{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:44.387673", "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-Feb-21_to_2016-Feb-27_113.5_-23.5"}, "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": 2016020000558}, "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": "February 21 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 27 2016"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 169140.14989099198}, "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", "N.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": -23.5}, "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": 113.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "113.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 110.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 114.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -24.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -19.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.75, -24.0], [111.97, -23.47], [112.5, -23.25], [112.75, -23.35], [113.0, -23.25], [113.53, -23.47], [113.75, -24.0], [113.65, -24.25], [113.75, -24.5], [113.53, -25.03], [113.0, -25.25], [112.47, -25.03], [112.32, -24.68], [111.97, -24.53], [111.75, -24.0]]]]}, "2016-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.97, -22.97], [112.5, -22.75], [112.75, -22.85], [113.0, -22.75], [113.53, -22.97], [113.75, -23.5], [113.65, -23.75], [113.75, -24.0], [113.65, -24.25], [113.75, -24.5], [113.53, -25.03], [113.0, -25.25], [112.47, -25.03], [112.32, -24.68], [111.97, -24.53], [111.75, -24.0], [111.85, -23.75], [111.75, -23.5], [111.97, -22.97]]]]}, "2016-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[110.35, -21.25], [110.25, -21.0], [110.47, -20.47], [110.82, -20.32], [110.85, -20.25], [110.75, -20.0], [110.97, -19.47], [111.32, -19.32], [111.47, -18.97], [112.0, -18.75], [112.25, -18.85], [112.5, -18.75], [113.03, -18.97], [113.18, -19.32], [113.25, -19.35], [113.5, -19.25], [114.03, -19.47], [114.18, -19.82], [114.53, -19.97], [114.75, -20.5], [114.65, -20.75], [114.75, -21.0], [114.65, -21.25], [114.75, -21.5], [114.65, -21.75], [114.75, -22.0], [114.65, -22.25], [114.75, -22.5], [114.65, -22.75], [114.75, -23.0], [114.65, -23.25], [114.75, -23.5], [114.53, -24.03], [114.18, -24.18], [114.03, -24.53], [113.68, -24.68], [113.53, -25.03], [113.0, -25.25], [112.47, -25.03], [112.32, -24.68], [112.0, -24.54], [111.5, -24.75], [111.25, -24.65], [111.0, -24.75], [110.47, -24.53], [110.25, -24.0], [110.47, -23.47], [110.82, -23.32], [110.85, -23.25], [110.75, -23.0], [110.85, -22.75], [110.82, -22.68], [110.47, -22.53], [110.25, -22.0], [110.35, -21.75], [110.25, -21.5], [110.35, -21.25]]]]}, "2016-02-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[110.35, -21.25], [110.25, -21.0], [110.47, -20.47], [110.82, -20.32], [110.85, -20.25], [110.75, -20.0], [110.97, -19.47], [111.32, -19.32], [111.47, -18.97], [112.0, -18.75], [112.25, -18.85], [112.5, -18.75], [113.03, -18.97], [113.18, -19.32], [113.25, -19.35], [113.5, -19.25], [114.03, -19.47], [114.18, -19.82], [114.53, -19.97], [114.75, -20.5], [114.65, -20.75], [114.68, -20.82], [115.03, -20.97], [115.25, -21.5], [115.03, -22.03], [114.68, -22.18], [114.65, -22.25], [114.75, -22.5], [114.65, -22.75], [114.75, -23.0], [114.65, -23.25], [114.75, -23.5], [114.53, -24.03], [114.18, -24.18], [114.03, -24.53], [113.68, -24.68], [113.53, -25.03], [113.0, -25.25], [112.47, -25.03], [112.32, -24.68], [112.0, -24.54], [111.5, -24.75], [111.25, -24.65], [111.0, -24.75], [110.47, -24.53], [110.25, -24.0], [110.47, -23.47], [110.82, -23.32], [110.85, -23.25], [110.75, -23.0], [110.85, -22.75], [110.82, -22.68], [110.47, -22.53], [110.25, -22.0], [110.35, -21.75], [110.25, -21.5], [110.35, -21.25]]]]}, "2016-02-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[110.35, -21.25], [110.25, -21.0], [110.47, -20.47], [110.82, -20.32], [110.85, -20.25], [110.75, -20.0], [110.97, -19.47], [111.32, -19.32], [111.47, -18.97], [112.0, -18.75], [112.25, -18.85], [112.5, -18.75], [113.03, -18.97], [113.18, -19.32], [113.25, -19.35], [113.5, -19.25], [114.03, -19.47], [114.18, -19.82], [114.53, -19.97], [114.75, -20.5], [114.65, -20.75], [114.68, -20.82], [115.03, -20.97], [115.25, -21.5], [115.03, -22.03], [114.68, -22.18], [114.65, -22.25], [114.75, -22.5], [114.65, -22.75], [114.75, -23.0], [114.65, -23.25], [114.75, -23.5], [114.53, -24.03], [114.18, -24.18], [114.03, -24.53], [113.5, -24.75], [113.25, -24.65], [113.0, -24.75], [112.75, -24.65], [112.5, -24.75], [112.0, -24.54], [111.5, -24.75], [111.25, -24.65], [111.0, -24.75], [110.47, -24.53], [110.25, -24.0], [110.47, -23.47], [110.82, -23.32], [110.85, -23.25], [110.75, -23.0], [110.85, -22.75], [110.82, -22.68], [110.47, -22.53], [110.25, -22.0], [110.35, -21.75], [110.25, -21.5], [110.35, -21.25]]]]}, "2016-02-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[110.85, -21.25], [110.75, -21.0], [110.85, -20.75], [110.75, -20.5], [110.97, -19.97], [111.32, -19.82], [111.35, -19.75], [111.25, -19.5], [111.47, -18.97], [112.0, -18.75], [112.25, -18.85], [112.5, -18.75], [113.03, -18.97], [113.18, -19.32], [113.53, -19.47], [113.75, -20.0], [113.65, -20.25], [113.68, -20.32], [114.03, -20.47], [114.18, -20.82], [114.25, -20.85], [114.5, -20.75], [115.03, -20.97], [115.25, -21.5], [115.03, -22.03], [114.68, -22.18], [114.54, -22.5], [114.75, -23.0], [114.65, -23.25], [114.75, -23.5], [114.53, -24.03], [114.18, -24.18], [114.03, -24.53], [113.5, -24.75], [112.97, -24.53], [112.75, -24.0], [112.85, -23.75], [112.75, -23.5], [112.97, -22.97], [113.32, -22.82], [113.43, -22.57], [113.0, -22.75], [112.75, -22.65], [112.68, -22.68], [112.53, -23.03], [112.0, -23.25], [111.47, -23.03], [111.32, -22.68], [110.97, -22.53], [110.75, -22.0], [110.85, -21.75], [110.75, -21.5], [110.85, -21.25]]]]}, "2016-02-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[113.5, -22.75], [114.03, -22.97], [114.25, -23.5], [114.15, -23.75], [114.25, -24.0], [114.03, -24.53], [113.5, -24.75], [112.97, -24.53], [112.75, -24.0], [112.85, -23.75], [112.75, -23.5], [112.97, -22.97], [113.5, -22.75]]], [[[110.97, -22.53], [110.75, -22.0], [110.97, -21.47], [111.5, -21.25], [112.03, -21.47], [112.25, -22.0], [112.03, -22.53], [111.5, -22.75], [110.97, -22.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.7513081800854025}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.7914146223969476}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.281795186957993, 23.69008538258663, 24.49606731860564, 24.43514315104744, 24.72766934376193, 25.285082021147446, 24.567731955560816]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.03510663519745, 23.312248371501425, 22.581638296843153, 22.64183438757317, 23.397282008517266, 24.284708226615294, 24.379064267062915]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.8395738597532538, -1.6465279288234, -1.8794083236173342, -1.9562370141626235, -1.70264255011287, -1.493068537928019, -1.741735521525565]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.9251231633851376, -1.720160106338767, -3.543903226725263, -3.7513081800854025, -3.6105039622564163, -3.5562560010666857, -2.053759583920339]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2606221579850985, -1.1923235798010647, -1.5804642021791346, -1.6270085044692602, -1.4138108451364193, -1.2444068877858772, -1.1640235904442078]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.2893348428525095, -1.2224762499322477, -1.8621498011616542, -1.8736081652418384, -1.665569724428688, -1.3951467038452274, -1.2036692687656665]}}