{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:03.766798", "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": "2014-Aug-11_to_2014-Aug-13_133.5_44.0"}, "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": 2014080000601}, "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": "August 11 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 13 2014"}, "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": 75428.22525562855}, "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.Asia", "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": 44.0}, "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": 133.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "133.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 132.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 137.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 43.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 47.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.35, 44.75], [132.25, 45.0], [132.47, 45.53], [133.0, 45.75], [133.25, 45.65], [133.5, 45.75], [133.75, 45.65], [133.82, 45.68], [133.97, 46.03], [134.32, 46.18], [134.35, 46.25], [134.25, 46.5], [134.47, 47.03], [134.82, 47.18], [134.85, 47.25], [134.75, 47.5], [134.97, 48.03], [135.5, 48.25], [135.75, 48.15], [136.0, 48.25], [136.25, 48.15], [136.5, 48.25], [136.75, 48.15], [137.0, 48.25], [137.25, 48.15], [137.5, 48.25], [138.03, 48.03], [138.25, 47.5], [138.03, 46.97], [137.68, 46.82], [137.65, 46.75], [137.75, 46.5], [137.53, 45.97], [137.18, 45.82], [137.03, 45.47], [136.68, 45.32], [136.53, 44.97], [136.0, 44.75], [135.75, 44.85], [135.68, 44.82], [135.53, 44.47], [135.18, 44.32], [135.03, 43.97], [134.68, 43.82], [134.53, 43.47], [134.18, 43.32], [134.03, 42.97], [133.5, 42.75], [132.97, 42.97], [132.82, 43.32], [132.47, 43.47], [132.25, 44.0], [132.35, 44.25], [132.25, 44.5], [132.35, 44.75]]]]}, "2014-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.35, 44.75], [132.25, 45.0], [132.47, 45.53], [133.0, 45.75], [133.25, 45.65], [133.5, 45.75], [133.75, 45.65], [133.82, 45.68], [133.97, 46.03], [134.32, 46.18], [134.35, 46.25], [134.25, 46.5], [134.47, 47.03], [134.82, 47.18], [134.85, 47.25], [134.75, 47.5], [134.97, 48.03], [135.5, 48.25], [135.75, 48.15], [136.0, 48.25], [136.25, 48.15], [136.5, 48.25], [136.75, 48.15], [137.0, 48.25], [137.25, 48.15], [137.5, 48.25], [138.03, 48.03], [138.25, 47.5], [138.03, 46.97], [137.68, 46.82], [137.65, 46.75], [137.75, 46.5], [137.53, 45.97], [137.18, 45.82], [137.03, 45.47], [136.68, 45.32], [136.53, 44.97], [136.0, 44.75], [135.75, 44.85], [135.68, 44.82], [135.53, 44.47], [135.18, 44.32], [135.03, 43.97], [134.68, 43.82], [134.53, 43.47], [134.18, 43.32], [134.03, 42.97], [133.5, 42.75], [132.97, 42.97], [132.82, 43.32], [132.47, 43.47], [132.25, 44.0], [132.35, 44.25], [132.25, 44.5], [132.35, 44.75]]]]}, "2014-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.35, 44.75], [132.25, 45.0], [132.47, 45.53], [133.0, 45.75], [133.25, 45.65], [133.5, 45.75], [133.75, 45.65], [133.82, 45.68], [133.97, 46.03], [134.32, 46.18], [134.35, 46.25], [134.25, 46.5], [134.47, 47.03], [134.82, 47.18], [134.85, 47.25], [134.75, 47.5], [134.97, 48.03], [135.5, 48.25], [135.75, 48.15], [136.0, 48.25], [136.25, 48.15], [136.5, 48.25], [136.75, 48.15], [137.0, 48.25], [137.25, 48.15], [137.5, 48.25], [138.03, 48.03], [138.25, 47.5], [138.03, 46.97], [137.68, 46.82], [137.65, 46.75], [137.75, 46.5], [137.53, 45.97], [137.18, 45.82], [137.03, 45.47], [136.68, 45.32], [136.53, 44.97], [136.0, 44.75], [135.75, 44.85], [135.68, 44.82], [135.53, 44.47], [135.18, 44.32], [135.03, 43.97], [134.68, 43.82], [134.53, 43.47], [134.18, 43.32], [134.03, 42.97], [133.5, 42.75], [132.97, 42.97], [132.82, 43.32], [132.47, 43.47], [132.25, 44.0], [132.35, 44.25], [132.25, 44.5], [132.35, 44.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.719050966816894}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.762143575660359}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.761896535866583, 14.509814858205061, 15.017737291257276]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [10.942073817706216, 11.663887764566823, 11.751377942983083]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.580126875302012, -4.700782972142565, -4.005520879536501]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.719050966816894, -5.7031000917920665, -5.129357077103805]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.198677738293997, -1.9547744882102844, -1.6777420300588552]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.72193498068587, -2.685882641328383, -2.0754616664387364]}}