{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:44.437104", "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-Jun-29_to_2011-Jul-03_134.0_8.0"}, "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": 2011060001499}, "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 29 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 03 2011"}, "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": 156339.8043089664}, "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": ["Palau"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Equatorial.Pacific-Ocean", "N.Pacific-Ocean", "S.E.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Oceania"]}, "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": ["North Pacific Ocean", "Philippine 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": 8.0}, "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": 134.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "134.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 130.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 136.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 4.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 9.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.47, 6.53], [131.82, 6.68], [131.97, 7.03], [132.5, 7.25], [133.03, 7.03], [133.18, 6.68], [133.53, 6.53], [133.75, 6.0], [133.65, 5.75], [133.75, 5.5], [133.53, 4.97], [133.0, 4.75], [132.47, 4.97], [132.32, 5.32], [132.25, 5.35], [132.13, 5.3], [132.25, 5.0], [132.03, 4.47], [131.5, 4.25], [130.97, 4.47], [130.75, 5.0], [130.97, 5.53], [131.38, 5.7], [131.25, 6.0], [131.47, 6.53]]]]}, "2011-06-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.32, 6.18], [131.47, 6.53], [131.82, 6.68], [131.97, 7.03], [132.5, 7.25], [133.03, 7.03], [133.18, 6.68], [133.53, 6.53], [133.75, 6.0], [133.65, 5.75], [133.75, 5.5], [133.53, 4.97], [133.0, 4.75], [132.7, 4.87], [132.53, 4.47], [132.0, 4.25], [131.75, 4.35], [131.5, 4.25], [131.25, 4.35], [131.0, 4.25], [130.47, 4.47], [130.25, 5.0], [130.47, 5.53], [130.82, 5.68], [130.97, 6.03], [131.32, 6.18]]]]}, "2011-07-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.35, 5.75], [130.25, 6.0], [130.47, 6.53], [131.0, 6.75], [131.5, 6.54], [131.82, 6.68], [131.85, 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"The daily evolution of mean t2m anomalies.", "value": [-0.8264406796199163, -0.8202744162915363, -0.9035567636103756, -0.8916669789376863, -1.0571856794681864]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.9154069884341425, -0.9360963134354279, -1.1649496505406773, -1.1851018827192092, -1.3693641781763404]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3861029108128893, -1.3144149297706282, -1.6197186408289845, -1.5589952875938513, -1.8996225295990157]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.561074055167279, -1.4264248258841614, -1.9236105041282892, -2.128047177620242, -2.479530289644634]}}