{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:01.912866", "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": "2018-Sep-24_to_2018-Sep-27_158.5_-31.0"}, "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": 2018090000854}, "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": "September 24 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 27 2018"}, "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": 448735.7161009357}, "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": ["E.Australia", "New-Zealand", "S.Pacific-Ocean"]}, "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": ["Coral Sea", "South Pacific Ocean", "Tasman Sea"]}, "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": -31.0}, "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": 158.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "158.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 150.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 167.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -34.25}, "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": {"2018-09-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[151.32, -31.82], [151.47, -31.47], [151.82, -31.32], [151.97, -30.97], [152.38, -30.8], [152.25, -30.5], [152.47, -29.97], [153.0, -29.75], [153.5, -29.96], [154.0, -29.75], [154.25, -29.85], [154.5, -29.75], [154.75, -29.85], [154.82, -29.82], [154.97, -29.47], [155.32, -29.32], [155.35, -29.25], [155.25, -29.0], [155.47, -28.47], [156.0, -28.25], [156.25, -28.35], [156.32, -28.32], [156.35, -28.25], [156.25, -28.0], [156.47, -27.47], [157.0, -27.25], [157.53, -27.47], [157.68, -27.82], [157.75, -27.85], [158.0, -27.75], [158.25, -27.85], [158.5, -27.75], [159.03, -27.97], [159.18, -28.32], [159.25, -28.35], [159.5, -28.25], [159.75, -28.35], [159.82, -28.32], [159.97, -27.97], [160.5, -27.75], [160.75, -27.85], [160.82, -27.82], [160.85, -27.75], [160.75, -27.5], [160.85, -27.25], [160.75, -27.0], [160.97, -26.47], [161.5, -26.25], [161.75, -26.35], [162.0, -26.25], [162.53, -26.47], [162.75, -27.0], [162.65, -27.25], [162.75, -27.5], [162.65, -27.75], [162.75, -28.0], [162.63, -28.3], [163.03, -28.47], [163.18, -28.82], [163.53, -28.97], [163.68, -29.32], [164.03, -29.47], [164.18, -29.82], [164.25, -29.85], [164.5, -29.75], [164.75, -29.85], [165.0, -29.75], [165.25, -29.85], [165.5, -29.75], [165.75, -29.85], [166.0, -29.75], [166.25, -29.85], [166.5, -29.75], [167.03, -29.97], [167.25, -30.5], [167.15, -30.75], [167.25, -31.0], [167.15, -31.25], [167.18, -31.32], [167.53, -31.47], [167.75, -32.0], [167.53, -32.53], [167.18, -32.68], [167.03, -33.03], [166.5, -33.25], [166.25, -33.15], [166.0, -33.25], [165.47, -33.03], [165.25, -32.5], [165.35, -32.25], [165.32, -32.18], [165.25, -32.15], [165.0, -32.25], [164.47, -32.03], [164.32, -31.68], [163.97, -31.53], [163.82, -31.18], [163.75, -31.15], [163.5, -31.25], [163.25, -31.15], [163.0, -31.25], [162.75, -31.15], [162.5, -31.25], [162.25, -31.15], [162.0, -31.25], [161.47, -31.03], [161.32, -30.68], [161.0, -30.54], [160.5, -30.75], [160.25, -30.65], [160.18, -30.68], [160.13, -30.8], [160.53, -30.97], [160.68, -31.32], [161.03, -31.47], [161.25, -32.0], [161.03, -32.53], [160.68, -32.68], [160.53, -33.03], [160.18, -33.18], [160.03, -33.53], [159.68, -33.68], [159.53, -34.03], [159.0, -34.25], [158.75, -34.15], [158.5, -34.25], [158.25, -34.15], [158.18, -34.18], [158.03, -34.53], [157.5, -34.75], [156.97, -34.53], [156.82, -34.18], [156.47, -34.03], [156.32, -33.68], [156.25, -33.65], [156.0, -33.75], [155.75, -33.65], [155.5, -33.75], [154.97, -33.53], [154.82, -33.18], [154.47, -33.03], [154.32, -32.68], [154.25, -32.65], [154.0, -32.75], [153.47, -32.53], [153.32, -32.18], [153.25, -32.15], [153.0, -32.25], [152.75, -32.15], [152.68, -32.18], [152.53, -32.53], [152.18, -32.68], [152.03, -33.03], [151.68, -33.18], [151.53, -33.53], [151.0, -33.75], [150.47, -33.53], [150.25, -33.0], [150.47, -32.47], [150.82, -32.32], [150.97, -31.97], [151.32, -31.82]]]]}, "2018-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[151.32, -31.82], [151.47, -31.47], [151.82, -31.32], [151.97, -30.97], [152.38, -30.8], [152.25, -30.5], [152.47, -29.97], [153.0, -29.75], [153.5, -29.96], [154.0, -29.75], [154.25, -29.85], [154.5, -29.75], [154.75, -29.85], [154.82, -29.82], [154.97, -29.47], [155.32, -29.32], [155.35, -29.25], [155.25, -29.0], [155.47, -28.47], [156.0, -28.25], [156.25, -28.35], [156.32, -28.32], [156.35, -28.25], [156.25, -28.0], [156.47, -27.47], [157.0, -27.25], [157.53, -27.47], [157.68, -27.82], [157.75, -27.85], [158.0, -27.75], [158.25, -27.85], [158.5, -27.75], [159.03, -27.97], [159.18, -28.32], [159.25, -28.35], [159.5, -28.25], [159.75, -28.35], [159.82, -28.32], [159.97, -27.97], [160.5, -27.75], [160.75, -27.85], [160.82, -27.82], [160.85, -27.75], [160.75, -27.5], [160.85, -27.25], [160.75, -27.0], [160.97, -26.47], [161.5, -26.25], [161.75, -26.35], [162.0, -26.25], [162.53, -26.47], [162.75, -27.0], [162.65, -27.25], [162.75, -27.5], [162.65, -27.75], [162.75, -28.0], [162.63, -28.3], [163.03, -28.47], [163.18, -28.82], [163.53, -28.97], [163.68, -29.32], [163.75, -29.35], [164.0, -29.25], [164.25, -29.35], [164.5, -29.25], [164.75, -29.35], [165.0, -29.25], [165.25, -29.35], [165.5, -29.25], [165.75, -29.35], [166.0, -29.25], [166.53, -29.47], [166.68, -29.82], [167.03, -29.97], [167.25, -30.5], [167.15, -30.75], [167.25, -31.0], [167.15, -31.25], [167.18, -31.32], [167.53, -31.47], [167.75, -32.0], [167.53, -32.53], [167.18, -32.68], [167.03, -33.03], [166.5, -33.25], [166.25, -33.15], [166.0, -33.25], [165.47, -33.03], [165.25, -32.5], [165.35, -32.25], [165.32, -32.18], [165.25, -32.15], [165.0, -32.25], [164.47, -32.03], [164.32, -31.68], [163.97, -31.53], [163.82, -31.18], [163.75, -31.15], [163.5, -31.25], [163.25, -31.15], [163.0, -31.25], [162.75, -31.15], [162.5, -31.25], [162.25, -31.15], [162.0, -31.25], [161.47, -31.03], [161.32, -30.68], [161.0, -30.54], [160.5, -30.75], [160.25, -30.65], [160.18, -30.68], [160.13, -30.8], [160.53, -30.97], [160.68, -31.32], [161.03, -31.47], [161.25, -32.0], [161.03, -32.53], [160.68, -32.68], [160.53, -33.03], [160.18, -33.18], [160.03, -33.53], [159.68, -33.68], [159.53, -34.03], [159.0, -34.25], [158.75, -34.15], [158.5, -34.25], [158.25, -34.15], [158.18, -34.18], [158.03, -34.53], [157.5, -34.75], [156.97, -34.53], [156.82, -34.18], [156.47, -34.03], [156.32, -33.68], [156.25, -33.65], [156.0, -33.75], [155.75, -33.65], [155.5, -33.75], [154.97, -33.53], [154.82, -33.18], [154.47, -33.03], [154.32, -32.68], [154.25, -32.65], [154.0, -32.75], [153.47, -32.53], [153.32, -32.18], [153.25, -32.15], [153.0, -32.25], [152.75, -32.15], [152.68, -32.18], [152.53, -32.53], [152.18, -32.68], [152.03, -33.03], [151.68, -33.18], [151.53, -33.53], [151.0, -33.75], [150.47, -33.53], [150.25, -33.0], [150.47, -32.47], [150.82, -32.32], [150.97, -31.97], [151.32, -31.82]]]]}, "2018-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[151.32, -31.82], [151.47, -31.47], [151.82, -31.32], [151.97, -30.97], [152.38, -30.8], [152.25, -30.5], [152.47, -29.97], [153.0, -29.75], [153.5, -29.96], [154.0, -29.75], [154.25, -29.85], [154.5, -29.75], [154.75, -29.85], [154.82, -29.82], [154.97, -29.47], [155.32, -29.32], [155.35, -29.25], [155.25, -29.0], [155.47, -28.47], [156.0, -28.25], [156.25, -28.35], [156.32, -28.32], [156.35, -28.25], [156.25, -28.0], [156.47, -27.47], [157.0, -27.25], [157.53, -27.47], [157.68, -27.82], [157.75, -27.85], [158.0, -27.75], [158.25, -27.85], [158.5, -27.75], [159.03, -27.97], [159.18, -28.32], [159.25, -28.35], [159.5, -28.25], [159.75, -28.35], [159.82, -28.32], [159.97, -27.97], [160.5, -27.75], [160.75, -27.85], [160.82, -27.82], [160.85, -27.75], [160.75, -27.5], [160.85, -27.25], [160.75, -27.0], [160.97, -26.47], [161.5, -26.25], [161.75, -26.35], [162.0, -26.25], [162.53, -26.47], [162.75, -27.0], [162.65, -27.25], [162.75, -27.5], [162.65, -27.75], [162.75, -28.0], [162.63, -28.3], [163.03, -28.47], [163.18, -28.82], [163.53, -28.97], [163.68, -29.32], [163.75, -29.35], [164.0, -29.25], [164.25, -29.35], [164.5, -29.25], [164.75, -29.35], [165.0, -29.25], [165.25, -29.35], [165.5, -29.25], [165.75, -29.35], [166.0, -29.25], [166.53, -29.47], [166.68, -29.82], [167.03, -29.97], [167.25, -30.5], [167.15, -30.75], [167.25, -31.0], [167.15, -31.25], [167.18, -31.32], [167.53, -31.47], [167.75, -32.0], [167.53, -32.53], [167.18, -32.68], [167.03, -33.03], [166.5, -33.25], [166.25, -33.15], [166.0, -33.25], [165.47, -33.03], [165.25, -32.5], [165.35, -32.25], [165.32, -32.18], [165.25, -32.15], [165.0, -32.25], [164.47, -32.03], [164.32, -31.68], [163.97, -31.53], [163.82, -31.18], [163.75, -31.15], [163.5, -31.25], [163.25, -31.15], [163.0, -31.25], [162.75, -31.15], [162.5, -31.25], [162.25, -31.15], [162.0, -31.25], [161.47, -31.03], [161.32, -30.68], [161.0, -30.54], [160.5, -30.75], [160.25, -30.65], [160.18, -30.68], [160.13, -30.8], [160.53, -30.97], [160.68, -31.32], [161.03, -31.47], [161.25, -32.0], [161.03, -32.53], [160.68, -32.68], [160.53, -33.03], [160.18, -33.18], [160.03, -33.53], [159.68, -33.68], [159.53, -34.03], [159.0, -34.25], [158.75, -34.15], [158.5, -34.25], [158.25, -34.15], [158.18, -34.18], [158.03, -34.53], [157.5, -34.75], [156.97, -34.53], [156.82, -34.18], [156.47, -34.03], [156.32, -33.68], [156.25, -33.65], [156.0, -33.75], [155.75, -33.65], [155.5, -33.75], [154.97, -33.53], [154.82, -33.18], [154.47, -33.03], [154.32, -32.68], [154.25, -32.65], [154.0, -32.75], [153.47, -32.53], [153.32, -32.18], [153.25, -32.15], [153.0, -32.25], [152.75, -32.15], [152.68, -32.18], [152.53, -32.53], [152.18, -32.68], [152.03, -33.03], [151.68, -33.18], [151.53, -33.53], [151.0, -33.75], [150.47, -33.53], [150.25, -33.0], [150.47, -32.47], [150.82, -32.32], [150.97, -31.97], [151.32, -31.82]]]]}, "2018-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[158.47, -29.97], [159.0, -29.75], [159.53, -29.97], [159.75, -30.5], [159.63, -30.8], [160.03, -30.97], [160.25, -31.5], [160.03, -32.03], [159.5, -32.25], [159.25, -32.15], [159.0, -32.25], [158.75, -32.15], [158.5, -32.25], [158.25, -32.15], [158.0, -32.25], [157.47, -32.03], [157.25, -31.5], [157.47, -30.97], [157.82, -30.82], [157.97, -30.47], [158.32, -30.32], [158.47, -29.97]]], [[[164.0, -29.25], [164.25, -29.35], [164.5, -29.25], [164.75, -29.35], [165.0, -29.25], [165.25, -29.35], [165.5, -29.25], [165.75, -29.35], [166.0, -29.25], [166.53, -29.47], [166.75, -30.0], [166.65, -30.25], [166.68, -30.32], [167.03, -30.47], [167.25, -31.0], [167.15, -31.25], [167.25, -31.5], [167.03, -32.03], [166.5, -32.25], [166.25, -32.15], [166.0, -32.25], [165.47, -32.03], [165.32, -31.68], [165.25, -31.65], [165.0, -31.75], [164.75, -31.65], [164.5, -31.75], [163.97, -31.53], [163.75, -31.0], [163.85, -30.75], [163.82, -30.68], [163.47, -30.53], [163.25, -30.0], [163.47, -29.47], [164.0, -29.25]]], [[[157.75, -29.0], [157.97, -28.47], [158.5, -28.25], [159.03, -28.47], [159.25, -29.0], [159.03, -29.53], [158.5, -29.75], [157.97, -29.53], [157.75, -29.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.137477817636523}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.256545889739645}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.92289327816485, 15.839031923270397, 15.953173015882271, 16.030919586678067]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.337478811542326, 11.510910739758742, 10.71223239743557, 15.40194519654409]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.2309576354082097, -2.344458672640415, -2.2635124718044852, -1.7418441954426631]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.4772258011205395, -5.036264972119568, -5.137477817636523, -2.0802963738304356]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6938233482132203, -1.8360570628303, -1.7708060426282681, -1.600363874729653]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0775433074839706, -2.230842813855361, -2.1183913855372296, -1.7826062551992001]}}