{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:35:31.917305", "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-Jun-12_to_2023-Jun-14_126.0_-27.5"}, "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": 2023060000399}, "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 12 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 14 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": 81809.38955345892}, "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": -27.5}, "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": 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": 122.75}, "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": -29.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -26.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.35, -27.25], [122.25, -27.0], [122.47, -26.47], [123.0, -26.25], [123.53, -26.47], [123.68, -26.82], [123.75, -26.85], [123.82, -26.82], [123.97, -26.47], [124.5, -26.25], [125.03, -26.47], [125.18, -26.82], [125.25, -26.85], [125.5, -26.75], [125.75, -26.85], [126.0, -26.75], [126.25, -26.85], [126.5, -26.75], [127.03, -26.97], [127.18, -27.32], [127.25, -27.35], [127.5, -27.25], [128.03, -27.47], [128.18, -27.82], [128.25, -27.85], [128.5, -27.75], [129.03, -27.97], [129.25, -28.5], [129.15, -28.75], [129.25, -29.0], [129.03, -29.53], [128.68, -29.68], [128.53, -30.03], [128.0, -30.25], [127.75, -30.15], [127.5, -30.25], [126.97, -30.03], [126.75, -29.5], [126.96, -29.0], [126.82, -28.68], [126.75, -28.65], [126.68, -28.68], [126.53, -29.03], [126.0, -29.25], [125.75, -29.15], [125.5, -29.25], [125.25, -29.15], [125.0, -29.25], [124.75, -29.15], [124.5, -29.25], [123.97, -29.03], [123.8, -28.62], [123.5, -28.75], [123.25, -28.65], [123.0, -28.75], [122.47, -28.53], [122.25, -28.0], [122.35, -27.75], [122.25, -27.5], [122.35, -27.25]]]]}, "2023-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.35, -27.25], [122.25, -27.0], [122.47, -26.47], [123.0, -26.25], [123.53, -26.47], [123.68, -26.82], [123.75, -26.85], [123.82, -26.82], [123.97, -26.47], [124.5, -26.25], [125.03, -26.47], [125.18, -26.82], [125.25, -26.85], [125.5, -26.75], [125.75, -26.85], [126.0, -26.75], [126.25, -26.85], [126.5, -26.75], [127.03, -26.97], [127.18, -27.32], [127.25, -27.35], [127.5, -27.25], [128.03, -27.47], [128.18, -27.82], [128.25, -27.85], [128.5, -27.75], [129.03, -27.97], [129.25, -28.5], [129.15, -28.75], [129.25, -29.0], [129.03, -29.53], [128.68, -29.68], [128.53, -30.03], [128.0, -30.25], [127.75, -30.15], [127.5, -30.25], [126.97, -30.03], [126.75, -29.5], [126.96, -29.0], [126.82, -28.68], [126.75, -28.65], [126.68, -28.68], [126.53, -29.03], [126.0, -29.25], [125.75, -29.15], [125.5, -29.25], [125.25, -29.15], [125.0, -29.25], [124.75, -29.15], [124.5, -29.25], [123.97, -29.03], [123.8, -28.62], [123.5, -28.75], [123.25, -28.65], [123.0, -28.75], [122.47, -28.53], [122.25, -28.0], [122.35, -27.75], [122.25, -27.5], [122.35, -27.25]]]]}, "2023-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.35, -27.25], [122.25, -27.0], [122.47, -26.47], [123.0, -26.25], [123.53, -26.47], [123.68, -26.82], [123.75, -26.85], [123.82, -26.82], [123.97, -26.47], [124.5, -26.25], [125.03, -26.47], [125.18, -26.82], [125.25, -26.85], [125.5, -26.75], [125.75, -26.85], [126.0, -26.75], [126.25, -26.85], [126.5, -26.75], [127.03, -26.97], [127.18, -27.32], [127.25, -27.35], [127.5, -27.25], [128.03, -27.47], [128.18, -27.82], [128.25, -27.85], [128.5, -27.75], [129.03, -27.97], [129.25, -28.5], [129.15, -28.75], [129.25, -29.0], [129.03, -29.53], [128.68, -29.68], [128.53, -30.03], [128.0, -30.25], [127.75, -30.15], [127.5, -30.25], [126.97, -30.03], [126.75, -29.5], [126.96, -29.0], [126.82, -28.68], [126.75, -28.65], [126.68, -28.68], [126.53, -29.03], [126.0, -29.25], [125.75, -29.15], [125.5, -29.25], [125.25, -29.15], [125.0, -29.25], [124.75, -29.15], [124.5, -29.25], [123.97, -29.03], [123.8, -28.62], [123.5, -28.75], [123.25, -28.65], [123.0, -28.75], [122.47, -28.53], [122.25, -28.0], [122.35, -27.75], [122.25, -27.5], [122.35, -27.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.196927800826245}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.5917657121180993}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.028458063294636, 8.346896727324179, 8.990850099879196]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [8.286157803339506, 7.317198722677233, 8.470850257547]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.396670052882498, -4.023764877122058, -3.354862206349742]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.821226429318017, -5.196927800826245, -3.9965615518436266]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3397839899935227, -1.586594548000306, -1.3140071515611857]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.513812555317165, -1.9800993597206367, -1.5095192627911087]}}