{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:56:33.450693", "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-Aug-24_to_2025-Aug-27_121.5_16.5"}, "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": 2025080000736}, "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": "August 24 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 27 2025"}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 62175.85630179683}, "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": ["Philippines"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.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": ["Philippine 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": 16.5}, "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": 121.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "121.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 120.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 123.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.25, 16.5], [120.47, 17.03], [121.0, 17.25], [121.25, 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[123.0, 19.25], [123.53, 19.03], [123.75, 18.5], [123.65, 18.25], [123.75, 18.0], [123.65, 17.75], [123.75, 17.5], [123.65, 17.25], [123.68, 17.18], [124.03, 17.03], [124.25, 16.5], [124.03, 15.97], [123.68, 15.82], [123.53, 15.47], [123.18, 15.32], [123.03, 14.97], [122.68, 14.82], [122.53, 14.47], [122.0, 14.25], [121.75, 14.35], [121.5, 14.25], [120.97, 14.47], [120.75, 15.0], [120.96, 15.5], [120.82, 15.82], [120.47, 15.97], [120.25, 16.5]]]]}, "2025-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.25, 16.5], [120.47, 17.03], [121.0, 17.25], [121.25, 17.15], [121.5, 17.25], [121.75, 17.15], [121.82, 17.18], [121.85, 17.25], [121.75, 17.5], [121.85, 17.75], [121.75, 18.0], [121.85, 18.25], [121.75, 18.5], [121.97, 19.03], [122.5, 19.25], [122.75, 19.15], [123.0, 19.25], [123.53, 19.03], [123.75, 18.5], [123.65, 18.25], [123.75, 18.0], [123.65, 17.75], [123.75, 17.5], [123.65, 17.25], [123.68, 17.18], [124.03, 17.03], [124.25, 16.5], [124.03, 15.97], 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maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.827720896403036, 20.678589121500693, 20.669170633951865, 26.79509633382162]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.3348986240521623, -1.476482703711681, -1.5197101744002453, -1.0859985055623156]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.7063847430810029, -2.2375696854821285, -3.425572559875434, -1.0859985055623156]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7378583136250068, -1.8885925661861809, -1.9112973192854934, -1.465357866347564]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9707080978208389, -2.2830602811765353, -3.316685655055373, -1.465357866347564]}}