{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:22:10.018088", "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": "2022-Aug-09_to_2022-Aug-11_114.0_-22.0"}, "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": 2022080000452}, "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": "August 09 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 11 2022"}, "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": 110843.4872422157}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Oceania"]}, "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": -22.0}, "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": 114.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "114.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 114.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 120.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -26.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -22.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[113.25, -22.0], [113.47, -21.47], [114.0, -21.25], [114.25, -21.35], [114.5, -21.25], [114.75, -21.35], [115.0, -21.25], [115.25, -21.35], [115.5, -21.25], [115.75, -21.35], [116.0, -21.25], [116.25, -21.35], [116.5, -21.25], [116.75, -21.35], [117.0, -21.25], [117.25, -21.35], [117.5, -21.25], [118.03, -21.47], [118.18, -21.82], [118.53, -21.97], [118.68, -22.32], [119.03, -22.47], [119.25, -23.0], [119.15, -23.25], [119.25, -23.5], [119.04, -24.0], [119.18, -24.32], [119.53, -24.47], [119.75, -25.0], [119.65, -25.25], [119.68, -25.32], [119.75, -25.35], [120.0, -25.25], [120.53, -25.47], [120.75, -26.0], [120.53, -26.53], [120.0, -26.75], [119.75, -26.65], [119.5, -26.75], [118.97, -26.53], [118.82, -26.18], [118.47, -26.03], [118.25, -25.5], [118.35, -25.25], [118.32, -25.18], [118.25, -25.15], [118.0, -25.25], [117.47, -25.03], [117.32, -24.68], [116.97, -24.53], [116.82, -24.18], [116.47, -24.03], [116.32, -23.68], [116.25, -23.65], [116.0, -23.75], [115.75, -23.65], [115.5, -23.75], [115.25, -23.65], [115.0, -23.75], [114.75, -23.65], [114.5, -23.75], [114.25, -23.65], [114.0, -23.75], [113.47, -23.53], [113.25, -23.0], [113.35, -22.75], [113.25, -22.5], [113.35, -22.25], [113.25, -22.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.Australia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[113.25, -22.5], [113.35, -22.25], [113.25, -22.0], [113.47, -21.47], [114.0, -21.25], [114.25, -21.35], [114.5, -21.25], [114.75, -21.35], [115.0, -21.25], [115.25, -21.35], [115.5, -21.25], [115.75, -21.35], [116.0, -21.25], [116.25, -21.35], [116.5, -21.25], [116.75, -21.35], [117.0, -21.25], [117.25, -21.35], [117.5, -21.25], [118.03, -21.47], [118.18, -21.82], [118.53, -21.97], [118.68, -22.32], [119.03, -22.47], [119.25, -23.0], [119.15, -23.25], [119.25, -23.5], [119.04, -24.0], [119.18, -24.32], [119.53, -24.47], [119.75, -25.0], [119.65, -25.25], 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"MultiPolygon", "coordinates": [[[[113.25, -22.5], [113.35, -22.25], [113.25, -22.0], [113.47, -21.47], [114.0, -21.25], [114.25, -21.35], [114.5, -21.25], [114.75, -21.35], [115.0, -21.25], [115.25, -21.35], [115.5, -21.25], [115.75, -21.35], [116.0, -21.25], [116.25, -21.35], [116.5, -21.25], [116.75, -21.35], [117.0, -21.25], [117.25, -21.35], [117.5, -21.25], [118.03, -21.47], [118.18, -21.82], [118.53, -21.97], [118.68, -22.32], [119.03, -22.47], [119.25, -23.0], [119.15, -23.25], [119.25, -23.5], [119.04, -24.0], [119.18, -24.32], [119.53, -24.47], [119.75, -25.0], [119.65, -25.25], [119.68, -25.32], [119.75, -25.35], [120.0, -25.25], [120.53, -25.47], [120.75, -26.0], [120.53, -26.53], [120.0, -26.75], [119.75, -26.65], [119.5, -26.75], [118.97, -26.53], [118.82, -26.18], [118.47, -26.03], [118.25, -25.5], [118.35, -25.25], [118.32, -25.18], [118.25, -25.15], [118.0, -25.25], [117.47, -25.03], [117.32, -24.68], [116.97, -24.53], [116.82, -24.18], [116.47, -24.03], [116.32, -23.68], [116.25, -23.65], [116.0, -23.75], [115.75, -23.65], [115.5, -23.75], [115.25, -23.65], [115.0, -23.75], [114.75, -23.65], [114.5, -23.75], [114.25, -23.65], [114.0, -23.75], [113.47, -23.53], [113.25, -23.0], [113.35, -22.75], [113.25, -22.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.8803469438853995}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.9348306129575668}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.40891465565312, 14.023727547009912, 15.576595583426638]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.089998422617782, 9.718241028803732, 11.353881402282298]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.4063438846715903, -4.929816133632348, -3.4683318205687623]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.2509993911241395, -5.8803469438853995, -4.326873869250846]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5707469758378965, -2.1643387163475447, -1.4955125724202745]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8593897337989875, -2.558440362040955, -1.980004196679607]}}