{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:57:37.268852", "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": "2025-Oct-27_to_2025-Nov-05_83.0_32.5"}, "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": 2025100002335}, "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 27 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 05 2025"}, "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": 85394.86733999063}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Tibetan-Plateau"]}, "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": 32.5}, "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": 83.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "83.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 81.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 86.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 31.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 34.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-10-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[82.97, 31.47], [82.75, 32.0], [82.97, 32.53], [83.5, 32.75], [83.75, 32.65], [84.0, 32.75], [84.53, 32.53], [84.75, 32.0], [84.53, 31.47], [84.0, 31.25], [83.75, 31.35], [83.5, 31.25], [82.97, 31.47]]]]}, "2025-10-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[82.97, 31.47], [82.75, 32.0], [82.97, 32.53], [83.5, 32.75], [83.75, 32.65], [84.0, 32.75], [84.53, 32.53], [84.75, 32.0], [84.53, 31.47], [84.0, 31.25], [83.75, 31.35], [83.5, 31.25], [82.97, 31.47]]]]}, "2025-10-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[82.97, 31.47], [82.75, 32.0], [82.97, 32.53], [83.5, 32.75], [83.75, 32.65], [84.0, 32.75], [84.53, 32.53], [84.75, 32.0], [84.53, 31.47], [84.0, 31.25], [83.75, 31.35], [83.5, 31.25], [82.97, 31.47]]]]}, "2025-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[81.47, 31.97], [81.25, 32.5], [81.47, 33.03], [82.0, 33.25], [82.25, 33.15], [82.5, 33.25], [82.75, 33.15], [82.82, 33.18], [82.97, 33.53], [83.5, 33.75], [83.75, 33.65], [84.0, 33.75], [84.25, 33.65], [84.32, 33.68], [84.47, 34.03], [85.0, 34.25], [85.53, 34.03], [85.68, 33.68], [85.75, 33.65], [86.0, 33.75], [86.25, 33.65], [86.5, 33.75], [87.03, 33.53], [87.25, 33.0], [87.03, 32.47], [86.68, 32.32], [86.53, 31.97], [86.0, 31.75], [85.75, 31.85], [85.5, 31.75], [85.25, 31.85], [85.0, 31.75], [84.75, 31.85], [84.68, 31.82], [84.53, 31.47], [84.0, 31.25], [83.75, 31.35], [83.5, 31.25], [83.25, 31.35], [83.0, 31.25], [82.47, 31.47], [82.32, 31.82], [82.25, 31.85], [82.0, 31.75], [81.47, 31.97]]]]}, "2025-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[81.47, 31.97], [81.25, 32.5], [81.47, 33.03], [82.0, 33.25], [82.25, 33.15], [82.5, 33.25], [82.75, 33.15], [82.82, 33.18], [82.97, 33.53], [83.5, 33.75], [83.75, 33.65], [84.0, 33.75], [84.25, 33.65], [84.32, 33.68], [84.47, 34.03], [85.0, 34.25], [85.53, 34.03], [85.68, 33.68], [85.75, 33.65], [86.0, 33.75], [86.25, 33.65], [86.5, 33.75], [87.03, 33.53], [87.25, 33.0], [87.03, 32.47], [86.68, 32.32], [86.53, 31.97], [86.0, 31.75], [85.75, 31.85], [85.5, 31.75], [85.25, 31.85], [85.0, 31.75], [84.75, 31.85], [84.68, 31.82], [84.53, 31.47], [84.0, 31.25], [83.75, 31.35], [83.5, 31.25], [83.25, 31.35], [83.0, 31.25], [82.47, 31.47], [82.32, 31.82], [82.25, 31.85], [82.0, 31.75], [81.47, 31.97]]]]}, "2025-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[81.47, 31.97], [81.25, 32.5], [81.47, 33.03], [82.0, 33.25], [82.25, 33.15], [82.5, 33.25], [82.75, 33.15], [82.82, 33.18], [82.97, 33.53], [83.5, 33.75], [83.75, 33.65], [84.0, 33.75], [84.25, 33.65], [84.32, 33.68], [84.47, 34.03], [85.0, 34.25], [85.53, 34.03], [85.68, 33.68], [85.75, 33.65], [86.0, 33.75], [86.25, 33.65], [86.5, 33.75], [87.03, 33.53], [87.25, 33.0], [87.03, 32.47], [86.68, 32.32], [86.53, 31.97], [86.0, 31.75], [85.75, 31.85], [85.5, 31.75], [85.25, 31.85], [85.0, 31.75], [84.75, 31.85], [84.5, 31.75], [84.25, 31.85], [84.18, 31.82], [84.03, 31.47], [83.5, 31.25], [83.25, 31.35], [83.0, 31.25], [82.47, 31.47], [82.32, 31.82], [82.25, 31.85], [82.0, 31.75], [81.47, 31.97]]]]}, "2025-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[81.25, 32.5], [81.47, 33.03], [82.0, 33.25], [82.25, 33.15], [82.5, 33.25], [82.75, 33.15], [83.0, 33.25], [83.25, 33.15], [83.5, 33.25], [84.03, 33.03], [84.25, 32.5], [84.03, 31.97], [83.68, 31.82], [83.53, 31.47], [83.0, 31.25], [82.47, 31.47], [82.32, 31.82], [82.25, 31.85], [82.0, 31.75], [81.47, 31.97], [81.25, 32.5]]], [[[84.97, 31.97], [84.75, 32.5], [84.97, 33.03], [85.5, 33.25], [86.03, 33.03], [86.25, 32.5], [86.03, 31.97], [85.5, 31.75], [84.97, 31.97]]]]}, "2025-11-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[81.47, 31.97], [81.25, 32.5], [81.47, 33.03], [82.0, 33.25], [82.25, 33.15], [82.5, 33.25], [82.75, 33.15], [82.82, 33.18], [82.97, 33.53], [83.32, 33.68], [83.47, 34.03], [83.82, 34.18], [83.97, 34.53], [84.32, 34.68], [84.47, 35.03], [85.0, 35.25], [85.25, 35.15], [85.5, 35.25], [85.75, 35.15], [86.0, 35.25], [86.53, 35.03], [86.68, 34.68], [87.03, 34.53], [87.25, 34.0], [87.15, 33.75], [87.25, 33.5], [87.03, 32.97], [86.68, 32.82], [86.53, 32.47], [86.18, 32.32], [86.03, 31.97], [85.5, 31.75], [84.97, 31.97], [84.82, 32.32], [84.75, 32.35], [84.68, 32.32], [84.53, 31.97], [84.0, 31.75], [83.75, 31.85], [83.68, 31.82], [83.53, 31.47], [83.0, 31.25], [82.47, 31.47], [82.32, 31.82], [82.25, 31.85], [82.0, 31.75], [81.47, 31.97]]]]}, "2025-11-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[81.47, 31.97], [81.25, 32.5], [81.47, 33.03], [82.0, 33.25], [82.25, 33.15], [82.5, 33.25], [82.75, 33.15], [82.82, 33.18], [82.97, 33.53], [83.32, 33.68], [83.47, 34.03], [83.82, 34.18], [83.97, 34.53], [84.32, 34.68], [84.47, 35.03], [85.0, 35.25], [85.25, 35.15], [85.5, 35.25], [85.75, 35.15], [86.0, 35.25], [86.53, 35.03], [86.68, 34.68], [87.03, 34.53], [87.25, 34.0], [87.15, 33.75], [87.25, 33.5], [87.03, 32.97], [86.68, 32.82], [86.53, 32.47], [86.18, 32.32], [86.03, 31.97], [85.5, 31.75], [84.97, 31.97], [84.82, 32.32], [84.75, 32.35], [84.68, 32.32], [84.53, 31.97], [84.0, 31.75], [83.75, 31.85], [83.68, 31.82], [83.53, 31.47], [83.0, 31.25], [82.47, 31.47], [82.32, 31.82], [82.25, 31.85], [82.0, 31.75], [81.47, 31.97]]]]}, "2025-11-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[82.75, 33.0], [82.97, 33.53], [83.32, 33.68], [83.47, 34.03], [83.82, 34.18], [83.97, 34.53], [84.32, 34.68], [84.47, 35.03], [85.0, 35.25], [85.25, 35.15], [85.5, 35.25], [85.75, 35.15], [86.0, 35.25], [86.53, 35.03], [86.68, 34.68], [87.03, 34.53], [87.25, 34.0], [87.15, 33.75], [87.25, 33.5], [87.03, 32.97], [86.68, 32.82], [86.53, 32.47], [86.0, 32.25], [85.75, 32.35], [85.5, 32.25], [85.25, 32.35], [85.0, 32.25], [84.75, 32.35], [84.68, 32.32], [84.53, 31.97], [84.0, 31.75], [83.47, 31.97], [83.32, 32.32], [82.97, 32.47], [82.75, 33.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.061734381065037}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.621379157142064}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-1.9104433695475223, -1.676933034261026, -2.072312418619731, -1.4995552062987372, -1.9733065287271643, -2.975604087427996, -2.171701812744118, -4.070096456268686, -2.9528244677885027, -5.17319638691248]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-0.5721865336100223, -0.16118596394852602, -0.5368306477864166, 1.501917775472009, 1.0507535298665402, -0.38509216308591476, -0.4861956278483035, 1.1962880452473996, 0.4615786234538177, -1.208647155761696]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.502345980997262, 3.9307257113605942, 3.7087120042501454, 4.827526431465856, 4.503111101480184, 3.7346372680403785, 3.504840368555847, 4.597843975559497, 5.790763364548826, 4.445023352551319]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.578847181092499, 4.037983151843264, 3.839806810828293, 5.455229067162804, 6.093040342334916, 4.694344166351584, 3.9615370144303483, 5.53483599915819, 7.061734381065037, 5.677689863340333]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1257561241868124, 1.2689187568875653, 1.1998511518928858, 1.627098601084294, 1.5395943089271882, 1.2851712551274665, 1.2918172195717543, 1.5401080163286185, 1.8926831437029807, 1.3985417529128759]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.1390666127432423, 1.3118736858126439, 1.2475879216332957, 1.8768622091568734, 1.990477947030595, 1.4392259301776362, 1.3926510614327257, 2.0385568694677545, 2.404532275940876, 1.709912731189603]}}