{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:27:34.225669", "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-Oct-12_to_2021-Oct-14_125.0_-26.0"}, "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": 2021100000386}, "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": "October 12 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 14 2021"}, "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": 57597.89366594487}, "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"]}, "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": -26.0}, "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": 125.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "125.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 124.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 128.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -28.75}, "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": {"2021-10-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.47, -25.47], [125.0, -25.25], [125.25, -25.35], [125.5, -25.25], [126.03, -25.47], [126.18, -25.82], [126.53, -25.97], [126.68, -26.32], [127.03, -26.47], [127.18, -26.82], [127.25, -26.85], [127.5, -26.75], [127.75, -26.85], [128.0, -26.75], [128.53, -26.97], [128.68, -27.32], [129.03, -27.47], [129.25, -28.0], [129.15, -28.25], [129.25, -28.5], [129.03, -29.03], [128.5, -29.25], [128.25, -29.15], [128.0, -29.25], [127.75, -29.15], [127.5, -29.25], [126.97, -29.03], [126.82, -28.68], [126.75, -28.65], [126.5, -28.75], [126.25, -28.65], [126.0, -28.75], [125.47, -28.53], [125.25, -28.0], [125.35, -27.75], [125.25, -27.5], [125.35, -27.25], [125.32, -27.18], [125.25, -27.15], [125.0, -27.25], [124.47, -27.03], [124.25, -26.5], [124.35, -26.25], [124.25, -26.0], [124.47, -25.47]]]]}, "2021-10-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.47, -25.47], [125.0, -25.25], [125.25, -25.35], [125.5, -25.25], [126.03, -25.47], [126.18, -25.82], [126.53, -25.97], [126.68, -26.32], [127.03, -26.47], [127.18, -26.82], [127.25, -26.85], [127.5, -26.75], [127.75, -26.85], [128.0, -26.75], [128.53, -26.97], [128.68, -27.32], [129.03, -27.47], [129.25, -28.0], [129.15, -28.25], [129.25, -28.5], [129.03, -29.03], [128.5, -29.25], [128.25, -29.15], [128.0, -29.25], [127.75, -29.15], [127.5, -29.25], [126.97, -29.03], [126.82, -28.68], [126.75, -28.65], [126.5, -28.75], [126.25, -28.65], [126.0, -28.75], [125.47, -28.53], [125.25, -28.0], [125.35, -27.75], [125.25, -27.5], [125.35, -27.25], [125.32, -27.18], [125.25, -27.15], [125.0, -27.25], [124.47, -27.03], [124.25, -26.5], [124.35, -26.25], [124.25, -26.0], [124.47, -25.47]]]]}, "2021-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.47, -25.47], [125.0, -25.25], [125.25, -25.35], [125.5, -25.25], [126.03, -25.47], [126.18, -25.82], [126.53, -25.97], [126.68, -26.32], [127.03, -26.47], [127.18, -26.82], [127.25, -26.85], [127.5, -26.75], [127.75, -26.85], [128.0, -26.75], [128.53, -26.97], [128.68, -27.32], [129.03, -27.47], [129.25, -28.0], [129.15, -28.25], [129.25, -28.5], [129.03, -29.03], [128.5, -29.25], [128.25, -29.15], [128.0, -29.25], [127.75, -29.15], [127.5, -29.25], [126.97, -29.03], [126.82, -28.68], [126.75, -28.65], [126.5, -28.75], [126.25, -28.65], [126.0, -28.75], [125.47, -28.53], [125.25, -28.0], [125.35, -27.75], [125.25, -27.5], [125.35, -27.25], [125.32, -27.18], [125.25, -27.15], [125.0, -27.25], [124.47, -27.03], [124.25, -26.5], [124.35, -26.25], [124.25, -26.0], [124.47, -25.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.380665736598701}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.499171706184194}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.981760101487964, 16.220277204779563, 16.704633785621184]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.863936450912718, 15.102533456769947, 15.06742480684727]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.7040418985867, -6.5165064550822, -6.276966764883682]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.380665736598701, -6.851527769244342, -6.574554353695817]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4566824781030558, -1.4286526471446992, -1.3914029954884533]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5552581140201767, -1.628145277253774, -1.442950969384045]}}