{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:30:11.374537", "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": "2022-Feb-25_to_2022-Mar-01_130.5_42.5"}, "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": 2022020002366}, "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": "February 25 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 01 2022"}, "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": "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": 50653.05461282339}, "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", "North Korea", "Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia"]}, "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": ["Japan Sea"]}, "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": 42.5}, "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": 130.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "130.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 128.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 132.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 40.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 43.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-02-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.97, 43.53], [129.5, 43.75], [130.0, 43.54], [130.5, 43.75], [130.75, 43.65], [130.82, 43.68], [130.97, 44.03], [131.5, 44.25], [132.03, 44.03], [132.25, 43.5], [132.03, 42.97], [131.68, 42.82], [131.53, 42.47], [131.18, 42.32], [131.04, 42.0], [131.18, 41.68], [131.53, 41.53], [131.68, 41.18], [132.03, 41.03], [132.25, 40.5], [132.03, 39.97], [131.5, 39.75], [131.25, 39.85], [131.0, 39.75], [130.75, 39.85], [130.5, 39.75], [130.25, 39.85], [130.0, 39.75], [129.75, 39.85], [129.5, 39.75], [128.97, 39.97], [128.75, 40.5], [128.97, 41.03], [129.32, 41.18], [129.38, 41.3], [128.97, 41.47], [128.75, 42.0], [128.96, 42.5], [128.75, 43.0], [128.97, 43.53]]]]}, "2022-02-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.97, 43.53], [129.5, 43.75], [130.0, 43.54], [130.5, 43.75], [130.75, 43.65], [130.82, 43.68], [130.97, 44.03], [131.5, 44.25], [131.75, 44.15], [132.0, 44.25], [132.25, 44.15], [132.5, 44.25], [133.03, 44.03], [133.25, 43.5], [133.03, 42.97], [132.5, 42.75], [132.25, 42.85], [132.18, 42.82], [132.03, 42.47], [131.5, 42.25], [131.25, 42.35], [131.18, 42.32], [131.04, 42.0], [131.18, 41.68], [131.53, 41.53], [131.68, 41.18], [132.03, 41.03], [132.25, 40.5], [132.03, 39.97], [131.5, 39.75], [131.25, 39.85], [131.0, 39.75], [130.75, 39.85], [130.5, 39.75], [130.25, 39.85], [130.0, 39.75], [129.75, 39.85], [129.5, 39.75], [129.25, 39.85], [129.0, 39.75], [128.47, 39.97], [128.25, 40.5], [128.47, 41.03], [129.0, 41.25], [129.25, 41.15], [129.32, 41.18], [129.35, 41.25], [129.32, 41.32], [128.97, 41.47], [128.75, 42.0], [128.96, 42.5], [128.75, 43.0], [128.97, 43.53]]]]}, "2022-02-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.97, 43.53], [129.5, 43.75], [130.0, 43.54], [130.5, 43.75], [130.75, 43.65], [130.82, 43.68], [130.97, 44.03], [131.5, 44.25], [131.75, 44.15], [132.0, 44.25], [132.25, 44.15], [132.5, 44.25], [133.03, 44.03], [133.25, 43.5], [133.03, 42.97], [132.5, 42.75], [132.25, 42.85], [132.18, 42.82], [132.03, 42.47], [131.5, 42.25], [131.25, 42.35], [131.18, 42.32], [131.04, 42.0], [131.18, 41.68], [131.53, 41.53], [131.68, 41.18], [132.03, 41.03], [132.25, 40.5], [132.03, 39.97], [131.5, 39.75], [131.25, 39.85], [131.0, 39.75], [130.75, 39.85], [130.5, 39.75], [130.25, 39.85], [130.0, 39.75], [129.75, 39.85], [129.5, 39.75], [129.25, 39.85], [129.0, 39.75], [128.47, 39.97], [128.25, 40.5], [128.47, 41.03], [129.0, 41.25], [129.25, 41.15], [129.32, 41.18], [129.35, 41.25], [129.32, 41.32], [128.97, 41.47], [128.75, 42.0], [128.96, 42.5], [128.75, 43.0], [128.97, 43.53]]]]}, "2022-02-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.97, 43.53], [129.5, 43.75], [130.0, 43.54], [130.5, 43.75], [130.75, 43.65], [130.82, 43.68], [130.97, 44.03], [131.5, 44.25], [131.75, 44.15], [132.0, 44.25], [132.25, 44.15], [132.5, 44.25], [133.03, 44.03], [133.25, 43.5], [133.03, 42.97], [132.5, 42.75], [132.25, 42.85], [132.18, 42.82], [132.03, 42.47], [131.5, 42.25], [131.25, 42.35], [131.18, 42.32], [131.03, 41.97], [130.68, 41.82], [130.65, 41.75], [130.68, 41.68], [130.75, 41.65], [131.0, 41.75], [131.53, 41.53], [131.68, 41.18], [132.03, 41.03], [132.25, 40.5], [132.03, 39.97], [131.5, 39.75], [131.25, 39.85], [131.0, 39.75], [130.75, 39.85], [130.5, 39.75], [130.25, 39.85], [130.0, 39.75], [129.75, 39.85], [129.5, 39.75], [129.25, 39.85], [129.0, 39.75], [128.47, 39.97], [128.25, 40.5], [128.47, 41.03], [129.0, 41.25], [129.25, 41.15], [129.32, 41.18], [129.35, 41.25], [129.32, 41.32], [128.97, 41.47], [128.75, 42.0], [128.96, 42.5], [128.75, 43.0], [128.97, 43.53]]]]}, "2022-03-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[129.47, 41.47], [129.25, 42.0], [129.47, 42.53], [130.0, 42.75], [130.53, 42.53], [130.75, 42.0], [130.53, 41.47], [130.0, 41.25], [129.47, 41.47]]], [[[130.97, 42.47], [130.75, 43.0], [130.97, 43.53], [131.5, 43.75], [132.03, 43.53], [132.25, 43.0], [132.03, 42.47], [131.5, 42.25], [130.97, 42.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.5479888978953795}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.136942320098043}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [3.1938788043461273, 2.801303827679476, 2.8809140140208456, 3.1832606171285533, 1.2851941156828843]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [5.769788157344692, 5.299369743665011, 5.778764107577786, 6.319024586575381, 1.9721542373727061]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.196134227761746, 5.080230003911809, 5.050620227866049, 5.31511525664249, 4.365969717672215]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.5479888978953795, 7.342331871823831, 6.851546730205769, 7.1036931281932425, 4.505708807648261]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5541394555388992, 1.4864779513430961, 1.4927251947125646, 1.5834721142434969, 1.3739618620208662]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7307954795984706, 1.8371530540231271, 1.8624863177544928, 1.7033631277782397, 1.4656292109990687]}}