{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:29.246813", "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": "2017-Jul-31_to_2017-Aug-03_115.5_-30.5"}, "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": 2017070001070}, "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": "July 31 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 03 2017"}, "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": 84425.35477912785}, "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", "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": ["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": -30.5}, "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": 115.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "115.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 114.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 118.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -32.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -29.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.35, -31.75], [114.25, -31.5], [114.35, -31.25], 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[114.25, -30.5], [114.47, -29.97], [114.82, -29.82], [114.85, -29.75], [114.75, -29.5], [114.97, -28.97], [115.5, -28.75], [116.03, -28.97], [116.18, -29.32], [116.25, -29.35], [116.32, -29.32], [116.47, -28.97], [117.0, -28.75], [117.53, -28.97], [117.75, -29.5], [117.53, -30.03], [117.18, -30.18], [117.15, -30.25], [117.25, -30.5], [117.15, -30.75], [117.18, -30.82], [117.53, -30.97], [117.68, -31.32], [118.03, -31.47], [118.18, -31.82], [118.25, -31.85], [118.5, -31.75], [119.03, -31.97], [119.25, -32.5], [119.03, -33.03], [118.5, -33.25], [118.25, -33.15], [118.0, -33.25], [117.75, -33.15], [117.5, -33.25], [117.25, -33.15], [117.0, -33.25], [116.75, -33.15], [116.5, -33.25], [116.25, -33.15], [116.0, -33.25], [115.75, -33.15], [115.5, -33.25], [115.25, -33.15], [115.0, -33.25], [114.47, -33.03], [114.25, -32.5], [114.35, -32.25], [114.25, -32.0], [114.35, -31.75]]]]}, "2017-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.47, -31.47], [117.0, -31.25], [117.25, -31.35], [117.5, -31.25], [118.03, -31.47], [118.18, -31.82], [118.25, -31.85], [118.5, -31.75], [119.03, -31.97], [119.25, -32.5], [119.03, -33.03], [118.5, -33.25], [118.25, -33.15], [118.0, -33.25], [117.75, -33.15], [117.5, -33.25], [117.25, -33.15], [117.0, -33.25], [116.47, -33.03], [116.25, -32.5], [116.35, -32.25], [116.25, -32.0], [116.47, -31.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.764501507206319}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.515025446425663}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.119597883180177, 9.035679364415046, 8.726164820732208, 7.626129541789112]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.761169710259651, 6.408063710874444, 5.997372154296556, 7.183525958557539]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.9900881533910644, -3.667412705939654, -3.9444750676536415, -2.861602783296623]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.746406301193815, -4.563506090825456, -5.764501507206319, -3.1202083687540494]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6297581335577132, -1.945167514799584, -2.2091540039812605, -1.3809489849630419]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.228274642322782, -2.210714968804179, -3.056936566655785, -1.5082686247958779]}}