{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:28.007801", "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": "2017-Jul-19_to_2017-Jul-21_134.0_52.5"}, "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": 2017070000773}, "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": "July 19 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 21 2017"}, "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": 59074.58575275149}, "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-Far-East"]}, "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": 52.5}, "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": 134.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "134.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 130.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 134.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 50.25}, "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": {"2017-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.47, 52.03], [130.82, 52.18], [130.97, 52.53], [131.32, 52.68], [131.47, 53.03], [132.0, 53.25], [132.25, 53.15], [132.32, 53.18], [132.47, 53.53], [133.0, 53.75], [133.25, 53.65], [133.32, 53.68], [133.47, 54.03], [134.0, 54.25], [134.53, 54.03], [134.68, 53.68], [135.03, 53.53], [135.25, 53.0], [135.15, 52.75], [135.25, 52.5], [135.15, 52.25], [135.25, 52.0], [135.03, 51.47], [134.68, 51.32], [134.54, 51.0], [134.75, 50.5], [134.53, 49.97], [134.0, 49.75], [133.75, 49.85], [133.5, 49.75], [132.97, 49.97], [132.75, 50.5], [132.85, 50.75], [132.82, 50.82], [132.75, 50.85], [132.68, 50.82], [132.53, 50.47], [132.0, 50.25], [131.75, 50.35], [131.5, 50.25], [131.25, 50.35], [131.0, 50.25], [130.47, 50.47], [130.25, 51.0], [130.35, 51.25], [130.25, 51.5], [130.47, 52.03]]]]}, "2017-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.47, 52.03], [130.82, 52.18], [130.97, 52.53], [131.32, 52.68], [131.47, 53.03], [132.0, 53.25], [132.25, 53.15], [132.32, 53.18], [132.47, 53.53], [133.0, 53.75], [133.25, 53.65], [133.32, 53.68], [133.47, 54.03], [134.0, 54.25], [134.53, 54.03], [134.68, 53.68], [135.03, 53.53], [135.25, 53.0], [135.15, 52.75], [135.25, 52.5], [135.15, 52.25], [135.25, 52.0], [135.03, 51.47], [134.68, 51.32], [134.54, 51.0], [134.75, 50.5], [134.53, 49.97], [134.0, 49.75], [133.75, 49.85], [133.5, 49.75], [132.97, 49.97], [132.75, 50.5], [132.85, 50.75], [132.82, 50.82], [132.75, 50.85], [132.68, 50.82], [132.53, 50.47], [132.0, 50.25], [131.75, 50.35], [131.5, 50.25], [131.25, 50.35], [131.0, 50.25], [130.47, 50.47], [130.25, 51.0], [130.35, 51.25], [130.25, 51.5], [130.47, 52.03]]]]}, "2017-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.47, 52.03], [130.82, 52.18], [130.97, 52.53], [131.32, 52.68], [131.47, 53.03], [132.0, 53.25], [132.25, 53.15], [132.32, 53.18], [132.47, 53.53], [133.0, 53.75], [133.25, 53.65], [133.32, 53.68], [133.47, 54.03], [134.0, 54.25], [134.53, 54.03], [134.68, 53.68], [135.03, 53.53], [135.25, 53.0], [135.15, 52.75], [135.25, 52.5], [135.15, 52.25], [135.25, 52.0], [135.03, 51.47], [134.68, 51.32], [134.54, 51.0], [134.75, 50.5], [134.53, 49.97], [134.0, 49.75], [133.75, 49.85], [133.5, 49.75], [132.97, 49.97], [132.75, 50.5], [132.85, 50.75], [132.82, 50.82], [132.75, 50.85], [132.68, 50.82], [132.53, 50.47], [132.0, 50.25], [131.75, 50.35], [131.5, 50.25], [131.25, 50.35], [131.0, 50.25], [130.47, 50.47], [130.25, 51.0], [130.35, 51.25], [130.25, 51.5], [130.47, 52.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.322929207758193}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.822548905139026}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.409993062678552, 12.607866908281835, 12.673416977659429]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.11737455089866, 8.437696842709727, 8.331804721114679]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.105193348008241, -4.795977796926162, -4.566475570482675]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.322929207758193, -6.402292987614146, -5.838008770892998]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.0611363515402967, -1.900844056913488, -1.7551276495870485]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.9085057545633406, -2.394857435795472, -2.153487080752099]}}