64.75], [65.75, 64.85], [65.5, 64.75], [64.97, 64.97], [64.75, 65.5], [64.85, 65.75], [64.82, 65.82], [64.47, 65.97], [64.25, 66.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 18.555739568751022}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 13.668704910371808}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-9.243092435905169, -8.63116259560121, -8.88360043869028, -8.147192961344558, -8.831666782932245]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-9.173499229411334, -7.899930115593634, -6.138805506861047, -5.020679134188583, -6.931469441828597]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [12.38240554035859, 12.982668615509652, 13.420737125291232, 14.219603263058058, 13.485156906913293]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [12.44186183220063, 13.656785765408983, 15.565497043540432, 18.555739568751022, 15.531836249109716]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3811498999257723, 1.4499924392141503, 1.4556889766270509, 1.5535755687665143, 1.4955777209082666]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4017885385932976, 1.527940648874263, 1.6250753593007483, 1.8081932186135035, 1.7399622784382474]}}