{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:29.902894", "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": "2012-Jan-17_to_2012-Jan-21_128.5_35.5"}, "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": 2012010002386}, "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 17 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 21 2012"}, "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": 121651.150361921}, "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": ["Japan", "South Korea"]}, "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": ["Eastern China Sea", "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": 35.5}, "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": 128.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "128.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 127.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 131.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 32.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 37.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-01-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.75, 34.5], [126.97, 35.03], [127.32, 35.18], [127.35, 35.25], [127.25, 35.5], [127.47, 36.03], [127.82, 36.18], [127.97, 36.53], [128.32, 36.68], [128.47, 37.03], [129.0, 37.25], [129.53, 37.03], [129.68, 36.68], [129.75, 36.65], [130.0, 36.75], [130.53, 36.53], [130.68, 36.18], [131.03, 36.03], [131.25, 35.5], [131.03, 34.97], [130.68, 34.82], [130.53, 34.47], [130.18, 34.32], [130.03, 33.97], [129.68, 33.82], [129.53, 33.47], [129.18, 33.32], [129.03, 32.97], [128.5, 32.75], [128.25, 32.85], [128.0, 32.75], [127.47, 32.97], [127.25, 33.5], [127.35, 33.75], [127.32, 33.82], [126.97, 33.97], [126.75, 34.5]]]]}, "2012-01-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.85, 33.75], [126.75, 34.0], [126.85, 34.25], [126.75, 34.5], [126.85, 34.75], [126.75, 35.0], [126.85, 35.25], [126.75, 35.5], [126.85, 35.75], [126.75, 36.0], [126.97, 36.53], [127.32, 36.68], [127.47, 37.03], [127.82, 37.18], [127.97, 37.53], [128.5, 37.75], [128.75, 37.65], [129.0, 37.75], [129.53, 37.53], [129.68, 37.18], [130.03, 37.03], [130.18, 36.68], [130.53, 36.53], [130.68, 36.18], [131.03, 36.03], [131.25, 35.5], [131.03, 34.97], [130.68, 34.82], [130.65, 34.75], [130.75, 34.5], [130.63, 34.2], [131.03, 34.03], [131.18, 33.68], [131.53, 33.53], [131.75, 33.0], [131.53, 32.47], [131.0, 32.25], [130.47, 32.47], [130.32, 32.82], [129.97, 32.97], [129.8, 33.38], [129.68, 33.32], [129.53, 32.97], [129.0, 32.75], [128.75, 32.85], [128.68, 32.82], [128.65, 32.75], [128.75, 32.5], [128.53, 31.97], [128.0, 31.75], [127.47, 31.97], [127.32, 32.32], [126.97, 32.47], [126.75, 33.0], [126.85, 33.25], [126.75, 33.5], [126.85, 33.75]]]]}, "2012-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.85, 33.75], [126.75, 34.0], [126.85, 34.25], [126.75, 34.5], [126.85, 34.75], [126.75, 35.0], [126.85, 35.25], [126.75, 35.5], [126.85, 35.75], [126.75, 36.0], [126.97, 36.53], [127.32, 36.68], [127.47, 37.03], [127.82, 37.18], [127.85, 37.25], [127.75, 37.5], [127.97, 38.03], [128.5, 38.25], [129.03, 38.03], [129.18, 37.68], [129.53, 37.53], [129.68, 37.18], [130.03, 37.03], [130.18, 36.68], [130.53, 36.53], [130.68, 36.18], [131.03, 36.03], [131.25, 35.5], [131.03, 34.97], [130.68, 34.82], [130.65, 34.75], [130.68, 34.68], [131.03, 34.53], [131.2, 34.13], [131.5, 34.25], [132.03, 34.03], [132.25, 33.5], [132.03, 32.97], [131.68, 32.82], [131.53, 32.47], [131.0, 32.25], [130.47, 32.47], [130.32, 32.82], [129.97, 32.97], [129.8, 33.38], [129.68, 33.32], [129.53, 32.97], [129.0, 32.75], [128.75, 32.85], [128.68, 32.82], [128.65, 32.75], [128.75, 32.5], [128.53, 31.97], [128.0, 31.75], [127.47, 31.97], [127.32, 32.32], [126.97, 32.47], [126.75, 33.0], [126.85, 33.25], [126.75, 33.5], [126.85, 33.75]]]]}, "2012-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.85, 33.75], [126.75, 34.0], [126.85, 34.25], [126.75, 34.5], [126.85, 34.75], [126.75, 35.0], [126.85, 35.25], [126.75, 35.5], [126.85, 35.75], [126.75, 36.0], [126.97, 36.53], [127.32, 36.68], [127.47, 37.03], [127.82, 37.18], [127.85, 37.25], [127.75, 37.5], [127.97, 38.03], [128.5, 38.25], [129.03, 38.03], [129.18, 37.68], [129.53, 37.53], [129.68, 37.18], [130.03, 37.03], [130.25, 36.5], [130.15, 36.25], [130.25, 36.0], [130.15, 35.75], [130.25, 35.5], [130.15, 35.25], [130.18, 35.18], [130.53, 35.03], [130.68, 34.68], [131.03, 34.53], [131.2, 34.13], [131.5, 34.25], [132.03, 34.03], [132.25, 33.5], [132.03, 32.97], [131.68, 32.82], [131.53, 32.47], [131.0, 32.25], [130.47, 32.47], [130.32, 32.82], [129.97, 32.97], [129.8, 33.38], [129.68, 33.32], [129.53, 32.97], [129.0, 32.75], [128.75, 32.85], [128.68, 32.82], [128.65, 32.75], [128.75, 32.5], [128.53, 31.97], [128.0, 31.75], [127.47, 31.97], [127.32, 32.32], [126.97, 32.47], [126.75, 33.0], [126.85, 33.25], [126.75, 33.5], [126.85, 33.75]]]]}, "2012-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.5, 34.75], [131.03, 34.53], [131.2, 34.13], [131.5, 34.25], [132.03, 34.03], [132.25, 33.5], [132.03, 32.97], [131.5, 32.75], [131.0, 32.96], [130.5, 32.75], [129.97, 32.97], [129.75, 33.5], [129.85, 33.75], [129.75, 34.0], [129.97, 34.53], [130.5, 34.75]]], [[[127.85, 36.25], [127.75, 36.5], [127.85, 36.75], [127.75, 37.0], [127.85, 37.25], [127.75, 37.5], [127.97, 38.03], [128.5, 38.25], [129.03, 38.03], [129.25, 37.5], [129.15, 37.25], [129.18, 37.18], [129.53, 37.03], [129.75, 36.5], [129.65, 36.25], [129.75, 36.0], [129.65, 35.75], [129.75, 35.5], [129.53, 34.97], [129.0, 34.75], [128.75, 34.85], [128.68, 34.82], [128.53, 34.47], [128.0, 34.25], [127.75, 34.35], [127.5, 34.25], [126.97, 34.47], [126.75, 35.0], [126.97, 35.53], [127.32, 35.68], [127.47, 36.03], [127.82, 36.18], [127.85, 36.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.659449040773609}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.532131531013261}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.336651695811724, 8.235522543575485, 8.979318831239766, 8.325274977231686, 4.8354978742364665]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.81047156700373, 13.687663513310952, 13.532310157487018, 13.215194368847847, 10.810455272682077]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.823429682663881, 4.2071537574605955, 5.025340147003185, 4.767017769320776, 4.463648660578051]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.4592991712320895, 5.361160840705054, 7.659449040773609, 6.487242352064641, 5.698644797552845]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2196799811073105, 1.3343733059475142, 1.6202480909277608, 1.5180622916951239, 1.3014656574333723]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4074577929220782, 1.5734416934138704, 2.177353645827376, 2.1437943204847865, 1.5726363599921536]}}