{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:16.162065", "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-Jun-27_to_2017-Jun-29_122.5_-25.0"}, "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": 2017060000880}, "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": "June 27 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 29 2017"}, "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": 69836.82957119154}, "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": -25.0}, "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": 122.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "122.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 121.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 125.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -26.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -23.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.97, -23.47], [121.5, -23.25], [121.75, -23.35], [122.0, -23.25], [122.53, -23.47], [122.68, -23.82], [123.03, -23.97], [123.18, -24.32], [123.25, -24.35], [123.5, -24.25], [123.75, -24.35], [124.0, -24.25], [124.53, -24.47], [124.68, -24.82], [124.75, -24.85], [125.0, -24.75], [125.25, -24.85], [125.5, -24.75], [126.03, -24.97], [126.25, -25.5], [126.03, -26.03], [125.68, -26.18], [125.53, -26.53], [125.18, -26.68], [125.03, -27.03], [124.5, -27.25], [124.25, -27.15], [124.0, -27.25], [123.47, -27.03], [123.32, -26.68], [123.25, -26.65], [123.0, -26.75], [122.47, -26.53], [122.32, -26.18], [122.25, -26.15], [122.0, -26.25], [121.47, -26.03], [121.25, -25.5], [121.35, -25.25], [121.32, -25.18], [120.97, -25.03], [120.75, -24.5], [120.85, -24.25], [120.75, -24.0], [120.97, -23.47]]]]}, "2017-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.97, -23.47], [121.5, -23.25], [121.75, -23.35], [122.0, -23.25], [122.53, -23.47], [122.68, -23.82], [123.03, -23.97], [123.18, -24.32], [123.25, -24.35], [123.5, -24.25], [123.75, -24.35], [124.0, -24.25], [124.53, -24.47], [124.68, -24.82], [124.75, -24.85], [125.0, -24.75], [125.25, -24.85], [125.5, -24.75], [126.03, -24.97], [126.25, -25.5], [126.03, -26.03], [125.68, -26.18], [125.53, -26.53], [125.18, -26.68], [125.03, -27.03], [124.5, -27.25], [124.25, -27.15], [124.0, -27.25], [123.47, -27.03], [123.32, -26.68], [123.25, -26.65], [123.0, -26.75], [122.47, -26.53], [122.32, -26.18], [122.25, -26.15], [122.0, -26.25], [121.47, -26.03], [121.25, -25.5], [121.35, -25.25], [121.32, -25.18], [120.97, -25.03], [120.75, -24.5], [120.85, -24.25], [120.75, -24.0], [120.97, -23.47]]]]}, "2017-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.97, -23.47], [121.5, -23.25], [121.75, -23.35], [122.0, -23.25], [122.53, -23.47], [122.68, -23.82], [123.03, -23.97], [123.18, -24.32], [123.25, -24.35], [123.5, -24.25], [123.75, -24.35], [124.0, -24.25], [124.53, -24.47], [124.68, -24.82], [124.75, -24.85], [125.0, -24.75], [125.25, -24.85], [125.5, -24.75], [126.03, -24.97], [126.25, -25.5], [126.03, -26.03], [125.68, -26.18], [125.53, -26.53], [125.18, -26.68], [125.03, -27.03], [124.5, -27.25], [124.25, -27.15], [124.0, -27.25], [123.47, -27.03], [123.32, -26.68], [123.25, -26.65], [123.0, -26.75], [122.47, -26.53], [122.32, -26.18], [122.25, -26.15], [122.0, -26.25], [121.47, -26.03], [121.25, -25.5], [121.35, -25.25], [121.32, -25.18], [120.97, -25.03], [120.75, -24.5], [120.85, -24.25], [120.75, -24.0], [120.97, -23.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.581703932057621}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.8777198084242697}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.256702872568269, 10.341627526549416, 9.960545450736163]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.485655712374637, 9.800745403316967, 8.744648783196055]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.8168941221911767, -3.737424462227866, -4.078840840853766]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.195642895234698, -4.075744261709474, -4.581703932057621]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4698561275223936, -1.4101597864386213, -1.5326491889649834]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6427819111151603, -1.5579896193203515, -1.6947848366912175]}}