{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:36:58.764731", "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-Nov-28_to_2023-Dec-02_122.0_-20.0"}, "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": 2023110000608}, "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": "November 28 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 02 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 64160.70347910905}, "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": -20.0}, "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": 122.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "122.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 119.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 124.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -20.25}, "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": {"2023-11-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.0, -19.25], [122.53, -19.47], [122.75, -20.0], [122.53, -20.53], [122.0, -20.75], [121.47, -20.53], [121.25, -20.0], [121.47, -19.47], [122.0, -19.25]]]]}, "2023-11-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.47, -20.53], [119.25, -20.0], [119.47, -19.47], [120.0, -19.25], [120.25, -19.35], [120.5, -19.25], [120.75, -19.35], [120.82, -19.32], [120.97, -18.97], [121.32, -18.82], [121.35, -18.75], [121.25, -18.5], [121.47, -17.97], [121.82, -17.82], [121.85, -17.75], [121.75, -17.5], [121.97, -16.97], [122.5, -16.75], [123.03, -16.97], [123.25, -17.5], [123.15, -17.75], [123.18, -17.82], [123.53, -17.97], [123.75, -18.5], [123.65, -18.75], [123.68, -18.82], [124.03, -18.97], [124.18, -19.32], [124.53, -19.47], [124.75, -20.0], [124.53, -20.53], [124.0, -20.75], [123.75, -20.65], [123.5, -20.75], [123.25, -20.65], [123.0, -20.75], [122.75, -20.65], [122.5, -20.75], [122.25, -20.65], [122.0, -20.75], [121.75, -20.65], [121.5, -20.75], [121.25, -20.65], [121.0, -20.75], [120.75, -20.65], [120.5, -20.75], [120.25, -20.65], [120.0, -20.75], [119.47, -20.53]]]]}, "2023-11-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.47, -20.53], [119.25, -20.0], [119.47, -19.47], [120.0, -19.25], [120.25, -19.35], [120.5, -19.25], [120.75, -19.35], [120.82, -19.32], [120.97, -18.97], [121.32, -18.82], [121.35, -18.75], [121.25, -18.5], [121.47, -17.97], [121.82, -17.82], [121.85, -17.75], [121.75, -17.5], [121.97, -16.97], [122.5, -16.75], [123.03, -16.97], [123.25, -17.5], [123.15, -17.75], [123.18, -17.82], [123.53, -17.97], [123.75, -18.5], [123.65, -18.75], [123.68, -18.82], [124.03, -18.97], [124.18, -19.32], [124.53, -19.47], [124.75, -20.0], [124.53, -20.53], [124.0, -20.75], [123.75, -20.65], [123.5, -20.75], [123.25, -20.65], [123.0, -20.75], [122.75, -20.65], [122.5, -20.75], [122.25, -20.65], [122.0, -20.75], [121.75, -20.65], [121.5, -20.75], [121.25, -20.65], [121.0, -20.75], [120.75, -20.65], [120.5, -20.75], [120.25, -20.65], [120.0, -20.75], [119.47, -20.53]]]]}, "2023-12-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.47, -20.53], [119.25, -20.0], [119.47, -19.47], [120.0, -19.25], [120.25, -19.35], [120.5, -19.25], [120.75, -19.35], [120.82, -19.32], [120.97, -18.97], [121.32, -18.82], [121.35, -18.75], [121.25, -18.5], [121.47, -17.97], [121.82, -17.82], [121.85, -17.75], [121.75, -17.5], [121.97, -16.97], [122.5, -16.75], [123.03, -16.97], [123.25, -17.5], [123.15, -17.75], [123.18, -17.82], [123.53, -17.97], [123.75, -18.5], [123.65, -18.75], [123.68, -18.82], [124.03, -18.97], [124.18, -19.32], [124.53, -19.47], [124.75, -20.0], [124.53, -20.53], [124.0, -20.75], [123.75, -20.65], [123.5, -20.75], [123.25, -20.65], [123.0, -20.75], [122.75, -20.65], [122.5, -20.75], [122.25, -20.65], [122.0, -20.75], [121.75, -20.65], [121.5, -20.75], [121.25, -20.65], [121.0, -20.75], [120.75, -20.65], [120.5, -20.75], [120.25, -20.65], [120.0, -20.75], [119.47, -20.53]]]]}, "2023-12-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.47, -20.53], [119.25, -20.0], [119.47, -19.47], [120.0, -19.25], [120.25, -19.35], [120.5, -19.25], [120.75, -19.35], [120.82, -19.32], [120.97, -18.97], [121.32, -18.82], [121.35, -18.75], [121.25, -18.5], [121.47, -17.97], [122.0, -17.75], [122.53, -17.97], [122.68, -18.32], [123.03, -18.47], [123.18, -18.82], [123.53, -18.97], [123.75, -19.5], [123.65, -19.75], [123.75, -20.0], [123.53, -20.53], [123.0, -20.75], [122.75, -20.65], [122.5, -20.75], [122.25, -20.65], [122.0, -20.75], [121.75, -20.65], [121.5, -20.75], [121.25, -20.65], [121.0, -20.75], [120.75, -20.65], [120.5, -20.75], [120.25, -20.65], [120.0, -20.75], [119.47, -20.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.5853507702767047}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.6419766455865683}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.238596870102924, 28.585939323457126, 28.68271842403817, 28.68427045503961, 28.681027565111947]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.238596870102924, 27.42665112747926, 27.562946150393657, 27.04796330129659, 27.358001312942747]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.531191965942753, -2.7036507842247874, -2.6188706079312, -2.634128973399049, -2.601614877454178]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.531191965942753, -3.5853507702767047, -3.216315477998762, -3.0772929372881777, -3.1499426946320455]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3389251700707205, -1.587761666072384, -1.5520043384155606, -1.5542279590247008, -1.44719352789245]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3389251700707205, -1.911877526556606, -1.7995448860901735, -1.9479913808183116, -1.635637419325592]}}