{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:52.580908", "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": "2011-Jul-05_to_2011-Jul-07_120.5_-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": 2011070000424}, "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 05 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 07 2011"}, "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": 81549.57414094519}, "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"]}, "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": -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": 120.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "120.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 118.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 124.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -26.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -22.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-07-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.0, -22.25], [119.53, -22.47], [119.68, -22.82], [119.75, -22.85], [120.0, -22.75], [120.25, -22.85], [120.5, -22.75], [120.75, -22.85], [121.0, -22.75], [121.53, -22.97], [121.68, -23.32], [121.75, -23.35], [122.0, -23.25], [122.53, -23.47], [122.7, -23.87], [123.0, -23.75], [123.53, -23.97], [123.68, -24.32], [123.75, -24.35], [124.0, -24.25], [124.53, -24.47], [124.68, -24.82], [125.03, -24.97], [125.25, -25.5], [125.15, -25.75], [125.25, -26.0], [125.03, -26.53], [124.5, -26.75], [124.25, -26.65], [124.0, -26.75], [123.75, -26.65], [123.5, -26.75], [122.97, -26.53], [122.82, -26.18], [122.47, -26.03], [122.32, -25.68], [122.25, -25.65], [122.0, -25.75], [121.47, -25.53], [121.32, -25.18], [121.25, -25.15], [121.0, -25.25], [120.47, -25.03], [120.32, -24.68], [120.25, -24.65], [120.0, -24.75], [119.75, -24.65], [119.5, -24.75], [118.97, -24.53], [118.82, -24.18], [118.75, -24.15], [118.5, -24.25], [117.97, -24.03], [117.75, -23.5], [117.97, -22.97], [118.32, -22.82], [118.47, -22.47], [119.0, -22.25]]]]}, "2011-07-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.0, -22.25], [119.53, -22.47], [119.68, -22.82], [119.75, -22.85], [120.0, -22.75], [120.25, -22.85], [120.5, -22.75], [120.75, -22.85], [121.0, -22.75], [121.53, -22.97], [121.68, -23.32], [121.75, -23.35], [122.0, -23.25], [122.53, -23.47], [122.7, -23.87], [123.0, -23.75], [123.53, -23.97], [123.68, -24.32], [123.75, -24.35], [124.0, -24.25], [124.53, -24.47], [124.68, -24.82], [125.03, -24.97], [125.25, -25.5], [125.15, -25.75], [125.25, -26.0], [125.03, -26.53], [124.5, -26.75], [124.25, -26.65], [124.0, -26.75], [123.75, -26.65], [123.5, -26.75], [122.97, -26.53], [122.82, -26.18], [122.47, -26.03], [122.32, -25.68], [122.25, -25.65], [122.0, -25.75], [121.47, -25.53], [121.32, -25.18], [121.25, -25.15], [121.0, -25.25], [120.47, -25.03], [120.32, -24.68], [120.25, -24.65], [120.0, -24.75], [119.75, -24.65], [119.5, -24.75], [118.97, -24.53], [118.82, -24.18], [118.75, -24.15], [118.5, -24.25], [117.97, -24.03], [117.75, -23.5], [117.97, -22.97], [118.32, -22.82], [118.47, -22.47], [119.0, -22.25]]]]}, "2011-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.0, -22.25], [119.53, -22.47], [119.68, -22.82], [119.75, -22.85], [120.0, -22.75], [120.25, -22.85], [120.5, -22.75], [120.75, -22.85], [121.0, -22.75], [121.53, -22.97], [121.68, -23.32], [121.75, -23.35], [122.0, -23.25], [122.53, -23.47], [122.7, -23.87], [123.0, -23.75], [123.53, -23.97], [123.68, -24.32], [123.75, -24.35], [124.0, -24.25], [124.53, -24.47], [124.68, -24.82], [125.03, -24.97], [125.25, -25.5], [125.15, -25.75], [125.25, -26.0], [125.03, -26.53], [124.5, -26.75], [124.25, -26.65], [124.0, -26.75], [123.75, -26.65], [123.5, -26.75], [122.97, -26.53], [122.82, -26.18], [122.47, -26.03], [122.32, -25.68], [122.25, -25.65], [122.0, -25.75], [121.47, -25.53], [121.32, -25.18], [121.25, -25.15], [121.0, -25.25], [120.47, -25.03], [120.32, -24.68], [120.25, -24.65], [120.0, -24.75], [119.75, -24.65], [119.5, -24.75], [118.97, -24.53], [118.82, -24.18], [118.75, -24.15], [118.5, -24.25], [117.97, -24.03], [117.75, -23.5], [117.97, -22.97], [118.32, -22.82], [118.47, -22.47], [119.0, -22.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.822034158401266}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.700816479362567}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.70839027600556, 10.436088465721355, 10.228548651953247]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [8.043220094416597, 9.001334923806155, 9.036523925574215]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.816055593629418, -4.085843281152695, -4.200550563305589]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.822034158401266, -4.6868357553033775, -4.585613302039519]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.131811937914243, -1.4346150961963202, -1.427652002920158]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.7214476169338284, -1.5196135376030349, -1.5127750579964931]}}