{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:00.996107", "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": "2016-Apr-06_to_2016-Apr-08_129.0_-30.0"}, "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": 2016040000164}, "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": "April 06 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 08 2016"}, "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": 55818.8662911399}, "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": []}, "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": -30.0}, "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": 129.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "129.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 128.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 134.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -31.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -29.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.25, -30.0], [128.47, -29.47], [129.0, -29.25], [129.53, -29.47], [129.68, -29.82], [129.75, -29.85], [129.82, -29.82], [129.97, -29.47], [130.5, -29.25], [130.75, -29.35], [131.0, -29.25], [131.25, -29.35], [131.5, -29.25], [132.03, -29.47], [132.18, -29.82], [132.25, -29.85], [132.5, -29.75], [132.75, -29.85], [133.0, -29.75], [133.53, -29.97], [133.68, -30.32], [134.03, -30.47], [134.18, -30.82], [134.53, -30.97], [134.75, -31.5], [134.53, -32.03], [134.0, -32.25], [133.75, -32.15], [133.5, -32.25], [133.25, -32.15], [133.0, -32.25], [132.47, -32.03], [132.32, -31.68], [132.25, -31.65], [132.0, -31.75], [131.75, -31.65], [131.5, -31.75], [131.25, -31.65], [131.0, -31.75], [130.47, -31.53], [130.32, -31.18], [130.25, -31.15], [130.0, -31.25], [129.75, -31.15], [129.5, -31.25], [128.97, -31.03], [128.82, -30.68], [128.47, -30.53], [128.25, -30.0]]]]}, "2016-04-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.25, -30.0], [128.47, -29.47], [129.0, -29.25], [129.53, -29.47], [129.68, -29.82], [129.75, -29.85], [129.82, -29.82], [129.97, -29.47], [130.5, -29.25], [130.75, -29.35], [131.0, -29.25], [131.25, -29.35], [131.5, -29.25], [132.03, -29.47], [132.18, -29.82], [132.25, -29.85], [132.5, -29.75], [132.75, -29.85], [133.0, -29.75], [133.53, -29.97], [133.68, -30.32], [134.03, -30.47], [134.18, -30.82], [134.53, -30.97], [134.75, -31.5], [134.53, -32.03], [134.0, -32.25], [133.75, -32.15], [133.5, -32.25], [133.25, -32.15], [133.0, -32.25], [132.47, -32.03], [132.32, -31.68], [132.25, -31.65], [132.0, -31.75], [131.75, -31.65], [131.5, -31.75], [131.25, -31.65], [131.0, -31.75], [130.47, -31.53], [130.32, -31.18], [130.25, -31.15], [130.0, -31.25], [129.75, -31.15], [129.5, -31.25], [128.97, -31.03], [128.82, -30.68], [128.47, -30.53], [128.25, -30.0]]]]}, "2016-04-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.25, -30.0], [128.47, -29.47], [129.0, -29.25], [129.53, -29.47], [129.68, -29.82], [129.75, -29.85], [129.82, -29.82], [129.97, -29.47], [130.5, -29.25], [130.75, -29.35], [131.0, -29.25], [131.25, -29.35], [131.5, -29.25], [132.03, -29.47], [132.18, -29.82], [132.25, -29.85], [132.5, -29.75], [132.75, -29.85], [133.0, -29.75], [133.53, -29.97], [133.68, -30.32], [134.03, -30.47], [134.18, -30.82], [134.53, -30.97], [134.75, -31.5], [134.53, -32.03], [134.0, -32.25], [133.75, -32.15], [133.5, -32.25], [133.25, -32.15], [133.0, -32.25], [132.47, -32.03], [132.32, -31.68], [132.25, -31.65], [132.0, -31.75], [131.75, -31.65], [131.5, -31.75], [131.25, -31.65], [131.0, -31.75], [130.47, -31.53], [130.32, -31.18], [130.25, -31.15], [130.0, -31.25], [129.75, -31.15], [129.5, -31.25], [128.97, -31.03], [128.82, -30.68], [128.47, -30.53], [128.25, -30.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.773566612068919}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.005047228076358}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.350201064890769, 14.180844442141506, 15.413858781403633]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.631021043965404, 12.55751048389078, 14.675883602022623]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.527765330039859, -5.822066217713624, -4.66531013647559]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.312476512638227, -6.773566612068919, -5.415070706958659]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2368831591681213, -1.5697187823769332, -1.2537081510250672]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5190603469389785, -1.7023269307281073, -1.4215342324367364]}}