{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:22.222274", "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-12_to_2011-Sep-24_113.5_-10.0"}, "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": 2011090000562}, "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 12 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 24 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 13}, "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": 191892.2391480959}, "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": ["Indonesia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Australia", "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": ["Indian Ocean"]}, "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": -10.0}, "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": 113.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "113.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 108.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 116.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -11.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -6.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-09-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[112.47, -10.53], [112.25, -10.0], [112.47, -9.47], [113.0, -9.25], [113.25, -9.35], [113.5, -9.25], [113.75, -9.35], [114.0, -9.25], [114.53, -9.47], [114.75, -10.0], [114.53, -10.53], [114.0, -10.75], [113.75, -10.65], [113.5, -10.75], [113.25, -10.65], [113.0, -10.75], [112.47, -10.53]]]]}, "2011-09-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.97, -8.47], [109.32, -8.32], [109.47, -7.97], [110.0, -7.75], [110.25, -7.85], [110.5, -7.75], [111.03, -7.97], [111.18, -8.32], [111.25, -8.35], [111.5, -8.25], [111.75, -8.35], [112.0, -8.25], [112.53, -8.47], [112.68, -8.82], [112.75, -8.85], [113.0, -8.75], [113.25, -8.85], [113.5, -8.75], [113.75, -8.85], [114.0, -8.75], [114.53, -8.97], [114.68, -9.32], [114.75, -9.35], [115.0, -9.25], [115.53, -9.47], [115.75, -10.0], [115.53, -10.53], [115.18, -10.68], [115.03, -11.03], [114.5, -11.25], [114.25, -11.15], [114.0, -11.25], [113.75, -11.15], [113.5, -11.25], [112.97, -11.03], [112.82, -10.68], [112.75, -10.65], [112.5, -10.75], [112.25, -10.65], [112.0, -10.75], [111.75, -10.65], [111.5, -10.75], [110.97, -10.53], [110.82, -10.18], [110.75, -10.15], [110.5, -10.25], [110.25, -10.15], [110.0, -10.25], [109.75, -10.15], [109.5, -10.25], [108.97, -10.03], [108.75, -9.5], [108.85, -9.25], [108.75, -9.0], [108.97, -8.47]]]]}, "2011-09-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.85, -8.75], [108.75, -8.5], [108.97, -7.97], [109.5, -7.75], [109.75, -7.85], [110.0, -7.75], [110.25, -7.85], [110.5, -7.75], [111.03, -7.97], [111.18, -8.32], [111.25, -8.35], [111.5, -8.25], [111.75, -8.35], [112.0, -8.25], [112.53, -8.47], [112.68, -8.82], [112.75, -8.85], [113.0, -8.75], [113.25, -8.85], [113.5, -8.75], [113.75, -8.85], [114.0, -8.75], [114.53, -8.97], [114.68, -9.32], [114.75, -9.35], [115.0, -9.25], [115.53, -9.47], [115.75, -10.0], [115.53, -10.53], [115.18, -10.68], [115.03, -11.03], [114.5, -11.25], [114.25, -11.15], [114.0, -11.25], [113.75, -11.15], [113.5, -11.25], [113.25, -11.15], [113.0, -11.25], [112.47, -11.03], [112.32, -10.68], [112.25, -10.65], [112.0, -10.75], [111.75, -10.65], [111.5, -10.75], [111.25, -10.65], [111.0, -10.75], [110.47, -10.53], [110.32, -10.18], [110.25, -10.15], [110.0, -10.25], [109.75, -10.15], [109.5, -10.25], [108.97, -10.03], [108.75, -9.5], [108.85, -9.25], [108.75, -9.0], [108.85, -8.75]]]]}, "2011-09-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.85, -8.75], [108.75, -8.5], [108.97, -7.97], [109.5, -7.75], [109.75, -7.85], [110.0, -7.75], [110.25, -7.85], [110.5, -7.75], [111.03, -7.97], [111.18, -8.32], [111.25, -8.35], [111.5, -8.25], [111.75, -8.35], [112.0, -8.25], [112.25, -8.35], [112.5, -8.25], [112.75, -8.35], [113.0, -8.25], [113.25, -8.35], [113.5, -8.25], [113.75, -8.35], [114.0, -8.25], [114.25, -8.35], [114.5, -8.25], [115.03, -8.47], [115.18, -8.82], [115.53, -8.97], [115.68, -9.32], [115.75, -9.35], [116.0, -9.25], [116.53, -9.47], [116.75, -10.0], [116.53, -10.53], [116.0, -10.75], [115.75, -10.65], [115.68, -10.68], [115.53, -11.03], [115.0, -11.25], [114.75, -11.15], [114.5, -11.25], [114.25, -11.15], [114.18, -11.18], [114.03, -11.53], [113.5, -11.75], [113.25, -11.65], [113.0, -11.75], [112.75, -11.65], [112.5, -11.75], [111.97, -11.53], [111.82, -11.18], [111.47, -11.03], [111.32, -10.68], [111.25, -10.65], [111.0, -10.75], [110.47, -10.53], [110.32, -10.18], [110.25, -10.15], [110.0, -10.25], [109.75, -10.15], [109.5, -10.25], [108.97, -10.03], [108.75, -9.5], [108.85, -9.25], [108.75, -9.0], [108.85, -8.75]]]]}, "2011-09-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.85, -8.75], [108.75, -8.5], [108.97, -7.97], [109.5, -7.75], [109.75, -7.85], [110.0, -7.75], [110.25, -7.85], [110.5, -7.75], [111.03, -7.97], [111.18, -8.32], [111.25, -8.35], [111.5, -8.25], [111.75, -8.35], [112.0, -8.25], [112.25, -8.35], [112.5, -8.25], [112.75, -8.35], [113.0, -8.25], [113.25, -8.35], [113.5, -8.25], [113.75, -8.35], [114.0, -8.25], [114.25, -8.35], [114.5, -8.25], [115.03, -8.47], [115.18, -8.82], [115.53, -8.97], [115.68, -9.32], [115.75, -9.35], [116.0, -9.25], [116.53, -9.47], [116.75, -10.0], [116.53, -10.53], [116.0, -10.75], [115.75, -10.65], [115.68, -10.68], [115.65, -10.75], [115.75, -11.0], [115.53, -11.53], [115.0, -11.75], [114.75, -11.65], [114.5, -11.75], [114.25, -11.65], [114.0, -11.75], [113.75, -11.65], [113.5, -11.75], [113.25, -11.65], [113.0, -11.75], [112.75, -11.65], [112.5, -11.75], [112.25, -11.65], [112.0, -11.75], [111.47, -11.53], [111.32, -11.18], [110.97, -11.03], [110.82, -10.68], [110.47, -10.53], [110.32, -10.18], [110.25, -10.15], [110.0, -10.25], [109.75, -10.15], [109.5, -10.25], [108.97, -10.03], [108.75, -9.5], [108.85, -9.25], [108.75, -9.0], [108.85, -8.75]]]]}, "2011-09-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.85, -8.75], [108.75, -8.5], [108.97, -7.97], [109.5, -7.75], [109.75, -7.85], [110.0, -7.75], [110.25, -7.85], [110.5, -7.75], [111.03, -7.97], [111.18, -8.32], [111.25, -8.35], [111.5, -8.25], [111.75, -8.35], [112.0, -8.25], [112.25, -8.35], [112.5, -8.25], [112.75, -8.35], [113.0, -8.25], [113.25, -8.35], [113.5, -8.25], [113.75, -8.35], [114.0, -8.25], [114.25, -8.35], [114.5, -8.25], [115.03, -8.47], [115.18, -8.82], [115.53, -8.97], [115.68, -9.32], [115.75, -9.35], [116.0, -9.25], [116.53, -9.47], [116.75, -10.0], [116.53, -10.53], [116.0, -10.75], [115.75, -10.65], [115.68, -10.68], [115.65, -10.75], [115.75, -11.0], [115.53, -11.53], [115.0, -11.75], [114.75, -11.65], [114.5, -11.75], [114.25, -11.65], [114.0, -11.75], [113.75, -11.65], [113.5, -11.75], [113.25, -11.65], [113.0, -11.75], [112.75, -11.65], [112.5, -11.75], [112.25, -11.65], [112.0, -11.75], [111.47, -11.53], [111.32, -11.18], [110.97, -11.03], [110.82, -10.68], [110.47, -10.53], [110.32, -10.18], [110.25, -10.15], [110.0, -10.25], [109.75, -10.15], [109.5, -10.25], [108.97, -10.03], [108.75, -9.5], [108.85, -9.25], [108.75, -9.0], [108.85, -8.75]]]]}, "2011-09-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.0, -8.25], [111.25, -8.35], [111.5, -8.25], [111.75, -8.35], [112.0, -8.25], [112.5, -8.46], [113.0, -8.25], [113.5, -8.46], [114.0, -8.25], [114.53, -8.47], [114.68, -8.82], [114.75, -8.85], [115.0, -8.75], [115.53, -8.97], [115.75, -9.5], [115.65, -9.75], [115.75, -10.0], [115.65, -10.25], [115.75, -10.5], [115.65, -10.75], [115.75, -11.0], [115.53, -11.53], [115.18, -11.68], [115.03, -12.03], [114.5, -12.25], [113.97, -12.03], [113.82, -11.68], [113.75, -11.65], [113.5, -11.75], [113.25, -11.65], [113.0, -11.75], [112.75, -11.65], [112.5, -11.75], [112.25, -11.65], [112.0, -11.75], [111.47, -11.53], [111.32, -11.18], [110.97, -11.03], [110.75, -10.5], [110.85, -10.25], [110.82, -10.18], [110.75, -10.15], [110.5, -10.25], [109.97, -10.03], [109.75, -9.5], [109.97, -8.97], [110.32, -8.82], [110.47, -8.47], [111.0, -8.25]]]]}, "2011-09-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.47, -8.47], [110.0, -8.25], [110.25, -8.35], [110.5, -8.25], [110.75, -8.35], [111.0, -8.25], [111.25, -8.35], [111.5, -8.25], [111.75, -8.35], [112.0, -8.25], [112.25, -8.35], [112.5, -8.25], [113.03, -8.47], [113.18, -8.82], [113.25, -8.85], [113.5, -8.75], [113.75, -8.85], [114.0, -8.75], [114.25, -8.85], [114.5, -8.75], [115.03, -8.97], [115.18, -9.32], [115.53, -9.47], [115.75, -10.0], [115.65, -10.25], [115.75, -10.5], [115.65, -10.75], [115.75, -11.0], [115.53, -11.53], [115.18, -11.68], [115.03, -12.03], [114.5, -12.25], [114.25, -12.15], [114.0, -12.25], [113.75, -12.15], [113.5, -12.25], [113.25, -12.15], [113.0, -12.25], [112.75, -12.15], [112.5, -12.25], [111.97, -12.03], [111.82, -11.68], [111.47, -11.53], [111.32, -11.18], [110.97, -11.03], [110.75, -10.5], [110.85, -10.25], [110.82, -10.18], [110.75, -10.15], [110.5, -10.25], [110.25, -10.15], [110.0, -10.25], [109.47, -10.03], [109.25, -9.5], [109.35, -9.25], [109.25, -9.0], [109.47, -8.47]]]]}, "2011-09-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.25, -8.5], [108.47, -7.97], [109.0, -7.75], [109.25, -7.85], [109.5, -7.75], [109.75, -7.85], [110.0, -7.75], [110.25, -7.85], [110.5, -7.75], [111.03, -7.97], [111.18, -8.32], [111.25, -8.35], [111.5, -8.25], [111.75, -8.35], [112.0, -8.25], [112.25, -8.35], [112.5, -8.25], [112.75, -8.35], [113.0, -8.25], [113.25, -8.35], [113.5, -8.25], [113.75, -8.35], [114.0, -8.25], [114.25, -8.35], [114.5, -8.25], [114.75, -8.35], [115.0, -8.25], [115.53, -8.47], [115.75, -9.0], [115.65, -9.25], [115.75, -9.5], [115.65, -9.75], [115.75, -10.0], [115.65, -10.25], [115.75, -10.5], [115.65, -10.75], [115.75, -11.0], [115.53, -11.53], [115.18, -11.68], [115.03, -12.03], [114.5, -12.25], [114.25, -12.15], [114.0, -12.25], [113.75, -12.15], [113.5, -12.25], [113.25, -12.15], [113.0, -12.25], [112.75, -12.15], [112.5, -12.25], [111.97, -12.03], [111.82, -11.68], [111.47, -11.53], [111.32, -11.18], [110.97, -11.03], [110.75, -10.5], [110.85, -10.25], [110.82, -10.18], [110.75, -10.15], [110.5, -10.25], [110.25, -10.15], [110.0, -10.25], [109.47, -10.03], [109.32, -9.68], [108.97, -9.53], [108.82, -9.18], [108.47, -9.03], [108.25, -8.5]]]]}, "2011-09-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.25, -8.5], [108.47, -7.97], [109.0, -7.75], [109.25, -7.85], [109.5, -7.75], [109.75, -7.85], [109.88, -7.8], [109.75, -7.5], [109.97, -6.97], [110.5, -6.75], [110.75, -6.85], [110.82, -6.82], [110.97, -6.47], [111.5, -6.25], [112.03, -6.47], [112.25, -7.0], [112.03, -7.53], [111.68, -7.68], [111.65, -7.75], [111.75, -8.0], [111.63, -8.3], [111.75, -8.35], [112.0, -8.25], [112.25, -8.35], [112.5, -8.25], [112.75, -8.35], [113.0, -8.25], [113.25, -8.35], [113.5, -8.25], [113.75, -8.35], [114.0, -8.25], [114.25, -8.35], [114.5, -8.25], [114.75, -8.35], [115.0, -8.25], [115.53, -8.47], [115.75, -9.0], [115.65, -9.25], [115.75, -9.5], [115.65, -9.75], [115.75, -10.0], [115.65, -10.25], [115.75, -10.5], [115.65, -10.75], [115.75, -11.0], [115.53, -11.53], [115.18, -11.68], [115.03, -12.03], [114.5, -12.25], [114.25, -12.15], [114.0, -12.25], [113.75, -12.15], [113.5, -12.25], [113.25, -12.15], [113.0, -12.25], [112.75, -12.15], [112.5, -12.25], [111.97, -12.03], [111.75, -11.5], [111.85, -11.25], [111.82, -11.18], [111.47, -11.03], [111.32, -10.68], [110.97, -10.53], [110.82, -10.18], [110.75, -10.15], [110.5, -10.25], [110.25, -10.15], [110.0, -10.25], [109.47, -10.03], [109.32, -9.68], [108.97, -9.53], [108.82, -9.18], [108.47, -9.03], [108.25, -8.5]]]]}, "2011-09-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.25, -8.5], [108.47, -7.97], [109.0, -7.75], [109.25, -7.85], [109.5, -7.75], [109.75, -7.85], [109.88, -7.8], [109.75, -7.5], [109.97, -6.97], [110.5, -6.75], [110.75, -6.85], [110.82, -6.82], [110.97, -6.47], [111.5, -6.25], [112.03, -6.47], [112.25, -7.0], [112.03, -7.53], [111.68, -7.68], [111.65, -7.75], [111.75, -8.0], [111.63, -8.3], [111.75, -8.35], [112.0, -8.25], [112.25, -8.35], [112.5, -8.25], [112.75, -8.35], [113.0, -8.25], [113.25, -8.35], [113.5, -8.25], [113.75, -8.35], [114.0, -8.25], [114.25, -8.35], [114.5, -8.25], [114.75, -8.35], [115.0, -8.25], [115.53, -8.47], [115.75, -9.0], [115.65, -9.25], [115.75, -9.5], [115.65, -9.75], [115.75, -10.0], [115.53, -10.53], [115.18, -10.68], [115.03, -11.03], [114.68, -11.18], [114.53, -11.53], [114.0, -11.75], [113.75, -11.65], [113.68, -11.68], [113.53, -12.03], [113.0, -12.25], [112.47, -12.03], [112.32, -11.68], [111.97, -11.53], [111.82, -11.18], [111.47, -11.03], [111.32, -10.68], [110.97, -10.53], [110.82, -10.18], [110.75, -10.15], [110.5, -10.25], [110.25, -10.15], [110.0, -10.25], [109.47, -10.03], [109.32, -9.68], [108.97, -9.53], [108.82, -9.18], [108.47, -9.03], [108.25, -8.5]]]]}, "2011-09-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.75, -7.5], [109.97, -6.97], [110.5, -6.75], [110.75, -6.85], [110.82, -6.82], [110.97, -6.47], [111.5, -6.25], [112.03, -6.47], [112.25, -7.0], [112.03, -7.53], [111.68, -7.68], [111.65, -7.75], [111.75, -8.0], [111.53, -8.53], [111.0, -8.75], [110.47, -8.53], [110.32, -8.18], [109.97, -8.03], [109.75, -7.5]]]]}, "2011-09-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.5, -6.25], [112.03, -6.47], [112.25, -7.0], [112.03, -7.53], [111.5, -7.75], [110.97, -7.53], [110.75, -7.0], [110.97, -6.47], [111.5, -6.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.7772407285422105}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -0.9919816104491584}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.831063694977445, 24.62666760983609, 24.61557217898826, 24.588479425698495, 24.52080829167562, 24.5233048670259, 24.751344558107576, 24.774907785440178, 24.621888379299378, 24.5556822391178, 24.642257675449912, 23.927025349263545, 26.665073336169314]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.797822368461766, 24.05425397249985, 24.044902393645486, 23.909815300783805, 23.822586287941135, 23.947693124378475, 24.208201392462797, 24.304153306589797, 24.011032389559887, 21.867556214517094, 22.111561696387923, 21.46150908896908, 26.665073336169314]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.7110334401165043, -0.8889921389847982, -0.9107354511142951, -0.95875257891602, -1.0632387625836799, -1.0771604304476265, -0.9123236459307225, -0.9084657983588212, -1.0167660371076832, -1.0754969464678132, -0.9663296717214337, -1.4139161138376437, -1.1011894755151843]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.7270664172498869, -1.1393381881946993, -1.173184255597846, -1.2239707107946174, -1.3710683218226905, -1.3459216734711958, -1.148559705676746, -1.1151080557042974, -1.2379796037449182, -1.4878486069507062, -1.2317255410416124, -1.7772407285422105, -1.1011894755151843]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.170051366080982, -1.4047869491867935, -1.4557924925064656, -1.5571900353222343, -1.747143265684834, -1.79511128997097, -1.553619747911486, -1.5803577162472622, -1.7400132875443541, -1.7782365360043788, -1.6070305949979444, -1.6503898306385865, -1.4907476045482149]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.1891078308212195, -1.651518918620526, -1.7057248004371603, -1.8411204903217357, -2.0951916765089798, -2.2398819508438264, -1.9581160435460465, -1.848073491587042, -2.1669561397986854, -2.3067268118375477, -1.9987040724531073, -2.0887248569170054, -1.4907476045482149]}}