{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:20.488576", "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": "2019-Mar-23_to_2019-Mar-26_118.0_-21.0"}, "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": 2019030000660}, "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": "March 23 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 26 2019"}, "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": 60559.64374325133}, "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": -21.0}, "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": 118.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "118.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 116.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 120.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -22.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -19.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.47, -20.47], [117.0, -20.25], [117.25, -20.35], [117.32, -20.32], [117.47, -19.97], [118.0, -19.75], [118.25, -19.85], [118.5, -19.75], [118.75, -19.85], [119.0, -19.75], [119.25, -19.85], [119.32, -19.82], [119.47, -19.47], [120.0, -19.25], [120.53, -19.47], [120.75, -20.0], [120.65, -20.25], [120.75, -20.5], [120.53, -21.03], [120.18, -21.18], [120.03, -21.53], [119.5, -21.75], [119.25, -21.65], [119.18, -21.68], [119.03, -22.03], [118.68, -22.18], [118.53, -22.53], [118.0, -22.75], [117.75, -22.65], [117.5, -22.75], [116.97, -22.53], [116.82, -22.18], [116.47, -22.03], [116.25, -21.5], [116.35, -21.25], [116.25, -21.0], [116.47, -20.47]]]]}, "2019-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.97, -20.47], [116.5, -20.25], [116.75, -20.35], [117.0, -20.25], [117.25, -20.35], [117.32, -20.32], [117.47, -19.97], [118.0, -19.75], [118.25, -19.85], [118.5, -19.75], [118.75, -19.85], [119.0, -19.75], [119.25, -19.85], [119.32, -19.82], [119.47, -19.47], [120.0, -19.25], [120.53, -19.47], [120.75, -20.0], [120.65, -20.25], [120.75, -20.5], [120.53, -21.03], [120.18, -21.18], [120.03, -21.53], [119.5, -21.75], [119.25, -21.65], [119.18, -21.68], [119.03, -22.03], [118.68, -22.18], [118.53, -22.53], [118.0, -22.75], [117.75, -22.65], [117.5, -22.75], [117.25, -22.65], [117.0, -22.75], [116.47, -22.53], [116.32, -22.18], [115.97, -22.03], [115.75, -21.5], [115.85, -21.25], [115.75, -21.0], [115.97, -20.47]]]]}, "2019-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.97, -20.47], [116.5, -20.25], [116.75, -20.35], [117.0, -20.25], [117.25, -20.35], [117.32, -20.32], [117.47, -19.97], [118.0, -19.75], [118.25, -19.85], [118.5, -19.75], [118.75, -19.85], [119.0, -19.75], [119.25, -19.85], [119.32, -19.82], [119.47, -19.47], [120.0, -19.25], [120.53, -19.47], [120.75, -20.0], [120.65, -20.25], [120.75, -20.5], [120.53, -21.03], [120.18, -21.18], [120.03, -21.53], [119.5, -21.75], [119.25, -21.65], [119.18, -21.68], [119.03, -22.03], [118.68, -22.18], [118.53, -22.53], [118.0, -22.75], [117.75, -22.65], [117.5, -22.75], [117.25, -22.65], [117.0, -22.75], [116.47, -22.53], [116.32, -22.18], [115.97, -22.03], [115.75, -21.5], [115.85, -21.25], [115.75, -21.0], [115.97, -20.47]]]]}, "2019-03-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.97, -20.47], [116.5, -20.25], [116.75, -20.35], [117.0, -20.25], [117.25, -20.35], [117.5, -20.25], [117.75, -20.35], [118.0, -20.25], [118.53, -20.47], [118.75, -21.0], [118.65, -21.25], [118.75, -21.5], [118.53, -22.03], [118.18, -22.18], [118.03, -22.53], [117.5, -22.75], [117.25, -22.65], [117.0, -22.75], [116.47, -22.53], [116.32, -22.18], [115.97, -22.03], [115.75, -21.5], [115.85, -21.25], [115.75, -21.0], [115.97, -20.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.8190773295149825}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.781113076781296}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.52631471090308, 25.05568714912596, 25.70138359353308, 26.080021168810106]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.541800959257728, 23.120563741213687, 23.634081467995316, 24.611045345012826]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.352126495272943, -5.555070636559468, -4.716966236501061, -4.06268641255067]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.943707590724159, -6.8190773295149825, -6.108833787811591, -4.7579313164641235]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8469542085557649, -2.2501864326486474, -1.8676842086612142, -1.5692883695157942]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.275160276062883, -2.5801842241904316, -2.146516386186646, -1.7022616110405164]}}