{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:39.544295", "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": "2010-May-12_to_2010-May-14_152.0_-31.0"}, "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": 2010050000383}, "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": "May 12 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 14 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 111191.81058838242}, "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": ["Australia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Australia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Australia"]}, "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": []}, "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": -31.0}, "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": 152.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "152.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 147.75}, "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": -31.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-05-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.75, -27.5], [147.85, -27.25], [147.75, -27.0], [147.96, -26.5], [147.75, -26.0], [147.97, -25.47], [148.5, -25.25], [149.03, -25.47], [149.18, -25.82], [149.25, -25.85], [149.5, -25.75], [149.75, -25.85], [150.0, -25.75], [150.53, -25.97], [150.75, -26.5], [150.65, -26.75], [150.68, -26.82], [150.75, -26.85], [151.0, -26.75], [151.25, -26.85], [151.5, -26.75], [152.03, -26.97], [152.25, -27.5], [152.15, -27.75], [152.18, -27.82], [152.53, -27.97], [152.75, -28.5], [152.65, -28.75], [152.75, -29.0], [152.65, -29.25], [152.68, -29.32], [152.75, -29.35], [153.0, -29.25], [153.53, -29.47], [153.75, -30.0], [153.65, -30.25], [153.75, -30.5], [153.53, -31.03], [153.18, -31.18], [153.03, -31.53], [152.68, -31.68], [152.53, -32.03], [152.0, -32.25], [151.75, -32.15], [151.5, -32.25], [151.25, -32.15], [151.0, -32.25], [150.47, -32.03], [150.25, -31.5], [150.35, -31.25], [150.25, -31.0], [150.46, -30.5], [150.25, -30.0], [150.47, -29.47], [151.0, -29.25], [151.25, -29.35], [151.32, -29.32], [151.35, -29.25], [151.25, -29.0], [151.35, -28.75], [151.32, -28.68], [151.25, -28.65], [151.0, -28.75], [150.75, -28.65], [150.68, -28.68], [150.53, -29.03], [150.0, -29.25], [149.75, -29.15], [149.5, -29.25], [149.25, -29.15], [149.0, -29.25], [148.5, -29.04], [148.0, -29.25], [147.47, -29.03], [147.25, -28.5], [147.47, -27.97], [147.82, -27.82], [147.85, -27.75], [147.75, -27.5]]]]}, "2010-05-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.75, -27.5], [147.85, -27.25], [147.75, -27.0], [147.96, -26.5], [147.75, -26.0], [147.97, -25.47], [148.5, -25.25], [149.03, -25.47], [149.18, -25.82], [149.25, -25.85], [149.5, -25.75], [149.75, -25.85], [150.0, -25.75], [150.53, -25.97], [150.75, -26.5], [150.65, -26.75], [150.68, -26.82], [150.75, -26.85], [151.0, -26.75], [151.25, -26.85], [151.5, -26.75], [152.03, -26.97], [152.25, -27.5], [152.15, -27.75], [152.18, -27.82], [152.53, -27.97], [152.75, -28.5], [152.65, -28.75], [152.75, -29.0], [152.65, -29.25], [152.68, -29.32], [152.75, -29.35], [153.0, -29.25], [153.53, -29.47], [153.75, -30.0], [153.65, -30.25], [153.75, -30.5], [153.53, -31.03], [153.18, -31.18], [153.03, -31.53], [152.68, -31.68], [152.53, -32.03], [152.0, -32.25], [151.75, -32.15], [151.5, -32.25], [151.25, -32.15], [151.0, -32.25], [150.47, -32.03], [150.25, -31.5], [150.35, -31.25], [150.25, -31.0], [150.46, -30.5], [150.25, -30.0], [150.47, -29.47], [151.0, -29.25], [151.25, -29.35], [151.32, -29.32], [151.35, -29.25], [151.25, -29.0], [151.35, -28.75], [151.32, -28.68], [151.25, -28.65], [151.0, -28.75], [150.75, -28.65], [150.68, -28.68], [150.53, -29.03], [150.0, -29.25], [149.75, -29.15], [149.5, -29.25], [149.25, -29.15], [149.0, -29.25], [148.5, -29.04], [148.0, -29.25], [147.47, -29.03], [147.25, -28.5], [147.47, -27.97], [147.82, -27.82], [147.85, -27.75], [147.75, -27.5]]]]}, "2010-05-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.75, -27.5], [147.85, -27.25], [147.75, -27.0], [147.96, -26.5], [147.75, -26.0], [147.97, -25.47], [148.5, -25.25], [149.03, -25.47], [149.18, -25.82], [149.25, -25.85], [149.5, -25.75], [149.75, -25.85], [150.0, -25.75], [150.53, -25.97], [150.75, -26.5], [150.65, -26.75], [150.68, -26.82], [150.75, -26.85], [151.0, -26.75], [151.25, -26.85], [151.5, -26.75], [152.03, -26.97], [152.25, -27.5], [152.15, -27.75], [152.18, -27.82], [152.53, -27.97], [152.75, -28.5], [152.65, -28.75], [152.75, -29.0], [152.65, -29.25], [152.68, -29.32], [152.75, -29.35], [153.0, -29.25], [153.53, -29.47], [153.75, -30.0], [153.65, -30.25], [153.75, -30.5], [153.53, -31.03], [153.18, -31.18], [153.03, -31.53], [152.68, -31.68], [152.53, -32.03], [152.0, -32.25], [151.75, -32.15], [151.5, -32.25], [151.25, -32.15], [151.0, -32.25], [150.47, -32.03], [150.25, -31.5], [150.35, -31.25], [150.25, -31.0], [150.46, -30.5], [150.25, -30.0], [150.47, -29.47], [151.0, -29.25], [151.25, -29.35], [151.32, -29.32], [151.35, -29.25], [151.25, -29.0], [151.35, -28.75], [151.32, -28.68], [151.25, -28.65], [151.0, -28.75], [150.75, -28.65], [150.68, -28.68], [150.53, -29.03], [150.0, -29.25], [149.75, -29.15], [149.5, -29.25], [149.25, -29.15], [149.0, -29.25], [148.5, -29.04], [148.0, -29.25], [147.47, -29.03], [147.25, -28.5], [147.47, -27.97], [147.82, -27.82], [147.85, -27.75], [147.75, -27.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.14202800952512}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.377562719552099}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.85076514199892, 9.114991161756166, 10.385103009244744]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [4.109109553223902, 4.918430590792866, 5.5007891427652]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.4346344225983785, -5.023261715184896, -3.6747920208730296]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.478225565520631, -6.14202800952512, -4.434308990908505]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7454869413662868, -2.0034585078698046, -1.4975575116458504]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2672798938871876, -2.300697671783597, -1.7852637394501372]}}