{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:36:38.841407", "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": "2023-Oct-07_to_2023-Oct-09_127.5_-19.0"}, "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": 2023100000176}, "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 07 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 09 2023"}, "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": 61502.36982537193}, "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": ["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": -19.0}, "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": 127.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "127.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 126.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 129.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -19.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -17.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.97, -17.97], [126.32, -17.82], [126.47, -17.47], [126.82, -17.32], [126.97, -16.97], [127.5, -16.75], [127.75, -16.85], [128.0, -16.75], [128.25, -16.85], [128.5, -16.75], [129.03, -16.97], [129.25, -17.5], [129.04, -18.0], [129.25, -18.5], [129.15, -18.75], [129.18, -18.82], [129.53, -18.97], [129.75, -19.5], [129.53, -20.03], [129.0, -20.25], [128.75, -20.15], [128.5, -20.25], [128.25, -20.15], [128.0, -20.25], [127.75, -20.15], [127.5, -20.25], [127.25, -20.15], [127.0, -20.25], [126.47, -20.03], [126.32, -19.68], [125.97, -19.53], [125.75, -19.0], [125.85, -18.75], [125.75, -18.5], [125.97, -17.97]]]]}, "2023-10-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.97, -17.97], [126.32, -17.82], [126.47, -17.47], [126.82, -17.32], [126.97, -16.97], [127.5, -16.75], [127.75, -16.85], [128.0, -16.75], [128.25, -16.85], [128.5, -16.75], [129.03, -16.97], [129.25, -17.5], [129.04, -18.0], [129.25, -18.5], [129.15, -18.75], [129.18, -18.82], [129.53, -18.97], [129.75, -19.5], [129.53, -20.03], [129.0, -20.25], [128.75, -20.15], [128.5, -20.25], [128.25, -20.15], [128.0, -20.25], [127.75, -20.15], [127.5, -20.25], [127.25, -20.15], [127.0, -20.25], [126.47, -20.03], [126.32, -19.68], [125.97, -19.53], [125.75, -19.0], [125.85, -18.75], [125.75, -18.5], [125.97, -17.97]]]]}, "2023-10-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.97, -17.97], [126.32, -17.82], [126.47, -17.47], [126.82, -17.32], [126.97, -16.97], [127.5, -16.75], [127.75, -16.85], [128.0, -16.75], [128.25, -16.85], [128.5, -16.75], [129.03, -16.97], [129.25, -17.5], [129.04, -18.0], [129.25, -18.5], [129.15, -18.75], [129.18, -18.82], [129.53, -18.97], [129.75, -19.5], [129.53, -20.03], [129.0, -20.25], [128.75, -20.15], [128.5, -20.25], [128.25, -20.15], [128.0, -20.25], [127.75, -20.15], [127.5, -20.25], [127.25, -20.15], [127.0, -20.25], [126.47, -20.03], [126.32, -19.68], [125.97, -19.53], [125.75, -19.0], [125.85, -18.75], [125.75, -18.5], [125.97, -17.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.857095288141693}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.788792040779786}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.051076457455736, 25.908917780719662, 26.514687979327505]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.18989671079231, 24.60675948448528, 25.124868024688396]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.829992763168989, -4.031625615914162, -3.5047577432562074]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.857095288141693, -4.421979327299198, -3.966349226037039]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6982550495862139, -1.795151036882518, -1.5607956716591245]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.949668639099721, -1.9252284018111898, -1.79991039370943]}}