{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:00:54.443466", "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": "2024-Sep-09_to_2024-Sep-14_97.0_21.0"}, "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": 2024090000253}, "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 09 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 14 2024"}, "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": "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": 170554.64517698236}, "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", "Lao People's Democratic Republic", "Myanmar"]}, "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": 21.0}, "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": 97.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "97.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 94.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 101.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[93.97, 22.03], [94.5, 22.25], [94.75, 22.15], [94.82, 22.18], [94.97, 22.53], [95.5, 22.75], [95.75, 22.65], [96.0, 22.75], 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"IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia", "S.Asia", "S.E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-09-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.75, 21.0], [97.97, 21.53], [98.38, 21.7], [98.25, 22.0], [98.47, 22.53], [99.0, 22.75], [99.25, 22.65], [99.5, 22.75], [99.8, 22.63], [99.97, 23.03], [100.5, 23.25], [101.03, 23.03], [101.25, 22.5], [101.15, 22.25], [101.18, 22.18], [101.53, 22.03], [101.68, 21.68], [102.03, 21.53], [102.25, 21.0], [102.03, 20.47], [101.5, 20.25], [100.97, 20.47], [100.82, 20.82], [100.75, 20.85], [100.68, 20.82], [100.53, 20.47], [100.0, 20.25], [99.5, 20.46], [99.18, 20.32], [99.03, 19.97], [98.5, 19.75], [97.97, 19.97], [97.75, 20.5], [97.85, 20.75], [97.75, 21.0]]]]}, "2024-09-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.75, 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{"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4950721989489124, -1.7635233501780145, -1.981463121530224, -2.0503885082971745, -1.8375908310079343, -1.3415859368396663]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8344200284058882, -2.265255795618744, -2.7494966633046967, -3.203502767218306, -2.3406451735062928, -1.5114326478905002]}}