{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:21.541645", "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": "2011-Sep-07_to_2011-Sep-10_119.5_12.5"}, "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": 2011090000383}, "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 07 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 10 2011"}, "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": 102565.3298237422}, "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": ["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": 12.5}, "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": 119.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "119.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 115.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 119.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 10.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 14.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-09-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.97, 14.03], [118.5, 14.25], [119.03, 14.03], [119.18, 13.68], [119.25, 13.65], [119.5, 13.75], [120.03, 13.53], [120.25, 13.0], [120.15, 12.75], [120.25, 12.5], [120.03, 11.97], [119.5, 11.75], [119.25, 11.85], [119.0, 11.75], [118.47, 11.97], [118.32, 12.32], [117.97, 12.47], [117.75, 13.0], [117.85, 13.25], [117.75, 13.5], [117.97, 14.03]]]]}, "2011-09-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.25, 14.0], [115.47, 14.53], [116.0, 14.75], [116.25, 14.65], [116.5, 14.75], [116.75, 14.65], [117.0, 14.75], [117.53, 14.53], [117.75, 14.0], [117.65, 13.75], [117.68, 13.68], [117.75, 13.65], [117.82, 13.68], [117.97, 14.03], [118.5, 14.25], [119.03, 14.03], [119.18, 13.68], [119.25, 13.65], [119.5, 13.75], [120.03, 13.53], [120.25, 13.0], [120.15, 12.75], [120.25, 12.5], [120.15, 12.25], [120.25, 12.0], [120.15, 11.75], [120.25, 11.5], [120.15, 11.25], [120.25, 11.0], [120.15, 10.75], [120.25, 10.5], [120.03, 9.97], [119.5, 9.75], [118.97, 9.97], [118.75, 10.5], [118.85, 10.75], [118.75, 11.0], [118.85, 11.25], [118.82, 11.32], [118.75, 11.35], [118.5, 11.25], [118.25, 11.35], [118.18, 11.32], [118.03, 10.97], [117.5, 10.75], [117.25, 10.85], [117.0, 10.75], [116.47, 10.97], [116.32, 11.32], [115.97, 11.47], [115.75, 12.0], [115.85, 12.25], [115.8, 12.37], [115.5, 12.25], [114.97, 12.47], [114.75, 13.0], [114.97, 13.53], [115.32, 13.68], [115.35, 13.75], [115.25, 14.0]]]]}, "2011-09-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.25, 14.0], [115.47, 14.53], [116.0, 14.75], [116.25, 14.65], [116.5, 14.75], [116.75, 14.65], [117.0, 14.75], [117.53, 14.53], [117.75, 14.0], [117.65, 13.75], [117.68, 13.68], [117.75, 13.65], [117.82, 13.68], [117.97, 14.03], [118.5, 14.25], [119.03, 14.03], [119.18, 13.68], [119.25, 13.65], [119.5, 13.75], [120.03, 13.53], [120.25, 13.0], [120.15, 12.75], [120.25, 12.5], [120.15, 12.25], [120.25, 12.0], [120.15, 11.75], [120.25, 11.5], [120.15, 11.25], [120.25, 11.0], [120.15, 10.75], [120.25, 10.5], [120.03, 9.97], [119.5, 9.75], [118.97, 9.97], [118.75, 10.5], [118.85, 10.75], [118.75, 11.0], [118.85, 11.25], [118.82, 11.32], [118.75, 11.35], [118.5, 11.25], [118.25, 11.35], [118.18, 11.32], [118.03, 10.97], [117.5, 10.75], [117.25, 10.85], [117.0, 10.75], [116.47, 10.97], [116.32, 11.32], [115.97, 11.47], [115.75, 12.0], [115.85, 12.25], [115.8, 12.37], [115.5, 12.25], [114.97, 12.47], [114.75, 13.0], [114.97, 13.53], [115.32, 13.68], [115.35, 13.75], [115.25, 14.0]]]]}, "2011-09-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.25, 14.0], [115.47, 14.53], [116.0, 14.75], [116.25, 14.65], [116.5, 14.75], [116.75, 14.65], [117.0, 14.75], [117.53, 14.53], [117.75, 14.0], [117.65, 13.75], [117.68, 13.68], [117.75, 13.65], [117.82, 13.68], [117.97, 14.03], [118.5, 14.25], [119.03, 14.03], [119.18, 13.68], [119.25, 13.65], [119.5, 13.75], [120.03, 13.53], [120.25, 13.0], [120.15, 12.75], [120.25, 12.5], [120.15, 12.25], [120.25, 12.0], [120.15, 11.75], [120.25, 11.5], [120.15, 11.25], [120.25, 11.0], 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"evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.36495838117264, 25.7108979542449, 25.604572860212386, 25.75294076674112]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9139016810268098, -1.0280583886651016, -1.0168598381888334, -1.0194390231284156]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.9558290893136814, -1.352235819824898, -1.3780833822762588, -1.279916773494051]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2011546605943197, -1.4489580477849073, -1.4873734223629875, -1.5371126453394486]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.2380086521804572, -1.680665553181098, -1.8002245945093878, -1.9012735048435838]}}