{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:27.822478", "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": "2019-Sep-05_to_2019-Sep-07_131.5_-33.0"}, "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": 2019090000174}, "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": "September 05 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 07 2019"}, "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": 60202.44469411994}, "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": ["Great Australian Bight"]}, "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": -33.0}, "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": 131.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "131.5\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": 133.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -33.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -30.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.25, -31.5], [128.47, -30.97], [129.0, -30.75], [129.25, -30.85], [129.32, -30.82], [129.47, -30.47], [130.0, -30.25], [130.25, -30.35], [130.5, -30.25], [131.03, -30.47], [131.18, -30.82], [131.53, -30.97], [131.68, -31.32], [132.03, -31.47], [132.18, -31.82], [132.25, -31.85], [132.5, -31.75], [132.75, -31.85], [133.0, -31.75], [133.53, -31.97], [133.75, -32.5], [133.53, -33.03], [133.18, -33.18], [133.03, -33.53], [132.5, -33.75], [132.25, -33.65], [132.0, -33.75], [131.75, -33.65], [131.5, -33.75], [131.25, -33.65], [131.0, -33.75], [130.47, -33.53], [130.32, -33.18], [130.25, -33.15], [130.0, -33.25], [129.47, -33.03], [129.32, -32.68], [128.97, -32.53], [128.82, -32.18], [128.47, -32.03], [128.25, -31.5]]]]}, "2019-09-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.25, -31.5], [128.47, -30.97], [129.0, -30.75], [129.25, -30.85], [129.32, -30.82], [129.47, -30.47], [130.0, -30.25], [130.25, -30.35], [130.5, -30.25], [131.03, -30.47], [131.18, -30.82], [131.53, -30.97], [131.68, -31.32], [132.03, -31.47], [132.18, -31.82], [132.25, -31.85], [132.5, -31.75], [132.75, -31.85], [133.0, -31.75], [133.53, -31.97], [133.75, -32.5], [133.53, -33.03], [133.18, -33.18], [133.03, -33.53], [132.5, -33.75], [132.25, -33.65], [132.0, -33.75], [131.75, -33.65], [131.5, -33.75], [131.25, -33.65], [131.0, -33.75], [130.47, -33.53], [130.32, -33.18], [130.25, -33.15], [130.0, -33.25], [129.47, -33.03], [129.32, -32.68], [128.97, -32.53], [128.82, -32.18], [128.47, -32.03], [128.25, -31.5]]]]}, "2019-09-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.25, -31.5], [128.47, -30.97], [129.0, -30.75], [129.25, -30.85], [129.32, -30.82], [129.47, -30.47], [130.0, -30.25], [130.25, -30.35], [130.5, -30.25], [131.03, -30.47], [131.18, -30.82], [131.53, -30.97], [131.68, -31.32], [132.03, -31.47], [132.18, -31.82], [132.25, -31.85], [132.5, -31.75], [132.75, -31.85], [133.0, -31.75], [133.53, -31.97], [133.75, -32.5], [133.53, -33.03], [133.18, -33.18], [133.03, -33.53], [132.5, -33.75], [132.25, -33.65], [132.0, -33.75], [131.75, -33.65], [131.5, -33.75], [131.25, -33.65], [131.0, -33.75], [130.47, -33.53], [130.32, -33.18], [130.25, -33.15], [130.0, -33.25], [129.47, -33.03], [129.32, -32.68], [128.97, -32.53], [128.82, -32.18], [128.47, -32.03], [128.25, -31.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.304617851933244}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.4313646094236425}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.246439341551877, 12.544597872245447, 12.70407240581335]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [10.249771607123023, 10.186239140396538, 10.866840742809757]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.679136181112253, -2.321733177908574, -2.293224469250101]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.304617851933244, -4.198339588988915, -4.072585602074128]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4638649393135807, -1.331111338670803, -1.2854174046659759]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8399935889735426, -1.534021762257807, -1.440574029101885]}}