{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:52:05.421331", "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": "2024-Jun-16_to_2024-Jun-22_141.5_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": 2024060000410}, "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 16 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 22 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 193572.94822357845}, "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": ["Sea of Okhotsk"]}, "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": 141.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "141.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 132.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 141.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 49.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 54.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.03, 51.97], [141.5, 51.75], [140.97, 51.97], [140.75, 52.5], [140.97, 53.03], [141.5, 53.25], [142.03, 53.03], [142.25, 52.5], [142.03, 51.97]]], [[[139.75, 54.0], [139.97, 54.53], [140.5, 54.75], [140.75, 54.65], [141.0, 54.75], [141.25, 54.65], [141.5, 54.75], [142.03, 54.53], [142.25, 54.0], [142.03, 53.47], [141.5, 53.25], [141.25, 53.35], [141.0, 53.25], [140.75, 53.35], [140.5, 53.25], [139.97, 53.47], [139.75, 54.0]]]]}, "2024-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.75, 54.0], [132.97, 54.53], [133.5, 54.75], [133.75, 54.65], [134.0, 54.75], [134.25, 54.65], [134.5, 54.75], [134.75, 54.65], [135.0, 54.75], [135.25, 54.65], [135.5, 54.75], [135.75, 54.65], [136.0, 54.75], [136.25, 54.65], [136.5, 54.75], [136.75, 54.65], [137.0, 54.75], [137.25, 54.65], [137.5, 54.75], [138.0, 54.54], [138.5, 54.75], [138.75, 54.65], [139.0, 54.75], [139.25, 54.65], [139.5, 54.75], [140.0, 54.54], [140.5, 54.75], [140.75, 54.65], [141.0, 54.75], [141.25, 54.65], [141.5, 54.75], [142.03, 54.53], [142.25, 54.0], [142.03, 53.47], [141.63, 53.3], [141.68, 53.18], [142.03, 53.03], [142.25, 52.5], [142.03, 51.97], [141.5, 51.75], [141.25, 51.85], [141.18, 51.82], [141.03, 51.47], [140.68, 51.32], [140.53, 50.97], [140.0, 50.75], [139.75, 50.85], [139.5, 50.75], [139.25, 50.85], [139.0, 50.75], [138.75, 50.85], [138.5, 50.75], [138.25, 50.85], [138.18, 50.82], [138.03, 50.47], [137.68, 50.32], [137.53, 49.97], [137.18, 49.82], [137.03, 49.47], [136.5, 49.25], [136.25, 49.35], [136.0, 49.25], [135.47, 49.47], [135.25, 50.0], [135.38, 50.3], [135.25, 50.35], [135.0, 50.25], [134.75, 50.35], [134.5, 50.25], [133.97, 50.47], [133.82, 50.82], [133.75, 50.85], [133.5, 50.75], [132.97, 50.97], [132.75, 51.5], [132.85, 51.75], [132.75, 52.0], [132.93, 52.43], [132.5, 52.25], [131.97, 52.47], [131.75, 53.0], [131.97, 53.53], [132.5, 53.75], [132.8, 53.63], [132.85, 53.75], [132.75, 54.0]], [[133.2, 52.88], [133.07, 52.57], [133.38, 52.7], [133.32, 52.82], [133.2, 52.88]]]]}, "2024-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.75, 53.0], [131.97, 53.53], [132.5, 53.75], [132.75, 53.65], [132.82, 53.68], [132.85, 53.75], [132.75, 54.0], [132.97, 54.53], [133.5, 54.75], [133.75, 54.65], [134.0, 54.75], [134.25, 54.65], [134.5, 54.75], [134.75, 54.65], [135.0, 54.75], [135.25, 54.65], [135.5, 54.75], [135.75, 54.65], [136.0, 54.75], [136.25, 54.65], [136.5, 54.75], [136.75, 54.65], [137.0, 54.75], [137.25, 54.65], [137.5, 54.75], [137.75, 54.65], [138.0, 54.75], [138.25, 54.65], [138.5, 54.75], [138.75, 54.65], [139.0, 54.75], [139.25, 54.65], [139.5, 54.75], [140.0, 54.54], [140.5, 54.75], [140.75, 54.65], [141.0, 54.75], [141.25, 54.65], [141.5, 54.75], [142.03, 54.53], [142.25, 54.0], [142.03, 53.47], [141.63, 53.3], [141.68, 53.18], [142.03, 53.03], [142.25, 52.5], [142.03, 51.97], [141.5, 51.75], [141.25, 51.85], [141.18, 51.82], [141.03, 51.47], [140.68, 51.32], [140.53, 50.97], [140.0, 50.75], [139.75, 50.85], [139.5, 50.75], [139.25, 50.85], [139.0, 50.75], [138.75, 50.85], [138.5, 50.75], [138.25, 50.85], [138.18, 50.82], [138.03, 50.47], [137.68, 50.32], [137.53, 49.97], [137.18, 49.82], [137.03, 49.47], [136.5, 49.25], [136.25, 49.35], [136.0, 49.25], [135.47, 49.47], [135.25, 50.0], [135.38, 50.3], [135.25, 50.35], [135.0, 50.25], [134.75, 50.35], [134.5, 50.25], [133.97, 50.47], [133.82, 50.82], [133.75, 50.85], [133.5, 50.75], [132.97, 50.97], [132.82, 51.32], [132.47, 51.47], [132.25, 52.0], [132.38, 52.3], [131.97, 52.47], [131.75, 53.0]]]]}, "2024-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.75, 53.0], [131.97, 53.53], [132.5, 53.75], [132.75, 53.65], [132.82, 53.68], [132.85, 53.75], [132.75, 54.0], [132.97, 54.53], [133.5, 54.75], [133.75, 54.65], [134.0, 54.75], [134.25, 54.65], [134.5, 54.75], [134.75, 54.65], [135.0, 54.75], [135.25, 54.65], [135.5, 54.75], [135.75, 54.65], [136.0, 54.75], [136.25, 54.65], [136.5, 54.75], [136.75, 54.65], [137.0, 54.75], [137.25, 54.65], [137.5, 54.75], [137.75, 54.65], [138.0, 54.75], [138.25, 54.65], [138.5, 54.75], [138.75, 54.65], [139.0, 54.75], [139.25, 54.65], [139.5, 54.75], [140.03, 54.53], [140.18, 54.18], [140.3, 54.13], [140.47, 54.53], [141.0, 54.75], [141.25, 54.65], [141.5, 54.75], [142.03, 54.53], [142.25, 54.0], [142.03, 53.47], [141.63, 53.3], [141.68, 53.18], [142.03, 53.03], [142.25, 52.5], [142.03, 51.97], [141.5, 51.75], [141.25, 51.85], [141.18, 51.82], [141.03, 51.47], [140.68, 51.32], [140.53, 50.97], [140.0, 50.75], [139.75, 50.85], [139.5, 50.75], [139.25, 50.85], [139.0, 50.75], [138.75, 50.85], [138.5, 50.75], [138.25, 50.85], [138.18, 50.82], [138.03, 50.47], [137.68, 50.32], [137.53, 49.97], [137.18, 49.82], [137.03, 49.47], [136.5, 49.25], [136.25, 49.35], [136.0, 49.25], [135.47, 49.47], [135.25, 50.0], [135.38, 50.3], [135.25, 50.35], [135.0, 50.25], [134.75, 50.35], [134.5, 50.25], [133.97, 50.47], [133.82, 50.82], [133.75, 50.85], [133.5, 50.75], [132.97, 50.97], [132.82, 51.32], [132.47, 51.47], [132.25, 52.0], [132.38, 52.3], [131.97, 52.47], [131.75, 53.0]]]]}, "2024-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.97, 53.53], [132.5, 53.75], [132.75, 53.65], [132.82, 53.68], [132.85, 53.75], [132.75, 54.0], [132.97, 54.53], [133.5, 54.75], [133.75, 54.65], [134.0, 54.75], [134.25, 54.65], [134.5, 54.75], [134.75, 54.65], [135.0, 54.75], [135.25, 54.65], [135.5, 54.75], [135.75, 54.65], [136.0, 54.75], [136.25, 54.65], [136.5, 54.75], [136.75, 54.65], [137.0, 54.75], [137.25, 54.65], [137.5, 54.75], [137.75, 54.65], [138.0, 54.75], [138.25, 54.65], [138.5, 54.75], [138.75, 54.65], [139.0, 54.75], [139.25, 54.65], [139.5, 54.75], [140.03, 54.53], [140.25, 54.0], [140.15, 53.75], [140.18, 53.68], [140.53, 53.53], [140.75, 53.0], [140.65, 52.75], [140.75, 52.5], [140.53, 51.97], [140.18, 51.82], [140.15, 51.75], [140.25, 51.5], [140.03, 50.97], [139.5, 50.75], [138.97, 50.97], [138.82, 51.32], [138.75, 51.35], [138.68, 51.32], [138.53, 50.97], [138.18, 50.82], [138.03, 50.47], [137.68, 50.32], [137.53, 49.97], [137.18, 49.82], [137.03, 49.47], [136.5, 49.25], [136.25, 49.35], [136.0, 49.25], [135.47, 49.47], [135.25, 50.0], [135.38, 50.3], [135.25, 50.35], [135.0, 50.25], [134.75, 50.35], [134.5, 50.25], [133.97, 50.47], [133.82, 50.82], [133.75, 50.85], [133.5, 50.75], [132.97, 50.97], [132.82, 51.32], [132.47, 51.47], [132.25, 52.0], [132.38, 52.3], [131.97, 52.47], [131.75, 53.0], [131.97, 53.53]], [[133.75, 52.65], [133.82, 52.68], [133.85, 52.75], [133.8, 52.88], [133.68, 52.82], [133.63, 52.7], [133.75, 52.65]]], [[[142.03, 53.03], [142.25, 52.5], [142.03, 51.97], [141.5, 51.75], [140.97, 51.97], [140.75, 52.5], [140.97, 53.03], [141.5, 53.25], [142.03, 53.03]]]]}, "2024-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.47, 52.03], [134.0, 52.25], [134.25, 52.15], [134.5, 52.25], [134.75, 52.15], [135.0, 52.25], [135.53, 52.03], [135.75, 51.5], [135.65, 51.25], [135.75, 51.0], [135.53, 50.47], [135.0, 50.25], [134.75, 50.35], [134.5, 50.25], [133.97, 50.47], [133.82, 50.82], [133.47, 50.97], [133.25, 51.5], [133.47, 52.03]]], [[[142.25, 52.5], [142.03, 51.97], [141.5, 51.75], [140.97, 51.97], [140.75, 52.5], [140.97, 53.03], [141.5, 53.25], [142.03, 53.03], [142.25, 52.5]]], [[[138.35, 53.25], [138.25, 53.5], [138.47, 54.03], [138.82, 54.18], [138.97, 54.53], [139.5, 54.75], [140.03, 54.53], [140.25, 54.0], [140.15, 53.75], [140.18, 53.68], [140.53, 53.53], [140.75, 53.0], [140.65, 52.75], [140.75, 52.5], [140.53, 51.97], [140.18, 51.82], [140.15, 51.75], [140.25, 51.5], [140.03, 50.97], [139.5, 50.75], [138.97, 50.97], [138.82, 51.32], [138.47, 51.47], [138.25, 52.0], [138.35, 52.25], [138.25, 52.5], [138.35, 52.75], [138.25, 53.0], [138.35, 53.25]]]]}, "2024-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.5, 53.25], [142.03, 53.03], [142.25, 52.5], [142.03, 51.97], [141.5, 51.75], [140.97, 51.97], [140.75, 52.5], [140.97, 53.03], [141.5, 53.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -10.410131149454912}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -7.085745497470062}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [4.873564441410792, 5.549327956912634, 6.69455110298577, 6.892725694279704, 7.143972950541013, 8.705383109840454, 6.284729775321125]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [4.445407003543835, 1.9069174293014726, 1.3719642723914376, 0.7330578680479221, 1.0217717700997468, 5.2822306453838905, 6.284729775321125]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.808433824036115, -7.977954009041829, -6.912402650271248, -6.9091131641836405, -6.987872926406081, -5.770214120892054, -3.137303322754235]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.2331827624161633, -10.410131149454912, -9.286069097721736, -10.020363240710992, -8.802508142549414, -6.773671613577676, -3.137303322754235]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2598952969937294, -2.0242810006829295, -1.782944673754973, -1.7548269744299911, -1.743878636753889, -1.5244232535151334, -1.2687799169488012]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3767796031614081, -2.5963420000885584, -2.411943751199437, -2.332960588054343, -2.138065889312501, -1.7620034361911336, -1.2687799169488012]}}