{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:22.387902", "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-Sep-12_to_2023-Sep-17_113.5_4.5"}, "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": 2023090001383}, "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": "September 12 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 17 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 61676.38088013058}, "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": ["Brunei Darussalam", "Malaysia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": ["South China 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": 4.5}, "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": 113.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "113.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 112.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 114.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 2.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[111.85, 3.75], [111.75, 4.0], [111.85, 4.25], [111.75, 4.5], [111.97, 5.03], [112.5, 5.25], [112.75, 5.15], [112.82, 5.18], [112.97, 5.53], [113.5, 5.75], [113.75, 5.65], [114.0, 5.75], [114.53, 5.53], [114.68, 5.18], [115.03, 5.03], [115.25, 4.5], [115.15, 4.25], [115.25, 4.0], [115.15, 3.75], [115.25, 3.5], [115.03, 2.97], [114.5, 2.75], [114.25, 2.85], [114.0, 2.75], [113.75, 2.85], [113.68, 2.82], [113.54, 2.5], [113.75, 2.0], [113.53, 1.47], [113.0, 1.25], [112.47, 1.47], [112.32, 1.82], [111.97, 1.97], [111.75, 2.5], [111.85, 2.75], [111.75, 3.0], [111.85, 3.25], [111.75, 3.5], [111.85, 3.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-09-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[112.97, 5.53], [113.5, 5.75], [113.75, 5.65], [114.0, 5.75], [114.53, 5.53], [114.75, 5.0], [114.53, 4.47], [114.18, 4.32], [114.03, 3.97], [113.5, 3.75], [113.25, 3.85], [113.0, 3.75], [112.47, 3.97], [112.25, 4.5], [112.47, 5.03], [112.82, 5.18], [112.97, 5.53]]]]}, "2023-09-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[112.25, 4.5], [112.47, 5.03], [112.82, 5.18], [112.97, 5.53], [113.5, 5.75], [113.75, 5.65], [114.0, 5.75], [114.53, 5.53], [114.68, 5.18], [115.03, 5.03], [115.25, 4.5], [115.03, 3.97], [114.5, 3.75], [114.0, 3.96], [113.68, 3.82], [113.53, 3.47], [113.0, 3.25], [112.47, 3.47], [112.25, 4.0], [112.35, 4.25], [112.25, 4.5]]]]}, "2023-09-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.75, 4.0], [111.97, 4.53], [112.32, 4.68], [112.47, 5.03], [112.82, 5.18], [112.97, 5.53], [113.5, 5.75], [113.75, 5.65], [114.0, 5.75], [114.53, 5.53], [114.68, 5.18], [115.03, 5.03], [115.25, 4.5], [115.03, 3.97], [114.5, 3.75], [114.0, 3.96], [113.68, 3.82], [113.53, 3.47], [113.18, 3.32], [113.03, 2.97], [112.5, 2.75], [111.97, 2.97], [111.75, 3.5], [111.85, 3.75], [111.75, 4.0]]]]}, "2023-09-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.75, 3.0], [111.85, 3.25], [111.75, 3.5], [111.85, 3.75], [111.75, 4.0], [111.85, 4.25], [111.75, 4.5], [111.97, 5.03], [112.5, 5.25], [112.75, 5.15], [113.0, 5.25], [113.25, 5.15], [113.5, 5.25], [113.75, 5.15], [114.0, 5.25], [114.25, 5.15], [114.5, 5.25], [115.03, 5.03], [115.25, 4.5], [115.15, 4.25], [115.25, 4.0], [115.15, 3.75], [115.25, 3.5], [115.03, 2.97], [114.5, 2.75], [114.25, 2.85], [114.0, 2.75], [113.75, 2.85], [113.68, 2.82], [113.54, 2.5], [113.75, 2.0], [113.53, 1.47], [113.0, 1.25], [112.47, 1.47], [112.32, 1.82], [111.97, 1.97], [111.75, 2.5], [111.85, 2.75], [111.75, 3.0]]]]}, "2023-09-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.75, 3.0], [111.85, 3.25], [111.75, 3.5], [111.85, 3.75], [111.75, 4.0], [111.85, 4.25], [111.75, 4.5], [111.97, 5.03], [112.5, 5.25], [112.75, 5.15], [113.0, 5.25], [113.25, 5.15], [113.5, 5.25], [113.75, 5.15], [114.0, 5.25], [114.25, 5.15], [114.5, 5.25], [115.03, 5.03], [115.25, 4.5], [115.15, 4.25], [115.25, 4.0], [115.15, 3.75], [115.25, 3.5], [115.03, 2.97], [114.5, 2.75], [114.25, 2.85], [114.0, 2.75], [113.75, 2.85], [113.68, 2.82], [113.54, 2.5], [113.75, 2.0], [113.53, 1.47], [113.0, 1.25], [112.47, 1.47], [112.32, 1.82], [111.97, 1.97], [111.75, 2.5], [111.85, 2.75], [111.75, 3.0]]]]}, "2023-09-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.75, 3.0], [111.85, 3.25], [111.75, 3.5], [111.85, 3.75], [111.75, 4.0], [111.85, 4.25], [111.75, 4.5], [111.97, 5.03], [112.5, 5.25], [112.75, 5.15], [113.0, 5.25], [113.25, 5.15], [113.5, 5.25], [113.75, 5.15], [114.0, 5.25], [114.25, 5.15], [114.5, 5.25], [115.03, 5.03], [115.25, 4.5], [115.15, 4.25], [115.25, 4.0], [115.15, 3.75], [115.25, 3.5], [115.03, 2.97], [114.5, 2.75], [114.25, 2.85], [114.0, 2.75], [113.75, 2.85], [113.68, 2.82], [113.54, 2.5], [113.75, 2.0], [113.53, 1.47], [113.0, 1.25], [112.47, 1.47], [112.32, 1.82], [111.97, 1.97], [111.75, 2.5], [111.85, 2.75], [111.75, 3.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.1426185365369292}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.3184589676251928}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.399174375418, 28.444949041285838, 28.421442299371506, 28.352884105757994, 28.461439236904482, 28.2978422602273]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.556086754258672, 28.79229717118909, 28.573909306579196, 29.230222742494163, 29.015366535717305, 28.9955728255365]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.9810691850329505, 1.0915436494345745, 1.0053471435564703, 1.415057059454603, 1.495879432238831, 1.3342151685189474]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.168280219001133, 1.3763553615675619, 1.159690746172089, 2.092681671512537, 2.1426185365369292, 1.8302802288558269]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.583220698430181, 1.6421527577672739, 1.4447420664494732, 1.7134772314049367, 1.770330707112793, 1.5545094139647455]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8096077746847707, 2.1117486579510905, 1.6014121583199283, 2.369368195635846, 2.4657422129177684, 2.0701764361028996]}}