{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:42.688000", "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-20_to_2011-Jun-24_150.0_-2.5"}, "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": 2011060001020}, "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 20 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 24 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": 111221.6098021036}, "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"]}, "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", "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": -2.5}, "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": 150.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "150.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 146.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 153.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -3.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -0.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[149.5, -0.25], [150.03, -0.47], [150.25, -1.0], [150.03, -1.53], [149.5, -1.75], [148.97, -1.53], [148.75, -1.0], [148.97, -0.47], [149.5, -0.25]]]]}, "2011-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.5, -0.75], [147.75, -0.85], [148.0, -0.75], [148.25, -0.85], [148.5, -0.75], [148.75, -0.85], [148.82, -0.82], [148.97, -0.47], [149.5, -0.25], [149.75, -0.35], [149.82, -0.32], [149.97, 0.03], [150.5, 0.25], [150.75, 0.15], [151.0, 0.25], [151.53, 0.03], [151.68, -0.32], [151.75, -0.35], [152.0, -0.25], [152.53, -0.47], [152.75, -1.0], [152.65, -1.25], [152.75, -1.5], [152.53, -2.03], [152.0, -2.25], [151.75, -2.15], [151.68, -2.18], [151.53, -2.53], [151.0, -2.75], [150.75, -2.65], [150.68, -2.68], [150.65, -2.75], [150.75, -3.0], [150.53, -3.53], [150.0, -3.75], [149.75, -3.65], [149.5, -3.75], [149.25, -3.65], [149.0, -3.75], [148.47, -3.53], [148.25, -3.0], [148.46, -2.5], [148.32, -2.18], [148.25, -2.15], [148.0, -2.25], [147.75, -2.15], [147.68, -2.18], [147.53, -2.53], [147.0, -2.75], [146.47, -2.53], [146.25, -2.0], [146.47, -1.47], [146.82, -1.32], [146.97, -0.97], [147.5, -0.75]]]]}, "2011-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.5, -0.75], [147.75, -0.85], [148.0, -0.75], [148.25, -0.85], [148.5, -0.75], [148.75, -0.85], [148.82, -0.82], [148.97, -0.47], [149.5, -0.25], [149.75, -0.35], [149.82, -0.32], [149.97, 0.03], [150.5, 0.25], [150.75, 0.15], [151.0, 0.25], [151.53, 0.03], [151.68, -0.32], [151.75, -0.35], [152.0, -0.25], [152.53, -0.47], [152.68, -0.82], [152.75, -0.85], [153.0, -0.75], [153.53, -0.97], [153.75, -1.5], [153.53, -2.03], [153.18, -2.18], [153.03, -2.53], [152.68, -2.68], [152.53, -3.03], [152.0, -3.25], [151.75, -3.15], [151.5, -3.25], [150.97, -3.03], [150.82, -2.68], [150.75, -2.65], [150.68, -2.68], [150.65, -2.75], [150.75, -3.0], [150.53, -3.53], [150.0, -3.75], [149.75, -3.65], [149.5, -3.75], [149.25, -3.65], [149.0, -3.75], [148.47, -3.53], [148.25, -3.0], [148.46, -2.5], [148.32, -2.18], [148.25, -2.15], [148.0, 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-0.9545167280300281}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.26565533189887, 26.031837511776757, 25.9618972071778, 26.074360632511173, 26.161415810854635]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.26565533189887, 25.2765398943655, 25.28381161380497, 25.452273114152547, 26.088710158871663]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.7601095399387532, -0.9517388949277946, -1.0190253233207518, -0.9116750860152527, -0.8762470691881877]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.7601095399387532, -1.1349376660424468, -1.276153462689365, -1.1331939679364496, -0.9421231502723799]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.1781382496398987, -1.5065550627600606, -1.6372460712261165, -1.4234823228072941, -1.3299308856097924]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.1781382496398987, -1.7414372126011928, -2.0964475453537013, -1.7372423689226826, -1.3996305731851688]}}