{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:56:26.315091", "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": "2023-Nov-27_to_2023-Dec-04_95.5_30.0"}, "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": 2023110002094}, "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": "November 27 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 04 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 50803.862891633195}, "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"]}, "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": 30.0}, "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": 95.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "95.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 93.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 96.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 29.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 31.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[96.25, 30.0], [96.15, 29.75], [96.18, 29.68], [96.53, 29.53], [96.75, 29.0], [96.53, 28.47], [96.0, 28.25], [95.47, 28.47], [95.32, 28.82], [95.2, 28.88], [95.03, 28.47], [94.5, 28.25], [94.25, 28.35], [94.0, 28.25], [93.47, 28.47], [93.25, 29.0], [93.35, 29.25], [93.32, 29.32], [92.97, 29.47], [92.75, 30.0], [92.85, 30.25], [92.75, 30.5], [92.97, 31.03], [93.32, 31.18], [93.47, 31.53], [93.82, 31.68], [93.97, 32.03], [94.5, 32.25], [94.75, 32.15], [95.0, 32.25], [95.53, 32.03], [95.75, 31.5], [95.63, 31.2], [96.03, 31.03], [96.25, 30.5], [96.15, 30.25], [96.25, 30.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Tibetan-Plateau", "S.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-11-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.25, 30.0], [94.47, 30.53], [95.0, 30.75], [95.53, 30.53], [95.75, 30.0], [95.53, 29.47], [95.13, 29.3], [95.25, 29.0], [95.03, 28.47], [94.5, 28.25], [93.97, 28.47], [93.75, 29.0], [93.97, 29.53], [94.38, 29.7], [94.25, 30.0]]]]}, "2023-11-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.25, 31.0], [93.47, 31.53], [94.0, 31.75], [94.53, 31.53], [94.75, 31.0], [94.57, 30.57], [95.0, 30.75], [95.25, 30.65], [95.5, 30.75], [96.03, 30.53], [96.25, 30.0], [96.15, 29.75], [96.25, 29.5], [96.03, 28.97], [95.5, 28.75], [95.2, 28.88], [95.03, 28.47], [94.5, 28.25], [93.97, 28.47], [93.75, 29.0], [93.88, 29.3], [93.47, 29.47], [93.25, 30.0], [93.46, 30.5], [93.25, 31.0]]]]}, "2023-11-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.75, 30.5], [92.97, 31.03], [93.32, 31.18], [93.47, 31.53], [93.82, 31.68], [93.97, 32.03], [94.5, 32.25], [94.75, 32.15], [95.0, 32.25], [95.53, 32.03], [95.75, 31.5], [95.63, 31.2], [96.03, 31.03], [96.25, 30.5], [96.15, 30.25], [96.25, 30.0], [96.15, 29.75], [96.18, 29.68], [96.53, 29.53], [96.75, 29.0], [96.53, 28.47], [96.0, 28.25], [95.47, 28.47], [95.32, 28.82], [95.2, 28.88], [95.03, 28.47], [94.5, 28.25], [93.97, 28.47], [93.75, 29.0], [93.88, 29.3], [93.75, 29.35], [93.5, 29.25], [92.97, 29.47], [92.75, 30.0], [92.85, 30.25], [92.75, 30.5]]]]}, "2023-11-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.75, 30.5], [92.97, 31.03], [93.32, 31.18], [93.47, 31.53], [93.82, 31.68], [93.97, 32.03], [94.5, 32.25], [94.75, 32.15], [95.0, 32.25], [95.53, 32.03], [95.75, 31.5], [95.63, 31.2], [96.03, 31.03], [96.25, 30.5], [96.15, 30.25], [96.25, 30.0], [96.15, 29.75], [96.18, 29.68], [96.53, 29.53], [96.75, 29.0], [96.53, 28.47], [96.0, 28.25], [95.47, 28.47], [95.32, 28.82], [95.2, 28.88], [95.03, 28.47], [94.5, 28.25], [94.25, 28.35], [94.0, 28.25], [93.47, 28.47], [93.25, 29.0], [93.35, 29.25], [93.32, 29.32], [92.97, 29.47], [92.75, 30.0], [92.85, 30.25], [92.75, 30.5]]]]}, "2023-12-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.75, 30.5], [92.97, 31.03], [93.5, 31.25], [93.75, 31.15], [93.88, 31.2], [93.75, 31.5], [93.97, 32.03], [94.5, 32.25], 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[93.25, 29.0], [93.35, 29.25], [93.25, 29.5]]]]}, "2023-12-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.85, 29.75], [93.75, 30.0], [93.97, 30.53], [94.5, 30.75], [95.0, 30.54], [95.5, 30.75], [96.03, 30.53], [96.25, 30.0], [96.03, 29.47], [95.5, 29.25], [95.2, 29.38], [95.03, 28.97], [94.68, 28.82], [94.53, 28.47], [94.0, 28.25], [93.47, 28.47], [93.25, 29.0], [93.47, 29.53], [93.82, 29.68], [93.85, 29.75]]]]}, "2023-12-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.75, 30.0], [93.97, 30.53], [94.5, 30.75], [95.0, 30.54], [95.5, 30.75], [96.03, 30.53], [96.25, 30.0], [96.03, 29.47], [95.5, 29.25], [95.2, 29.38], [95.03, 28.97], [94.5, 28.75], [93.97, 28.97], [93.75, 29.5], [93.85, 29.75], [93.75, 30.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.67679714878102}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.943202103797332}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [1.7826956140969514, -2.097598647197458, -6.591776669529509, -6.202952559773564, -6.164461956011223, -5.7095731015458, -4.367596211361388, -4.576285467739751]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [2.989194986475866, 3.149301393807093, 2.7836121886251135, 3.1137520029877805, 3.14995467776464, 2.2277831896415705, -2.500191980765919, -2.7236283635409677]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.359870027318692, 5.028095326282444, 5.174295138449926, 5.015617748169234, 4.900982977974181, 4.860860200525004, 4.5285329264338685, 4.661644317338054]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.939451442424399, 6.2644680696378146, 7.67679714878102, 7.296445622749161, 6.663060289078885, 6.7195911688196475, 4.753591524672743, 4.973448331590532]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3481288244930938, 1.5069192028007272, 1.5319982427010936, 1.5221911119706422, 1.5087923810514248, 1.4899134672804064, 1.336702627387853, 1.3840386881705828]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3879173063601264, 1.7412567947517286, 1.934072243202166, 1.8921867691314809, 1.908394097233177, 2.0289405528447215, 1.3803737070747961, 1.4289780320539271]}}