{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:42.802423", "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": "2016-Feb-06_to_2016-Feb-08_124.5_20.5"}, "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": 2016020000239}, "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": "February 06 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 08 2016"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 181310.61535068354}, "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": ["E.Asia", "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", "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": 20.5}, "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": 124.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "124.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 121.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 126.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 24.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.85, 20.25], [120.75, 20.5], [120.85, 20.75], [120.75, 21.0], [120.85, 21.25], [120.75, 21.5], [120.97, 22.03], [121.32, 22.18], [121.47, 22.53], [121.82, 22.68], [121.97, 23.03], [122.5, 23.25], [122.75, 23.15], [122.82, 23.18], [122.97, 23.53], [123.5, 23.75], [123.75, 23.65], [123.82, 23.68], [123.97, 24.03], [124.5, 24.25], [124.75, 24.15], [125.0, 24.25], [125.25, 24.15], [125.32, 24.18], [125.47, 24.53], [125.82, 24.68], [125.97, 25.03], [126.5, 25.25], [127.03, 25.03], [127.25, 24.5], [127.15, 24.25], [127.25, 24.0], [127.15, 23.75], [127.25, 23.5], [127.03, 22.97], [126.5, 22.75], [126.25, 22.85], [126.18, 22.82], [126.03, 22.47], [125.68, 22.32], [125.65, 22.25], [125.75, 22.0], [125.53, 21.47], [125.18, 21.32], [125.15, 21.25], [125.25, 21.0], [125.15, 20.75], [125.25, 20.5], [125.03, 19.97], [124.68, 19.82], [124.53, 19.47], [124.0, 19.25], [123.75, 19.35], [123.68, 19.32], [123.65, 19.25], [123.75, 19.0], [123.53, 18.47], [123.18, 18.32], [123.03, 17.97], [122.68, 17.82], [122.53, 17.47], [122.0, 17.25], [121.47, 17.47], [121.25, 18.0], [121.35, 18.25], [121.25, 18.5], [121.35, 18.75], [121.32, 18.82], [120.97, 18.97], [120.75, 19.5], [120.85, 19.75], [120.75, 20.0], [120.85, 20.25]]]]}, "2016-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.85, 20.25], [120.75, 20.5], [120.85, 20.75], [120.75, 21.0], [120.85, 21.25], [120.75, 21.5], [120.97, 22.03], [121.32, 22.18], [121.47, 22.53], [121.82, 22.68], [121.97, 23.03], [122.5, 23.25], [122.75, 23.15], [122.82, 23.18], [122.97, 23.53], [123.5, 23.75], [123.75, 23.65], [123.82, 23.68], [123.97, 24.03], [124.5, 24.25], [124.75, 24.15], [125.0, 24.25], [125.25, 24.15], [125.32, 24.18], [125.47, 24.53], [125.82, 24.68], [125.97, 25.03], [126.5, 25.25], [127.03, 25.03], [127.25, 24.5], [127.15, 24.25], [127.25, 24.0], [127.15, 23.75], [127.25, 23.5], [127.03, 22.97], [126.5, 22.75], [126.25, 22.85], [126.18, 22.82], [126.03, 22.47], [125.68, 22.32], [125.65, 22.25], [125.75, 22.0], [125.53, 21.47], [125.18, 21.32], [125.15, 21.25], [125.25, 21.0], [125.15, 20.75], [125.25, 20.5], [125.03, 19.97], [124.68, 19.82], [124.53, 19.47], [124.0, 19.25], [123.75, 19.35], [123.68, 19.32], [123.65, 19.25], [123.75, 19.0], [123.53, 18.47], [123.18, 18.32], [123.03, 17.97], [122.68, 17.82], [122.53, 17.47], [122.0, 17.25], [121.47, 17.47], [121.25, 18.0], [121.35, 18.25], [121.25, 18.5], [121.35, 18.75], [121.32, 18.82], [120.97, 18.97], [120.75, 19.5], [120.85, 19.75], [120.75, 20.0], [120.85, 20.25]]]]}, "2016-02-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.85, 20.25], [120.75, 20.5], [120.85, 20.75], [120.75, 21.0], [120.85, 21.25], [120.75, 21.5], [120.97, 22.03], [121.32, 22.18], [121.47, 22.53], [121.82, 22.68], [121.97, 23.03], [122.5, 23.25], [122.75, 23.15], [122.82, 23.18], [122.97, 23.53], [123.5, 23.75], [123.75, 23.65], [123.82, 23.68], [123.97, 24.03], [124.5, 24.25], [124.75, 24.15], [125.0, 24.25], [125.25, 24.15], [125.32, 24.18], [125.47, 24.53], [125.82, 24.68], [125.97, 25.03], [126.5, 25.25], [127.03, 25.03], [127.25, 24.5], [127.15, 24.25], [127.25, 24.0], [127.15, 23.75], [127.25, 23.5], [127.03, 22.97], [126.5, 22.75], [126.25, 22.85], [126.18, 22.82], [126.03, 22.47], [125.68, 22.32], [125.65, 22.25], [125.75, 22.0], [125.53, 21.47], [125.18, 21.32], [125.15, 21.25], [125.25, 21.0], [125.15, 20.75], [125.25, 20.5], [125.03, 19.97], [124.68, 19.82], [124.53, 19.47], [124.0, 19.25], [123.75, 19.35], [123.68, 19.32], [123.65, 19.25], [123.75, 19.0], [123.53, 18.47], [123.18, 18.32], [123.03, 17.97], [122.68, 17.82], [122.53, 17.47], [122.0, 17.25], [121.47, 17.47], [121.25, 18.0], [121.35, 18.25], [121.25, 18.5], [121.35, 18.75], [121.32, 18.82], [120.97, 18.97], [120.75, 19.5], [120.85, 19.75], [120.75, 20.0], [120.85, 20.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.529843348673353}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.0722364094482333}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.32690610700132, 18.502808814528237, 19.012658668330914]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.210175082879744, 15.349850423329485, 16.19186321899616]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.661763282597598, -3.5193921259355667, -3.035553819811536]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.5031980321211904, -4.529843348673353, -3.6166168782517616]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6387385480179943, -2.1276641510637537, -1.806167821621034]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8198938163562788, -2.3059833022449214, -2.183136436149237]}}