{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:00.064255", "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": "2015-May-27_to_2015-May-30_120.0_-33.5"}, "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": 2015050000904}, "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": "May 27 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 30 2015"}, "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": 77040.31151692665}, "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": ["S.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": ["Great Australian Bight", "Indian Ocean"]}, "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": -33.5}, "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": 120.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "120.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 115.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 122.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -35.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -32.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.0, -32.25], [120.5, -32.46], [120.82, -32.32], [120.97, -31.97], [121.5, -31.75], [122.03, -31.97], [122.18, -32.32], [122.53, -32.47], [122.75, -33.0], [122.53, -33.53], [122.0, -33.75], [121.75, -33.65], [121.68, -33.68], [121.53, -34.03], [121.0, -34.25], [120.75, -34.15], [120.5, -34.25], [120.25, -34.15], [120.0, -34.25], [119.75, -34.15], [119.5, -34.25], [118.97, -34.03], [118.75, -33.5], [118.97, -32.97], [119.32, -32.82], [119.47, -32.47], [120.0, -32.25]]]]}, "2015-05-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.97, -32.97], [115.5, -32.75], [116.03, -32.97], [116.18, -33.32], [116.25, -33.35], [116.5, -33.25], [116.75, -33.35], [117.0, -33.25], [117.25, -33.35], [117.5, -33.25], [117.75, -33.35], [118.0, -33.25], [118.25, -33.35], [118.5, -33.25], [118.75, -33.35], [118.82, -33.32], [118.97, -32.97], [119.32, -32.82], [119.47, -32.47], [120.0, -32.25], [120.5, -32.46], [120.82, -32.32], [120.97, -31.97], [121.5, -31.75], [122.03, -31.97], [122.18, -32.32], [122.53, -32.47], [122.68, -32.82], [123.03, -32.97], [123.25, -33.5], [123.03, -34.03], [122.5, -34.25], [122.25, -34.15], [122.0, -34.25], [121.75, -34.15], [121.5, -34.25], [121.25, -34.15], [121.18, -34.18], [121.03, -34.53], [120.5, -34.75], [120.25, -34.65], [120.0, -34.75], [119.7, -34.62], [119.53, -35.03], [119.0, -35.25], [118.75, -35.15], [118.5, -35.25], [118.25, -35.15], [118.18, -35.18], [118.03, -35.53], [117.5, -35.75], [116.97, -35.53], [116.82, -35.18], [116.75, -35.15], [116.5, -35.25], [115.97, -35.03], [115.82, -34.68], [115.75, -34.65], [115.5, -34.75], [114.97, -34.53], [114.75, -34.0], [114.85, -33.75], [114.75, -33.5], [114.97, -32.97]]]]}, "2015-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.97, -32.97], [115.5, -32.75], [116.03, -32.97], [116.18, -33.32], [116.25, -33.35], [116.5, -33.25], [116.75, -33.35], [117.0, -33.25], [117.25, -33.35], [117.5, -33.25], [117.75, -33.35], [118.0, -33.25], [118.25, -33.35], [118.5, -33.25], [118.75, -33.35], [118.82, -33.32], [118.97, -32.97], [119.32, -32.82], [119.47, -32.47], [120.0, -32.25], [120.5, -32.46], [120.82, -32.32], [120.97, -31.97], [121.5, -31.75], [122.03, -31.97], [122.18, -32.32], [122.53, -32.47], [122.68, -32.82], [123.03, -32.97], [123.25, -33.5], [123.03, -34.03], [122.5, -34.25], [122.25, -34.15], [122.0, -34.25], [121.75, -34.15], [121.5, -34.25], [121.25, -34.15], [121.18, -34.18], [121.03, -34.53], [120.5, -34.75], [120.25, -34.65], [120.0, -34.75], [119.7, -34.62], [119.53, -35.03], [119.0, -35.25], [118.75, -35.15], [118.5, -35.25], [118.25, -35.15], [118.18, -35.18], [118.03, -35.53], [117.5, -35.75], [116.97, -35.53], [116.82, -35.18], [116.75, -35.15], [116.5, -35.25], [115.97, -35.03], [115.82, -34.68], [115.75, -34.65], [115.5, -34.75], [114.97, -34.53], [114.75, -34.0], [114.85, -33.75], [114.75, -33.5], [114.97, -32.97]]]]}, "2015-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.97, -32.97], [115.5, -32.75], [116.03, -32.97], [116.18, -33.32], [116.25, -33.35], [116.5, -33.25], [116.75, -33.35], [117.0, -33.25], [117.25, -33.35], [117.5, -33.25], [117.75, -33.35], [118.0, -33.25], [118.25, -33.35], [118.5, -33.25], [118.75, -33.35], [118.82, -33.32], [118.97, -32.97], [119.32, -32.82], [119.47, -32.47], [120.0, -32.25], [120.5, -32.46], [120.82, -32.32], [120.97, -31.97], [121.5, -31.75], [122.03, -31.97], [122.18, -32.32], [122.53, -32.47], [122.68, -32.82], [123.03, -32.97], [123.25, -33.5], [123.03, -34.03], [122.5, -34.25], [122.25, -34.15], [122.0, -34.25], [121.75, -34.15], [121.5, -34.25], [121.25, -34.15], [121.18, -34.18], [121.03, -34.53], [120.5, -34.75], [120.25, -34.65], [120.0, -34.75], [119.7, -34.62], [119.53, -35.03], [119.0, -35.25], [118.75, -35.15], [118.5, -35.25], [118.25, -35.15], [118.18, -35.18], [118.03, -35.53], [117.5, -35.75], [116.97, -35.53], [116.82, -35.18], [116.75, -35.15], [116.5, -35.25], [115.97, -35.03], [115.82, -34.68], [115.75, -34.65], [115.5, -34.75], [114.97, -34.53], [114.75, -34.0], [114.85, -33.75], [114.75, -33.5], [114.97, -32.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.454942436598685}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.295084369269855}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.532888183252851, 9.581093630643807, 9.592283832693454, 9.647625870444074]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [8.028176532328473, 7.711537426327993, 7.6833757724055545, 8.138270250212145]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.2174497572341605, -3.3501043849832306, -3.3368807272870185, -3.2215583791500233]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.9687997070961956, -4.454942436598685, -4.181932657599873, -3.737411025961137]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.384416107390881, -1.590548261254847, -1.553282732966084, -1.4648619873110138]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6025953316794823, -2.113717742952191, -1.83865744083987, -1.6529218248535194]}}