{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:20:07.754598", "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": "2022-May-16_to_2022-May-19_109.5_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": 2022050000650}, "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": "May 16 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 19 2022"}, "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": 92045.33517569854}, "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": ["Viet Nam"]}, "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": ["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": 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": 109.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "109.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 107.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 111.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[110.0, 17.25], [110.25, 17.15], [110.5, 17.25], [110.75, 17.15], [111.0, 17.25], [111.25, 17.15], [111.5, 17.25], [112.03, 17.03], [112.25, 16.5], [112.03, 15.97], [111.68, 15.82], [111.53, 15.47], [111.18, 15.32], [111.03, 14.97], [110.5, 14.75], [110.25, 14.85], [110.0, 14.75], [109.75, 14.85], [109.68, 14.82], [109.65, 14.75], [109.75, 14.5], [109.53, 13.97], [109.0, 13.75], [108.47, 13.97], [108.32, 14.32], [107.97, 14.47], [107.82, 14.82], [107.75, 14.85], [107.5, 14.75], [106.97, 14.97], [106.75, 15.5], [106.85, 15.75], [106.82, 15.82], [106.47, 15.97], [106.25, 16.5], [106.47, 17.03], [106.82, 17.18], [106.97, 17.53], [107.32, 17.68], [107.47, 18.03], [108.0, 18.25], [108.53, 18.03], [108.68, 17.68], [108.75, 17.65], [109.0, 17.75], [109.53, 17.53], [109.68, 17.18], [109.75, 17.15], [110.0, 17.25]]]]}}, "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": {"2022-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[106.47, 15.97], [106.25, 16.5], [106.47, 17.03], [106.82, 17.18], [106.97, 17.53], [107.32, 17.68], [107.47, 18.03], [108.0, 18.25], [108.53, 18.03], [108.68, 17.68], [108.75, 17.65], [109.0, 17.75], [109.53, 17.53], [109.68, 17.18], [110.03, 17.03], [110.25, 16.5], [110.03, 15.97], [109.5, 15.75], [109.25, 15.85], [109.18, 15.82], [109.15, 15.75], [109.25, 15.5], [109.15, 15.25], [109.25, 15.0], [109.03, 14.47], [108.5, 14.25], [107.97, 14.47], [107.82, 14.82], [107.75, 14.85], [107.5, 14.75], [106.97, 14.97], [106.75, 15.5], [106.85, 15.75], [106.82, 15.82], [106.47, 15.97]]]]}, "2022-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[106.47, 15.97], [106.25, 16.5], [106.47, 17.03], [106.82, 17.18], [106.97, 17.53], [107.32, 17.68], [107.47, 18.03], [108.0, 18.25], [108.53, 18.03], [108.68, 17.68], [108.75, 17.65], [109.0, 17.75], [109.53, 17.53], [109.68, 17.18], [109.75, 17.15], [110.0, 17.25], [110.25, 17.15], [110.5, 17.25], [110.75, 17.15], [111.0, 17.25], [111.25, 17.15], [111.5, 17.25], [112.03, 17.03], [112.25, 16.5], [112.03, 15.97], [111.68, 15.82], [111.53, 15.47], [111.18, 15.32], [111.03, 14.97], [110.5, 14.75], [110.25, 14.85], [110.0, 14.75], [109.75, 14.85], [109.68, 14.82], [109.65, 14.75], [109.75, 14.5], [109.53, 13.97], [109.0, 13.75], [108.47, 13.97], [108.32, 14.32], [107.97, 14.47], [107.82, 14.82], [107.75, 14.85], [107.5, 14.75], [106.97, 14.97], [106.75, 15.5], [106.85, 15.75], [106.82, 15.82], [106.47, 15.97]]]]}, "2022-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[106.47, 15.97], [106.25, 16.5], [106.47, 17.03], [106.82, 17.18], [106.97, 17.53], [107.32, 17.68], [107.47, 18.03], [108.0, 18.25], [108.53, 18.03], [108.68, 17.68], [108.75, 17.65], [109.0, 17.75], [109.53, 17.53], [109.68, 17.18], [109.75, 17.15], [110.0, 17.25], [110.25, 17.15], [110.5, 17.25], [110.75, 17.15], [111.0, 17.25], [111.25, 17.15], [111.5, 17.25], [112.03, 17.03], [112.25, 16.5], 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-1.392290923971022]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.7390664881853013, -4.252977248378045, -2.547609662023092, -1.5539593969733687]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7089328155235377, -1.871592250087971, -1.5103482819416911, -1.5051638818817796]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1332782121340883, -2.40618436060399, -1.700237079934936, -1.7333245498133147]}}