{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:52:22.923537", "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-Jul-07_to_2024-Jul-13_136.5_48.5"}, "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": 2024070000243}, "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 07 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 13 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": 347090.85769577965}, "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": ["China", "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": 48.5}, "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": 136.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "136.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 129.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 140.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 46.75}, "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": {"2024-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.97, 52.47], [131.75, 53.0], [131.97, 53.53], [132.5, 53.75], [132.75, 53.65], [132.82, 53.68], [132.97, 54.03], [133.5, 54.25], [133.75, 54.15], [133.82, 54.18], [133.97, 54.53], [134.5, 54.75], [135.03, 54.53], [135.18, 54.18], [135.53, 54.03], [135.7, 53.63], [136.0, 53.75], [136.25, 53.65], [136.5, 53.75], [136.75, 53.65], [137.0, 53.75], [137.25, 53.65], [137.5, 53.75], [137.75, 53.65], [138.0, 53.75], [138.25, 53.65], [138.5, 53.75], [138.75, 53.65], [139.0, 53.75], [139.25, 53.65], [139.5, 53.75], [140.03, 53.53], [140.25, 53.0], [140.03, 52.47], [139.5, 52.25], [139.25, 52.35], [139.0, 52.25], [138.75, 52.35], [138.68, 52.32], [138.53, 51.97], [138.18, 51.82], [138.03, 51.47], [137.68, 51.32], [137.65, 51.25], [137.75, 51.0], [137.65, 50.75], [137.75, 50.5], [137.53, 49.97], [137.0, 49.75], [136.47, 49.97], [136.32, 50.32], [136.25, 50.35], [136.0, 50.25], [135.75, 50.35], [135.5, 50.25], [134.97, 50.47], [134.75, 51.0], [134.97, 51.53], [135.32, 51.68], [135.35, 51.75], [135.3, 51.88], [135.0, 51.75], [134.75, 51.85], [134.5, 51.75], [133.97, 51.97], [133.82, 52.32], [133.75, 52.35], [133.5, 52.25], [133.25, 52.35], [133.0, 52.25], [132.75, 52.35], [132.5, 52.25], [131.97, 52.47]]]]}, "2024-07-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[129.35, 51.25], [129.25, 51.5], [129.47, 52.03], [129.82, 52.18], [129.97, 52.53], [130.5, 52.75], [130.75, 52.65], [130.82, 52.68], [130.97, 53.03], [131.32, 53.18], [131.47, 53.53], [132.0, 53.75], [132.25, 53.65], [132.32, 53.68], [132.47, 54.03], [133.0, 54.25], [133.25, 54.15], [133.32, 54.18], [133.47, 54.53], [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], [136.53, 54.53], [136.68, 54.18], [136.75, 54.15], [137.0, 54.25], [137.53, 54.03], [137.68, 53.68], [137.75, 53.65], [138.0, 53.75], [138.25, 53.65], [138.5, 53.75], [138.75, 53.65], [139.0, 53.75], [139.25, 53.65], [139.5, 53.75], [140.03, 53.53], [140.25, 53.0], [140.15, 52.75], [140.25, 52.5], [140.15, 52.25], [140.25, 52.0], [140.03, 51.47], [139.5, 51.25], [139.25, 51.35], [139.13, 51.3], [139.25, 51.0], [139.03, 50.47], [138.68, 50.32], [138.65, 50.25], [138.75, 50.0], [138.65, 49.75], [138.75, 49.5], [138.65, 49.25], [138.75, 49.0], [138.53, 48.47], [138.0, 48.25], [137.75, 48.35], [137.68, 48.32], [137.53, 47.97], [137.18, 47.82], [137.03, 47.47], [136.68, 47.32], [136.53, 46.97], [136.0, 46.75], [135.75, 46.85], [135.5, 46.75], [135.25, 46.85], [135.0, 46.75], [134.75, 46.85], [134.5, 46.75], [134.25, 46.85], [134.0, 46.75], [133.47, 46.97], [133.25, 47.5], [133.35, 47.75], [133.32, 47.82], [133.25, 47.85], [133.0, 47.75], [132.75, 47.85], [132.5, 47.75], [131.97, 47.97], [131.75, 48.5], [131.85, 48.75], [131.82, 48.82], [131.47, 48.97], [131.25, 49.5], [131.47, 50.03], [132.0, 50.25], [132.25, 50.15], [132.38, 50.2], [132.25, 50.5], [132.35, 50.75], [132.32, 50.82], [132.25, 50.85], [132.0, 50.75], [131.75, 50.85], [131.68, 50.82], [131.53, 50.47], [131.0, 50.25], [130.75, 50.35], [130.68, 50.32], [130.53, 49.97], [130.0, 49.75], [129.47, 49.97], [129.25, 50.5], [129.35, 50.75], [129.25, 51.0], [129.35, 51.25]]]]}, "2024-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[129.35, 51.25], [129.25, 51.5], [129.47, 52.03], [129.82, 52.18], [129.97, 52.53], [130.5, 52.75], [130.75, 52.65], [130.82, 52.68], [130.97, 53.03], [131.32, 53.18], [131.47, 53.53], [132.0, 53.75], [132.25, 53.65], [132.32, 53.68], [132.47, 54.03], [133.0, 54.25], [133.25, 54.15], [133.32, 54.18], [133.47, 54.53], [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], [136.53, 54.53], [136.68, 54.18], [136.75, 54.15], [137.0, 54.25], [137.53, 54.03], [137.68, 53.68], [137.75, 53.65], [138.0, 53.75], [138.25, 53.65], [138.5, 53.75], [138.75, 53.65], [139.0, 53.75], [139.25, 53.65], [139.5, 53.75], [140.03, 53.53], [140.25, 53.0], [140.15, 52.75], [140.25, 52.5], [140.15, 52.25], [140.25, 52.0], [140.03, 51.47], [139.5, 51.25], [139.25, 51.35], [139.13, 51.3], [139.25, 51.0], [139.15, 50.75], [139.25, 50.5], [139.15, 50.25], [139.25, 50.0], [139.03, 49.47], [138.68, 49.32], [138.65, 49.25], [138.75, 49.0], [138.53, 48.47], [138.0, 48.25], [137.75, 48.35], [137.68, 48.32], [137.65, 48.25], [137.75, 48.0], [137.65, 47.75], [137.75, 47.5], [137.53, 46.97], [137.0, 46.75], [136.75, 46.85], [136.5, 46.75], [136.25, 46.85], [136.0, 46.75], [135.75, 46.85], [135.5, 46.75], [135.25, 46.85], [135.0, 46.75], [134.75, 46.85], [134.5, 46.75], [134.25, 46.85], [134.0, 46.75], [133.75, 46.85], [133.5, 46.75], [132.97, 46.97], [132.82, 47.32], [132.47, 47.47], [132.32, 47.82], [132.25, 47.85], [132.0, 47.75], [131.47, 47.97], [131.25, 48.5], [131.46, 49.0], [131.25, 49.5], [131.47, 50.03], [132.0, 50.25], [132.25, 50.15], [132.38, 50.2], [132.25, 50.5], [132.35, 50.75], [132.32, 50.82], [132.25, 50.85], [132.0, 50.75], [131.75, 50.85], [131.68, 50.82], [131.53, 50.47], [131.0, 50.25], [130.75, 50.35], [130.68, 50.32], [130.53, 49.97], [130.0, 49.75], [129.47, 49.97], [129.25, 50.5], [129.35, 50.75], [129.25, 51.0], [129.35, 51.25]]]]}, "2024-07-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[129.35, 51.25], [129.25, 51.5], [129.47, 52.03], [129.82, 52.18], [129.97, 52.53], [130.5, 52.75], [130.75, 52.65], [130.82, 52.68], [130.97, 53.03], [131.32, 53.18], [131.47, 53.53], [132.0, 53.75], [132.25, 53.65], [132.32, 53.68], [132.47, 54.03], [133.0, 54.25], [133.25, 54.15], [133.32, 54.18], [133.47, 54.53], [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], [136.53, 54.53], [136.68, 54.18], [136.75, 54.15], [137.0, 54.25], [137.53, 54.03], [137.68, 53.68], [137.75, 53.65], [138.0, 53.75], [138.25, 53.65], [138.5, 53.75], [138.75, 53.65], [139.0, 53.75], [139.25, 53.65], [139.5, 53.75], [139.75, 53.65], [140.0, 53.75], [140.53, 53.53], [140.75, 53.0], [140.53, 52.47], [140.18, 52.32], [140.15, 52.25], [140.25, 52.0], [140.03, 51.47], [139.5, 51.25], [139.25, 51.35], [139.13, 51.3], [139.25, 51.0], [139.15, 50.75], [139.25, 50.5], [139.15, 50.25], [139.25, 50.0], [139.03, 49.47], [138.68, 49.32], [138.65, 49.25], [138.75, 49.0], [138.53, 48.47], [138.0, 48.25], [137.75, 48.35], [137.68, 48.32], [137.65, 48.25], [137.75, 48.0], [137.65, 47.75], [137.75, 47.5], [137.53, 46.97], [137.0, 46.75], [136.75, 46.85], [136.5, 46.75], [136.25, 46.85], [136.0, 46.75], [135.75, 46.85], [135.5, 46.75], [135.25, 46.85], [135.0, 46.75], [134.75, 46.85], [134.5, 46.75], [134.25, 46.85], [134.0, 46.75], [133.75, 46.85], [133.5, 46.75], [132.97, 46.97], [132.82, 47.32], [132.47, 47.47], [132.32, 47.82], [132.25, 47.85], [132.0, 47.75], [131.47, 47.97], [131.25, 48.5], [131.46, 49.0], [131.25, 49.5], [131.47, 50.03], [132.0, 50.25], [132.25, 50.15], [132.32, 50.18], [132.35, 50.25], [132.25, 50.5], [132.35, 50.75], [132.32, 50.82], [132.25, 50.85], [132.0, 50.75], [131.75, 50.85], [131.68, 50.82], [131.53, 50.47], [131.0, 50.25], [130.75, 50.35], [130.68, 50.32], [130.53, 49.97], [130.0, 49.75], [129.47, 49.97], [129.25, 50.5], [129.35, 50.75], [129.25, 51.0], [129.35, 51.25]]]]}, "2024-07-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.82, 53.18], [131.97, 53.53], [132.32, 53.68], [132.47, 54.03], [133.0, 54.25], [133.25, 54.15], [133.32, 54.18], [133.47, 54.53], [134.0, 54.75], [134.25, 54.65], [134.5, 54.75], [135.03, 54.53], [135.18, 54.18], [135.25, 54.15], [135.5, 54.25], [135.75, 54.15], [136.0, 54.25], [136.25, 54.15], [136.5, 54.25], [136.75, 54.15], [137.0, 54.25], [137.53, 54.03], [137.68, 53.68], [137.75, 53.65], [138.0, 53.75], [138.25, 53.65], [138.5, 53.75], [138.75, 53.65], [139.0, 53.75], [139.25, 53.65], [139.5, 53.75], [139.75, 53.65], [140.0, 53.75], [140.53, 53.53], [140.75, 53.0], [140.53, 52.47], [140.18, 52.32], [140.15, 52.25], [140.25, 52.0], [140.03, 51.47], [139.5, 51.25], [139.25, 51.35], [139.13, 51.3], [139.25, 51.0], [139.15, 50.75], [139.25, 50.5], [139.15, 50.25], [139.25, 50.0], [139.03, 49.47], [138.68, 49.32], [138.65, 49.25], [138.75, 49.0], [138.53, 48.47], [138.0, 48.25], [137.75, 48.35], [137.68, 48.32], [137.65, 48.25], [137.75, 48.0], [137.65, 47.75], [137.75, 47.5], [137.53, 46.97], [137.0, 46.75], [136.75, 46.85], [136.68, 46.82], [136.53, 46.47], [136.0, 46.25], [135.47, 46.47], [135.32, 46.82], [135.25, 46.85], [135.0, 46.75], [134.75, 46.85], [134.5, 46.75], [134.25, 46.85], [134.0, 46.75], [133.75, 46.85], [133.5, 46.75], [132.97, 46.97], [132.82, 47.32], [132.47, 47.47], [132.32, 47.82], [132.25, 47.85], [132.0, 47.75], [131.47, 47.97], [131.25, 48.5], [131.46, 49.0], [131.25, 49.5], [131.47, 50.03], [132.0, 50.25], [132.25, 50.15], [132.32, 50.18], [132.35, 50.25], [132.25, 50.5], [132.35, 50.75], [132.32, 50.82], [131.97, 50.97], [131.82, 51.32], [131.75, 51.35], [131.5, 51.25], [130.97, 51.47], [130.75, 52.0], [130.97, 52.53], [131.32, 52.68], [131.47, 53.03], [131.82, 53.18]]]]}, "2024-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.47, 47.97], [131.25, 48.5], [131.47, 49.03], [132.0, 49.25], [132.25, 49.15], [132.5, 49.25], [132.75, 49.15], [132.82, 49.18], [132.85, 49.25], [132.82, 49.32], [132.47, 49.47], [132.25, 50.0], [132.35, 50.25], [132.25, 50.5], [132.35, 50.75], [132.25, 51.0], [132.35, 51.25], [132.25, 51.5], [132.47, 52.03], [133.0, 52.25], [133.25, 52.15], [133.5, 52.25], [133.75, 52.15], [133.82, 52.18], [133.97, 52.53], [134.5, 52.75], [135.03, 52.53], [135.18, 52.18], [135.25, 52.15], [135.32, 52.18], [135.47, 52.53], [135.82, 52.68], [135.97, 53.03], [136.5, 53.25], [136.75, 53.15], [137.0, 53.25], [137.25, 53.15], [137.5, 53.25], [137.75, 53.15], [138.0, 53.25], [138.25, 53.15], [138.5, 53.25], [138.75, 53.15], [138.82, 53.18], [138.97, 53.53], [139.5, 53.75], [139.75, 53.65], [140.0, 53.75], [140.53, 53.53], [140.75, 53.0], [140.53, 52.47], [140.18, 52.32], [140.03, 51.97], [139.5, 51.75], [139.25, 51.85], [139.18, 51.82], [139.03, 51.47], [138.5, 51.25], [138.25, 51.35], [138.18, 51.32], [138.15, 51.25], [138.18, 51.18], [138.53, 51.03], [138.75, 50.5], [138.65, 50.25], [138.75, 50.0], [138.65, 49.75], [138.75, 49.5], [138.53, 48.97], [138.18, 48.82], [138.03, 48.47], [137.68, 48.32], [137.65, 48.25], [137.75, 48.0], [137.65, 47.75], [137.75, 47.5], [137.53, 46.97], [137.0, 46.75], [136.75, 46.85], [136.68, 46.82], [136.53, 46.47], [136.0, 46.25], [135.47, 46.47], [135.32, 46.82], [135.25, 46.85], [135.0, 46.75], [134.75, 46.85], [134.5, 46.75], [134.25, 46.85], [134.0, 46.75], [133.75, 46.85], [133.5, 46.75], [132.97, 46.97], [132.82, 47.32], [132.47, 47.47], [132.32, 47.82], [132.25, 47.85], [132.0, 47.75], [131.47, 47.97]]]]}, "2024-07-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.75, 47.5], [134.97, 48.03], [135.32, 48.18], [135.35, 48.25], [135.25, 48.5], [135.47, 49.03], [136.0, 49.25], [136.25, 49.15], [136.5, 49.25], [136.75, 49.15], [137.0, 49.25], [137.53, 49.03], [137.75, 48.5], [137.53, 47.97], [137.18, 47.82], [137.15, 47.75], [137.25, 47.5], [137.03, 46.97], [136.68, 46.82], [136.53, 46.47], [136.0, 46.25], [135.47, 46.47], [135.32, 46.82], [134.97, 46.97], [134.75, 47.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.433121552368164}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.70404676158385}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.091589158166357, 12.632684904357859, 12.517127164294607, 12.196870445997888, 12.81739555021369, 14.428336203850847, 16.403679860831062]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.8905076942725145, 6.222646458957286, 6.063681280232515, 5.9661634848500285, 7.648943968670437, 9.472415019805908, 15.08000746147951]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.880676464384793, -5.569918167654812, -5.8153455678269514, -6.219672003745133, -5.6768270224830175, -5.004058155360462, -3.8782977491849806]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.144401770053719, -7.617516829437136, -7.790530326827536, -8.433121552368164, -8.225607390515336, -6.291533148325868, -4.0197562753368175]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6136798408828654, -1.7591655384465286, -1.8747938940530424, -2.0126215854905847, -1.8491639894476455, -1.6981890803084856, -1.4955895181013552]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8476051794554895, -2.5331457598236273, -2.496931857960425, -2.6472324470695052, -2.351762358243009, -2.179592602877278, -1.5733721587030307]}}