{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:26:22.294868", "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": "2021-Jun-27_to_2021-Jul-06_138.0_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": 2021060002893}, "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 27 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 06 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 10}, "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": 217385.533643001}, "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"]}, "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": 138.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "138.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 135.75}, "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": 37.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 45.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.0, 42.75], [139.53, 42.53], [139.75, 42.0], [139.65, 41.75], [139.7, 41.63], [140.0, 41.75], [140.53, 41.53], [140.75, 41.0], [140.65, 40.75], [140.75, 40.5], [140.65, 40.25], [140.75, 40.0], [140.53, 39.47], [140.0, 39.25], [139.75, 39.35], [139.5, 39.25], [138.97, 39.47], [138.75, 40.0], [138.85, 40.25], [138.75, 40.5], [138.88, 40.8], [138.75, 40.85], [138.5, 40.75], [137.97, 40.97], [137.75, 41.5], [137.97, 42.03], [138.32, 42.18], [138.47, 42.53], [139.0, 42.75]]]]}, "2021-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[136.75, 39.5], [136.97, 40.03], [137.32, 40.18], [137.47, 40.53], [137.82, 40.68], [137.85, 40.75], [137.82, 40.82], [137.75, 40.85], [137.5, 40.75], [136.97, 40.97], [136.75, 41.5], [136.97, 42.03], [137.32, 42.18], [137.47, 42.53], [138.0, 42.75], [138.25, 42.65], [138.5, 42.75], [138.75, 42.65], [138.82, 42.68], [138.97, 43.03], [139.5, 43.25], [140.03, 43.03], [140.25, 42.5], [140.03, 41.97], [139.68, 41.82], [139.65, 41.75], [139.68, 41.68], [139.75, 41.65], [140.0, 41.75], [140.53, 41.53], [140.75, 41.0], [140.65, 40.75], [140.75, 40.5], [140.65, 40.25], [140.75, 40.0], [140.53, 39.47], [140.18, 39.32], [140.03, 38.97], [139.5, 38.75], [139.25, 38.85], [139.18, 38.82], [139.03, 38.47], [138.5, 38.25], [138.25, 38.35], [138.0, 38.25], [137.47, 38.47], [137.32, 38.82], [136.97, 38.97], [136.75, 39.5]]]]}, "2021-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[136.47, 42.53], [136.82, 42.68], [136.97, 43.03], [137.5, 43.25], [137.75, 43.15], [137.82, 43.18], [137.97, 43.53], [138.5, 43.75], [138.75, 43.65], [138.82, 43.68], [138.97, 44.03], [139.5, 44.25], [140.03, 44.03], [140.18, 43.68], [140.53, 43.53], [140.75, 43.0], [140.53, 42.47], [140.18, 42.32], [140.15, 42.25], [140.25, 42.0], [140.13, 41.7], [140.53, 41.53], [140.75, 41.0], [140.65, 40.75], [140.75, 40.5], [140.65, 40.25], [140.75, 40.0], [140.53, 39.47], [140.18, 39.32], [140.03, 38.97], [139.5, 38.75], [139.25, 38.85], [139.18, 38.82], [139.03, 38.47], [138.5, 38.25], [138.25, 38.35], [138.0, 38.25], [137.75, 38.35], [137.5, 38.25], [136.97, 38.47], [136.82, 38.82], [136.47, 38.97], [136.25, 39.5], [136.35, 39.75], [136.25, 40.0], [136.38, 40.3], [135.97, 40.47], [135.75, 41.0], [135.97, 41.53], [136.32, 41.68], [136.35, 41.75], [136.25, 42.0], [136.47, 42.53]]], [[[140.97, 43.97], [140.75, 44.5], [140.97, 45.03], [141.5, 45.25], [142.03, 45.03], [142.25, 44.5], [142.03, 43.97], [141.5, 43.75], [140.97, 43.97]]]]}, "2021-06-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[136.25, 42.0], [136.35, 42.25], [136.25, 42.5], [136.35, 42.75], [136.25, 43.0], [136.47, 43.53], [136.82, 43.68], [136.97, 44.03], [137.32, 44.18], [137.47, 44.53], [137.82, 44.68], [137.97, 45.03], [138.5, 45.25], [138.75, 45.15], [139.0, 45.25], [139.25, 45.15], [139.5, 45.25], [139.75, 45.15], [140.0, 45.25], [140.25, 45.15], [140.5, 45.25], [140.75, 45.15], [141.0, 45.25], [141.25, 45.15], [141.5, 45.25], [142.03, 45.03], [142.25, 44.5], [142.03, 43.97], [141.5, 43.75], [141.25, 43.85], [141.18, 43.82], [141.03, 43.47], [140.68, 43.32], [140.65, 43.25], [140.75, 43.0], [140.53, 42.47], [140.18, 42.32], [140.15, 42.25], [140.25, 42.0], [140.13, 41.7], [140.25, 41.65], [140.5, 41.75], [141.03, 41.53], [141.25, 41.0], [141.15, 40.75], [141.25, 40.5], [141.03, 39.97], [140.68, 39.82], [140.65, 39.75], [140.75, 39.5], [140.53, 38.97], [140.13, 38.8], [140.25, 38.5], [140.03, 37.97], [139.68, 37.82], [139.53, 37.47], [139.0, 37.25], [138.75, 37.35], [138.5, 37.25], [137.97, 37.47], [137.82, 37.82], [137.75, 37.85], [137.5, 37.75], [136.97, 37.97], [136.75, 38.5], [136.85, 38.75], [136.82, 38.82], [136.47, 38.97], [136.25, 39.5], [136.35, 39.75], [136.25, 40.0], [136.38, 40.3], [135.97, 40.47], [135.75, 41.0], [135.97, 41.53], [136.32, 41.68], [136.35, 41.75], [136.25, 42.0]]]]}, "2021-07-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.25, 41.5], [135.47, 42.03], [135.82, 42.18], [135.85, 42.25], [135.75, 42.5], [135.97, 43.03], [136.32, 43.18], [136.47, 43.53], [136.82, 43.68], [136.97, 44.03], [137.32, 44.18], [137.47, 44.53], [137.82, 44.68], [137.97, 45.03], [138.5, 45.25], [138.75, 45.15], [139.0, 45.25], [139.25, 45.15], [139.5, 45.25], [139.75, 45.15], [140.0, 45.25], [140.25, 45.15], [140.32, 45.18], [140.47, 45.53], [141.0, 45.75], [141.53, 45.53], [141.68, 45.18], [142.03, 45.03], [142.25, 44.5], [142.03, 43.97], [141.68, 43.82], [141.53, 43.47], [141.0, 43.25], [140.75, 43.35], [140.68, 43.32], [140.65, 43.25], [140.75, 43.0], [140.53, 42.47], [140.18, 42.32], [140.15, 42.25], [140.25, 42.0], [140.13, 41.7], [140.25, 41.65], [140.5, 41.75], [141.03, 41.53], [141.25, 41.0], [141.15, 40.75], [141.25, 40.5], [141.03, 39.97], [140.68, 39.82], [140.65, 39.75], [140.75, 39.5], [140.53, 38.97], [140.13, 38.8], [140.25, 38.5], [140.03, 37.97], [139.68, 37.82], [139.53, 37.47], [139.0, 37.25], [138.75, 37.35], [138.5, 37.25], [138.25, 37.35], [138.0, 37.25], [137.47, 37.47], [137.32, 37.82], [137.25, 37.85], [137.0, 37.75], [136.47, 37.97], [136.25, 38.5], [136.35, 38.75], [136.25, 39.0], [136.35, 39.25], [136.25, 39.5], [136.35, 39.75], [136.25, 40.0], [136.38, 40.3], [135.97, 40.47], [135.82, 40.82], [135.47, 40.97], [135.25, 41.5]]]]}, "2021-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.47, 42.53], [135.82, 42.68], [135.97, 43.03], [136.32, 43.18], [136.47, 43.53], [136.82, 43.68], [136.97, 44.03], [137.32, 44.18], [137.47, 44.53], [137.82, 44.68], [137.97, 45.03], [138.5, 45.25], [138.75, 45.15], [139.0, 45.25], [139.25, 45.15], [139.5, 45.25], [139.75, 45.15], [140.0, 45.25], [140.25, 45.15], [140.32, 45.18], [140.47, 45.53], [141.0, 45.75], [141.53, 45.53], [141.68, 45.18], [142.03, 45.03], [142.25, 44.5], [142.03, 43.97], [141.68, 43.82], [141.53, 43.47], [141.0, 43.25], [140.75, 43.35], [140.68, 43.32], [140.53, 42.97], [140.18, 42.82], [140.15, 42.75], [140.25, 42.5], [140.03, 41.97], [139.68, 41.82], [139.53, 41.47], [139.18, 41.32], [139.15, 41.25], [139.18, 41.18], [139.25, 41.15], [139.5, 41.25], [139.75, 41.15], [139.82, 41.18], [139.97, 41.53], [140.5, 41.75], [141.03, 41.53], [141.25, 41.0], [141.15, 40.75], [141.25, 40.5], [141.03, 39.97], [140.68, 39.82], [140.65, 39.75], [140.75, 39.5], [140.53, 38.97], [140.13, 38.8], [140.25, 38.5], [140.03, 37.97], [139.68, 37.82], [139.53, 37.47], [139.0, 37.25], [138.75, 37.35], [138.5, 37.25], [138.25, 37.35], [138.0, 37.25], [137.47, 37.47], [137.32, 37.82], [137.25, 37.85], [137.0, 37.75], [136.47, 37.97], [136.25, 38.5], [136.35, 38.75], [136.25, 39.0], [136.35, 39.25], [136.25, 39.5], [136.35, 39.75], [136.25, 40.0], [136.38, 40.3], [135.97, 40.47], [135.82, 40.82], [135.47, 40.97], [135.25, 41.5], [135.35, 41.75], [135.25, 42.0], [135.47, 42.53]]]]}, "2021-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.47, 42.53], [135.82, 42.68], [135.97, 43.03], [136.32, 43.18], [136.47, 43.53], [136.82, 43.68], [136.97, 44.03], [137.32, 44.18], [137.47, 44.53], [137.82, 44.68], [137.97, 45.03], [138.5, 45.25], [139.03, 45.03], [139.18, 44.68], [139.25, 44.65], [139.32, 44.68], [139.47, 45.03], [140.0, 45.25], [140.25, 45.15], [140.32, 45.18], [140.47, 45.53], [141.0, 45.75], [141.53, 45.53], [141.68, 45.18], [142.03, 45.03], [142.25, 44.5], [142.03, 43.97], [141.68, 43.82], [141.53, 43.47], [141.0, 43.25], [140.75, 43.35], [140.68, 43.32], [140.53, 42.97], [140.18, 42.82], [140.15, 42.75], [140.25, 42.5], [140.03, 41.97], [139.68, 41.82], [139.53, 41.47], [139.0, 41.25], [139.25, 41.15], [139.5, 41.25], [140.03, 41.03], [140.18, 40.68], [140.53, 40.53], [140.75, 40.0], [140.65, 39.75], [140.75, 39.5], [140.53, 38.97], [140.13, 38.8], [140.25, 38.5], [140.03, 37.97], [139.5, 37.75], [139.25, 37.85], [139.18, 37.82], [139.03, 37.47], [138.5, 37.25], [138.25, 37.35], [138.0, 37.25], [137.47, 37.47], [137.32, 37.82], [137.25, 37.85], [137.0, 37.75], [136.47, 37.97], [136.25, 38.5], [136.35, 38.75], [136.25, 39.0], [136.35, 39.25], [136.25, 39.5], [136.35, 39.75], [136.25, 40.0], [136.38, 40.3], [135.97, 40.47], [135.82, 40.82], [135.47, 40.97], [135.25, 41.5], [135.35, 41.75], [135.25, 42.0], [135.47, 42.53]], [[138.75, 41.35], [138.68, 41.32], [138.63, 41.2], [138.75, 41.15], [139.0, 41.25], [138.75, 41.35]], [[137.88, 40.8], [137.75, 40.85], [137.68, 40.82], [137.63, 40.7], [137.75, 40.65], [137.82, 40.68], [137.88, 40.8]]]]}, "2021-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.47, 42.53], [135.82, 42.68], [135.97, 43.03], [136.32, 43.18], [136.47, 43.53], [136.82, 43.68], [136.97, 44.03], [137.32, 44.18], [137.47, 44.53], [137.82, 44.68], [137.97, 45.03], [138.5, 45.25], [139.03, 45.03], [139.18, 44.68], [139.25, 44.65], [139.32, 44.68], [139.47, 45.03], [140.0, 45.25], [140.25, 45.15], [140.32, 45.18], [140.47, 45.53], [141.0, 45.75], [141.25, 45.65], [141.5, 45.75], [142.03, 45.53], [142.25, 45.0], [142.15, 44.75], [142.25, 44.5], [142.03, 43.97], [141.68, 43.82], [141.53, 43.47], [141.0, 43.25], [140.75, 43.35], [140.68, 43.32], [140.53, 42.97], [140.18, 42.82], [140.15, 42.75], [140.25, 42.5], [140.03, 41.97], [139.68, 41.82], [139.53, 41.47], [139.0, 41.25], [139.25, 41.15], [139.5, 41.25], [140.03, 41.03], [140.25, 40.5], [140.03, 39.97], [139.68, 39.82], [139.53, 39.47], [139.18, 39.32], [139.15, 39.25], [139.25, 39.0], [139.15, 38.75], [139.25, 38.5], [139.03, 37.97], [138.68, 37.82], [138.53, 37.47], [138.0, 37.25], [137.47, 37.47], [137.32, 37.82], [137.25, 37.85], [137.0, 37.75], [136.47, 37.97], [136.25, 38.5], [136.35, 38.75], [136.25, 39.0], [136.35, 39.25], [136.25, 39.5], [136.35, 39.75], [136.25, 40.0], [136.38, 40.3], [135.97, 40.47], [135.82, 40.82], [135.47, 40.97], [135.25, 41.5], [135.35, 41.75], [135.25, 42.0], [135.47, 42.53]], [[138.75, 41.35], [138.68, 41.32], [138.63, 41.2], [138.75, 41.15], [139.0, 41.25], [138.75, 41.35]], [[137.75, 40.85], [137.68, 40.82], [137.63, 40.7], [137.75, 40.65], [137.82, 40.68], [137.88, 40.8], [137.75, 40.85]]]]}, "2021-07-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[136.25, 43.0], [136.47, 43.53], [136.82, 43.68], [136.97, 44.03], [137.32, 44.18], [137.47, 44.53], [137.82, 44.68], [137.97, 45.03], [138.5, 45.25], [139.03, 45.03], [139.18, 44.68], [139.25, 44.65], [139.32, 44.68], [139.47, 45.03], [140.0, 45.25], [140.25, 45.15], [140.32, 45.18], [140.47, 45.53], [141.0, 45.75], [141.25, 45.65], [141.5, 45.75], [142.03, 45.53], [142.25, 45.0], [142.15, 44.75], [142.25, 44.5], [142.03, 43.97], [141.68, 43.82], [141.53, 43.47], [141.0, 43.25], [140.75, 43.35], [140.68, 43.32], [140.53, 42.97], [140.18, 42.82], [140.15, 42.75], [140.25, 42.5], [140.03, 41.97], [139.5, 41.75], [139.25, 41.85], [139.0, 41.75], [138.75, 41.85], [138.5, 41.75], [138.25, 41.85], [138.0, 41.75], [137.75, 41.85], [137.5, 41.75], [136.97, 41.97], [136.82, 42.32], [136.47, 42.47], [136.25, 43.0]]]]}, "2021-07-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.47, 43.97], [139.25, 44.5], [139.47, 45.03], [140.0, 45.25], [140.25, 45.15], [140.32, 45.18], [140.47, 45.53], [141.0, 45.75], [141.25, 45.65], [141.5, 45.75], [142.03, 45.53], [142.25, 45.0], [142.15, 44.75], [142.25, 44.5], [142.03, 43.97], [141.5, 43.75], [141.0, 43.96], [140.5, 43.75], [140.25, 43.85], [140.0, 43.75], [139.47, 43.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.446979535188063}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.5631735874293637}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.793251272070847, 20.767156639251027, 20.328262539470472, 20.406947354017916, 20.890014491112993, 20.85260868626159, 20.546975682130267, 20.67024668190811, 19.375732409384625, 18.732031197983304]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.049358955545415, 24.24278715882241, 23.315486828183737, 24.72129388237704, 25.58704477321561, 26.03419935858517, 25.224132003657303, 23.763643237335998, 20.24210831324598, 19.447608262106144]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.282565403881975, 2.166412042573853, 2.262125599440047, 2.530918235278576, 2.86260102089906, 2.679492001530759, 2.342448168882309, 2.7156608347244098, 2.611501578992228, 2.230508007336323]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.218193878026625, 3.323364471101911, 2.8287551262354214, 3.8157391637938076, 4.446979535188063, 4.143933289451809, 3.275085160368633, 3.6806907417816888, 3.113228193172347, 2.504780248263387]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5494370491868572, 1.5666023760443066, 1.6845189794570976, 1.863083875688372, 2.111357774268767, 1.994898029137902, 1.784655134305822, 2.070886814965073, 1.9960108725038732, 1.5465046748891986]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8419756865570924, 1.928147125492062, 2.2093198625637256, 2.626729410941605, 2.7066637629694674, 2.6186472564721712, 2.582721878694844, 2.847393792868616, 2.407251058657505, 1.6639895434753684]}}