{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:43:49.588115", "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": "2010-Jan-06_to_2010-Jan-10_56.0_45.5"}, "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": 2010010000240}, "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": "January 06 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 10 2010"}, "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": 215659.62230403486}, "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", "Uzbekistan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Europe", "W.C.Asia", "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": 45.5}, "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": 56.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "56.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 52.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 64.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 44.25}, "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": {"2010-01-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.75, 47.5], [51.97, 48.03], [52.5, 48.25], [52.75, 48.15], [53.0, 48.25], [53.25, 48.15], [53.5, 48.25], [53.75, 48.15], [54.0, 48.25], [54.5, 48.04], [55.0, 48.25], [55.25, 48.15], [55.5, 48.25], [56.03, 48.03], [56.18, 47.68], [56.25, 47.65], [56.5, 47.75], [57.03, 47.53], [57.18, 47.18], [57.25, 47.15], [57.5, 47.25], [58.03, 47.03], [58.18, 46.68], [58.53, 46.53], [58.68, 46.18], [59.03, 46.03], [59.25, 45.5], [59.03, 44.97], [58.68, 44.82], [58.53, 44.47], [58.0, 44.25], [57.75, 44.35], [57.68, 44.32], [57.53, 43.97], [57.0, 43.75], [56.75, 43.85], [56.5, 43.75], [55.97, 43.97], [55.82, 44.32], [55.75, 44.35], [55.5, 44.25], [55.25, 44.35], [55.0, 44.25], [54.47, 44.47], [54.32, 44.82], [54.25, 44.85], [54.0, 44.75], [53.47, 44.97], [53.32, 45.32], [52.97, 45.47], [52.82, 45.82], [52.47, 45.97], [52.25, 46.5], [52.35, 46.75], [52.32, 46.82], [51.97, 46.97], [51.75, 47.5]]]]}, "2010-01-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.75, 47.5], [51.97, 48.03], [52.5, 48.25], [52.75, 48.15], [53.0, 48.25], [53.25, 48.15], [53.5, 48.25], [53.75, 48.15], [54.0, 48.25], [54.5, 48.04], [55.0, 48.25], [55.25, 48.15], [55.5, 48.25], [55.75, 48.15], [56.0, 48.25], [56.53, 48.03], [56.68, 47.68], [56.75, 47.65], [57.0, 47.75], [57.25, 47.65], [57.5, 47.75], [57.75, 47.65], [58.0, 47.75], [58.25, 47.65], [58.5, 47.75], [59.0, 47.54], [59.32, 47.68], [59.47, 48.03], [60.0, 48.25], [60.25, 48.15], [60.5, 48.25], [60.75, 48.15], [61.0, 48.25], [61.25, 48.15], [61.5, 48.25], [61.75, 48.15], [62.0, 48.25], [62.25, 48.15], [62.5, 48.25], [62.75, 48.15], [63.0, 48.25], [63.25, 48.15], [63.5, 48.25], [64.03, 48.03], [64.18, 47.68], [64.53, 47.53], [64.75, 47.0], [64.53, 46.47], [64.18, 46.32], [64.03, 45.97], [63.5, 45.75], [63.25, 45.85], [63.0, 45.75], [62.75, 45.85], [62.68, 45.82], [62.53, 45.47], [62.0, 45.25], [61.75, 45.35], [61.5, 45.25], [60.97, 45.47], [60.82, 45.82], [60.5, 45.96], [60.0, 45.75], [59.75, 45.85], [59.5, 45.75], [59.25, 45.85], [59.18, 45.82], [59.15, 45.75], [59.25, 45.5], [59.03, 44.97], [58.68, 44.82], [58.53, 44.47], [58.0, 44.25], [57.75, 44.35], [57.68, 44.32], [57.53, 43.97], [57.0, 43.75], [56.75, 43.85], [56.5, 43.75], [56.25, 43.85], [56.0, 43.75], [55.75, 43.85], [55.5, 43.75], [55.25, 43.85], [55.0, 43.75], [54.75, 43.85], [54.5, 43.75], [53.97, 43.97], [53.82, 44.32], [53.47, 44.47], [53.25, 45.0], [53.35, 45.25], [53.32, 45.32], [52.97, 45.47], [52.82, 45.82], [52.47, 45.97], [52.25, 46.5], [52.35, 46.75], [52.32, 46.82], [51.97, 46.97], [51.75, 47.5]]]]}, "2010-01-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.75, 47.5], [51.97, 48.03], [52.5, 48.25], [52.75, 48.15], [53.0, 48.25], [53.25, 48.15], [53.5, 48.25], [53.75, 48.15], [54.0, 48.25], [54.5, 48.04], [55.0, 48.25], [55.25, 48.15], [55.5, 48.25], [55.75, 48.15], [56.0, 48.25], [56.53, 48.03], [56.68, 47.68], [56.75, 47.65], [57.0, 47.75], [57.25, 47.65], [57.5, 47.75], [57.75, 47.65], [58.0, 47.75], [58.25, 47.65], [58.5, 47.75], [59.0, 47.54], [59.32, 47.68], [59.47, 48.03], [60.0, 48.25], [60.25, 48.15], [60.5, 48.25], [60.75, 48.15], [61.0, 48.25], [61.25, 48.15], [61.5, 48.25], [61.75, 48.15], [62.0, 48.25], [62.25, 48.15], [62.5, 48.25], [62.75, 48.15], [63.0, 48.25], [63.25, 48.15], [63.5, 48.25], [64.03, 48.03], [64.18, 47.68], [64.53, 47.53], [64.75, 47.0], [64.53, 46.47], [64.18, 46.32], [64.03, 45.97], [63.5, 45.75], [63.25, 45.85], [63.0, 45.75], [62.75, 45.85], [62.68, 45.82], [62.53, 45.47], [62.0, 45.25], [61.75, 45.35], [61.5, 45.25], [61.25, 45.35], [61.0, 45.25], [60.75, 45.35], [60.68, 45.32], [60.53, 44.97], [60.0, 44.75], [59.75, 44.85], [59.5, 44.75], [59.25, 44.85], [59.0, 44.75], [58.75, 44.85], [58.68, 44.82], [58.53, 44.47], [58.0, 44.25], [57.75, 44.35], [57.68, 44.32], [57.53, 43.97], [57.0, 43.75], [56.75, 43.85], [56.5, 43.75], [56.25, 43.85], [56.0, 43.75], [55.75, 43.85], [55.5, 43.75], [55.25, 43.85], [55.0, 43.75], [54.75, 43.85], [54.5, 43.75], [53.97, 43.97], [53.82, 44.32], [53.47, 44.47], [53.25, 45.0], [53.35, 45.25], [53.32, 45.32], [52.97, 45.47], [52.82, 45.82], [52.47, 45.97], [52.25, 46.5], [52.35, 46.75], [52.32, 46.82], [51.97, 46.97], [51.75, 47.5]]]]}, "2010-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.97, 47.53], [53.5, 47.75], [53.75, 47.65], [54.0, 47.75], [54.25, 47.65], [54.32, 47.68], [54.47, 48.03], [55.0, 48.25], [55.25, 48.15], [55.5, 48.25], [55.75, 48.15], [56.0, 48.25], [56.53, 48.03], [56.68, 47.68], [56.75, 47.65], [57.0, 47.75], [57.25, 47.65], [57.5, 47.75], [57.75, 47.65], [58.0, 47.75], [58.25, 47.65], [58.5, 47.75], [59.0, 47.54], [59.32, 47.68], [59.47, 48.03], [60.0, 48.25], [60.25, 48.15], [60.5, 48.25], [60.75, 48.15], [61.0, 48.25], [61.25, 48.15], [61.5, 48.25], [61.75, 48.15], [62.0, 48.25], [62.25, 48.15], [62.5, 48.25], [62.75, 48.15], [63.0, 48.25], [63.25, 48.15], [63.5, 48.25], [64.03, 48.03], [64.18, 47.68], [64.53, 47.53], [64.75, 47.0], [64.53, 46.47], [64.18, 46.32], [64.03, 45.97], [63.5, 45.75], [63.25, 45.85], [63.0, 45.75], [62.75, 45.85], [62.68, 45.82], [62.53, 45.47], [62.0, 45.25], [61.75, 45.35], [61.5, 45.25], [61.25, 45.35], [61.0, 45.25], [60.75, 45.35], [60.68, 45.32], [60.53, 44.97], [60.0, 44.75], [59.75, 44.85], [59.5, 44.75], [59.25, 44.85], [59.0, 44.75], [58.75, 44.85], [58.68, 44.82], [58.53, 44.47], [58.0, 44.25], [57.75, 44.35], [57.68, 44.32], [57.53, 43.97], [57.0, 43.75], [56.75, 43.85], [56.5, 43.75], [56.25, 43.85], [56.0, 43.75], [55.75, 43.85], [55.5, 43.75], [55.25, 43.85], [55.0, 43.75], [54.75, 43.85], [54.5, 43.75], [53.97, 43.97], [53.82, 44.32], [53.47, 44.47], [53.25, 45.0], [53.46, 45.5], [53.32, 45.82], [52.97, 45.97], [52.75, 46.5], [52.85, 46.75], [52.75, 47.0], [52.97, 47.53]]]]}, "2010-01-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.25, 45.5], [55.47, 46.03], [56.0, 46.25], [56.25, 46.15], [56.5, 46.25], [57.03, 46.03], [57.25, 45.5], [57.03, 44.97], [56.5, 44.75], [56.25, 44.85], [56.0, 44.75], [55.47, 44.97], [55.25, 45.5]]], [[[58.25, 45.5], [58.47, 46.03], [59.0, 46.25], [59.25, 46.15], [59.5, 46.25], [59.75, 46.15], [59.82, 46.18], [59.97, 46.53], [60.32, 46.68], [60.47, 47.03], [60.82, 47.18], [60.97, 47.53], [61.5, 47.75], [61.75, 47.65], [61.82, 47.68], [61.97, 48.03], [62.5, 48.25], [62.75, 48.15], [63.0, 48.25], [63.53, 48.03], [63.75, 47.5], [63.53, 46.97], [63.18, 46.82], [63.03, 46.47], [62.68, 46.32], [62.53, 45.97], [62.0, 45.75], [61.75, 45.85], [61.68, 45.82], [61.53, 45.47], [61.0, 45.25], [60.75, 45.35], [60.68, 45.32], [60.53, 44.97], [60.0, 44.75], [59.75, 44.85], [59.5, 44.75], [59.25, 44.85], [59.0, 44.75], [58.47, 44.97], [58.25, 45.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -19.91230194680199}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -11.841474826732126}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-17.01955399400913, -20.593447316231135, -19.879446799115527, -19.851218554802728, -16.32003310908783]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-19.689126282101483, -26.04641564222672, -24.831792260220396, -25.853414620818057, -19.935146578121504]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-10.333452923175194, -12.731170783549942, -12.150090090212753, -12.080725198354537, -7.914403017504083]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-13.268243645817705, -19.91230194680199, -17.045915340501125, -15.6886255984152, -9.46433234871634]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8620914909742199, -2.2283996876805285, -2.143987517760584, -2.0986584699007507, -1.3591675919393187]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.4036772266138513, -3.6158434501533057, -2.900688981337239, -2.5416079742373574, -1.483223221858794]}}