{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:39.115066", "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": "2012-Jun-11_to_2012-Jun-17_147.5_-5.5"}, "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": 2012060000544}, "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": "June 11 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 17 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 583600.4359520057}, "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": ["Papua New Guinea"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Equatorial.Pacific-Ocean", "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": ["Bismarck Sea", "North Pacific Ocean", "Solomon Sea", "South Pacific 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": -5.5}, "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": 147.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "147.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 146.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 159.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -6.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 3.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-06-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.5, -4.75], [148.03, -4.97], [148.25, -5.5], [148.03, -6.03], [147.5, -6.25], [146.97, -6.03], [146.75, -5.5], [146.97, -4.97], [147.5, -4.75]]]]}, "2012-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.97, -6.03], [146.75, -5.5], [146.97, -4.97], [147.5, -4.75], [148.03, -4.97], [148.25, -5.5], [148.03, -6.03], [147.5, -6.25], [146.97, -6.03]]], [[[151.5, -2.25], [152.03, -2.47], [152.25, -3.0], [152.15, -3.25], [152.25, -3.5], [152.03, -4.03], [151.5, -4.25], [150.97, -4.03], [150.75, -3.5], [150.85, -3.25], [150.75, -3.0], [150.97, -2.47], [151.5, -2.25]]]]}, "2012-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.75, -4.0], [145.85, -3.75], [145.75, -3.5], [145.97, -2.97], [146.5, -2.75], [146.75, -2.85], [147.0, -2.75], [147.25, -2.85], [147.5, -2.75], [147.75, -2.85], [148.0, -2.75], [148.25, -2.85], [148.5, -2.75], [149.03, -2.97], [149.25, -3.5], [149.13, -3.8], [149.25, -3.85], [149.32, -3.82], [149.47, -3.47], [149.82, -3.32], [149.97, -2.97], [150.32, -2.82], [150.47, -2.47], [151.0, -2.25], [151.25, -2.35], [151.32, -2.32], [151.47, -1.97], [152.0, -1.75], [152.25, -1.85], [152.5, -1.75], [153.03, -1.97], [153.18, -2.32], [153.25, -2.35], [153.5, -2.25], [153.75, -2.35], [153.88, -2.3], [153.82, -2.18], [153.47, -2.03], [153.25, -1.5], [153.47, -0.97], [153.82, -0.82], [153.97, -0.47], [154.5, -0.25], [155.03, -0.47], [155.18, -0.82], [155.25, -0.85], [155.5, -0.75], [155.75, -0.85], [156.0, -0.75], [156.53, -0.97], [156.68, -1.32], [157.03, -1.47], [157.25, -2.0], [157.15, -2.25], [157.25, -2.5], [157.03, -3.03], [156.5, -3.25], [156.25, -3.15], [156.0, -3.25], [155.75, -3.15], [155.5, -3.25], [155.07, -3.07], [155.25, -3.5], [155.03, -4.03], [154.5, -4.25], [154.25, -4.15], [154.0, -4.25], [153.75, -4.15], [153.5, -4.25], [152.97, -4.03], [152.82, -3.68], [152.75, -3.65], [152.5, -3.75], [152.25, -3.65], [152.18, -3.68], [152.03, -4.03], [151.68, -4.18], [151.54, -4.5], [151.75, -5.0], [151.53, -5.53], [151.0, -5.75], [150.75, -5.65], [150.5, -5.75], [150.0, -5.54], [149.5, -5.75], [149.25, -5.65], [149.18, -5.68], [149.03, -6.03], [148.68, -6.18], [148.65, -6.25], [148.75, -6.5], [148.53, -7.03], [148.0, -7.25], [147.47, -7.03], [147.32, -6.68], [146.97, -6.53], [146.82, -6.18], [146.47, -6.03], [146.32, -5.68], [145.97, -5.53], [145.75, -5.0], [145.85, -4.75], [145.75, -4.5], [145.85, -4.25], [145.75, -4.0]], [[154.68, -2.82], [154.93, -2.93], [154.82, -2.68], [154.75, -2.65], [154.63, -2.7], [154.68, -2.82]]], [[[148.82, 0.68], [148.97, 1.03], [149.5, 1.25], [149.75, 1.15], [150.0, 1.25], [150.53, 1.03], [150.75, 0.5], [150.65, 0.25], [150.75, 0.0], [150.53, -0.53], [150.18, -0.68], [150.03, -1.03], [149.5, -1.25], [148.97, -1.03], [148.82, -0.68], [148.47, -0.53], [148.25, 0.0], [148.47, 0.53], [148.82, 0.68]]], [[[157.97, 1.53], [158.5, 1.75], [158.75, 1.65], [159.0, 1.75], [159.53, 1.53], [159.75, 1.0], [159.65, 0.75], [159.75, 0.5], [159.53, -0.03], [159.0, -0.25], [158.75, -0.15], [158.68, -0.18], [158.53, -0.53], [158.0, -0.75], [157.47, -0.53], [157.25, 0.0], [157.35, 0.25], [157.25, 0.5], [157.47, 1.03], [157.82, 1.18], [157.97, 1.53]]]]}, "2012-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.85, -4.25], [145.75, -4.0], [145.85, -3.75], [145.75, -3.5], [145.97, -2.97], [146.5, -2.75], [146.75, -2.85], [147.0, -2.75], [147.25, -2.85], [147.5, -2.75], [147.75, -2.85], [148.0, -2.75], [148.25, -2.85], [148.5, -2.75], [149.03, -2.97], [149.25, -3.5], [149.13, -3.8], [149.25, -3.85], [149.32, -3.82], [149.47, -3.47], [149.82, -3.32], [149.97, -2.97], [150.32, -2.82], [150.47, -2.47], [151.0, -2.25], [151.25, -2.35], [151.32, -2.32], [151.47, -1.97], [152.0, -1.75], [152.25, -1.85], [152.5, -1.75], [153.03, -1.97], [153.18, -2.32], [153.25, -2.35], [153.38, -2.3], [153.25, -2.0], [153.35, -1.75], [153.25, -1.5], [153.35, -1.25], [153.32, -1.18], [152.97, -1.03], [152.8, -0.63], [152.5, -0.75], [152.25, -0.65], [152.0, -0.75], [151.75, -0.65], [151.68, -0.68], [151.65, -0.75], [151.75, -1.0], [151.53, -1.53], [151.0, -1.75], [150.75, -1.65], [150.5, -1.75], [149.97, -1.53], [149.82, -1.18], [149.75, -1.15], [149.5, -1.25], [148.97, -1.03], [148.82, -0.68], [148.47, -0.53], [148.25, 0.0], [148.35, 0.25], [148.25, 0.5], [148.47, 1.03], [148.82, 1.18], [148.97, 1.53], [149.5, 1.75], [149.75, 1.65], [150.0, 1.75], [150.3, 1.63], [150.47, 2.03], [151.0, 2.25], [151.25, 2.15], [151.32, 2.18], [151.47, 2.53], [152.0, 2.75], [152.25, 2.65], [152.5, 2.75], [152.75, 2.65], [152.82, 2.68], [152.97, 3.03], [153.5, 3.25], [153.75, 3.15], [154.0, 3.25], [154.25, 3.15], [154.5, 3.25], [154.75, 3.15], [154.82, 3.18], [154.97, 3.53], [155.5, 3.75], [156.03, 3.53], [156.18, 3.18], [156.25, 3.15], [156.5, 3.25], [156.75, 3.15], [157.0, 3.25], [157.25, 3.15], [157.5, 3.25], [157.75, 3.15], [158.0, 3.25], [158.53, 3.03], [158.68, 2.68], [159.03, 2.53], [159.25, 2.0], [159.15, 1.75], [159.18, 1.68], [159.53, 1.53], [159.75, 1.0], [159.65, 0.75], [159.75, 0.5], [159.53, -0.03], [159.0, -0.25], [158.75, -0.15], [158.68, -0.18], [158.65, -0.25], [158.75, -0.5], [158.53, -1.03], [158.0, -1.25], [157.75, -1.15], [157.68, -1.18], [157.54, -1.5], [157.68, -1.82], [158.03, -1.97], [158.18, -2.32], [158.53, -2.47], [158.75, -3.0], [158.53, -3.53], [158.18, -3.68], [158.03, -4.03], [157.5, -4.25], [156.97, -4.03], [156.82, -3.68], [156.47, -3.53], [156.32, -3.18], [156.25, -3.15], [156.0, -3.25], [155.75, -3.15], [155.5, -3.25], [155.25, -3.15], [155.18, -3.18], [155.15, -3.25], [155.25, -3.5], [155.03, -4.03], [154.5, -4.25], [154.25, -4.15], [154.0, -4.25], [153.75, -4.15], [153.5, -4.25], [152.97, -4.03], [152.82, -3.68], [152.75, -3.65], [152.5, -3.75], [152.25, -3.65], [152.18, -3.68], [152.03, -4.03], [151.68, -4.18], [151.54, -4.5], [151.68, -4.82], [152.03, -4.97], [152.25, -5.5], [152.03, -6.03], [151.5, -6.25], [150.97, -6.03], [150.82, -5.68], [150.75, -5.65], [150.5, -5.75], [150.0, -5.54], [149.5, -5.75], [149.25, -5.65], [149.18, -5.68], [149.03, -6.03], [148.68, -6.18], [148.65, -6.25], [148.75, -6.5], [148.53, -7.03], [148.0, -7.25], [147.47, -7.03], [147.32, -6.68], [146.97, -6.53], [146.82, -6.18], [146.47, -6.03], [146.32, -5.68], [145.97, -5.53], [145.75, -5.0], [145.85, -4.75], [145.75, -4.5], [145.85, -4.25]], [[155.5, -0.75], [155.25, -0.65], [155.18, -0.68], [155.15, -0.75], [155.18, -0.82], [155.25, -0.85], [155.5, -0.75]], [[155.75, -0.85], [155.82, -0.82], [155.85, -0.75], [155.8, -0.63], [155.5, -0.75], [155.75, -0.85]]]]}, "2012-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.85, -4.25], [145.75, -4.0], [145.85, -3.75], [145.75, -3.5], [145.97, -2.97], [146.5, -2.75], [146.75, -2.85], [147.0, -2.75], [147.25, -2.85], [147.5, -2.75], [147.75, -2.85], [148.0, -2.75], [148.25, -2.85], [148.5, -2.75], [149.03, -2.97], [149.25, -3.5], [149.13, -3.8], [149.25, -3.85], [149.32, -3.82], [149.47, -3.47], [149.82, -3.32], [149.97, -2.97], [150.32, -2.82], [150.47, -2.47], [151.0, -2.25], [151.25, -2.35], [151.32, -2.32], [151.47, -1.97], [152.0, -1.75], [152.25, -1.85], [152.5, -1.75], [153.03, -1.97], [153.18, -2.32], [153.25, -2.35], [153.38, -2.3], [153.25, -2.0], [153.35, -1.75], [153.25, -1.5], [153.35, -1.25], [153.32, -1.18], [152.97, -1.03], [152.8, -0.63], [152.5, -0.75], [152.25, -0.65], [152.0, -0.75], [151.75, -0.65], [151.68, -0.68], [151.65, -0.75], [151.75, -1.0], [151.53, -1.53], [151.0, -1.75], [150.75, -1.65], [150.5, -1.75], [149.97, -1.53], [149.82, -1.18], [149.75, -1.15], [149.5, -1.25], [148.97, -1.03], [148.82, -0.68], [148.47, -0.53], [148.25, 0.0], [148.35, 0.25], [148.25, 0.5], [148.47, 1.03], [148.82, 1.18], [148.97, 1.53], [149.5, 1.75], [149.75, 1.65], [150.0, 1.75], [150.3, 1.63], [150.47, 2.03], [151.0, 2.25], [151.25, 2.15], [151.32, 2.18], [151.47, 2.53], [152.0, 2.75], [152.25, 2.65], [152.5, 2.75], [152.75, 2.65], [152.82, 2.68], [152.97, 3.03], [153.5, 3.25], [153.75, 3.15], [154.0, 3.25], [154.25, 3.15], [154.5, 3.25], [154.75, 3.15], [154.82, 3.18], [154.97, 3.53], [155.5, 3.75], [156.03, 3.53], [156.18, 3.18], [156.25, 3.15], [156.5, 3.25], [156.75, 3.15], [157.0, 3.25], [157.25, 3.15], [157.5, 3.25], [157.75, 3.15], [158.0, 3.25], [158.53, 3.03], [158.68, 2.68], [159.03, 2.53], [159.25, 2.0], [159.15, 1.75], [159.18, 1.68], [159.53, 1.53], [159.75, 1.0], [159.65, 0.75], [159.75, 0.5], [159.53, -0.03], [159.0, -0.25], [158.75, -0.15], [158.68, -0.18], [158.65, -0.25], [158.75, -0.5], [158.53, -1.03], [158.0, -1.25], [157.75, -1.15], [157.68, -1.18], [157.54, -1.5], [157.68, -1.82], [158.03, -1.97], [158.18, -2.32], [158.53, -2.47], [158.75, -3.0], [158.53, -3.53], [158.18, -3.68], [158.03, -4.03], [157.5, -4.25], [156.97, -4.03], [156.82, -3.68], [156.47, -3.53], [156.32, -3.18], [156.25, -3.15], [156.0, -3.25], [155.75, -3.15], [155.5, -3.25], [155.25, -3.15], [155.18, -3.18], [155.15, -3.25], [155.25, -3.5], [155.03, -4.03], [154.5, -4.25], [154.25, -4.15], [154.0, -4.25], [153.75, -4.15], [153.5, -4.25], [152.97, -4.03], [152.82, -3.68], [152.75, -3.65], [152.5, -3.75], [152.25, -3.65], [152.18, -3.68], [152.03, -4.03], [151.68, -4.18], [151.54, -4.5], [151.68, -4.82], [152.03, -4.97], [152.25, -5.5], [152.03, -6.03], [151.5, -6.25], [150.97, -6.03], [150.82, -5.68], [150.75, -5.65], [150.5, -5.75], [150.0, -5.54], [149.5, -5.75], [149.25, -5.65], [149.18, -5.68], [149.03, -6.03], [148.68, -6.18], [148.65, -6.25], [148.75, -6.5], [148.53, -7.03], [148.0, -7.25], [147.47, -7.03], [147.32, -6.68], [146.97, -6.53], [146.82, -6.18], [146.47, -6.03], [146.32, -5.68], [145.97, -5.53], [145.75, -5.0], [145.85, -4.75], [145.75, -4.5], [145.85, -4.25]], [[155.5, -0.75], [155.25, -0.65], [155.18, -0.68], [155.15, -0.75], [155.18, -0.82], [155.25, -0.85], [155.5, -0.75]], [[155.75, -0.85], [155.82, -0.82], [155.85, -0.75], [155.8, -0.63], [155.5, -0.75], [155.75, -0.85]]]]}, "2012-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.97, -6.03], [150.75, -5.5], [150.97, -4.97], [151.5, -4.75], [152.03, -4.97], [152.25, -5.5], [152.03, -6.03], [151.5, -6.25], [150.97, -6.03]]], [[[148.82, 1.18], [148.97, 1.53], [149.5, 1.75], [149.75, 1.65], [150.0, 1.75], [150.3, 1.63], [150.47, 2.03], [151.0, 2.25], [151.25, 2.15], [151.32, 2.18], [151.47, 2.53], [152.0, 2.75], [152.25, 2.65], [152.5, 2.75], [152.75, 2.65], [152.82, 2.68], [152.97, 3.03], [153.5, 3.25], [153.75, 3.15], [154.0, 3.25], [154.25, 3.15], [154.5, 3.25], [154.75, 3.15], [154.82, 3.18], [154.97, 3.53], [155.5, 3.75], [156.03, 3.53], [156.18, 3.18], [156.25, 3.15], [156.5, 3.25], [156.75, 3.15], [157.0, 3.25], [157.25, 3.15], [157.5, 3.25], [157.75, 3.15], [158.0, 3.25], [158.53, 3.03], [158.68, 2.68], [159.03, 2.53], [159.25, 2.0], [159.15, 1.75], [159.18, 1.68], [159.53, 1.53], [159.75, 1.0], [159.65, 0.75], [159.75, 0.5], [159.53, -0.03], [159.0, -0.25], [158.75, -0.15], [158.68, -0.18], [158.65, -0.25], [158.75, -0.5], [158.53, -1.03], [158.0, -1.25], [157.75, -1.15], [157.68, -1.18], [157.54, -1.5], [157.68, -1.82], [158.03, -1.97], [158.18, -2.32], [158.53, -2.47], [158.75, -3.0], [158.53, -3.53], [158.18, -3.68], [158.03, -4.03], [157.5, -4.25], [156.97, -4.03], [156.82, -3.68], [156.47, -3.53], [156.32, -3.18], [156.25, -3.15], [156.0, -3.25], [155.5, -3.04], [155.18, -3.18], [155.03, -3.53], [154.5, -3.75], [153.97, -3.53], [153.75, -3.0], [153.85, -2.75], [153.82, -2.68], [153.47, -2.53], [153.25, -2.0], [153.35, -1.75], [153.25, -1.5], [153.35, -1.25], [153.32, -1.18], [152.97, -1.03], [152.8, -0.63], [152.5, -0.75], [152.25, -0.65], [152.0, -0.75], [151.75, -0.65], [151.68, -0.68], [151.65, -0.75], [151.75, -1.0], [151.53, -1.53], [151.0, -1.75], [150.75, -1.65], [150.5, -1.75], [149.97, -1.53], [149.82, -1.18], [149.75, -1.15], [149.5, -1.25], [148.97, -1.03], [148.82, -0.68], [148.47, -0.53], [148.25, 0.0], [148.35, 0.25], [148.25, 0.5], [148.47, 1.03], [148.82, 1.18]], [[155.8, -0.63], [155.5, -0.75], [155.75, -0.85], [155.82, -0.82], [155.85, -0.75], [155.8, -0.63]], [[155.25, -0.65], [155.18, -0.68], [155.15, -0.75], [155.18, -0.82], [155.25, -0.85], [155.5, -0.75], [155.25, -0.65]]]]}, "2012-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[156.97, -2.47], [157.5, -2.25], [158.03, -2.47], [158.25, -3.0], [158.15, -3.25], [158.25, -3.5], [158.03, -4.03], [157.5, -4.25], [156.97, -4.03], [156.75, -3.5], [156.85, -3.25], [156.75, -3.0], [156.97, -2.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.7533088354077222}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.036987309859409}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.340060675999723, 26.314270129078636, 26.218712781751208, 26.004697474547243, 26.025158256219754, 26.135824849353696, 26.33370989218173]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.340060675999723, 26.181332588939938, 23.783392842746537, 20.360029806091575, 20.35604500055871, 20.609080151896706, 26.31839329591469]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.7227381595093902, -0.7959325120474432, -0.8905822944003352, -1.0958885765078066, -1.0784154706087705, -0.9911304427951656, -0.8523516817388668]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.7227381595093902, -0.8443185743701633, -1.2731272101646027, -1.6820143632661484, -1.7533088354077222, -1.376813403883034, -0.8615682636628321]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7013519981563288, -1.5467565317720329, -1.5473025810651297, -1.7606669616346418, -1.704307913651815, -1.5325274724107734, -1.36603138377163]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7013519981563288, -1.6349226141428934, -2.577601040230177, -3.0584365884344074, -3.0059195307695536, -2.1589424889493296, -1.380720525985579]}}