{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:26:24.566960", "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": "2021-Jul-03_to_2021-Jul-06_126.0_-16.0"}, "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": 2021070000232}, "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": "July 03 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 06 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 240916.72091913404}, "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": ["C.Australia", "N.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": -16.0}, "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": 126.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "126.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 123.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 131.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -20.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -15.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.25, -15.5], [125.47, -14.97], [126.0, -14.75], [126.53, -14.97], [126.75, -15.5], [126.65, -15.75], [126.75, -16.0], [126.53, -16.53], [126.18, -16.68], [126.03, -17.03], [125.5, -17.25], [124.97, -17.03], [124.75, -16.5], [124.97, -15.97], [125.32, -15.82], [125.35, -15.75], [125.25, -15.5]]]]}, "2021-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.47, -16.47], [124.0, -16.25], [124.3, -16.37], [124.35, -16.25], [124.25, -16.0], [124.47, -15.47], [124.82, -15.32], [124.97, -14.97], [125.5, -14.75], [125.75, -14.85], [126.0, -14.75], [126.25, -14.85], [126.5, -14.75], [127.03, -14.97], [127.18, -15.32], [127.25, -15.35], [127.5, -15.25], [127.75, -15.35], [128.0, -15.25], [128.53, -15.47], [128.75, -16.0], [128.65, -16.25], [128.68, -16.32], [129.03, -16.47], [129.25, -17.0], [129.15, -17.25], [129.18, -17.32], [129.53, -17.47], [129.68, -17.82], [129.75, -17.85], [130.0, -17.75], [130.25, -17.85], [130.5, -17.75], [130.75, -17.85], [131.0, -17.75], [131.53, -17.97], [131.75, -18.5], [131.65, -18.75], [131.75, -19.0], [131.53, -19.53], [131.18, -19.68], [131.03, -20.03], [130.68, -20.18], [130.65, -20.25], [130.75, -20.5], [130.53, -21.03], [130.0, -21.25], [129.75, -21.15], [129.5, -21.25], [129.25, -21.15], [129.0, -21.25], [128.47, -21.03], [128.32, -20.68], [128.25, -20.65], [128.0, -20.75], [127.5, -20.54], [127.0, -20.75], [126.75, -20.65], [126.5, -20.75], [125.97, -20.53], [125.75, -20.0], [125.85, -19.75], [125.82, -19.68], [125.75, -19.65], [125.5, -19.75], [125.25, -19.65], [125.0, -19.75], [124.47, -19.53], [124.32, -19.18], [123.97, -19.03], [123.82, -18.68], [123.47, -18.53], [123.25, -18.0], [123.46, -17.5], [123.25, -17.0], [123.47, -16.47]]]]}, "2021-07-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.47, -16.47], [124.0, -16.25], [124.3, -16.37], [124.35, -16.25], [124.25, -16.0], [124.47, -15.47], [124.82, -15.32], [124.97, -14.97], [125.5, -14.75], [125.75, -14.85], [126.0, -14.75], [126.25, -14.85], [126.5, -14.75], [127.03, -14.97], [127.18, 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"evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.546170938905732, 11.895276772818931, 11.304124627410204, 13.247605209696417]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.0466964900076428, -4.537539340395253, -4.974631843802022, -3.929090968423393]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.2251347656035136, -5.5960851031363745, -6.213849694586543, -5.151132797238915]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.323727764497692, -1.7179840060638485, -1.90805676311102, -1.5249318574440842]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3448292833137117, -1.967888317585064, -2.2411898193174804, -2.0321233288718785]}}