{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:24:06.830927", "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-Oct-14_to_2022-Oct-17_80.0_45.0"}, "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": 2022100002061}, "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": "October 14 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 17 2022"}, "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": 66512.09430593181}, "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", "Kazakhstan", "Kyrgyzstan"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "Asia", "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": 45.0}, "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": 80.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "80.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 78.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 82.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 42.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 45.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[77.47, 44.03], [77.82, 44.18], [77.97, 44.53], [78.32, 44.68], [78.47, 45.03], [78.82, 45.18], [78.97, 45.53], [79.32, 45.68], [79.47, 46.03], [80.0, 46.25], [80.25, 46.15], [80.5, 46.25], [80.75, 46.15], [81.0, 46.25], [81.25, 46.15], [81.5, 46.25], [82.03, 46.03], [82.25, 45.5], [82.04, 45.0], [82.18, 44.68], [82.25, 44.65], [82.5, 44.75], [83.03, 44.53], [83.25, 44.0], [83.03, 43.47], [82.5, 43.25], [82.25, 43.35], [82.0, 43.25], [81.75, 43.35], [81.68, 43.32], [81.53, 42.97], [81.0, 42.75], [80.75, 42.85], [80.5, 42.75], [80.25, 42.85], [80.0, 42.75], [79.75, 42.85], [79.5, 42.75], [79.25, 42.85], [79.18, 42.82], [79.03, 42.47], [78.68, 42.32], [78.53, 41.97], [78.0, 41.75], [77.47, 41.97], [77.25, 42.5], [77.35, 42.75], [77.25, 43.0], [77.35, 43.25], [77.25, 43.5], [77.47, 44.03]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Siberia", "E.C.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.47, 44.47], [79.25, 45.0], [79.47, 45.53], [80.0, 45.75], [80.53, 45.53], [80.68, 45.18], [80.75, 45.15], [81.0, 45.25], [81.53, 45.03], [81.75, 44.5], [81.53, 43.97], [81.0, 43.75], [80.75, 43.85], [80.5, 43.75], [79.97, 43.97], [79.82, 44.32], [79.47, 44.47]]]]}, "2022-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[77.25, 43.0], [77.35, 43.25], [77.25, 43.5], [77.47, 44.03], [77.82, 44.18], [77.97, 44.53], [78.32, 44.68], [78.47, 45.03], [78.82, 45.18], [78.97, 45.53], [79.32, 45.68], [79.47, 46.03], [80.0, 46.25], [80.25, 46.15], [80.5, 46.25], [80.75, 46.15], [81.0, 46.25], [81.25, 46.15], [81.5, 46.25], [82.03, 46.03], [82.25, 45.5], [82.04, 45.0], [82.18, 44.68], [82.25, 44.65], [82.5, 44.75], [83.03, 44.53], [83.25, 44.0], [83.03, 43.47], [82.5, 43.25], [82.25, 43.35], [82.0, 43.25], [81.75, 43.35], [81.68, 43.32], [81.53, 42.97], [81.0, 42.75], [80.75, 42.85], [80.5, 42.75], [80.25, 42.85], [80.0, 42.75], [79.75, 42.85], [79.5, 42.75], [79.25, 42.85], [79.18, 42.82], [79.03, 42.47], [78.68, 42.32], [78.53, 41.97], [78.0, 41.75], [77.47, 41.97], [77.25, 42.5], [77.35, 42.75], [77.25, 43.0]]]]}, "2022-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[77.25, 43.0], [77.35, 43.25], [77.25, 43.5], [77.47, 44.03], [77.82, 44.18], [77.97, 44.53], [78.32, 44.68], [78.47, 45.03], [78.82, 45.18], [78.97, 45.53], [79.32, 45.68], [79.47, 46.03], [80.0, 46.25], [80.25, 46.15], [80.5, 46.25], [80.75, 46.15], [81.0, 46.25], [81.25, 46.15], [81.5, 46.25], [82.03, 46.03], [82.25, 45.5], [82.04, 45.0], [82.18, 44.68], [82.25, 44.65], [82.5, 44.75], [83.03, 44.53], [83.25, 44.0], [83.03, 43.47], [82.5, 43.25], [82.25, 43.35], [82.0, 43.25], [81.75, 43.35], [81.68, 43.32], [81.53, 42.97], [81.0, 42.75], [80.75, 42.85], [80.5, 42.75], [80.25, 42.85], [80.0, 42.75], [79.75, 42.85], [79.5, 42.75], [79.25, 42.85], [79.18, 42.82], [79.03, 42.47], [78.68, 42.32], [78.53, 41.97], [78.0, 41.75], 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"description": "Maximum t2m anomaly recorded over entire duration", "value": 6.9602246959235}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.974932691165771}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [2.805893568760098, 8.568694110913043, 9.822363486748031, 9.229338602041594]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.735038370237248, 15.956653022018145, 16.971896156577714, 17.5032816410814]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.006750414781341, 4.127595022434832, 5.60415524634409, 5.3007258027427335]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.29039537197292, 5.220248747506787, 6.55872619550081, 6.9602246959235]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.24111362435689, 1.2447050278266716, 1.6177937831510756, 1.4640300701171658]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3762956269925748, 1.58973454812522, 1.8157957452653504, 1.9805863112213038]}}