{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:30:56.771377", "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_107.0_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": 2022050000618}, "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": 62312.28665666514}, "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": ["Vietnam"]}, "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": ["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": 107.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "107.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 106.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 110.75}, "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": 17.75}, "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": [[[[106.25, 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], [109.03, 17.53], [109.18, 17.18], [109.53, 17.03], [109.75, 16.5], [109.53, 15.97], [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], [106.25, 16.5]]]]}, "2022-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[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], [109.03, 17.53], [109.18, 17.18], [109.25, 17.15], [109.5, 17.25], [109.75, 17.15], [110.0, 17.25], [110.53, 17.03], [110.68, 16.68], [111.03, 16.53], [111.25, 16.0], [111.03, 15.47], [110.5, 15.25], [110.25, 15.35], [110.0, 15.25], [109.75, 15.35], [109.5, 15.25], [109.2, 15.37], [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], [106.25, 16.5]]]]}, "2022-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[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], [109.03, 17.53], [109.18, 17.18], [109.25, 17.15], [109.5, 17.25], [109.75, 17.15], [110.0, 17.25], [110.53, 17.03], [110.68, 16.68], [111.03, 16.53], [111.25, 16.0], [111.03, 15.47], [110.5, 15.25], [110.25, 15.35], [110.0, 15.25], [109.75, 15.35], [109.5, 15.25], [109.2, 15.37], [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], [106.25, 16.5]]]]}, "2022-05-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.97, 17.03], [109.5, 17.25], [109.75, 17.15], [110.0, 17.25], [110.53, 17.03], [110.68, 16.68], [111.03, 16.53], [111.25, 16.0], [111.03, 15.47], [110.5, 15.25], [110.25, 15.35], [110.0, 15.25], [109.75, 15.35], [109.5, 15.25], [108.97, 15.47], [108.75, 16.0], [108.85, 16.25], [108.75, 16.5], [108.97, 17.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.284936648271355}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.0923677922792665}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.862203475940987, 25.05690274577546, 25.695895528781477, 27.035818784674575]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.79990856980413, 21.145698940595366, 22.28936083782594, 26.975988807779345]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.291437014397232, -2.403533022669481, -1.7953849972918978, -1.3957800528098232]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.8503615756521867, -4.284936648271355, -2.472293097482975, -1.4613475492461703]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8219786084726621, -2.019325289107222, -1.5630887284934816, -1.547915242825448]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2092378252472327, -2.509951553732045, -1.8084935016898933, -1.6034992008474642]}}