{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:36:36.736638", "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": "2023-Sep-25_to_2023-Sep-28_132.5_65.5"}, "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": 2023090001883}, "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": "September 25 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 28 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 64064.70645229155}, "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-Arctic"]}, "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": 65.5}, "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": 132.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "132.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 129.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 138.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 64.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 67.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.0, 67.75], [130.25, 67.65], [130.32, 67.68], [130.47, 68.03], [131.0, 68.25], [131.25, 68.15], [131.5, 68.25], [132.03, 68.03], [132.25, 67.5], [132.15, 67.25], [132.25, 67.0], [132.15, 66.75], [132.25, 66.5], [132.13, 66.2], [132.25, 66.15], [132.5, 66.25], [133.03, 66.03], [133.25, 65.5], [133.03, 64.97], [132.5, 64.75], [132.25, 64.85], [132.0, 64.75], [131.5, 64.96], [131.0, 64.75], [130.75, 64.85], [130.5, 64.75], [130.25, 64.85], [130.0, 64.75], [129.47, 64.97], [129.25, 65.5], [129.38, 65.8], [128.97, 65.97], [128.75, 66.5], [128.97, 67.03], [129.32, 67.18], [129.47, 67.53], [130.0, 67.75]]]]}, "2023-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.0, 67.75], [130.25, 67.65], [130.32, 67.68], [130.47, 68.03], [131.0, 68.25], [131.25, 68.15], [131.5, 68.25], [132.0, 68.04], [132.5, 68.25], [132.75, 68.15], [133.0, 68.25], [133.53, 68.03], [133.68, 67.68], [134.03, 67.53], [134.25, 67.0], [134.03, 66.47], [133.68, 66.32], [133.65, 66.25], [133.68, 66.18], [133.75, 66.15], [134.0, 66.25], [134.25, 66.15], [134.5, 66.25], [134.75, 66.15], [135.0, 66.25], [135.25, 66.15], [135.5, 66.25], [135.75, 66.15], [135.82, 66.18], [135.97, 66.53], [136.5, 66.75], [137.03, 66.53], [137.18, 66.18], [137.25, 66.15], [137.5, 66.25], [137.75, 66.15], [138.0, 66.25], [138.25, 66.15], [138.5, 66.25], [139.03, 66.03], [139.25, 65.5], [139.03, 64.97], [138.5, 64.75], [138.25, 64.85], [138.0, 64.75], [137.75, 64.85], [137.68, 64.82], [137.53, 64.47], [137.0, 64.25], [136.75, 64.35], [136.5, 64.25], [136.25, 64.35], [136.0, 64.25], [135.75, 64.35], [135.5, 64.25], [135.25, 64.35], [135.0, 64.25], [134.47, 64.47], [134.32, 64.82], [134.25, 64.85], [134.18, 64.82], [134.03, 64.47], [133.5, 64.25], [133.25, 64.35], [133.0, 64.25], [132.75, 64.35], [132.5, 64.25], [131.97, 64.47], [131.82, 64.82], [131.75, 64.85], [131.5, 64.75], [131.25, 64.85], [131.0, 64.75], [130.75, 64.85], [130.5, 64.75], [130.25, 64.85], [130.0, 64.75], [129.47, 64.97], [129.25, 65.5], [129.38, 65.8], [128.97, 65.97], [128.75, 66.5], [128.97, 67.03], [129.32, 67.18], [129.47, 67.53], [130.0, 67.75]]]]}, "2023-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.0, 67.75], [130.25, 67.65], [130.32, 67.68], [130.47, 68.03], [131.0, 68.25], [131.25, 68.15], [131.5, 68.25], [132.0, 68.04], [132.5, 68.25], [132.75, 68.15], [133.0, 68.25], [133.53, 68.03], [133.68, 67.68], [134.03, 67.53], [134.25, 67.0], [134.03, 66.47], [133.68, 66.32], [133.65, 66.25], [133.68, 66.18], [133.75, 66.15], [134.0, 66.25], [134.25, 66.15], [134.5, 66.25], [134.75, 66.15], [135.0, 66.25], [135.25, 66.15], [135.5, 66.25], [135.75, 66.15], [135.82, 66.18], [135.97, 66.53], [136.5, 66.75], [137.03, 66.53], [137.18, 66.18], [137.25, 66.15], [137.5, 66.25], [137.75, 66.15], [138.0, 66.25], [138.25, 66.15], [138.5, 66.25], [139.03, 66.03], [139.25, 65.5], [139.03, 64.97], [138.5, 64.75], [138.25, 64.85], [138.0, 64.75], [137.75, 64.85], [137.68, 64.82], [137.53, 64.47], [137.0, 64.25], [136.75, 64.35], [136.5, 64.25], [136.25, 64.35], [136.0, 64.25], [135.75, 64.35], [135.5, 64.25], [135.25, 64.35], [135.0, 64.25], [134.47, 64.47], [134.32, 64.82], [134.25, 64.85], [134.18, 64.82], [134.03, 64.47], [133.5, 64.25], [133.25, 64.35], [133.0, 64.25], [132.75, 64.35], [132.5, 64.25], [131.97, 64.47], [131.82, 64.82], [131.75, 64.85], [131.5, 64.75], [131.25, 64.85], [131.0, 64.75], [130.75, 64.85], [130.5, 64.75], [130.25, 64.85], [130.0, 64.75], [129.47, 64.97], [129.25, 65.5], [129.38, 65.8], [128.97, 65.97], [128.75, 66.5], [128.97, 67.03], [129.32, 67.18], [129.47, 67.53], [130.0, 67.75]]]]}, "2023-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.47, 67.53], [131.82, 67.68], [131.97, 68.03], [132.5, 68.25], [132.75, 68.15], [133.0, 68.25], [133.53, 68.03], [133.68, 67.68], [134.03, 67.53], [134.25, 67.0], [134.03, 66.47], [133.68, 66.32], [133.65, 66.25], [133.68, 66.18], [133.75, 66.15], [134.0, 66.25], [134.25, 66.15], [134.5, 66.25], [134.75, 66.15], [135.0, 66.25], [135.25, 66.15], [135.5, 66.25], [135.75, 66.15], [135.82, 66.18], [135.97, 66.53], [136.5, 66.75], [137.03, 66.53], [137.18, 66.18], [137.25, 66.15], [137.5, 66.25], [137.75, 66.15], [138.0, 66.25], [138.25, 66.15], [138.5, 66.25], [139.03, 66.03], [139.25, 65.5], [139.03, 64.97], [138.5, 64.75], [138.25, 64.85], [138.0, 64.75], [137.75, 64.85], [137.68, 64.82], [137.53, 64.47], [137.0, 64.25], [136.75, 64.35], [136.5, 64.25], [136.25, 64.35], [136.0, 64.25], [135.75, 64.35], [135.5, 64.25], [135.25, 64.35], [135.0, 64.25], [134.47, 64.47], [134.32, 64.82], [134.25, 64.85], [134.18, 64.82], [134.03, 64.47], [133.5, 64.25], [133.25, 64.35], [133.0, 64.25], [132.75, 64.35], [132.5, 64.25], [131.97, 64.47], [131.82, 64.82], [131.75, 64.85], [131.5, 64.75], [130.97, 64.97], [130.75, 65.5], [130.97, 66.03], [131.38, 66.2], [131.25, 66.5], [131.35, 66.75], [131.25, 67.0], [131.47, 67.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.669070355943688}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.661292247295064}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [3.042587503591733, 5.648906966192385, 2.96841087932728, 2.3083856942657235]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [3.7854493707449706, 7.876587509876288, 4.125309838498254, 3.21849509116538]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.732745299095465, 8.310235457867256, 6.053612063871158, 5.621561695381631]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.092542435735254, 10.669070355943688, 7.783255255981203, 7.204264338665041]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.695779043595195, 2.5015327338582884, 1.7572742444186062, 1.6319382353620966]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9519956427073595, 3.329771808185229, 1.9475497373360293, 1.818475508325849]}}