{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:55.133028", "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": "2014-Mar-20_to_2014-Mar-24_120.0_13.5"}, "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": 2014030000818}, "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": "March 20 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 24 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 62909.58826567186}, "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", "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": 13.5}, "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": 120.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "120.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 119.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 124.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 13.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-03-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.0, 14.25], [120.53, 14.03], [120.75, 13.5], [120.53, 12.97], [120.0, 12.75], [119.47, 12.97], [119.25, 13.5], [119.47, 14.03], [120.0, 14.25]]]]}, "2014-03-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.5, 14.75], [120.8, 14.63], [120.85, 14.75], [120.75, 15.0], [120.97, 15.53], [121.5, 15.75], [122.0, 15.54], [122.5, 15.75], [122.75, 15.65], [123.0, 15.75], [123.53, 15.53], [123.68, 15.18], [124.03, 15.03], [124.25, 14.5], [124.03, 13.97], [123.5, 13.75], [123.25, 13.85], [123.0, 13.75], [122.75, 13.85], [122.68, 13.82], [122.53, 13.47], [122.18, 13.32], [122.03, 12.97], [121.5, 12.75], [121.25, 12.85], [121.0, 12.75], [120.5, 12.96], [120.0, 12.75], [119.47, 12.97], [119.25, 13.5], [119.47, 14.03], [119.82, 14.18], [119.97, 14.53], [120.5, 14.75]]]]}, "2014-03-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.5, 14.75], [120.8, 14.63], [120.85, 14.75], [120.75, 15.0], [120.97, 15.53], [121.5, 15.75], [122.0, 15.54], [122.5, 15.75], [122.75, 15.65], [123.0, 15.75], [123.53, 15.53], [123.68, 15.18], [123.75, 15.15], [123.82, 15.18], [123.97, 15.53], [124.5, 15.75], [125.03, 15.53], [125.25, 15.0], [125.15, 14.75], [125.25, 14.5], [125.03, 13.97], [124.68, 13.82], [124.53, 13.47], [124.0, 13.25], [123.75, 13.35], [123.5, 13.25], [123.25, 13.35], [123.18, 13.32], [123.03, 12.97], [122.5, 12.75], [122.0, 12.96], [121.5, 12.75], [121.25, 12.85], [121.0, 12.75], [120.5, 12.96], [120.0, 12.75], [119.47, 12.97], [119.25, 13.5], [119.47, 14.03], [119.82, 14.18], [119.97, 14.53], [120.5, 14.75]]]]}, "2014-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.5, 14.75], [120.8, 14.63], [120.85, 14.75], [120.75, 15.0], [120.97, 15.53], [121.5, 15.75], [122.0, 15.54], [122.5, 15.75], [122.75, 15.65], [123.0, 15.75], [123.53, 15.53], [123.68, 15.18], [123.75, 15.15], [123.82, 15.18], [123.97, 15.53], [124.5, 15.75], [125.03, 15.53], [125.25, 15.0], [125.15, 14.75], [125.25, 14.5], [125.03, 13.97], [124.68, 13.82], [124.53, 13.47], [124.0, 13.25], [123.75, 13.35], [123.5, 13.25], [123.25, 13.35], [123.18, 13.32], [123.03, 12.97], [122.5, 12.75], [122.0, 12.96], [121.5, 12.75], [121.25, 12.85], [121.0, 12.75], [120.5, 12.96], [120.0, 12.75], [119.47, 12.97], [119.25, 13.5], [119.47, 14.03], [119.82, 14.18], [119.97, 14.53], [120.5, 14.75]]]]}, "2014-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.5, 14.75], [120.8, 14.63], [120.85, 14.75], [120.75, 15.0], [120.97, 15.53], [121.5, 15.75], [122.0, 15.54], [122.5, 15.75], [122.75, 15.65], [123.0, 15.75], [123.53, 15.53], [123.68, 15.18], [123.75, 15.15], [123.82, 15.18], [123.97, 15.53], [124.5, 15.75], [125.03, 15.53], [125.25, 15.0], [125.15, 14.75], [125.25, 14.5], [125.03, 13.97], [124.68, 13.82], [124.53, 13.47], [124.0, 13.25], [123.75, 13.35], [123.5, 13.25], [123.25, 13.35], [123.18, 13.32], [123.03, 12.97], [122.5, 12.75], [122.0, 12.96], [121.5, 12.75], [121.25, 12.85], [121.0, 12.75], [120.5, 12.96], [120.0, 12.75], [119.47, 12.97], [119.25, 13.5], [119.47, 14.03], [119.82, 14.18], [119.97, 14.53], [120.5, 14.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.682371316908359}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.0793079590128134}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.6227998661505, 25.131660085433396, 25.414453276953395, 25.26348634091522, 25.214916327950164]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.6227998661505, 23.31643313189892, 23.207464193974545, 23.326789683850507, 23.278684250510537]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.6721278444783252, -1.1165049282911557, -0.9524677187175657, -1.1141279739638268, -1.1659197341017002]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.6721278444783252, -1.4600172687933082, -1.3645478677478877, -1.6586862072890654, -1.682371316908359]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4846477989703686, -1.979832368202123, -1.6964640973089364, -1.9604152305692892, -2.0012398594550858]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4846477989703686, -2.6994265065200875, -2.012502120861175, -2.6696193622974587, -2.7372643700251613]}}